NDLI: Application of Principal Component Analysis in Evaluating Influence Factors of Evaporation in Northern Cold Area

Content Provider	IEEE Xplore Digital Library
Author	Li Tianxiao Fu Qiang Xu Shuqin Meng Fanxiang
Copyright Year	2009
Abstract	There are many meteorological factors affecting evaporation, which are not only considered comprehensively, but also their influence degree respectively. The contribution of each factor to principle component can be reflected by the coefficient of each factor in principal component equation, and then the main factor can be determined. Taking Chahayang irrigation area in Heilongjiang province for example, the data of influence factors from May to September in 2007 such as temperature, relative humidity, wind speed, vapor pressure and sunshine is analyzed with Principal Component Analysis (PCA for short). The results show that the change of evaporation is the result of the combined effect of numerous metrological factors which interact with each other, but when the temperature is kept unchanged, the average sunshine turns out to be the main factor.
Starting Page	514
Ending Page	518
File Size	888099
Page Count	5
File Format	PDF
ISBN	9780769537368
DOI	10.1109/ICNC.2009.721
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Irrigation Meteorological factors Land surface temperature Equations influential factor Chahayang irrigation district Water heating Humidity Computer applications Eigenvalues and eigenfunctions evaporation Water resources principal component analysis Principal component analysis
Content Type	Text
Resource Type	Article

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