@Article{BastableShuDalFisNob:1993:ObClAl,
               author = "Bastable, H. G. and Shuttleworth, W. J. and Dallarosa, R. L. G. 
                         and Fisch, Gilberto and Nobre, Carlos Afonso",
          affiliation = "Institute of Hvdrolog,-, Wallingford, Oxon OX10 8BB, UK and 
                         Institute of Hvdrolog,-, Wallingford, Oxon OX10 8BB, UK and 
                         Instituo Nationul de Pesquisas da Amaz{\^o}n{\`{\i}}a, 690t I 
                         Manaus, AM, Braz{\`{\i}}l and Centro T{\'e}cnico Aeroespacial, 
                         12225 S{\~a}o Jos{\"e} dos Campos, Sp, Brazil and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE/CPTEC)}",
                title = "Observations of climate, albedo, and surface radiation over 
                         cleared undisturbed Amazonian forest",
              journal = "International Journal of Climatology",
                 year = "1993",
               volume = "13",
               number = "7",
                pages = "783--796",
                month = "Nov.",
             keywords = "deforestation, vegetation.",
             abstract = "Measurements from the first comparative study of climate over 
                         Amazonian tropical forest and an embedded deforested clearing are 
                         presented. Observations comprise a continuous 60-day run of data 
                         from mid-October to mid-December 1990, covering the end of the dry 
                         season and the beginning of the wet season. Mean hourly 
                         observations are calculated for the whole period; and for two 
                         10-day periods, one in the dry season and one at the start of the 
                         wet season. Much greater variation in weather variables was 
                         observed at the clearing compared with over the forest. While the 
                         mean values of temperature and specific humidity deficit differed 
                         by less than 1-degrees-C and 1 g kg-1 respectively, their daily 
                         ranges at the clearing were twice those at the forest. Mean daily 
                         albedo of the forest was 13-1 per cent, agreeing well with other 
                         tropical forest measurements, and of the clearing was 16.3 per 
                         cent, somewhat lower than the values currently being used in GCMs. 
                         The surface energy balance was investigated and mean available 
                         energy calculated for each site. The significant difference in the 
                         daily pattern of net radiation between the sites was found to be 
                         at least as much due to differences in the longwave radiation 
                         balance as to differences in albedo. The diurnal pattern of net 
                         radiation therefore changed between dry and wet periods as the 
                         higher plant water stress experienced by clearing vegetation 
                         altered the daily temperature cycle.",
           copyholder = "SID/SCD",
                 issn = "0899-8418",
             language = "en",
           targetfile = "int. journ. clim. 783-796-1.pdf",
        urlaccessdate = "28 abr. 2024"
}