Articles | Volume 23, issue 4
https://doi.org/10.5194/nhess-23-1433-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-23-1433-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Apr 2023
Research article |
| 20 Apr 2023
| 20 Apr 2023
The effect of deep ocean currents on ocean- bottom seismometers records
Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
Afonso Loureiro
Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
José Luis Duarte
Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
Luis Matias
Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
Tiago Rebelo
Centre of Engineering and Product Development (CEIIA), Av. D. Afonso Henriques, 1825, 4450-017 Matosinhos, Portugal
Tiago Bartolomeu
Centre of Engineering and Product Development (CEIIA), Av. D. Afonso Henriques, 1825, 4450-017 Matosinhos, Portugal
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Margarida Ramalho, Luis Matias, Marta Neres, Michele M. C. Carafa, Alexandra Carvalho, and Paula Teves-Costa
Nat. Hazards Earth Syst. Sci., 22, 117–138, https://doi.org/10.5194/nhess-22-117-2022, https://doi.org/10.5194/nhess-22-117-2022, 2022
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Probabilistic seismic hazard assessment (PSHA) is the most common tool used to decide on the acceptable seismic risk by society and mitigation measures. In slowly deforming regions, such Iberia, the earthquake generation models (EGMs) for PSHA suffer from great uncertainty. In this work we propose two sanity tests to be applied to EGMs, comparing the EGM moment release with constrains derived from GNSS observations or neotectonic modelling. Similar tests should be part of other region studies.
C. Catita, M. P. Teves-Costa, L. Matias, and J. Batlló
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3-W8, 87–92, https://doi.org/10.5194/isprs-archives-XLII-3-W8-87-2019, https://doi.org/10.5194/isprs-archives-XLII-3-W8-87-2019, 2019
Maria Ana Baptista, Jorge Miguel Miranda, Luis Matias, and Rachid Omira
Nat. Hazards Earth Syst. Sci., 17, 1253–1265, https://doi.org/10.5194/nhess-17-1253-2017, https://doi.org/10.5194/nhess-17-1253-2017, 2017
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In this work, we present a methodology to compute a synthetic catalog of tsunami waveforms. To do this, we compute a synthetic earthquake catalog that respects the kinematics of the plate boundary. We use a method to do the fast computation of tsunami waveforms for all events of the synthetic waveform catalog. The method can be used in similar geological environments.
R. Omira, M. A. Baptista, F. Leone, L. Matias, S. Mellas, B. Zourarah, J. M. Miranda, F. Carrilho, and J.-P. Cherel
Nat. Hazards Earth Syst. Sci., 13, 1779–1794, https://doi.org/10.5194/nhess-13-1779-2013, https://doi.org/10.5194/nhess-13-1779-2013, 2013
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Alice Abbate, José M. González Vida, Manuel J. Castro Díaz, Fabrizio Romano, Hafize Başak Bayraktar, Andrey Babeyko, and Stefano Lorito
Nat. Hazards Earth Syst. Sci., 24, 2773–2791, https://doi.org/10.5194/nhess-24-2773-2024, https://doi.org/10.5194/nhess-24-2773-2024, 2024
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Modelling tsunami generation due to a rapid submarine earthquake is a complex problem. Under a variety of realistic conditions in a subduction zone, we propose and test an efficient solution to this problem: a tool that can compute the generation of any potential tsunami in any ocean in the world. In the future, we will explore solutions that would also allow us to model tsunami generation by slower (time-dependent) seafloor displacement.
Mithun Deb, James J. Benedict, Ning Sun, Zhaoqing Yang, Robert D. Hetland, David Judi, and Taiping Wang
Nat. Hazards Earth Syst. Sci., 24, 2461–2479, https://doi.org/10.5194/nhess-24-2461-2024, https://doi.org/10.5194/nhess-24-2461-2024, 2024
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We coupled earth system, hydrology, and hydrodynamic models to generate plausible and physically consistent ensembles of hurricane events and their associated water levels from the open coast to tidal rivers of Delaware Bay and River. Our results show that the hurricane landfall locations and the estuarine wind can significantly amplify the extreme surge in a shallow and converging system, especially when the wind direction aligns with the surge propagation direction.
Ming-Huei Chang, Yen-Chen Huang, Yu-Hsin Cheng, Chuen-Teyr Terng, Jinyi Chen, and Jyh Cherng Jan
Nat. Hazards Earth Syst. Sci., 24, 2481–2494, https://doi.org/10.5194/nhess-24-2481-2024, https://doi.org/10.5194/nhess-24-2481-2024, 2024
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Monitoring the long-term trends in sea surface warming is crucial for informed decision-making and adaptation. This study offers a comprehensive examination of prevalent trend extraction methods. We identify the least-squares regression as suitable for general tasks yet highlight the need to address seasonal signal-induced bias, i.e., the phase–distance imbalance. Our developed method, evaluated using simulated and real data, is unbiased and better than the conventional SST anomaly method.
Thomas P. Collings, Niall D. Quinn, Ivan D. Haigh, Joshua Green, Izzy Probyn, Hamish Wilkinson, Sanne Muis, William V. Sweet, and Paul D. Bates
Nat. Hazards Earth Syst. Sci., 24, 2403–2423, https://doi.org/10.5194/nhess-24-2403-2024, https://doi.org/10.5194/nhess-24-2403-2024, 2024
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Coastal areas are at risk of flooding from rising sea levels and extreme weather events. This study applies a new approach to estimating the likelihood of coastal flooding around the world. The method uses data from observations and computer models to create a detailed map of where these coastal floods might occur. The approach can predict flooding in areas for which there are few or no data available. The results can be used to help prepare for and prevent this type of flooding.
Guangsheng Zhao and Xiaojing Niu
Nat. Hazards Earth Syst. Sci., 24, 2303–2313, https://doi.org/10.5194/nhess-24-2303-2024, https://doi.org/10.5194/nhess-24-2303-2024, 2024
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The purpose of this study is to estimate the spatial distribution of the tsunami hazard in the South China Sea from the Manila subduction zone. The plate motion data are used to invert the degree of locking on the fault plane. The degree of locking is used to estimate the maximum possible magnitude of earthquakes and describe the slip distribution. A spatial distribution map of the 1000-year return period tsunami wave height in the South China Sea was obtained by tsunami hazard assessment.
Mandana Ghanavati, Ian R. Young, Ebru Kirezci, and Jin Liu
Nat. Hazards Earth Syst. Sci., 24, 2175–2190, https://doi.org/10.5194/nhess-24-2175-2024, https://doi.org/10.5194/nhess-24-2175-2024, 2024
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The paper examines the changes in shoreline position of the coast of south-east Australia over a 26-year period to determine whether changes are consistent with observed changes in ocean wave and storm surge climate. The results show that in regions where there have been significant changes in wave energy flux or wave direction, there have also been changes in shoreline position consistent with non-equilibrium longshore drift.
