A change of Aral Sea´s water area by satellite data

Author

Nakayama, Yasunori ; Tanaka, Sotaro ; Endo, Kunihiko ; Suga, Yuzo

Author_Institution

Remote Sensing Technol. Center of Japan, Tokyo, Japan

fYear

1993

fDate

18-21 Aug 1993

Firstpage

194

Abstract

Deals with a monitoring of the change of Aral Sea´s water area and its vicinity using multi-temporal satellite data and the other auxiliary sources. A mosaicked LANDSAT MSS and seven NOAA AVHRR images which had been registered to a Lambert´s conformal conic coordinates were used. Normalized difference vegetation index (NDVI) images were obtained using two band data of the visible and near-infrared. The change of Aral Sea´s water area was measured by a thresholding method. The Aral Sea in the beginning of 1990s showed a decrease in area to under 55% of that in comparison with the statistic sources and maps. It was presumed that the main reason of water area decrease was caused by water consumption for the desert irrigation

Keywords

hydrology; lakes; remote sensing; water pollution; AD 1960 to 1993; Aral Sea; Kazakhstan Uzbekistan; USSR; change; hydrology; infrared; optical remote sensing image; salt lake area change; vegetation; visible; water area; water balance; water pollution; Data analysis; Image analysis; Lakes; Los Angeles Council; Mouth; Ocean temperature; Remote sensing; Rivers; Satellite broadcasting; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International

Conference_Location

Tokyo

Print_ISBN

0-7803-1240-6

Type

conf

DOI

10.1109/IGARSS.1993.322521

Filename

322521