Open AccessPREDICTING SOLAR RADIATION FOR TROPICAL ISLANDS FROM RAINFALL DATA
Author(s) -
S. Sendanayake,
Nandika Miguntanna,
Mtr Jayasinghe
Publication year - 2016
Publication title -
journal of urban and environmental engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.187
H-Index - 13
ISSN - 1982-3932
DOI - 10.4090/juee.2015.v9n2.109118
Subject(s) - cloud cover , sunshine duration , environmental science , relative humidity , sri lanka , meteorology , climatology , wind speed , tropical cyclone , atmospheric sciences , geography , cloud computing , geology , environmental planning , computer science , tanzania , operating system
There are many correlations developed to predict incident solar radiation at a given location developed based on geographical and meteorological parameters. However, all correlations depend on accurate measurement and availability of weather data such as sunshine duration, cloud cover, relative humidity, maximum and minimum temperatures etc, which essentially is a costly exercise in terms of equipment and labour. Sri Lanka being a tropical island of latitudinal change of only 30 along the length of the country, the meteorological factors govern the amount of incident radiation. Considering the cloud formation and wind patterns over Sri Lanka as well as the seasonal rainfall patterns, it can be observed that the mean number of rainy days can be used to predict the monthly average daily global radiation which can be used for calculations in solar related activities conveniently.