Estimation of Discharge From Braided Glacial Rivers Using ERS 1 Synthetic Aperture Radar: First Results

Autor:	Arthur L. Bloom, Laurence C. Smith, Richard R. Forster, Bryan L. Isacks, I. Preuss
Rok vydání:	1995
Předmět:	Synthetic aperture radar Mean squared error Streamflow Satellite imagery Rating curve Glacial period Geomorphology Geology Water Science and Technology
Zdroj:	Water Resources Research. 31:1325-1329
ISSN:	0043-1397
Popis:	Using multitemporal ERS 1 synthetic aperture radar (SAR) satellite imagery and simultaneous ground measurements of streamflow, a strong correlation (R2 = 0.89) was found between water surface area and discharge for a braided glacial river in British Columbia, Canada. Satellite-derived effective width (We) was found to vary with discharge (Q) as We = 27.5Q0.42, where We is defined as the total water surface area within a 10 km × 3 km control section, divided by the section length. This “area/discharge rating curve” yields instantaneous discharge estimates with a mean error of ±275 m3/s for ground-measured flows that ranged from 242 to 6350 m3/s.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d7f3d10f7b410ecaa3d0c639ee4bd71e https://doi.org/10.1029/95wr00145 Zobrazit plný text záznamu Plný text