01841naa a2200253 a 450000100080000000500110000800800410001910000180006024500660007826000090014430000150015352010930016865000140126165000130127565000190128865000150130765000160132265000250133865300150136370000200137870000270139870000180142577301440144317920912012-02-10       1995    bl uuuu     u00u1 u    #d1 aSIPPEL, S. J.  aPassive microwave remote sensing of flooding in the Pantanal.  c1995  ap.105-107.  aThe Pantanal is characterized by seasonal inundation of was floodplains. Knowledge of the areal extent and seasonality of the flooding is required to understand the hydrology, biogeochemistry and ecology of the region. This information is also necessary for management decisions, and to identify the potential impacts of proposed development projects such as the Parana-Paraguay Waterway (Hidrovia). In contrast to optical systems, passive microwave remote sensing from satellites can detect inundation when clouds and vegetation are present. The polarized brightness temperatures observed by satellite at 37 GHz provide a sensitive indicator of the presence of surface water (Choudhury, 1991). Passive microwave satellite observtions are available from 1979 to the present, at intervals of weekly or better. These observations have been made by the Scanning Multichannel Microwave Radiometer (SMMR) operated on board the nimbus-7 satellite (1979-1987), and by the Special Sensor Microwave/Imager (SSM/I) instruments as part of the Defense Meteorological Satellite Program (1987-present).  ahydrology  aPantanal  aremote sensing  aHidrologia  aInundação  aSensoriamento Remoto  aInundation1 aHAMILTON, S. K.1 aSILVA, J. dos S. V. da1 aMELACK, J. M.  tIn: ENCONTRO SOBRE SENSORIAMENTO REMOTO APLICADO A ESTUDOS NO PANTANAL, 1995, Corumba. Livro de resumos... Sao Jose dos Campos: INPE, 1995.