A New Point of View on the Relationship Between Global Solar Irradiation and Sunshine Quantifiers
Result description
The relationship between the clearness index and the time averaged sunshine number is studied over short time intervals such as one hour. Several non-linear statistical models have been used. Meteorological and radiometric data from various weather stations of Romania (South-Eastern Europe) are analyzed. Nonlinearity of the relationship is only apparent near the boundary for relative sunshine sigma of 0 or 1 and manifests itself in clearness index jumps mainly at sigma = 0 rather than sigma = 1. The negative clearness index jump at r = 0 decreases while the slope of the relationship increases when the sunshine number is averaged over longer time periods.
Keywords
global solar irradiationsunshine quantifierssunshine numberAngstrom equationstatistical modelingregression analysis
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/68407700:21260/16:00242325
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
A New Point of View on the Relationship Between Global Solar Irradiation and Sunshine Quantifiers
Original language description
The relationship between the clearness index and the time averaged sunshine number is studied over short time intervals such as one hour. Several non-linear statistical models have been used. Meteorological and radiometric data from various weather stations of Romania (South-Eastern Europe) are analyzed. Nonlinearity of the relationship is only apparent near the boundary for relative sunshine sigma of 0 or 1 and manifests itself in clearness index jumps mainly at sigma = 0 rather than sigma = 1. The negative clearness index jump at r = 0 decreases while the slope of the relationship increases when the sunshine number is averaged over longer time periods.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10103 - Statistics and probability
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Solar Energy
ISSN
0038-092X
e-ISSN
—
Volume of the periodical
126
Issue of the periodical within the volume
March
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
252-263
UT code for WoS article
000371193900022
EID of the result in the Scopus database
2-s2.0-84955512984
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Statistics and probability
Year of implementation
2016