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[B-2.3 Estimation of methane emissions from the West Siberian Lowland by use of remote sensing and modeling techniques]

[Contact Person]

TAMURA Masayuki
Information processing and Analysis section
Social and Environmental Systems Division
National Institute for Environmental Studies, Japan Environment Agency
16-2 Onogawa, Tsukuba, Ibaraki, Japan, 305-0053
Tel: +81-298-50.2479, Fax: +81-298-50-2572,
E-mail: m-tamura@nies.go.jp

[Total Budget for FY1997-FY1999]

37,174,000 Yen (FY1999: 12,044,000 Yen)

[Abstract]

　A method is presented for differentiating wetland areas in northern high-latitude zones using Normalized Difference Vegetation Index (NDVI) and land surface temperature (T_s) calculated from midday NOAA/AVHRR imagery. Wetland areas have been distinguished from other land-cover types using signatures on a scattergram of NDVI vs. T_s. The method was applied for differentiating wetland areas in the basin of the Ob River in the west Siberian lowland. The result has been verified with ground-truth data and land-cover classification results obtained rom high-resolution satellite images.

[Key Words]

NOAA/AVHRR, vegetation index, surface temperature, SPOT/HRV, wetland