Effect of Geoid Variations on ICESat Altimeter Based Water Surface Elevations
Küçük Resim Yok
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Turkish Chamber Civil Engineers
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Lake Burdur, Geoid, EGM2008, ICESat, GLA14, MODIS, laser altimeter
Kaynak
Teknik Dergi
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
32
Sayı
3
