@Article{GonçalvesSCXHTMR:2006:ImDiIn,
               author = "Gon{\c{c}}alves, Luiz Gon{\c{c}}alves de and Shuttleworth, 
                         William James and Chou, Sin Chan and Xue, Yongkang and Houser, 
                         Paul R. and Toll, David L. and Marengo, Jos{\'e} Ant{\^o}nio and 
                         Rodell, Matthew",
          affiliation = "Department of Hydrology and Water Resources, University of 
                         Arizona, Tucson, Arizona, USA and Department of Hydrology and 
                         Water Resources, University of Arizona, Tucson, Arizona, USA and 
                         Instituto Nacional de Pesquisas Espaciais (INPE), Centro de 
                         Previs{\~a}o de Tempo e Estudos Clim{\'a}ticos (CPTEC) and 
                         Department of Geography, University of California, Los Angeles and 
                         Center for Research on Environmental and Water, George Mason, 
                         University Calverton, Maryland, USA and Hydrological Sciences 
                         Branch, Maryland, USA and Instituto Nacional de Pesquisas 
                         Espaciais (INPE), Centro de Previs{\~a}o de Tempo e Estudos 
                         Clim{\'a}ticos (CPTEC) and Hydrological Sciences Branch, 
                         Maryland, USA",
                title = "Impact of different initial soil moisture fields on Eta model 
                         weather forecasts for South America",
              journal = "Journal of Geophysical Research",
                 year = "2006",
               volume = "111",
               number = "D17102",
                pages = "01--14",
                month = "Sept.",
             keywords = "simplified simple biosphere, SSiB, CPTEC, Centro de Previs{\~a}o 
                         de Estudos Clim{\'a}ticos, South American Land Data Assimilation 
                         System, SALDAS, NCEP, South Atlantic Convergence Zone.",
             abstract = "Two 7-day weather simulations were made for South America in July 
                         2003 and January 2004 (in the Southern Hemisphere summer and 
                         winter) to investigate the impacts of using different soil 
                         moisture initialization fields in the Eta model coupled to the 
                         Simplified Simple Biosphere (SSiB) land surface model. The 
                         alternative initial soil moisture fields were (1) the soil 
                         moisture climatology used operationally by the Centro de 
                         Previs{\~a}o de Tempo e Estudos Clim{\'a}ticos in Brazil and (2) 
                         the soil moisture fields generated by a South American Land Data 
                         Assimilation System (SALDAS) based on SSib. When the SALDAS soil 
                         moisture fields were used, there was as increase in the model 
                         performance relative to climatology in the equitable threat score 
                         calculated with respect to observed surface precipitation fields 
                         and a decrease (up to 53%) in the root-mean-square error relative 
                         to the NCEP analysis of the modeled geopotencial height at 500 hPa 
                         and mean sea pessure. However, there was small change in the model 
                         skill in positioning the primary South American weather systems 
                         because of a change in the upper troposphere circulation caused by 
                         SALDAS initialization, most noticeably in the South Atlantic 
                         Convergence Zone.",
           copyholder = "SID/SCD",
                 issn = "0148-0227 and 2156-2202",
             language = "en",
           targetfile = "Gon{\c{c}}alves.Impact.pdf",
        urlaccessdate = "16 jun. 2024"
}