Articles | Volume 20, issue 10
https://doi.org/10.5194/nhess-20-2753-2020
© Author(s) 2020. 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-20-2753-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Assessing atmospheric moisture effects on heavy precipitation during HyMeX IOP16 using GPS nudging and dynamical downscaling
Alberto Caldas-Alvarez
CORRESPONDING AUTHOR
Institute of Meteorology and Climate Research (IMK-TRO), Karlsruhe Institute of Technology, P.O. Box 3640,76021 Karlsruhe, Germany
Samiro Khodayar
Institute of Meteorology and Climate Research (IMK-TRO), Karlsruhe Institute of Technology, P.O. Box 3640,76021 Karlsruhe, Germany
Mediterranean Centre for Environmental Studies (CEAM), Valencia, 46980, Spain
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Cited
17 citations as recorded by crossref.
- The impact of global navigation satellite system (GNSS) zenith total delay data assimilation on the short-term precipitable water vapor and precipitation forecast over Italy using the Weather Research and Forecasting (WRF) model R. Torcasio et al. https://doi.org/10.5194/nhess-23-3319-2023
- Seasonal heavy precipitation sensitivity to moisture corrections in the western Mediterranean across resolutions S. Khodayar & A. Caldas-Alvarez https://doi.org/10.1016/j.atmosres.2022.106429
- Overview towards improved understanding of the mechanisms leading to heavy precipitation in the western Mediterranean: lessons learned from HyMeX S. Khodayar et al. https://doi.org/10.5194/acp-21-17051-2021
- Assimilation of global navigation satellite system (GNSS) zenith delays and tropospheric gradients: a sensitivity study utilizing sparse and dense station networks R. Thundathil et al. https://doi.org/10.5194/amt-18-4907-2025
- Impact on Data Assimilation of Extended Coverage of GNSS Zenith Total Delay Network in Southern Part of the MetCoOp Domain M. Eshagh et al. https://doi.org/10.3390/app16178699
- Assimilation of GNSS tropospheric gradients into the Weather Research and Forecasting (WRF) model version 4.4.1 R. Thundathil et al. https://doi.org/10.5194/gmd-17-3599-2024
- Estimation of High Temporal and Spatial Resolution GNSS ZWD in Rainfall Regions and Analysis of Its Coupling Mechanism With Rainfall Events P. Wei et al. https://doi.org/10.1109/TGRS.2025.3606871
- Improving S2S Precipitation Forecast over China via a Deep Learning Model with Multi-Sphere Causality-Linked Predictors B. Mu et al. https://doi.org/10.1007/s13351-026-5109-6
- The Retrieval of Drop Size Distribution Parameters Using a Dual-Polarimetric Radar G. Lee et al. https://doi.org/10.3390/rs15041063
- Summer evapotranspiration-cloud feedbacks in land-atmosphere interactions over Europe Y. Zhang et al. https://doi.org/10.1007/s00382-024-07475-w
- Forecasting convective precipitation over northern Italy: A comparison of lightning and GNSS-ZTD data assimilation S. Federico et al. https://doi.org/10.1016/j.atmosres.2025.108687
- Dynamical forcings in heavy precipitation events over Italy: lessons from the HyMeX SOP1 campaign M. Miglietta & S. Davolio https://doi.org/10.5194/hess-26-627-2022
- The impact of GPS and high-resolution radiosonde nudging on the simulation of heavy precipitation during HyMeX IOP6 A. Caldas-Alvarez et al. https://doi.org/10.5194/wcd-2-561-2021
- Evaluation of 3D‐Var and 4D‐Var data assimilation on simulation of heavy rainfall events over the Indian region S. Patel et al. https://doi.org/10.1002/met.70037
- Unraveling atmospheric moisture transport linkages to extreme precipitation events and associated synoptic features over India A. Singh Raghuvanshi & A. Agarwal https://doi.org/10.1016/j.jhydrol.2023.130290
- Convection-parameterized and convection-permitting modelling of heavy precipitation in decadal simulations of the greater Alpine region with COSMO-CLM A. Caldas-Alvarez et al. https://doi.org/10.5194/wcd-4-543-2023
- Extreme rainfall events in the Rio de Janeiro city (Brazil): description and a numerical sensitivity case study F. da Silva et al. https://doi.org/10.1007/s00703-022-00909-2
17 citations as recorded by crossref.
