Intraannual and interannual changes in the surface area of a closed lake complex in southwestern Siberia using NOAA images

Shuichi Shikano, Koichi Kawano, Jun Ichi Kudoh, Alexander K. Yurlov, Eisuke Kikuchi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The Lake Chany complex, located in southwestern Siberia, consists of large shallow lakes with an average depth of about 2.2m. The area of the lake fluctuates with the water level, which is closely related to the amount of inflow and evaporation, as the lake complex is endorheic. Using National Oceanic and Atmospheric Administration (NOAA) satellite images of the ice-free periods from 1999 to 2004, we evaluated the seasonal changes in the lake area and surrounding vegetation of the Lake Chany complex. The maximum lake area was observed in early May and decreased until late July. The lake area in August was about 60% of the maximum. Subsequently, the area tended to increase until early October. Compared to ground-truth data, the areas undergoing seasonal fluctuations in the NOAA images corresponded to vast stands of vegetation (Phragmites australis) that were several kilometers wide. These areas seem to be influenced by the inflow of snow-melt water and reed growth. Although interannual differences in the seasonal change in lake area were not great for the whole lake complex, the isolated Yudinskii Pool showed large interannual differences during summer and autumn, suggesting that monitoring this area using NOAA images will be useful for estimating the interannual fluctuations in the southwestern Siberian environment.

Original languageEnglish
Pages (from-to)123-128
Number of pages6
JournalLimnology
Volume7
Issue number2
DOIs
Publication statusPublished - 2006 Aug 1

Keywords

  • Lake Chany
  • NOAA image
  • Satellite remote sensing
  • South western Siberia

ASJC Scopus subject areas

  • Ecology
  • Aquatic Science
  • Water Science and Technology

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