Ina Teutsch, Ralf Weisse, and Sander Wahls
Nat. Hazards Earth Syst. Sci., 24, 2065–2069, https://doi.org/10.5194/nhess-24-2065-2024, https://doi.org/10.5194/nhess-24-2065-2024, 2024
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We investigate buoy and radar measurement data from shallow depths in the southern North Sea. We analyze the role of solitons for the occurrence of rogue waves. This is done by computing the nonlinear soliton spectrum of each time series. In a previous study that considered a single measurement site, we found a connection between the shape of the soliton spectrum and the occurrence of rogue waves. In this study, results for two additional sites are reported.
Marc Igigabel, Marissa Yates, Michalis Vousdoukas, and Youssef Diab
Nat. Hazards Earth Syst. Sci., 24, 1951–1974, https://doi.org/10.5194/nhess-24-1951-2024, https://doi.org/10.5194/nhess-24-1951-2024, 2024
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Changes in sea levels alone do not determine the evolution of coastal hazards. Coastal hazard changes should be assessed using additional factors describing geomorphological configurations, metocean event types (storms, cyclones, long swells, and tsunamis), and the marine environment (e.g., coral reef state and sea ice extent). The assessment completed here, at regional scale including the coasts of mainland and overseas France, highlights significant differences in hazard changes.
Jani Särkkä, Jani Räihä, Mika Rantanen, and Matti Kämäräinen
Nat. Hazards Earth Syst. Sci., 24, 1835–1842, https://doi.org/10.5194/nhess-24-1835-2024, https://doi.org/10.5194/nhess-24-1835-2024, 2024
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We study the relationship between tracks of low-pressure systems and related sea level extremes. We perform the studies by introducing a method to simulate sea levels using synthetic low-pressure systems. We test the method using sites located along the Baltic Sea coast. We find high extremes, where the sea level extreme reaches up to 3.5 m. In addition, we add the maximal value of the mean level of the Baltic Sea (1 m), leading to a sea level of 4.5 m.
Alexey Androsov, Sven Harig, Natalia Zamora, Kim Knauer, and Natalja Rakowsky
Nat. Hazards Earth Syst. Sci., 24, 1635–1656, https://doi.org/10.5194/nhess-24-1635-2024, https://doi.org/10.5194/nhess-24-1635-2024, 2024
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Two numerical codes are used in a comparative analysis of the calculation of the tsunami wave due to an earthquake along the Peruvian coast. The comparison primarily evaluates the flow velocity fields in flooded areas. The relative importance of the various parts of the equations is determined, focusing on the nonlinear terms. The influence of the nonlinearity on the degree and volume of flooding, flow velocity, and small-scale fluctuations is determined.
Robert McCall, Curt Storlazzi, Floortje Roelvink, Stuart Pearson, Roel de Goede, and José Antolínez
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2024-28, https://doi.org/10.5194/nhess-2024-28, 2024
Revised manuscript accepted for NHESS
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Accurate predictions of wave-driven flooding are essential to manage risk on low-lying, reef-lined coasts. Models to provide this information are, however, computationally expensive. We present and validate a modelling system that simulates flood drivers on diverse and complex reef-lined coasts as competently as a full-physics model, but at a fraction of the computational cost to run. This development paves the way for application in large-scale early warning systems and flood risk assessments.
Eric Mortensen, Timothy Tiggeloven, Toon Haer, Bas van Bemmel, Dewi Le Bars, Sanne Muis, Dirk Eilander, Frederiek Sperna Weiland, Arno Bouwman, Willem Ligtvoet, and Philip J. Ward
Nat. Hazards Earth Syst. Sci., 24, 1381–1400, https://doi.org/10.5194/nhess-24-1381-2024, https://doi.org/10.5194/nhess-24-1381-2024, 2024
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Current levels of coastal flood risk are projected to increase in coming decades due to various reasons, e.g. sea-level rise, land subsidence, and coastal urbanization: action is needed to minimize this future risk. We evaluate dykes and coastal levees, foreshore vegetation, zoning restrictions, and dry-proofing on a global scale to estimate what levels of risk reductions are possible. We demonstrate that there are several potential adaptation pathways forward for certain areas of the world.
Charlotte Lyddon, Nguyen Chien, Grigorios Vasilopoulos, Michael Ridgill, Sogol Moradian, Agnieszka Olbert, Thomas Coulthard, Andrew Barkwith, and Peter Robins
Nat. Hazards Earth Syst. Sci., 24, 973–997, https://doi.org/10.5194/nhess-24-973-2024, https://doi.org/10.5194/nhess-24-973-2024, 2024
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Recent storms in the UK, like Storm Ciara in 2020, show how vulnerable estuaries are to the combined effect of sea level and river discharge. We show the combinations of sea levels and river discharges that cause flooding in the Conwy estuary, N Wales. The results showed flooding was amplified under moderate conditions in the middle estuary and elsewhere sea state or river flow dominated the hazard. Combined sea and river thresholds can improve prediction and early warning of compound flooding.
Sergio Padilla, Íñigo Aniel-Quiroga, Rachid Omira, Mauricio González, Jihwan Kim, and Maria A. Baptista
EGUsphere, https://doi.org/10.5194/egusphere-2024-663, https://doi.org/10.5194/egusphere-2024-663, 2024
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The eruption of the Hunga Tonga-Hunga Ha’apai volcano in January 2022 triggered a global phenomenon, including an atmospheric wave and a volcano-meteorological tsunami (VMT). The tsunami, reaching as far as Callao, Peru, 10,000 km away, caused significant coastal impacts. A study delves into understanding these effects, particularly on vessel moorings safety. The findings underscore the importance of enhancing TWS and preparing port authorities for managing such rare events.
Shuaib Rasheed, Simon C. Warder, Yves Plancherel, and Matthew D. Piggott
Nat. Hazards Earth Syst. Sci., 24, 737–755, https://doi.org/10.5194/nhess-24-737-2024, https://doi.org/10.5194/nhess-24-737-2024, 2024
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Here we use a high-resolution bathymetry dataset of the Maldives archipelago, as well as corresponding high numerical model resolution, to carry out a scenario-based tsunami hazard assessment for the entire Maldives archipelago to investigate the potential impact of plausible far-field tsunamis across the Indian Ocean at the island scale. The results indicate that several factors contribute to mitigating and amplifying tsunami waves at the island scale.
Niels J. Korsgaard, Kristian Svennevig, Anne S. Søndergaard, Gregor Luetzenburg, Mimmi Oksman, and Nicolaj K. Larsen
Nat. Hazards Earth Syst. Sci., 24, 757–772, https://doi.org/10.5194/nhess-24-757-2024, https://doi.org/10.5194/nhess-24-757-2024, 2024
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A tsunami wave will leave evidence of erosion and deposition in coastal lakes, making it possible to determine the runup height and when it occurred. Here, we use four lakes now located at elevations of 19–91 m a.s.l. close to the settlement of Saqqaq, West Greenland, to show that at least two giant tsunamis occurred 7300–7600 years ago with runup heights larger than 40 m. We infer that any tsunamis from at least nine giga-scale landslides must have happened 8500–10 000 years ago.
