Modelling Solar Radiation in the Arctic an Improved Method for the Subdivision of Global Radiation

From an analysis of solar radiation collected at Alert, N.W.T., it was shown previously 2 that existing solar energy models overestimate slope irradiance at low solar angles. In this technical note it is shown that this overestimation results from the breakdown of the relationship between sky condit...

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Bibliographic Details
Main Authors: Gardner, C. L., Nadeau, C. A.
Other Authors: DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
Format: Text
Language:English
Published: 1991
Subjects:
Astrophysics
*RADIATION
MODELS
SOLAR ENERGY
ARCTIC REGIONS
SLOPE
SKY
SOLAR RADIATION
GLOBAL
RADIANCE
*SOLAR RADIATION
ARCTIC
SUBDIVISION OF GLOBAL RADIATION
SOLAR ENERGY MODELS
CANADA
FOREIGN REPORT
Arctic
Canada
Online Access:http://www.dtic.mil/docs/citations/ADA246271
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA246271
Description
Summary:From an analysis of solar radiation collected at Alert, N.W.T., it was shown previously 2 that existing solar energy models overestimate slope irradiance at low solar angles. In this technical note it is shown that this overestimation results from the breakdown of the relationship between sky condition and atmospheric transmittivity. In particular, at low solar elevations, the portion of the global radiation being attributed to direct radiation at low solar elevations has been developed.

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