Title :
Ice flow estimation of Shirase Glacier by using JERS-1/SAR image correlation
Author :
Nakamura, Kazuki ; Wakabayashi, Hiroyuki ; Doi, Koichiro ; Shibuya, Kazuo
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba
Abstract :
We applied an image correlation method to the Japanese Earth Resources Satellite-1 (JERS-1) synthetic aperture radar (SAR) data obtained from 1996 to 1998. The obtained ice flow velocity was systematically larger on the western streamline than on the eastern streamline from the grounding line towards the downstream region. The differences were 0.28 km/a in 1996 and 0.33 km/a in 1998, which were significantly larger than the error estimate of 0.04 km/a. The ice flow direction was about 312deg at the grounding line and changed to 327deg at 10 km, 346deg at 20 km and 2deg at 30 km downstream from the grounding line. The total deflection attained 38deg towards east.
Keywords :
flow; geophysical techniques; glaciology; ice; image matching; remote sensing by radar; synthetic aperture radar; AD 1996 to 1998; JERS-1; Japanese Earth Resources Satellite-1; Shirase Glacier; grounding line; ice flow estimation; ice flow velocity; ice streamline; image correlation method; synthetic aperture radar; Antarctica; Correlation; Earth; Grounding; Ice; Remote sensing; Satellites; Streaming media; Synthetic aperture radar; Tongue; East Antarctica; Shirase Glacier; ice flow; seasonal change; synthetic aperture radar (SAR);
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423780
