Integrating map algebra and statistical modeling for spatio-temporal analysis of monthly mean daily incident photosynthetically active radiation (PAR) over a complex terrain
Yükleniyor...
Dosyalar
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Molecular Diversity Preservation Int
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study aims at quantifying spatio-temporal dynamics of monthly mean daily incident photosynthetically active radiation (PAR) over a vast and complex terrain such as Turkey. The spatial interpolation method of universal kriging, and the combination of multiple linear regression (MLR) models and map algebra techniques were implemented to generate surface maps of PAR with a grid resolution of 500 x 500 m as a function of five geographical and 14 climatic variables. Performance of the geostatistical and MLR models was compared using mean prediction error (MPE), root-mean-square prediction error (RMSPE), average standard prediction error (ASE), mean standardized prediction error (MSPE), root-mean-square standardized prediction error (RMSSPE), and adjusted coefficient of determination (R-adj(2).). The best-fit MLR- and universal kriging-generated models of monthly mean daily PAR were validated against an independent 37-year observed dataset of 35 climate stations derived from 160 stations across Turkey by the Jackknifing method. The spatial variability patterns of monthly mean daily incident PAR were more accurately reflected in the surface maps created by the MLR- based models than in those created by the universal kriging method, in particular, for spring (May) and autumn (November). The MLR- based spatial interpolation algorithms of PAR described in this study indicated the significance of the multifactor approach to understanding and mapping spatio-temporal dynamics of PAR for a complex terrain over meso-scales.
Açıklama
Anahtar Kelimeler
Universal Kriging, Multiple Regression Models, PAR, Spatio-temporal Modeling, Map Algebra
Kaynak
Sensors
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
7
Sayı
12