Elke Magda Inge Meyer and Lidia Gaslikova
Nat. Hazards Earth Syst. Sci., 24, 481–499, https://doi.org/10.5194/nhess-24-481-2024, https://doi.org/10.5194/nhess-24-481-2024, 2024
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Storm tides for eight extreme historical storms in the German Bight are modelled using sets of slightly varying atmospheric conditions from the century reanalyses. Comparisons with the water level observations from the gauges Norderney, Cuxhaven and Husum show that single members of the reanalyses are suitable for the reconstruction of extreme storms. Storms with more northerly tracks show less variability within a set and have more potential for accurate reconstruction of extreme water levels.
Emmie M. Bonilauri, Catherine Aaron, Matteo Cerminara, Raphaël Paris, Tomaso Esposti Ongaro, Benedetta Calusi, Domenico Mangione, and Andrew J. L. Harris
EGUsphere, https://doi.org/10.5194/egusphere-2024-221, https://doi.org/10.5194/egusphere-2024-221, 2024
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Currently at Stromboli, for a locally generated tsunami, only 4 minutes of warning are available. We combined tsunami simulations and human exposure to complete a risk analysis. We linked the predicted inundation area and the tsunami warning signals to assess the hazard posed by future tsunamis, and to design escape routes to reach safe areas and to optimise evacuation times. Such products can be used by Civil Protection agencies on Stromboli Island.
Clare Lewis, Tim Smyth, Jess Neumann, and Hannah Cloke
Nat. Hazards Earth Syst. Sci., 24, 121–131, https://doi.org/10.5194/nhess-24-121-2024, https://doi.org/10.5194/nhess-24-121-2024, 2024
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Meteotsunami are the result of atmospheric disturbances and can impact coastlines causing injury, loss of life, and damage to assets. This paper introduces a novel intensity index to allow for the quantification of these events at the shoreline. This has the potential to assist in the field of natural hazard assessment. It was trialled in the UK but designed for global applicability and to become a widely accepted standard in coastal planning, meteotsunami forecasting, and early warning systems.
Chu-En Hsu, Katherine A. Serafin, Xiao Yu, Christie A. Hegermiller, John C. Warner, and Maitane Olabarrieta
Nat. Hazards Earth Syst. Sci., 23, 3895–3912, https://doi.org/10.5194/nhess-23-3895-2023, https://doi.org/10.5194/nhess-23-3895-2023, 2023
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Total water levels (TWLs) induced by tropical cyclones (TCs) are among the leading hazards faced by coastal communities. Using numerical models, we examined how TWL components (surge and wave runup) along the South Atlantic Bight varied during hurricanes Matthew (2016), Dorian (2019), and Isaias (2020). Peak surge and peak wave runup were dominated by wind speeds and relative positions to TCs. The exceedance time of TWLs was controlled by normalized distances to TC and TC translation speeds.
Jean Roger and Bernard Pelletier
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2023-198, https://doi.org/10.5194/nhess-2023-198, 2023
Revised manuscript accepted for NHESS
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This study presents a catalogue of tsunamis having occurred in the Vanuatu Arc. It has been built based on the analysis of existing catalogues, historical documents, and sea-level data from the 5 coastal tide gauges. 100 tsunamis of local, regional or far-field origins are listed since 1863. 15 of them show maximum wave amplitude and/or run-up height of above 1 m and 8 between 0.3 and 1 m. Details are provided for particular events, including debated events or events with no known origin(s).
Enrico Duo, Juan Montes, Marine Le Gal, Tomás Fernández-Montblanc, Paolo Ciavola, and Clara Armaroli
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2023-197, https://doi.org/10.5194/nhess-2023-197, 2023
Revised manuscript accepted for NHESS
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The present work, developed within the EU H2020 European Coastal Flood Awareness System ECFAS project, presents an approach used to estimate coastal flood direct impacts on population, buildings, and roads along the European coasts. The findings demonstrate that the ECFAS Impact approach offers valuable estimates for affected populations, reliable damage assessments for buildings and roads, and improved accuracy compared to traditional grid-based approaches.
Maude Biguenet, Eric Chaumillon, Pierre Sabatier, Antoine Bastien, Emeline Geba, Fabien Arnaud, Thibault Coulombier, and Nathalie Feuillet
Nat. Hazards Earth Syst. Sci., 23, 3761–3788, https://doi.org/10.5194/nhess-23-3761-2023, https://doi.org/10.5194/nhess-23-3761-2023, 2023
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This work documents the impact of Hurricane Irma (2017) on the Codrington barrier and lagoon on Barbuda Island. Irma caused two wide breaches in the sandy barrier, which remained unopened for 250 years. The thick and extensive sand sheet at the top of the lagoon fill was attributed to Irma. This unique deposit in a 3700-year record confirms Irma's exceptional character. This case study illustrates the consequences of high-intensity hurricanes in low-lying islands in a global warming context.
Leigh Richard MacPherson, Arne Arns, Svenja Fischer, Fernando Javier Méndez, and Jürgen Jensen
Nat. Hazards Earth Syst. Sci., 23, 3685–3701, https://doi.org/10.5194/nhess-23-3685-2023, https://doi.org/10.5194/nhess-23-3685-2023, 2023
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Efficient adaptation planning for coastal flooding caused by extreme sea levels requires accurate assessments of the underlying hazard. Tide-gauge data alone are often insufficient for providing the desired accuracy but may be supplemented with historical information. We estimate extreme sea levels along the German Baltic coast and show that relying solely on tide-gauge data leads to underestimations. Incorporating historical information leads to improved estimates with reduced uncertainties.
Anne Margaret H. Smiley, Suzanne P. Thompson, Nathan S. Hall, and Michael F. Piehler
Nat. Hazards Earth Syst. Sci., 23, 3635–3649, https://doi.org/10.5194/nhess-23-3635-2023, https://doi.org/10.5194/nhess-23-3635-2023, 2023
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Floodwaters can deliver reactive nitrogen to sensitive aquatic systems and diminish water quality. We assessed the nitrogen removal capabilities of flooded habitats and urban landscapes. Differences in processing rates across land cover treatments and between nutrient treatments suggest that abundance and spatial distributions of habitats, as well as storm characteristics, influence landscape-scale nitrogen removal. Results have important implications for coastal development and climate change.
Marine Le Gal, Tomás Fernández-Montblanc, Enrico Duo, Juan Montes Perez, Paulo Cabrita, Paola Souto Ceccon, Véra Gastal, Paolo Ciavola, and Clara Armaroli
Nat. Hazards Earth Syst. Sci., 23, 3585–3602, https://doi.org/10.5194/nhess-23-3585-2023, https://doi.org/10.5194/nhess-23-3585-2023, 2023
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Assessing coastal hazards is crucial to mitigate flooding disasters. In this regard, coastal flood databases are valuable tools. This paper describes a new coastal flood map catalogue covering the entire European coastline, as well as the methodology to build it and its accuracy. The catalogue focuses on frequent extreme events and relies on synthetic scenarios estimated from local storm conditions. Flood-prone areas and regions sensitive to storm duration and water level peak were identified.
