Articles | Volume 4, issue 4
https://doi.org/10.5194/wcd-4-963-2023
https://doi.org/10.5194/wcd-4-963-2023
Research article
 | 
14 Nov 2023
Research article |  | 14 Nov 2023

The monthly evolution of precipitation and warm conveyor belts during the central southwest Asia wet season

Melissa Leah Breeden, Andrew Hoell, John Robert Albers, and Kimberly Slinski

Data sets

Assessing objective techniques for gauge-based analyses of global daily precipitation (https://psl.noaa.gov/data/gridded/data.cpc.globalprecip.html) M. Chen, W. Shi, P. Xie, V. B. S. Silva, V. E. Kousky, R. W. Higgins, and J. E. Janowiak https://doi.org/10.1029/2007JD009132

JRA-55: Japanese 55-year Reanalysis, Daily 3-Hourly and 6-Hourly Data Japan Meteorological Agency https://doi.org/10.5065/D6HH6H41

The ERA5 global reanalysis (https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels?tab=overview) Hans Hersbach, Bill Bell, Paul Berrisford, Shoji Hirahara, András Horányi, Joaquín Muñoz-Sabater, Julien Nicolas, Carole Peubey, Raluca Radu, Dinand Schepers, Adrian Simmons, Cornel Soci, Saleh Abdalla, Xavier Abellan, Gianpaolo Balsamo, Peter Bechtold, Gionata Biavati, Jean Bidlot, Massimo Bonavita, Giovanna De Chiara, Per Dahlgren, Dick Dee, Michail Diamantakis, Rossana Dragani, Johannes Flemming, Richard Forbes, Manuel Fuentes, Alan Geer, Leo Haimberger, Sean Healy, Robin J. Hogan, Elías Hólm, Marta Janisková, Sarah Keeley, Patrick Laloyaux, Philippe Lopez, Cristina Lupu, Gabor Radnoti, Patricia de Rosnay, Iryna Rozum, Freja Vamborg, Sebastien Villaume, and Jean-Noël Thépaut https://doi.org/10.1002/qj.3803

Integrated Multi-satellite Retrievals for the Global Precipitation Measurement (GPM) Mission (IMERG) (https://gpm.nasa.gov/data/directory) G. J. Huffman, D. T. Bolvin, D. Braithwaite, K.-L. Hsu, R. J. Joyce, C. Kidd, E. J. Nelkin, S. Sorooshian, E. F. Stocker, J. Tan, D. B. Wolff, and P. Xie https://doi.org/10.1007/978-3-030-24568-9_19

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Short summary
We compare the month-to-month evolution of daily precipitation over central southwest Asia (CSWA), a data-sparse, food-insecure area prone to drought and flooding. The seasonality of CSWA precipitation aligns with the seasonality of warm conveyor belts (WCBs), the warm, rapidly ascending airstreams associated with extratropical storms, most common from February–April. El Niño conditions are related to more WCBs and precipitation and La Niña conditions the opposite, except in January.