@InProceedings{AlvalaCoGiSoSaArGa:2004:InVaSo,
               author = "Alvala, Regina Celia dos Santos and Cohen, Julia Clarinda Paiva 
                         and Gielow, Ralf and Souza, Jose Ricardo Santos de and Sa, 
                         Leonardo Deane de Abreu and Arlino, Paulo Rogerio de Aquino and 
                         Gandu, Adilson Wagner",
          affiliation = "{CPTEC-INPE-Ccahoeira Paulista-12630-000-SP-Brasil} and 
                         Departamento de Meteorologia (Universidade Federal do 
                         Par{\'a}),Bel{\'e}m, PA - Brasil and {CPTEC-INPE-Ccahoeira 
                         Paulista-12630-000-SP-Brasil} and Departamento de Meteorologia 
                         (Universidade Federal do Par{\'a}),Bel{\'e}m, PA - Brasil and 
                         Museu Paraense Em{\'{\i}}lio Goeldi - MPEG, Bel{\'e}m, PA - 
                         Brasil and {CPTEC-INPE-Ccahoeira Paulista-12630-000-SP-Brasil} and 
                         Universidade de S{\~a}o Paulo, DCA/IAG/USP, S{\~a}o paulo , SP - 
                         Brasil",
                title = "Intradiurnal variability of soil temperature, heat flux, and soil 
                         thermal diffusivity in different ecosystems in eastern Amazonian",
            booktitle = "Anais...",
                 year = "2004",
         organization = "Conferencia Cientifica do LBA, 3.",
             abstract = "Heat and moisture exchanges between the ground surface and the 
                         atmosphere are frequently dominant driving mechanisms for 
                         mesoscale circulations. These surface processes depend on the soil 
                         and surface characteristics, thus presenting spatial variation. 
                         Over land, significant diurnal changes of temperature and moisture 
                         balance near the interface with the atmosphere also occur. So, 
                         coupled models of heat and moisture transport in the soils near 
                         its surface require information about soil thermal properties, 
                         which are used to determine temperature profiles and heat flux in 
                         the soil. In particular over the Amazon region, a vast area has 
                         been changed into pasture or agricultural land, a change that 
                         produces significant alterations in the soil-vegetation-atmosphere 
                         interactions and, consequently, in the weather and climate. In the 
                         present work, the intradiurnal variability of soil temperature, 
                         heat flux and moisture content in eastern Amazonian are analyzed. 
                         The thermal diffusivity is iteratively obtained through a 
                         numerical solution of the heat conduction equation using soil 
                         temperature series. The measurements were collected within the 
                         Mil{\^e}nio-LBA program - Subproject UFPA, during the experiment 
                         CiMela ({"}Mesoscale Circulations in Amazonian East{"}), held 
                         during the dry period of 2003 in different ecosystems of the 
                         Par{\'a} State: (i) forest (Caxiun{\~a} Reserve, Melga{\c{c}}o 
                         - 01°42'30''S; 51°31'45'' W); (ii) pasture (Soure, Maraj{\'o} 
                         Island); (iii) natural mangrove (Tracuateua Island, 
                         Bragan{\c{c}}a ); (iv) degraded mangrove (Tracuateua Island, 
                         Bragan{\c{c}}a); and (v) agricultural area (Fazenda Escola da 
                         Universidade Federal Rural da Amaz{\^o}nia, Igarap{\'e} 
                         A{\c{c}}u).",
  conference-location = "Brasilia",
      conference-year = "27-29 jul.",
           copyholder = "SID/SCD",
             language = "en",
         organisation = "LBA",
           targetfile = "LBA2004-Regina_Intradiurnal.pdf",
        urlaccessdate = "16 jun. 2024"
}