Global Inundation Extent from Multi-Satellites Downscaled (GIEMS-D)

GIEMS-D is a high-resolution global inundation map at a pixel size of 3 arc-seconds (approximately 90 meter at the equator). The map was generated by downscaling inundated area estimates from the Global Inundation Extent from Multi-Satellites (GIEMS) . A first version of the downscaling of GIEMS can be found in (GIEMS-D15) .

The derived high-spatial-resolution dataset will be used in the framework of the Surface Water Ocean Topography (SWOT) mission to develop and test the instrument simulator as well as to select the calibration validation sites (with high space–time inundation variability). In addition, once SWOT observations are available, the downscaled methodology will be calibrated on them in order to downscale the GIEMS datasets and to extend the SWOT benefits back in time to 1993.

The related data set are available upon request to: filipe.aires@estellus.fr.

References:

(1) Prigent, C., Matthews, E., Aires, F., & Rossow, W. B. (2001). Remote sensing of global wetland dynamics with multiple satellite data sets. Geophysical Research Letters, 28(24), 4631-4634.

(2) Prigent, C., Papa, F., Aires, F., Rossow, W. B. & Matthews, E. (2007). Global inundation dynamics inferred from multiple satellite observations, 1993-2000. Journal of Geophysical Research, 112(D12107), 1-1

(3) Papa, F., Prigent, C., Aires, F., Jimenez, C., Rossow, W. B., & Matthews, E. (2010). Interannual variability of surface water extent at the global scale, 1993–2004. Journal of Geophysical Research, 115(D12111), 1-17.

(4) Lehner, B., & Döll, P. (2004). Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology, vol. 296(1-4), 1-22.

(5) Aires, F., F. Papa and C. Prigent, A long-term, high-resolution wetland dataset over the Amazon basin, downscaled from a multi-wavelength retrieval using SAR, J. of Hydrometeorology, 14, 594-6007, 2013.

(6) Aires, F., F. Papa, C. Prigent, J.-F. Cretaux and M. Berge-Nguyen, Characterization and downscaling of the inundation extent over the Inner Niger delta using a multi-wavelength retrievals and Modis data, J. of Hydrometeoroloy, 27, 1958-1979, doi: http://dx/doi.org/10.1175/JCLI-D-13-00161.1, 2014.

(7) Lehner, B., Verdin, K., & Jarvis, A., 2008. New Global Hydrography Derived From Spaceborne Elevation Data. Eos, 89(10), 93-94.

(8) Bartholomé, E., & Belward, A. S. (2005), GLC2000: A new approach to global land cover mapping from earth observation data. International Journal of Remote Sensing, 26(9), 1959-1977.