- The impact of global navigation satellite system (GNSS) zenith total delay data assimilation on the short-term precipitable water vapor and precipitation forecast over Italy using the Weather Research and Forecasting (WRF) model R. Torcasio et al. https://doi.org/10.5194/nhess-23-3319-2023
- Seasonal heavy precipitation sensitivity to moisture corrections in the western Mediterranean across resolutions S. Khodayar & A. Caldas-Alvarez https://doi.org/10.1016/j.atmosres.2022.106429
- Overview towards improved understanding of the mechanisms leading to heavy precipitation in the western Mediterranean: lessons learned from HyMeX S. Khodayar et al. https://doi.org/10.5194/acp-21-17051-2021
- Assimilation of global navigation satellite system (GNSS) zenith delays and tropospheric gradients: a sensitivity study utilizing sparse and dense station networks R. Thundathil et al. https://doi.org/10.5194/amt-18-4907-2025
- Impact on Data Assimilation of Extended Coverage of GNSS Zenith Total Delay Network in Southern Part of the MetCoOp Domain M. Eshagh et al. https://doi.org/10.3390/app16178699
- Assimilation of GNSS tropospheric gradients into the Weather Research and Forecasting (WRF) model version 4.4.1 R. Thundathil et al. https://doi.org/10.5194/gmd-17-3599-2024
- Estimation of High Temporal and Spatial Resolution GNSS ZWD in Rainfall Regions and Analysis of Its Coupling Mechanism With Rainfall Events P. Wei et al. https://doi.org/10.1109/TGRS.2025.3606871
- Improving S2S Precipitation Forecast over China via a Deep Learning Model with Multi-Sphere Causality-Linked Predictors B. Mu et al. https://doi.org/10.1007/s13351-026-5109-6
- The Retrieval of Drop Size Distribution Parameters Using a Dual-Polarimetric Radar G. Lee et al. https://doi.org/10.3390/rs15041063
- Summer evapotranspiration-cloud feedbacks in land-atmosphere interactions over Europe Y. Zhang et al. https://doi.org/10.1007/s00382-024-07475-w
- Forecasting convective precipitation over northern Italy: A comparison of lightning and GNSS-ZTD data assimilation S. Federico et al. https://doi.org/10.1016/j.atmosres.2025.108687
- Dynamical forcings in heavy precipitation events over Italy: lessons from the HyMeX SOP1 campaign M. Miglietta & S. Davolio https://doi.org/10.5194/hess-26-627-2022
- The impact of GPS and high-resolution radiosonde nudging on the simulation of heavy precipitation during HyMeX IOP6 A. Caldas-Alvarez et al. https://doi.org/10.5194/wcd-2-561-2021
- Evaluation of 3D‐Var and 4D‐Var data assimilation on simulation of heavy rainfall events over the Indian region S. Patel et al. https://doi.org/10.1002/met.70037
- Unraveling atmospheric moisture transport linkages to extreme precipitation events and associated synoptic features over India A. Singh Raghuvanshi & A. Agarwal https://doi.org/10.1016/j.jhydrol.2023.130290
- Convection-parameterized and convection-permitting modelling of heavy precipitation in decadal simulations of the greater Alpine region with COSMO-CLM A. Caldas-Alvarez et al. https://doi.org/10.5194/wcd-4-543-2023
- Extreme rainfall events in the Rio de Janeiro city (Brazil): description and a numerical sensitivity case study F. da Silva et al. https://doi.org/10.1007/s00703-022-00909-2
Saved (final revised paper)
Latest update: 14 Sep 2026
Short summary
Heavy precipitation causes serious losses and several casualties in the western Mediterranean every year. To predict this phenomenon better, we aim at understanding how the models represent the interaction between atmospheric moisture and precipitation by nudging a 10 min, state-of-the-art GPS data set. We found, for the selected case in autumn 2012, that the improvement in the modelling of precipitation stems from relevant variations of atmospheric instability and humidity above 1.5 km.
Heavy precipitation causes serious losses and several casualties in the western Mediterranean...
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