statistical modeling of spatio-temporal variability in monthly average daily solar radiation over turkey统计建模的时空变异性在月日平均太阳辐射土耳其.pdf
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Sensors 2007, 7, 2763-2778
sensors
ISSN 1424-8220
© 2007 by MDPI
/sensors
Full Research Paper
Statistical Modeling of Spatio-Temporal Variability in Monthly
Average Daily Solar Radiation over Turkey
Fatih Evrendilek 1,* and Can Ertekin 2
1 Department of Environmental Engineering, Abant Izzet Baysal University, Golkoy Campus, 14280
Bolu, Turkey; Tel: +90 374 253 4640, Fax: +90 374 253 4506; E-mail: fevrendilek@;
fevrendilek@.tr
2 Department of Agricultural Machinery, Faculty of Agriculture, Akdeniz University, Antalya,
Turkey.
E-mail: ertekin@.tr
* Author to whom correspondence should be addressed.
Received: 31 October 2007 / Accepted: 14 November 2007 / Published: 15 November 2007
Abstract: Though one of the most significant driving forces behind ecological processes
such as biogeochemical cycles and energy flows, solar radiation data are limited or non-
existent by conventional ground-based measurements, and thus, often estimated from other
meteorological data through (geo)statistical models. In this study, spatial and temporal
patterns of monthly average daily solar radiation on a horizontal surface at the ground level
were quantified using 130 climate stations for the entire Turkey and its conventionally-
accepted seven geographical regions through multiple linear regression (MLR) models as a
function of latitude, longitude, altitude, aspect, distance to sea; minimum, maximum and
mean air temperature and relative hu
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