Neng-Ti Yu, Cheng-Hao Lu, I-Chin Yen, Jia-Hong Chen, Jiun-Yee Yen, and Shyh-Jeng Chyi
Nat. Hazards Earth Syst. Sci., 23, 3525–3542, https://doi.org/10.5194/nhess-23-3525-2023, https://doi.org/10.5194/nhess-23-3525-2023, 2023
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A paleotsunami deposit of cliff-top basalt debris was identified on the Penghu Islands in the southern Taiwan Strait and related to the 1661 earthquake in southwest Taiwan. A minimum wave height of 3.2 m is estimated to have rotated the biggest boulder for over 30 m landwards onto the cliff top at 2.5 m a.s.l. The event must have been huge compared to the 1994 M 6.4 earthquake with the ensuing 0.4 m high tsunami in the same area, validating the intimidating tsunami risks in the South China Sea.
Ye Yuan, Huaiwei Yang, Fujiang Yu, Yi Gao, Benxia Li, and Chuang Xing
Nat. Hazards Earth Syst. Sci., 23, 3487–3507, https://doi.org/10.5194/nhess-23-3487-2023, https://doi.org/10.5194/nhess-23-3487-2023, 2023
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Rip currents are narrow jets of offshore-directed flow that originated in the surf zone, which can take swimmers of all ability levels into deeper water unawares. In this study, a 1 m fine-resolution wave-resolving model was configured to study rip current variability and the optimal swimmer escape strategies. Multiple factors contribute to the survival of swimmers. However, for weak-to-moderate rip and longshore currents, swimming onshore consistently seems to be the most successful strategy.
Benedikt Mester, Thomas Vogt, Seth Bryant, Christian Otto, Katja Frieler, and Jacob Schewe
Nat. Hazards Earth Syst. Sci., 23, 3467–3485, https://doi.org/10.5194/nhess-23-3467-2023, https://doi.org/10.5194/nhess-23-3467-2023, 2023
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In 2019, Cyclone Idai displaced more than 478 000 people in Mozambique. In our study, we use coastal flood modeling and satellite imagery to construct a counterfactual cyclone event without the effects of climate change. We show that 12 600–14 900 displacements can be attributed to sea level rise and the intensification of storm wind speeds due to global warming. Our impact attribution study is the first one on human displacement and one of very few for a low-income country.
Kévin Dubois, Morten Andreas Dahl Larsen, Martin Drews, Erik Nilsson, and Anna Rutgersson
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2023-176, https://doi.org/10.5194/nhess-2023-176, 2023
Revised manuscript accepted for NHESS
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Both extreme river discharge and storm surges can interact at the coast and lead to flooding. However, it is difficult to predict flood levels during such compound events because they are rare and complex. Here, we focus on the quantification of uncertainties; and we investigate the sources of limitations while carrying out such analyses at Halmstad city (Sweden). Based on a sensitivity analysis, we emphasize that both the choice of data source and statistical methodology influence the results.
Olivier Cavalié, Frédéric Cappa, and Béatrice Pinel-Puysségur
Nat. Hazards Earth Syst. Sci., 23, 3235–3246, https://doi.org/10.5194/nhess-23-3235-2023, https://doi.org/10.5194/nhess-23-3235-2023, 2023
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Coastal areas are fragile ecosystems that face multiple hazards. In this study, we measured the downward motion of the Nice Côte d'Azur Airport (France) that was built on reclaimed area and found that it has subsided from 16 mm yr-1 in the 1990s to 8 mm yr-1 today. A continuous remote monitoring of the platform will provide key data for a detailed investigation of future subsidence maps, and this contribution will help to evaluate the potential failure of part of the airport platform.
Wagner L. L. Costa, Karin R. Bryan, and Giovanni Coco
Nat. Hazards Earth Syst. Sci., 23, 3125–3146, https://doi.org/10.5194/nhess-23-3125-2023, https://doi.org/10.5194/nhess-23-3125-2023, 2023
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For predicting flooding events at the coast, topo-bathymetric data are essential. However, elevation data can be unavailable. To tackle this issue, recent efforts have centred on the use of satellite-derived topography (SDT) and bathymetry (SDB). This work is aimed at evaluating their accuracy and use for flooding prediction in enclosed estuaries. Results show that the use of SDT and SDB in numerical modelling can produce similar predictions when compared to the surveyed elevation data.
Joshua Kiesel, Marvin Lorenz, Marcel König, Ulf Gräwe, and Athanasios T. Vafeidis
Nat. Hazards Earth Syst. Sci., 23, 2961–2985, https://doi.org/10.5194/nhess-23-2961-2023, https://doi.org/10.5194/nhess-23-2961-2023, 2023
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Among the Baltic Sea littoral states, Germany is anticipated to experience considerable damage as a result of increased coastal flooding due to sea-level rise (SLR). Here we apply a new modelling framework to simulate how flooding along the German Baltic Sea coast may change until 2100 if dikes are not upgraded. We find that the study region is highly exposed to flooding, and we emphasise the importance of current plans to update coastal protection in the future.
Rashid Haider, Sajid Ali, Gösta Hoffmann, and Klaus Reicherter
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2023-148, https://doi.org/10.5194/nhess-2023-148, 2023
Revised manuscript accepted for NHESS
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The Coastlines bordering the Arabian Sea has yielded various tsunamites reflecting its high hazard potential and recurrences. My PhD project aims at the estimation and zonation of the hazards and risks associated. This publication is a continuation of the previous publication (Haider et al., 2023), which focused on hazard estimation through a multi-proxy approach. This part of the study estimates the risk potential through integrated tsunami inundation analysis.
Zhang Haixia, Cheng Meng, and Fang Weihua
Nat. Hazards Earth Syst. Sci., 23, 2697–2717, https://doi.org/10.5194/nhess-23-2697-2023, https://doi.org/10.5194/nhess-23-2697-2023, 2023
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Simultaneous storm surge and waves can cause great damage due to cascading effects. Quantitative joint probability analysis is critical to determine their optimal protection design values. The joint probability of the surge and wave for the eastern coasts of Leizhou Peninsula and Hainan are estimated with a Gumbel copula based on 62 years of numerically simulated data, and the optimal design values under various joint return periods are derived using the non-linear programming method.
Clare Lewis, Tim Smyth, David Williams, Jess Neumann, and Hannah Cloke
Nat. Hazards Earth Syst. Sci., 23, 2531–2546, https://doi.org/10.5194/nhess-23-2531-2023, https://doi.org/10.5194/nhess-23-2531-2023, 2023
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Meteotsunami are globally occurring water waves initiated by atmospheric disturbances. Previous research has suggested that in the UK, meteotsunami are a rare phenomenon and tend to occur in the summer months. This article presents a revised and updated catalogue of 98 meteotsunami that occurred between 1750 and 2022. Results also demonstrate a larger percentage of winter events and a geographical pattern highlighting the
hotspotregions that experience these events.
