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Temporal variability of climatic parameters and potential evapotranspiration

Indian Agricultural Research Journals

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Title Temporal variability of climatic parameters and potential evapotranspiration
 
Creator PATLE, G T
SINGH, D K
SARANGI, A
RAI, ANIL
KHANNA, MANOJ
SAHOO, R N
 
Subject Climate change, Evapotranspiration, Mann-Kendall test, Sen’s estimator, Trend analysis
 
Description A study was undertaken to evaluate the temporal variability in climatic parameters and potential evapotranspiration (PET) of reference crop. Time series data (1981-2011) of mean daily minimum and maximum temperature, mean daily temperature, relative humidity, wind speed and sunshine hours were analysed using Mann-Kendall test and Sen’s slope estimator to establish the trend. The CROPWAT model was used to estimate the PET. Minimum temperature, mean daily temperature, relative humidity and wind showed increasing trend, whereas sunshine hour and ETo had decreasing trend. Results revealed that mean daily minimum and mean daily temperature increased by 0.02°C/year and 0.01°C/year, respectively. Mean daily maximum temperature remained constant over the period as indicated by the Sen’s slope. Mean daily relative humidity and wind speed increased by 0.11% per year and 0.57 km/year during 1981–2011. Mean daily sunshine hours and reference evapotranspiration decreased by 0.06 hour/year and 0.01 mm/year, respectively during 1981–2011.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-05-06
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29637
 
Source The Indian Journal of Agricultural Sciences; Vol 83, No 5 (2013)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29637/13339
 
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