Wetland dynamics using a suite of satellite observations: A case study of application and evaluation for the Indian Subcontinent.

F. Papa , Christophe Prigent , Franck Durand (1) , W. B. Rossow

1 LEGOS - Laboratoire d'études en Géophysique et océanographie spatiales

U sing as uite of satellite observations, including passive and active microwavea long with visible and infrared observations developed to estimate wetlands on a global scale, the present study examine wetlands spatial and temporal dynamics over the Indian subcontinent, ar egion subject to an annual monsoon. Monthly wetlands extent estimateso ver a2-year (1993-1994) period and their consistencya re analyzed using independent data sets, such as rainfall rate in-situ rain-gauge observations and the Global Precipitation Climatology Project product, as well as river water levels derived from radar altimeter observations. The extent variations show agood agreement with the raingauge data, ahigh correlation with the GPCP rain data and a similar seasonal cycle with the altimeter estimates over the 2 years. This case study evaluation shows the potential of the remote sensing to give spatial-temporalc onsistent information on thev ariability of flooded areas and encourages the development of longer satellite wetlands estimates.

Domaines: Planète et Univers [physics]

F. Papa, Christophe Prigent, Franck Durand, W. B. Rossow. Wetland dynamics using a suite of satellite observations: A case study of application and evaluation for the Indian Subcontinent.. Geophysical Research Letters, 2006, 33, pp.L08401. ⟨10.1029/2006GL025767⟩. ⟨hal-00280336⟩