Melissa Wood, Ivan D. Haigh, Quan Quan Le, Hung Nghia Nguyen, Hoang Ba Tran, Stephen E. Darby, Robert Marsh, Nikolaos Skliris, Joël J.-M. Hirschi, Robert J. Nicholls, and Nadia Bloemendaal
Nat. Hazards Earth Syst. Sci., 23, 2475–2504, https://doi.org/10.5194/nhess-23-2475-2023, https://doi.org/10.5194/nhess-23-2475-2023, 2023
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We used a novel database of simulated tropical cyclone tracks to explore whether typhoon-induced storm surges present a future flood risk to low-lying coastal communities around the South China Sea. We found that future climate change is likely to change tropical cyclone behaviour to an extent that this increases the severity and frequency of storm surges to Vietnam, southern China, and Thailand. Consequently, coastal flood defences need to be reviewed for resilience against this future hazard.
Sang-Guk Yum, Moon-Soo Song, and Manik Das Adhikari
Nat. Hazards Earth Syst. Sci., 23, 2449–2474, https://doi.org/10.5194/nhess-23-2449-2023, https://doi.org/10.5194/nhess-23-2449-2023, 2023
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This study performed analysis on typhoon-induced coastal morphodynamics for the Mokpo coast. Wetland vegetation was severely impacted by Typhoon Soulik, with 87.35 % of shoreline transects experiencing seaward migration. This result highlights the fact that sediment resuspension controls the land alteration process over the typhoon period. The land accretion process dominated during the pre- to post-typhoon periods.
Olle Räty, Marko Laine, Ulpu Leijala, Jani Särkkä, and Milla M. Johansson
Nat. Hazards Earth Syst. Sci., 23, 2403–2418, https://doi.org/10.5194/nhess-23-2403-2023, https://doi.org/10.5194/nhess-23-2403-2023, 2023
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We studied annual maximum sea levels in the Finnish coastal region. Our aim was to better quantify the uncertainty in them compared to previous studies. Using four statistical models, we found out that hierarchical models, which shared information on sea-level extremes across Finnish tide gauges, had lower uncertainty in their results in comparison with tide-gauge-specific fits. These models also suggested that the shape of the distribution for extreme sea levels is similar on the Finnish coast.
Christian Ferrarin, Florian Pantillon, Silvio Davolio, Marco Bajo, Mario Marcello Miglietta, Elenio Avolio, Diego S. Carrió, Ioannis Pytharoulis, Claudio Sanchez, Platon Patlakas, Juan Jesús González-Alemán, and Emmanouil Flaounas
Nat. Hazards Earth Syst. Sci., 23, 2273–2287, https://doi.org/10.5194/nhess-23-2273-2023, https://doi.org/10.5194/nhess-23-2273-2023, 2023
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The combined use of meteorological and ocean models enabled the analysis of extreme sea conditions driven by Medicane Ianos, which hit the western coast of Greece on 18 September 2020, flooding and damaging the coast. The large spread associated with the ensemble highlighted the high model uncertainty in simulating such an extreme weather event. The different simulations have been used for outlining hazard scenarios that represent a fundamental component of the coastal risk assessment.
Charline Dalinghaus, Giovanni Coco, and Pablo Higuera
Nat. Hazards Earth Syst. Sci., 23, 2157–2169, https://doi.org/10.5194/nhess-23-2157-2023, https://doi.org/10.5194/nhess-23-2157-2023, 2023
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Wave setup is a critical component of coastal flooding. Consequently, understanding and being able to predict wave setup is vital to protect coastal resources and the population living near the shore. Here, we applied machine learning to improve the accuracy of present predictors of wave setup. The results show that the new predictors outperform existing formulas demonstrating the capability of machine learning models to provide a physically sound description of wave setup.
Ina Teutsch, Markus Brühl, Ralf Weisse, and Sander Wahls
Nat. Hazards Earth Syst. Sci., 23, 2053–2073, https://doi.org/10.5194/nhess-23-2053-2023, https://doi.org/10.5194/nhess-23-2053-2023, 2023
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Rogue waves exceed twice the significant wave height. They occur more often than expected in the shallow waters off Norderney. When applying a nonlinear Fourier transform for the Korteweg–de Vries equation to wave data from Norderney, we found differences in the soliton spectra of time series with and without rogue waves. A strongly outstanding soliton in the spectrum indicated an enhanced probability for rogue waves. We could attribute spectral solitons to the measured rogue waves.
Philipp Heinrich, Stefan Hagemann, Ralf Weisse, Corinna Schrum, Ute Daewel, and Lidia Gaslikova
Nat. Hazards Earth Syst. Sci., 23, 1967–1985, https://doi.org/10.5194/nhess-23-1967-2023, https://doi.org/10.5194/nhess-23-1967-2023, 2023
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High seawater levels co-occurring with high river discharges have the potential to cause destructive flooding. For the past decades, the number of such compound events was larger than expected by pure chance for most of the west-facing coasts in Europe. Additionally rivers with smaller catchments showed higher numbers. In most cases, such events were associated with a large-scale weather pattern characterized by westerly winds and strong rainfall.
Alexander Böhme, Birgit Gerkensmeier, Benedikt Bratz, Clemens Krautwald, Olaf Müller, Nils Goseberg, and Gabriele Gönnert
Nat. Hazards Earth Syst. Sci., 23, 1947–1966, https://doi.org/10.5194/nhess-23-1947-2023, https://doi.org/10.5194/nhess-23-1947-2023, 2023
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External surges in the North Sea are caused by low-pressure cells travelling over the northeast Atlantic. They influence extreme water levels on the German coast and have to be considered in the design process of coastal defence structures. This study collects data about external surges from 1995–2020 and analyses their causes, behaviours and potential trends. External surges often occur less than 72 h apart, enabling a single storm surge to be influenced by more than one external surge.
Kenta Tozato, Shuji Moriguchi, Shinsuke Takase, Yu Otake, Michael R. Motley, Anawat Suppasri, and Kenjiro Terada
Nat. Hazards Earth Syst. Sci., 23, 1891–1909, https://doi.org/10.5194/nhess-23-1891-2023, https://doi.org/10.5194/nhess-23-1891-2023, 2023
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This study presents a framework that efficiently investigates the optimal placement of facilities probabilistically based on advanced numerical simulation. Surrogate models for the numerical simulation are constructed using a mode decomposition technique. Monte Carlo simulations using the surrogate models are performed to evaluate failure probabilities. Using the results of the Monte Carlo simulations and the genetic algorithm, optimal placements can be investigated probabilistically.
Job C. M. Dullaart, Sanne Muis, Hans de Moel, Philip J. Ward, Dirk Eilander, and Jeroen C. J. H. Aerts
Nat. Hazards Earth Syst. Sci., 23, 1847–1862, https://doi.org/10.5194/nhess-23-1847-2023, https://doi.org/10.5194/nhess-23-1847-2023, 2023
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Coastal flooding is driven by storm surges and high tides and can be devastating. To gain an understanding of the threat posed by coastal flooding and to identify areas that are especially at risk, now and in the future, it is crucial to accurately model coastal inundation and assess the coastal flood hazard. Here, we present a global dataset with hydrographs that represent the typical evolution of an extreme sea level. These can be used to model coastal inundation more accurately.
