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Titolo:
THE USE OF SAR SATELLITE IMAGERY TO MEASURE ACTIVE LAYER MOISTURE CONTENTS IN ARCTIC ALASKA
Autore:
KANE DL; HINZMAN LD; YU HF;
Indirizzi:
UNIV ALASKA FAIRBANKS,WATER RES CTR,INST NO ENGN,460 DUCKERING BLDG FAIRBANKS AK 99775
Titolo Testata:
Nordic hydrology
fascicolo: 1-2, volume: 27, anno: 1996,
pagine: 25 - 38
SICI:
0029-1277(1996)27:1-2<25:TUOSSI>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOIL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
D.L. Kane et al., "THE USE OF SAR SATELLITE IMAGERY TO MEASURE ACTIVE LAYER MOISTURE CONTENTS IN ARCTIC ALASKA", Nordic hydrology, 27(1-2), 1996, pp. 25-38

Abstract

Synthetic aperture radar (SAR) has the potential for measuring near surface soil moisture contents for very large areas. The polar orbitingEuropean Remote Sensing satellite (ERS-1) of the European Space Agency (ESA) has onboard an active C-band SAR sensor. We have analyzed SAR imagery over a small research watershed, Imnavait Creek, located in the northern foothills of the Brooks Range in Alaska, U.S.A. This watershed is treeless and completely. underlain with permafrost. After geometrically and radiometrically correcting each pixel (25 m by 25 m) in the image, corrected pixel values were correlated with corresponding field moisture contents measured along transects in the watershed for two passes of the satellite. Coefficients of determination, r(2), between the corrected pixel value and measured moisture content were 0.49 onJune 12, 1993 and 0.53 on August 2, 1993; with the data sets combinedthe value was 0.50.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 20:50:13