Publications

Saka, F; Tekeli, AE; Donmez, S (2021). Effect of Geoid Variations on ICESat Altimeter Based Water Surface Elevations. TEKNIK DERGI, 32(3), 10807-10822.

Abstract
This study investigates the effects of geoid variations on GLAS altimeter onboard ICESat satellite based water surface elevations (WSE) over Burdur Lake (BL). MODIS snow-covered area maps are used to detect water surfaces daily. The differences between ground observations of BL WSE and those calculated using ICESat Global EGM2008 geoid varied between -0.96m and -0.60m with a root mean square error of 0.73m. The errors of recalculated water levels with the updated geoid heights varied from -0 : 20m to 0.16m and the root mean square error decreased to 0.12m. Comparison with DSI ground observations yielded R-2 as 0.98. Water level differences between the successive winter and summer is 0.74m and remained within the maximum change of 1.0m.

DOI:
10.18400/tekderg.634227

ISSN:
1300-3453