Elin Andrée, Jian Su, Morten Andreas Dahl Larsen, Martin Drews, Martin Stendel, and Kristine Skovgaard Madsen
Nat. Hazards Earth Syst. Sci., 23, 1817–1834, https://doi.org/10.5194/nhess-23-1817-2023, https://doi.org/10.5194/nhess-23-1817-2023, 2023
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When natural processes interact, they may compound each other. The combined effect can amplify extreme sea levels, such as when a storm occurs at a time when the water level is already higher than usual. We used numerical modelling of a record-breaking storm surge in 1872 to show that other prior sea-level conditions could have further worsened the outcome. Our research highlights the need to consider the physical context of extreme sea levels in measures to reduce coastal flood risk.
Ekaterina Didenkulova, Ira Didenkulova, and Igor Medvedev
Nat. Hazards Earth Syst. Sci., 23, 1653–1663, https://doi.org/10.5194/nhess-23-1653-2023, https://doi.org/10.5194/nhess-23-1653-2023, 2023
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The paper is dedicated to freak wave accidents which happened in the world ocean in 2005–2021 and that were described in mass media sources. The database accounts for 429 events, all of which resulted in ship or coastal and offshore structure damage and/or human losses. In agreement with each freak wave event, we put background wave and wind conditions extracted from the climate reanalysis ERA5. We analyse their statistics and discuss the favourable conditions for freak wave occurrence.
Havu Pellikka, Milla M. Johansson, Maaria Nordman, and Kimmo Ruosteenoja
Nat. Hazards Earth Syst. Sci., 23, 1613–1630, https://doi.org/10.5194/nhess-23-1613-2023, https://doi.org/10.5194/nhess-23-1613-2023, 2023
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We explore the rate of past and future sea level rise at the Finnish coast, northeastern Baltic Sea, in 1901–2100. For this analysis, we use tide gauge observations, modelling results, and a probabilistic method to combine information from several sea level rise projections. We provide projections of local mean sea level by 2100 as probability distributions. The results can be used in adaptation planning in various sectors with different risk tolerance, e.g. land use planning or nuclear safety.
Chen Chen, Charles Koll, Haizhong Wang, and Michael K. Lindell
Nat. Hazards Earth Syst. Sci., 23, 733–749, https://doi.org/10.5194/nhess-23-733-2023, https://doi.org/10.5194/nhess-23-733-2023, 2023
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This paper uses empirical-data-based simulation to analyze how to evacuate efficiently from disasters. We find that departure delay time and evacuation decision have significant impacts on evacuation results. Evacuation results are more sensitive to walking speed, departure delay time, evacuation participation, and destinations than to other variables. This model can help authorities to prioritize resources for hazard education, community disaster preparedness, and resilience plans.
Cited articles
Alfred-Wegener-Institut, Helmholtz-Zentrum fur Polar- und Meeresforschung:
DEPAS (Deutscher Gerate-Pool fur amphibische Seismologie): German Instrument
Pool for Amphibian Seismology, J. Largescale Res. Facil., 3,
A122, https://doi.org/10.17815/jlsrf-3-165, 2017.
Almeida, M. M. and Dubert, J.: The structure of tides in the Western Iberia
region, Cont. Shelf Res., 26, 385–400,
https://doi.org/10.1016/j.csr.2005.11.011, 2006.
An, C., Cai, C., Zhou, L., and Yang, T.: Characteristics of low-frequency
horizontal noise of ocean-Bottom Seismic data, Seismol. Res. Lett.,
93, 257–267, https://doi.org/10.1785/0220200349, 2022.
Ardhuin, F., Gualtieri, L., and Stutzmann, E.: How ocean waves rock the
Earth: Two mechanisms explain microseisms with periods 3 to 300 s, Geophys.
Res. Lett. 42, 765–772, https://doi.org/10.1002/2014GL062782, 2015.
Bazin, S., Feuillet, N., Duclos, C., Crawford, W., Nercessian, A.,
Bengoubou-Valérius, M., Beauducel, F., and Singh, S. C.: The 2004–2005
Les Saintes (French West Indies) seismic aftershock sequence observed with
ocean bottom seismometers, Tectonophysics, 489, 91–103,
https://doi.org/10.1016/j.tecto.2010.04.005, 2010.
Bowden, D. C., Kohler, M. D., Tsai, V. S., and Weeraratne, D. S.: Offshore
Southern California lithospheric velocity structure from noise
cross-correlation functions, J. Geophys. Res.-Solid Earth, 121, 3415–3427,
https://doi.org/10.1002/2016JB012919, 2016.
Bromirski, P. D., Duennebier, F. K., and Stephen, R. A.: Midocean
microseisms, Geochem. Geophys. Geosys., 6, Q04009,
https://doi.org/10.1029/2004GC000768, 2005.
Civiero, C., Strak, V., Custódio, S., Silveira, G., Rawlinson, N.,
Arroucau, P., and Corela, C.: A common deep source for upper-mantle upwellings
below the Ibero-western Maghreb region from teleseismic P-wave travel-time
tomography, J. Geophys. Res.-Solid Earth, 124, 1781–1801,
https://doi.org/10.1029/2018JB016531, 2018.
Civiero, C., Custódio, S., Rawlinson, N., Strak, V., Silveira, G.,
Arroucau, P., and Corela, C.: Thermal nature of mantle upwellings below the
Ibero-western Maghreb region inferred from teleseismic tomography, Earth
Planet. Sci. Lett., 499, 157–172,
https://doi.org/10.1016/j.epsl.2018.07.024, 2019.
Corela, C.: Ocean bottom seismic noise: applications for the crust
knowledge, interaction ocean-atmosphere and instrumental behavior, PhD
thesis – Science Faculty of Lisbon University, 1-353, http://hdl.handle.net/10451/15805 (last access: 12 April 2023), 2014.
Corela, C., Silveira, G., Matias, L., Schimmel, M., and Geissler, W.: Ambient
seismic noise tomography of SW Iberia integrating seafloor and land-based
data, Tectonophysics, 700–701, 131–149,
https://doi.org/10.1016/j.tecto.2017.02.012, 2017.
Crawford, W. C. and Webb, S. C.: Identifying and removing tilt noise from
low-frequency (< 0.1 Hz) seafloor vertical seismic data,
B. Seismol. Soc. Am., 90, 952–963,
https://doi.org/10.1785/0119990121, 2000.
Díaz, J., Gallart, J., and Gaspà, O.: Atypical seismic signals at
the Galicia Margin, North Atlantic Ocean, related to the resonance of
subsurface fluid-filled cracks, Tectonophysics, 433, 1–13,
https://doi.org/10.1016/j.tecto.2007.01.004, 2007.
