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http://dx.doi.org/10.3741/JKWRA.2010.43.4.409

An Analysis of Temporal Characteristic Change for Various Hydrologic Weather Parameters (I) - On the Basic Statistic, Trend -  

Lee, Jae-Joon (School of Civil and Environmental Engrg., Kumoh National Institute of Technoligy)
Jang, Joo-Young (School of Civil Engrg., Kumoh National Institute of Technology)
Kwak, Chang-Jae (School of Civil Engrg., Kumoh National Institute of Technology)
Publication Information
Journal of Korea Water Resources Association / v.43, no.4, 2010 , pp. 409-419 More about this Journal
Abstract
In this study, for the purpose of analyzing the characteristics of Korean hydrologic weather parameters, 9 hydrologic weather parameters data such as annual precipitation, annual rainy days, annual average relative humidity, annual average temperature, annual duration of sunshine, annual evaporation, annual duration of precipitation, annual snowy days and annual new snowy days are collected from 63 domestic meteorological stations that has the hydrologic weather parameters records more than 30 years. And the basic characteristics of hydrologic weather parameters through basic statistics, moving average and linear regression analysis are perceived. Also trend using the statistical methods like Hotelling-Pabst test and Mann-Kendall test about hydrologic weather parameters is analyzed. Through results of basic analysis, moving average and linear regression analysis it is shown that precipitation is concentrated in summer and deviation of precipitation for each season showed significant difference in accordance with Korean climate characteristics, besides the increase in annual precipitation and annual average temperature, annual average relative humidity and annual duration of sunshine reduction and annual rainy days is said to increase or decrease. The results of statistical analysis of trend are summarized as trend commonly appeared in annual average relative humidity and annual average temperature. and annual precipitation, annual rainy days and annual duration of sunshine showed different results according to area.
Keywords
hydrologic weather parameters; basic statistics; trend;
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Times Cited By KSCI : 3  (Citation Analysis)
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