%0 Journal Article %1 Cerezo-Mota2016824 %A Cerezo-Mota, R. %A Cavazos, T. %A Arritt, R. %A Torres-Alavez, A. %A Sieck, K. %A Nikulin, G. %A Moufouma-Okia, W. %A Salinas-Prieto, J.A. %D 2016 %I John Wiley and Sons Ltd %J International Journal of Climatology %K 2016 InterannualVariability LandSeaContrast NorthAmericanMonsoon RegionalClimateModels from:erick007 %N 2 %P 824-836 %R 10.1002/joc.4385 %T CORDEX-NA: Factors inducing dry/wet years on the North American Monsoon region %U https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956834836&doi=10.1002%2fjoc.4385&partnerID=40&md5=2a79d6a5cabf265d95425e1dafe9c127 %V 36 %X The output of four regional climate models (RCMs) from the Coordinated Regional Climate Downscaling Experiment (CORDEX)-North America (NA) region was analysed for the 1990-2008 period, with particular interest on the mechanisms associated with wet and dry years over the North American Monsoon (NAM) core region. All RCMs (RCA3.5, HadGEM3-RA, REMO, and RegCM4) were forced by the ERA-Interim reanalysis. Model precipitation was compared against several observational gridded data sets at different time scales. Most RCMs capture well the annual cycle of precipitation and outperform ERA-Interim, which is drier than the observations. RCMs underestimate (overestimate) the precipitation over the coastal plains (mountains) and have some problems to reproduce the interannual variability of the monsoon. To further investigate this, two extreme summers that showed the largest consistency among observations and RCMs were chosen: one wet (1990) and one dry (2005). The impact of the passage of tropical cyclones, the size of the Western Hemisphere Warm Pool (WHWP), the Intertropical Convergence Zone (ITCZ) position, and the initial intensity of the land-sea thermal contrast (LSTC) were analysed. During the wet year, the LSTC was stronger than the 2005 dry monsoon season and there were a larger number of hurricanes near the Gulf of California, the WHWP was more extended, and the ITCZ was located in a more northerly position than in 2005. All these processes contributed to a wetter NAM season. During the dry year, the LSTC was weaker, with a later onset, probably due to a previous very wet winter. The inverse precipitation relationship between winter and summer in the monsoon region was well captured by most of the RCMs. RegCM4 showed the largest biases and HadGEM3-RA the smallest ones. © 2016 Royal Meteorological Society.

@article{Cerezo-Mota2016824, abbrev_source_title = {Int. J. Climatol.}, abstract = {The output of four regional climate models (RCMs) from the Coordinated Regional Climate Downscaling Experiment (CORDEX)-North America (NA) region was analysed for the 1990-2008 period, with particular interest on the mechanisms associated with wet and dry years over the North American Monsoon (NAM) core region. All RCMs (RCA3.5, HadGEM3-RA, REMO, and RegCM4) were forced by the ERA-Interim reanalysis. Model precipitation was compared against several observational gridded data sets at different time scales. Most RCMs capture well the annual cycle of precipitation and outperform ERA-Interim, which is drier than the observations. RCMs underestimate (overestimate) the precipitation over the coastal plains (mountains) and have some problems to reproduce the interannual variability of the monsoon. To further investigate this, two extreme summers that showed the largest consistency among observations and RCMs were chosen: one wet (1990) and one dry (2005). The impact of the passage of tropical cyclones, the size of the Western Hemisphere Warm Pool (WHWP), the Intertropical Convergence Zone (ITCZ) position, and the initial intensity of the land-sea thermal contrast (LSTC) were analysed. During the wet year, the LSTC was stronger than the 2005 dry monsoon season and there were a larger number of hurricanes near the Gulf of California, the WHWP was more extended, and the ITCZ was located in a more northerly position than in 2005. All these processes contributed to a wetter NAM season. During the dry year, the LSTC was weaker, with a later onset, probably due to a previous very wet winter. The inverse precipitation relationship between winter and summer in the monsoon region was well captured by most of the RCMs. RegCM4 showed the largest biases and HadGEM3-RA the smallest ones. © 2016 Royal Meteorological Society.}, added-at = {2021-06-02T01:36:31.000+0200}, affiliation = {Laboratorio de Ingeniería y Procesos Costeros (LIPC), Universidad Autónoma de México (UNAM), Sisal, Mexico; Consejo Nacional de Ciencia y Tecnoglogía (CONACYT), Mexico; Department of Physical Oceanography, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Ensenada, Mexico; Department of Agronomy, Iowa State University, Ames, IA, United States; Department of Atmospheric Sciences, University of Nebraska-LincolnNE, United States; The Atmosphere in the Earth System, Max Planck Institute for Meteorology, Hamburg, Germany; Rossby Centre, Swedish Meteorological and Hydrological Institute (SMHI), Norrkoping, Sweden; Met Office, Exeter, United Kingdom; Mexican Institute of Water Technology (IMTA), Jiutepec, Mexico}, author = {Cerezo-Mota, R. and Cavazos, T. and Arritt, R. and Torres-Alavez, A. and Sieck, K. and Nikulin, G. and Moufouma-Okia, W. and Salinas-Prieto, J.A.}, author_keywords = {Interannual variability; Land-sea contrast; North American Monsoon; Regional climate models}, biburl = {https://www.bibsonomy.org/bibtex/248de35a6e9327e10308fce5e6ce884f4/publ_del_lipc}, coden = {IJCLE}, correspondence_address1 = {Cerezo-Mota, R.; Laboratorio de Ingeniería y Procesos Costeros, Puerto de Abrigo S/N, Mexico; email: rcerezom@iingen.unam.mx}, document_type = {Article}, doi = {10.1002/joc.4385}, interhash = {1acc3fc2e735359758f12aaf5e2ee0ef}, intrahash = {48de35a6e9327e10308fce5e6ce884f4}, issn = {08998418}, journal = {International Journal of Climatology}, keywords = {2016 InterannualVariability LandSeaContrast NorthAmericanMonsoon RegionalClimateModels from:erick007}, language = {English}, number = 2, pages = {824-836}, publisher = {John Wiley and Sons Ltd}, source = {Scopus}, timestamp = {2021-06-23T06:24:56.000+0200}, title = {CORDEX-NA: Factors inducing dry/wet years on the North American Monsoon region}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956834836&doi=10.1002%2fjoc.4385&partnerID=40&md5=2a79d6a5cabf265d95425e1dafe9c127}, volume = 36, year = 2016 }