Doran, A. K. and Laske, G.: Infragravity waves and horizontal seafloor
compliance, J. Geophys. Res., 121, 260–278,
https://doi.org/10.1002/2015jB012511, 2015.
Duennebier, F. K. and Sutton, G. H.: Fidelity of ocean bottom seismometers,
Mar. Geophys. Res., 17, 535–555, https://doi.org/10.1007/BF01204343,
1995.
Duennebier, F. K., Blackinton, J. G., and Sutton, G.: Current-Generated
Noise Recorded on Ocean Bottom Seismometers, Mar. Geophys. Res., 5, 109–115,
https://doi.org/10.1007/BF00310316, 1981.
EMSO Portugal: Monitorização continuada de fatores bióticos e abióticos através de observatórios submarinos, https://emso-pt.pt/ (last acccess: 17 April 2023), 2020.
Essing, D., Schlindwein, V., Schmidt-Aursch, M. C., Hadziioannou, C., and
Stähler, S. C.: Characteristics of Current-Induced Harmonic Tremor
Signals in Ocean-Bottom Seismometer Records, Seismol. Res. Lett., 92,
3100–3112, https://doi.org/10.1785/0220200397, 2021.
Franek, P., Mienert, J., Buenz, B., and Géli, L.: Character of seismic
motion at a location of a gas hydrate bearing mud volcano on the SW Barents
Sea margin, J. Geophys. Res., 119, 6159–6177,
https://doi.org/10.1002/2014JB010990, 2014.
Garrett, C. and Kunze, E.: Internal Tide Generation in the Deep Ocean, Ann.
Rev. Fluid Mech., 39, 57–87,
https://doi.org/10.1146/annurev.fluid.39.050905.110227, 2007.
Geissler, W. H., Matias, L., Stich, D., Carrilho, F., Jokat, W., Monna, S.,
IbenBrahim, A., Mancilla, F., Gutscher, M.-A., Sallarès, V., and Zitellini,
N.: Focal mechanisms for sub–crustal earthquakes in the Gulf of Cadiz from
a dense OBS deployment, Geophys. Res. Lett., 37, L18309, https://doi.org/10.1029/2010GL044289, 2010.
Griffin, O. M.: Vortex-induced vibrations of marine cables and structures,
Technical Report, Naval Research Lab, Washington, D. C., https://apps.dtic.mil/dtic/tr/fulltext/u2/a157481.pdf (last access: 12 April 2023), 1985.
Hernández-Molina, F. J., Serra, N., Stow, D. A. V., Llave, E., Ercilla,
G., and van Rooij, D.: Along-slope oceanographic processes and sedimentary
products around the Iberian margin, Geo-Mar. Lett., 31,
315–341, https://doi.org/10.1007/s00367-011-0242-2, 2011.
Hernández-Molina, F. J., Wåhlin, A., Bruno, M., Ercilla, G., Llave,
E., Serra, N., Rosón, G., Puig, P., Rebesco, M., Van Rooij, D., Roque,
D., González-Pola, C., Sánchez, F., Gómez, M., Preu, B.,
Schwenk, T., Hanebuth, T. J. J., Sánchez Leal, R. F.,
García-Lafuente, J., Brackenridge, R. E., Juan C., Stow, D. A. V., and Sánchez-González, J. M.: Oceanographic
processes and morphosedimentary products along the Iberian Margins: A new
multidisciplinary approach, Mar. Geol., 378, 127–156,
https://doi.org/10.1016/j.margeo.2015.12.008, 2016.
Instituto Dom Luiz: DUNE Project, Ocean Bottom Seismometer Data (FCT), Instituto Dom Luiz [data set], https://idl.ciencias.ulisboa.pt/dune-project, last access: 17 April 2023.
Izquierdo, A. and Mikolajewicz, U.: The role of tides in the spreading of
Mediterranean Outflow waters along the southwestern Iberian margin, Ocean
Modell., 133, 27–43, https://doi.org/10.1016/j.ocemod.2018.08.003, 2019.
Johnson, S. H. and McAlister, R. E.: Bottom seismometer observations of
airgun signals at Lopez Island, Mar. Geophys. Res., 5, 87–94,
https://doi.org/10.1007/BF00310314, 1981.
Kovachev, S. A., Demidova, T. A., and Son'kin, A. V.: Properties of noise registered by Pop-Up Ocean Bottom
Seismographs, J. Atmos. Ocean. Technol., 883–888,
https://doi.org/10.1175/1520-0426(1997)014<0883:PONRBP>2.0.CO;2, 1997.
Krischer, L., Megies, T., Barsch, R., Beyreuther, M., Lecocq, T., Caudron,
C., and Wassermann, J.: ObsPy: a bridge for seismology into the scientific
Python ecosystem, Comput. Sci. Discovery, 8, 014003.
http://stacks.iop.org/1749-4699/8/i=1/a=014003 (last access: 12 April 2023), 2015.
Lewis, B. and Tuthill, J.: Instrumental Waveform Distortion on Ocean Bottom
Seismometers, Mar. Geophys. Res., 5, 79–86,
https://doi.org/10.1007/BF00310313, 1981.
Longuet-Higgins, M. S.: A theory of the origin of microseisms, Phil. Trans.
Roy. Soc. Lond. A, 243, 1–35,
https://doi.org/10.1098/rsta.1959.0012, 1950.
Loureiro, A., Afilhado, A., Matias, L., Moulin, M., and Aslanian, D.: Monte
Carlos approach to assess the uncertainty of wide-angle layered models:
Application to the Santos Basin, Brazil, Tectonophysics, 683, 286–307,
https://doi.org/10.1016/j.tecto.2016.05.040, 2016.
MacKinnon, J.: Mountain waves in the deep ocean, Nature, 501, 320–321,
https://doi.org/10.1038/501321a, 2013.
Meier, M. and Schlindwein, V.: First in situ seismic record of spreading
events at the ultraslow spreading Southwest Indian ridge, Geophys. Res.
Lett., 45, 10360–10368, https://doi.org/10.1029/2018gl079928, 2018.
Monigle, P. W., Bohnenstiehl, D. R., Tolstoy, M., and Waldhauser, F.:
Seismic tremor at the 9_500N East Pacific Rise eruption site,
Geochem. Geophys. Geosys., 10, Q11T08, https://doi.org/10.1029/2009GC002561, 2009.
Monna, S., Argnani, A., Cimini, G. B., Frugoni, F., and Montuori, C.: Constrains
on the geodynamics evolution of the Africa-Iberia plate margin across the
Gibraltar Strait from seismic tomography, Geosci. Front., 6, 39–48,
https://doi.org/10.1016/j.gsf.2014.02.003, 2014.
Nikurashin, M. and Ferrari, R.: Radiation and dissipation of internal waves
generated by geostrophic flows impinging on small-scale topography: Theory,
J. Phys. Oceanogr., 40, 1055–1074, https://doi.org/10.1175/2009JPO4199.1,
2010a.
