@Article{CurtarelliAlcāRennStec:2013:EfCoFr,
               author = "Curtarelli, Marcelo Pedroso and Alc{\^a}ntara, Enner and 
                         Renn{\'o}, Camilo and Stech, Jos{\'e} Luiz",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and Department 
                         of Cartography, S{\~a}o Paulo State University, Presidente 
                         Prudente, SP, Brazil and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Effects of cold fronts on MODIS-derived sensible and latent heat 
                         fluxes in Itumbiara reservoir (Central Brazil)",
              journal = "Advances in Space Research",
                 year = "2013",
               volume = "52",
               number = "9",
                pages = "1668--1677",
                month = "Nov.",
             keywords = "cold front, hydroelectric reservoirs, MODIS, sensible and latent 
                         heat fluxes, sensible heat flux, tropical reservoirs, unstable 
                         conditions, water surface temperature, atmospheric temperature, 
                         heat flux, heat losses, radiometers, water content, reservoirs 
                         (water).",
             abstract = "In this work we investigate the cold front passage effects on 
                         sensible and latent heat flux in a tropical hydroelectric 
                         reservoir. The study area, Itumbiara reservoir (Goi{\'a}s 
                         State/Brazil) at the beginning of the austral winter, is 
                         characterized by the presence of a weak thermal stratification and 
                         the passage of several cold fronts from higher latitudes of South 
                         America. Sensible and latent heat fluxes were estimated 
                         considering the atmospheric boundary layer stability. In situ and 
                         MODIS water surface temperature data were used to adjust the 
                         coefficients for momentum and heat exchanges between water and 
                         atmosphere and spatialize the sensible and latent heat fluxes. The 
                         results showed that during a cold front event the sensible heat 
                         flux can be up to five times greater than the flux observed 
                         before. The latent heat flux tends to decrease during the cold 
                         front but increase again after the passage. The highest values of 
                         heat loss were observed at littoral zone and some Reservoir's 
                         embayment. The heat loss intensification can be separated in two 
                         moments: first, during the cold front passage, when the wind speed 
                         increases and the air temperature decreases; second, after the 
                         cold front passage, with air humidity decreasing. This can be 
                         considered a key process to understanding the heat loss in the 
                         Itumbiara reservoir.",
                  doi = "10.1016/j.asr.2013.07.037",
                  url = "http://dx.doi.org/10.1016/j.asr.2013.07.037",
                 issn = "0273-1177",
                label = "scopus 2013-11",
             language = "en",
           targetfile = "1-s2.0-S0273117713004663-main.pdf",
        urlaccessdate = "03 maio 2024"
}