Publications

Tekeli, AE (2018). Augmenting in Situ Lake Level Measurements with Earth Observation Satellites. TEKNIK DERGI, 29(6), 8675-8689.

Abstract
In this article, Ice, Cloud and Land Elevation Satellite (ICESat) altimeter data were used with Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover maps to determine Aksehir Lake/wetland water levels, which dried up in 2008. Since the water level dropped below the gage in 2004, the ICESAT-MODIS (ICEM)-based lake water levels could not be compared with gage levels. Instead, combined use of Landsat satellite based lake surface area studies and Aksehir Lake bathymetry (LAB) enabled ICEM assessment. ICEM and LAB differences are between -0.09m and 0.32m and close to the standard deviations (s.d.) of pure ICESat-based studies (0.02m-0.27m). The minimum and maximum water surface elevation changes of ICEM between consecutive winter and spring are 0.30m and 1.35m and are in the historical range. ICEM showed highest s.d. during October 2005, when the wind velocities were highest.

DOI:
10.18400/tekderg.341316

ISSN:
1300-3453