EFFECT OF FOREST BIOMASS ON AIRBORNE SNOW WATER EQUIVALENT ESTIMATES OBTAINED BY MEASURING TERRESTRIAL GAMMA-RADIATION

被引：12

作者：

CARROLL, SS ^{[1
]}

CARROLL, TR ^{[1
]}

机构：

[1] NOAA,NATL WEATHER SERV,OFF HYDROL,MINNEAPOLIS,MN

来源：

REMOTE SENSING OF ENVIRONMENT | 1989年 / 27卷 / 03期

关键词：

Biomass - Gamma Rays--Measurements;

D O I：

10.1016/0034-4257(89)90091-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Estimates of snow water equivalent derived from measurements of the attenuation of terrestrial gamma radiation emitted by potassium are systematically biased downward if substantial amounts of forest biomass exist in the region where the radiation measurements are obtained. The degree of underestimation is a function of the amount and type of biomass. The effects of these factors on the snow water equivalent estimate are examined, and a means of correcting for the downward bias is given. The methodology presented can aid National Weather Service hydrologists in improving river and flood forecasts, water supply forecasts, and spring flood outlooks for large areas of the United States and Canada.

引用

页码：313 / 320

页数：8

共 23 条

[1] [Anonymous], [No title captured]
[2] MONITORING SNOW WATER EQUIVALENT BY USING NATURAL SOIL RADIOACTIVITY
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[4] Bowen H., 1979, ENV CHEM ELEMENTS, P61
[5] BRADY NC, 1974, NATURE PROPERTIES SO, P51
[6] GAMMA-RAY ATTENUATION STUDIES OF INTERCEPTION FROM SITKA SPRUCE - SOME EVIDENCE FOR AN ADDITIONAL TRANSPORT MECHANISM
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[J]. WATER RESOURCES RESEARCH, 1986, 22 (03) : 409 - 417
[7] CARROLL SS, 1988, 88897 AR STAT U DEP
[8] CARROLL TR, 1984, 41ST P ANN E SNOW C, P19
[9] CARROLL TR, 1985, 5TH REM SENS S US AR
[10] CARROLL TR, 1983, 51ST P W SNOW C VANC, P27

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