Nikurashin, M. and Ferrari, R.: Radiation and dissipation of internal waves
generated by geostrophic flows impinging on small-scale topography:
Application to the Southern Ocean, J. Phys. Oceanogr., 40, 2025–2042,
https://doi.org/10.1175/2010JPO4315.1, 2010b.
Peterson, J.: Observations and Modeling of Seismic Background Noise,
U.S.G.S, Open File Report, 93-322, 95 p., https://doi.org/10.3133/ofr93322, 1993.
Pontoise, B. and Hello, Y.: Monochromatic infra-sound waves recorded
offshore Ecuador: Possible evidence of methane release, Terra Nova, 14,
425–435, https://doi.org/10.1046/j.1365-3121.2002.00437.x, 2002.
Quaresma, L. S. and Pichon, A.: Modelling the barotropic tide along the
west-Iberian margin, J. Mar. Syst., 109–110, S3–S25,
https://doi.org/10.1016/j.jmarsys.2011.09.016, 2013.
Ramakrushana Reddy, Dewangan, T. P., Arya, L., Singha, P., and Kamesh Raju,
R. A.: Tidal triggering of the harmonic noise in ocean-bottom seismometers,
Seismol. Res. Lett., 91, 803–813, https://doi.org/10.1785/0220190080, 2020.
Rebesco, M., Hernández-Molina, F. J., Van Rooij, D., and Wåhlin, A.:
Contourites and associated sediments controlled by deep-water circulation
processes: state of the art and future considerations, Mar. Geol., 352,
111–154, https://doi.org/10.1016/j.margeo.2014.03.011, 2014.
Shepard, F. P., Marshall, N. F., McLoughlin, P. A., and Sullivan, G. G.: Currents in submarine canyons and other seavalleys, American Association of Petroleum Geologists, Stud. Geol., 117, 304–305, https://doi.org/10.1017/S0016756800030612, 1980.
Silva, S., Terrinha, P., Matias, L., Duarte, J. C., Roque, C., Ranero, C.
R., Geissler, W., and Zitellini, N.: Micro-seismicity in the Gulf of Cadiz:
Is there a link between micro-seismicity, high magnitude earthquakes and
active faults?, Tectonophysics, 717, 226–241,
https://doi.org/10.1016/j.tecto.2017.07.026, 2017.
Skop, R. A. and Griffin, O. M.: On a theory for the vortex-excited
oscillations of flexible cylindrical structures, J. Sound Vib., 41,
263–274, https://doi.org/10.1016/S0022-460X(75)80173-8, 1975.
Stähler, S. C., Schmidt-Aursch, M. C., Hein, G., and Mars, R.: A
self-noise model for the German DEPAS OBS pool, Seismol. Res. Lett., 89,
1838–1845, https://doi.org/10.1785/0220180056, 2018.
Sumer, B. M. and Fredsøe, J.: Hydrodynamics around Cylindrical
Structures, edited by: Liu, P., Vol. 12, Advanced Series on Ocean Engineering,
World Scientific, Singapore, https://doi.org/10.1142/3316, 1999.
Sutton, G. H. and Duennebier, F. K.: Optimum design of ocean bottom
seismometers, Mar. Geophys. Res., 9, 47–65, 1987.
Sutton, G. H., Duennebier, F. K., and Iwatake, B.: Coupling of Ocean Bottom
Seismometers to Soft Bottom, Mar. Geophys. Res., 5, 35–51,
https://doi.org/10.1007/BF00310310, 1981a.
Sutton, G. H., Duennebier, F. K., Iwatake, B., Tuthill, J., Lewis, B., and
Ewing, J.: An Overview and General Results of the Lopez Island OBS
Experiment, Mar. Geophys. Res., 5, 3–34, https://doi.org/10.1007/bf00310309,
1981b.
Tasič, I. and Runovc, F.: Seismometer self-noise estimation using a single
reference instrument, J. Seismol., 16, 183–194,
https://doi.org/10.1007/s10950-011-9257-4, 2012.
Trehu, A. M.: Coupling of Ocean Bottom Seismometers to Sediment: Results of
Tests with the U.S. Geological Survey Ocean Bottom Seismometer, Bull. Seism.
Soc. Am., 75, 271–289, 1985a.
Trehu, A. M.: A Note on the Effect of Bottom Currents on an Ocean Bottom
Seismometer, Bull. Seism. Soc. Am., 75, 1195–1204, 1985b.
Trehu, A. M. and Solomon, S. C.: Coupling parameters of the MIT OBS at two
nearshore sites, Mar. Geophys. Res., 5, 69–78,
https://doi.org/10.1007/BF00310312, 1981.
Tolstoy, M., Vernon, F. L., Orcutt, J. A., and Wyatt, F. K.: Breathing of the
seafloor: Tidal correlations of seismicity at Axial volcano, Geology, 30,
503–506, https://doi.org/10.1130/0091-7613(2002)030<0503:BOTSTC>2.0.CO;2, 2002.
Tulhill, J. D., Lewis, B. T. R., and Garmany, J. D.: Stoneley waves, Lopez
island noise, and deep sea noise from 1 to 5Hz, Mar. Geophys.
Res., 5, 95–108, https://doi.org/10.1007/BF00310315, 1981
Ugalde, A., Gaite, B., Ruiz, M., Villaseñor, A., and Ranero, C. R.:
Seismicity and noise recorded by passive seismic monitoring of drilling
operations offshore the Eastern Canary Islands, Seismol. Res. Lett., 90,
1565–1576, https://doi.org/10.1785/0220180353, 2019.
Voet, G. Alford, M. H., and MacKinnon, J.: Topographic form drag on tides
and low-frequency flow: Observations of nonlinear Lee Waves over a tall
submarine ridge near Palau, J. Phys. Oceanogr., 50, 1489–1507,
https://doi.org/10.1175/JPO-D-19-0257.1, 2020.
Webb, S. C.: Broadband seismology and noise under the ocean, Rew. Geophys., 36, 105–142, https://doi.org/10.1029/97RG02287, 1998.
Webb, S. C.: The Earth's “hum” is driven by ocean waves over the
continental shelves, Nature, 445, 754–756,
https://doi.org/10.1038/nature05536, 2007.
Wessel, P., Smith, W. H. F., Scharroo, R., Luis, J. F., and Wobbe, F.:
Generic Mapping Tools: Improved version released, Eos Trans. AGU 94,
409–410, https://doi.org/10.1002/2013EO450001, 2013.
Zelikovitz, S. J. and Prothero, W. A.: The vertical response of an ocean
bottom seismometer: analysis of the Lopez Island vertical transient tests,
Mar. Geophys. Res., 5, 53–67, https://doi.org/10.1007/BF00310311, 1981.
Short summary
We show that ocean-bottom seismometers are controlled by bottom currents, but these are not always a function of the tidal forcing. Instead we suggest that the ocean bottom has a flow regime resulting from two possible contributions: the permanent low-frequency bottom current and the tidal current along the full tidal cycle, between neap and spring tides. In the short-period noise band the ocean current generates harmonic tremors that corrupt the dataset records.
We show that ocean-bottom seismometers are controlled by bottom currents, but these are not...
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