Characteristics of hourly global irradiance modelled from cloud data

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Solar Energy (Journal of Solar Energy Science and Engineering); (United States)

DOI:https://doi.org/10.1016/0038-092X(93)90097-8· OSTI ID:5590474

Olseth, J A; Skartveit, A ^[1]

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1. Univ. of Bergen (Norway)

A model yielding hourly global irradiance from cloud observations is presented. Tested against independent observations of hourly irradiance, the model yields a correlation coefficient 0.92. The corresponding correlation coefficients for daily and monthly values are 0.975 and 0.998, respectively. The mean bias and root-mean-square errors for hourly data are less than, respectively, 3% and 30% of the average. Moreover, the frequency distributions and the lag one autocorrelations of modelled hourly averages are close to those of the observed data.

• OSTI ID: 5590474
• Journal Information: Solar Energy (Journal of Solar Energy Science and Engineering); (United States), Journal Name: Solar Energy (Journal of Solar Energy Science and Engineering); (United States) Vol. 51:3; ISSN SRENA4; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140100* -- Solar Energy-- Resources & Availability
54 ENVIRONMENTAL SCIENCES
540110
ACCURACY
CLOUD COVER
COMPARATIVE EVALUATIONS
DAILY VARIATIONS
DATA
EVALUATED DATA
EVALUATION
HOURLY VARIATIONS
INFORMATION
MATHEMATICAL MODELS
MONTHLY VARIATIONS
NUMERICAL DATA
RADIATIONS
SOLAR RADIATION
STELLAR RADIATION
VARIATIONS