Articles | Volume 20, issue 10
Nat. Hazards Earth Syst. Sci., 20, 2753–2776, 2020

Special issue: Hydrological cycle in the Mediterranean (ACP/AMT/GMD/HESS/NHESS/OS...

Nat. Hazards Earth Syst. Sci., 20, 2753–2776, 2020

Research article 21 Oct 2020

Research article | 21 Oct 2020

Assessing atmospheric moisture effects on heavy precipitation during HyMeX IOP16 using GPS nudging and dynamical downscaling

Alberto Caldas-Alvarez and Samiro Khodayar

Related authors

Overview towards improved understanding of the mechanisms leading to heavy precipitation in the Western Mediterranean: lessons learned from HyMeX
Samira Khodayar, Silvio Davolio, Paolo Di Girolamo, Cindy Lebeaupin Brossier, Emmanouil Flaounas, Nadia Fourrie, Keun-Ok Lee, Didier Ricard, Benoit Vie, Francois Bouttier, Alberto Caldas-Alvarez, and Veronique Ducrocq
Atmos. Chem. Phys. Discuss.,,, 2021
Preprint under review for ACP
Short summary
The impact of GPS and high-resolution radiosonde nudging on the simulation of heavy precipitation during HyMeX IOP6
Alberto Caldas-Alvarez, Samiro Khodayar, and Peter Knippertz
Weather Clim. Dynam. Discuss.,,, 2021
Revised manuscript accepted for WCD
GPS – Zenith Total Delay assimilation in different resolution simulations of a heavy precipitation event over southern France
Alberto Caldas-Álvarez, Samiro Khodayar, and Olivier Bock
Adv. Sci. Res., 14, 157–162,,, 2017
Short summary

Related subject area

Atmospheric, Meteorological and Climatological Hazards
Assessing internal changes in the future structure of dry–hot compound events: the case of the Pyrenees
Marc Lemus-Canovas and Joan Albert Lopez-Bustins
Nat. Hazards Earth Syst. Sci., 21, 1721–1738,,, 2021
Short summary
Changes in drought features at the European level over the last 120 years
Monica Ionita and Viorica Nagavciuc
Nat. Hazards Earth Syst. Sci., 21, 1685–1701,,, 2021
Short summary
Assimilation of Himawari-8 imager radiance data with the WRF-3DVAR system for the prediction of Typhoon Soudelor
Feifei Shen, Aiqing Shu, Hong Li, Dongmei Xu, and Jinzhong Min
Nat. Hazards Earth Syst. Sci., 21, 1569–1582,,, 2021
Short summary
Atmospheric conditions leading to an exceptional fatal flash flood in the Negev Desert, Israel
Uri Dayan, Itamar M. Lensky, Baruch Ziv, and Pavel Khain
Nat. Hazards Earth Syst. Sci., 21, 1583–1597,,, 2021
Short summary
Review article: Towards resilient vital infrastructure systems – challenges, opportunities, and future research agenda
Seyedabdolhossein Mehvar, Kathelijne Wijnberg, Bas Borsje, Norman Kerle, Jan Maarten Schraagen, Joanne Vinke-de Kruijf, Karst Geurs, Andreas Hartmann, Rick Hogeboom, and Suzanne Hulscher
Nat. Hazards Earth Syst. Sci., 21, 1383–1407,,, 2021
Short summary

Cited articles

Ahrens, C. D. and Samson, P. J.: Extreme Weather and Climate, Cengage Learning, United States of America, ISBN 0495118575, 2010. 
Andersson, T., Andersson, M., Jacobsson, C., and Nilsson, S.: Thermodynamic indices for forecasting thunderstorms in southern Sweden, Meteorol. Mag., 116, 141–146, 1989. 
Bevis, M., Businger, S., Chiswell, S., Herring, T. A., Anthes, R. A., Rocken, C., and Ware, R. H.: GPS Meteorology: Mapping Zenith Wet Delays onto Precipitable Water, J. Appl. Meteorol., 33, 379–386,<0379:gmmzwd>;2, 1994. 
Bitew, M. M. and Gebremichael, M.: Evaluation of satellite rainfall products through hydrologic simulation in a fully distributed hydrologic model, Water Resour. Res., 47, W06526,, 2011. 
Bock, O., Bosser, P., Pacione, R., Nuret, M., Fourrié, N., and Parracho, A.: A high-quality reprocessed ground-based GPS dataset for atmospheric process studies, radiosonde and model evaluation, and reanalysis of HyMeX Special Observing Period, Q. J. Roy. Meteor. Soc., 142, 56–71,, 2016. 
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.
Final-revised paper