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Ana M. B. Nunes and John O. Roads

synoptic observations Daily values of precipitation (millimeters) and maximum and minimum temperatures (degrees Celsius) were used as validation data. They were obtained from the Centro de Previsão do Tempo e Estudos Climáticos (CPTEC), São Paulo, Brazil, from surface synoptic observation (SYNOP) reports transmitted internationally through the Global Telecommunication System (GTS). 2.3.3. Precipitation datasets 2.3.3.1. Special Sensor Microwave Imager Special Sensor Microwave Imager (SSM/I) radiometer

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Michael Keller, Ruth Varner, Jadson D. Dias, Hudson Silva, Patrick Crill, Raimundo Cosme de Oliveira Jr., and Gregory P. Asner

–atmosphere fluxes of CH 4 , CO 2 , N 2 O, and NO from Ultisol sites logged in September 2000 and measured from February 2001 through January 2002 are displayed in Table 4 . Similar to observations made during 2000, the most salient result is the large increase of CH 4 emission from log decks (annual average emission of 98 mg CH 4 m −2 day −1 ) compared to other damage strata (0.0 to 2.4 mg CH 4 m −2 day −1 ). Analysis of variance of log-transformed CH 4 fluxes showed a significant effect of stratum

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