Title :
Application of spaceborne scatterometer for mapping freeze-thaw state in northern landscapes as a measure of ecological and hydrological processes
Author :
McDonald, Kyle ; Kimball, John ; Zimmermann, Reiner ; Way, JoBea ; Frolking, Steve ; Running, Steve
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
Landscape freeze/thaw transitions coincide with marked shifts in albedo, surface energy and mass exchange, and associated snow dynamics. Monitoring landscape freeze/thaw dynamics would improve our ability to quantify the interannual variability of boreal hydrology and river runoff/flood dynamics. The annual duration of frost-free period also bounds the period of photosynthetic activity in boreal and arctic regions thus affecting the carbon budget and the interannual variability of regional carbon fluxes
Keywords :
geophysical techniques; hydrological techniques; ice; remote sensing by radar; spaceborne radar; terrain mapping; boreal hydrology; freeze-thaw state; frost-free period; geophysical measurement technique; hydrology; interannual variability; land ice; land surface; northern landscape; permafrost; radar remote sensing; radar scatterometry; spaceborne scatterometer; terrain mapping; Backscatter; Battery charge measurement; Meteorology; Monitoring; Ocean temperature; Radar measurements; Satellite ground stations; Snow; Spaceborne radar; Springs;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.775050
