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Shortwave RadiationAccurate shortwave radiation data is critical to evapotranspiration (ET) models used for developing irrigation schedules to optimize crop production while saving water, minimizing fertilizer, herbicide, and pesticide applications, reducing soil erosion, and protecting surface and ground water quality. Low cost silicon cell pyranometers have proven to be sufficiently accurate and robust for widespread use in agricultural applications under unobstructed daylight conditions. More expensive thermopile pyranometers are required for use as calibration standards and measurements under light with unique spectral properties (electric lights, under vegetation, in greenhouses and growth chambers). Routine cleaning, leveling, and annual calibration checks will help to ensure the integrity of long-term data.
Document ID
20060026157
Acquisition Source
Johnson Space Center
Document Type
Reprint (Version printed in journal)
Authors
Klassen, Steve
(Utah State Univ. Logan, UT, United States)
Bugbee, Bruce
(Utah State Univ. Logan, UT, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Publication Information
Publication: Micrometeorological Measurements in Agricultural Systems, Chapter 3, American Society of Agronomy monograph No. 47
Publisher: American Society of Agronomy, Inc.
Subject Category
Earth Resources And Remote Sensing
Funding Number(s)
CONTRACT_GRANT: NAG9-1311
Distribution Limits
Public
Copyright
Other

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