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http://dx.doi.org/10.5532/KJAFM.2012.14.4.155

Estimation of the Periodic Extremes of Minimum Air Temperature Using January Mean of Daily Minimum Air Temperature in Korea  

Moon, Kyung Hwan (National Institute of Horticultural & Herbal Science, RDA)
Son, In Chang (National Institute of Horticultural & Herbal Science, RDA)
Seo, Hyeong Ho (National Institute of Horticultural & Herbal Science, RDA)
Choi, Kyung San (National Institute of Horticultural & Herbal Science, RDA)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.14, no.4, 2012 , pp. 155-160 More about this Journal
Abstract
This study was conducted to develop a practical method for estimating the extremes of minimum air temperature with given return-period based on the frequency distribution of daily minimum air temperature in January. Daily temperature data were collected from 61 meteorological observatories country-wide from 1961 to 2010. Most of daily minimum temperature in January could be represented by a normal-distribution, so it is possible to predict stochastically the lowest temperature by the mean and standard deviation. We developed a quadratic function to estimate standard deviation in terms of daily minimum temperature in January. Also, we introduced a coefficient which can be used to predict an extreme of minimum temperature with mean and standard deviation, and is dependent on return-periods. Using this method, we were able to reproduce the past 30-year extremes with an error of 1.1 on average and 5.3 in the worst case.
Keywords
Daily minimum temperature; Climatic extreme; Return period;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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