%0 Journal Article
%T Spatial Distribution of Extraterrestrial Solar Radiation under Rugged Terrains over the Korean Peninsula<br>起伏地形下朝鲜半岛天文辐射的时空分布
%A ZHANG Shifan
%A ZHANG An
%A QI Qingwen
%A LIU Gaohuan
%A <br>张世范
%A 张岸
%A 齐清文
%A 刘高焕
%J 资源科学
%D 2010
%I 
%X Extraterrestrial solar radiation (ESR) is a key component in the calculation of terrestrial net radiation and in the study on solar energy resources. Mountains cover around 80 % of the Korean Peninsula and arable plains are generally small and far in between the successive mountain ranges. The peninsula becomes more mountainous towards the north and the east. However, little work has been done about ESR distribution over rugged terrains until now, which significantly hinders further studies on estimation of net radiation over the Korean Peninsula and in relevant fields. In the present work, the authors performed a study on quantification of ESR under rugged terrain conditions over the Korean Peninsular, and provided a thorough investigation on its spatial and temporal distributions. Shuttle Radar Topography Mission (SRTM) Digital Elevation Model (DEMs) of a spatial resolution of 90 m×90 m and geographic information systems (GIS) techniques were utilized to calculate and analyze the ERR under rugged terrains. A model for computing ESR distribution under rugged terrains was developed and the spatial distribution of ESR for each month across the Korean Peninsula was derived with a spatial resolution of 100 m× 100 m. Results showed that in general, the spatial distribution of ESR over the Korean Peninsula is determined by latitude and terrain factors (e.g., slope, aspect and elevation), with showing that terrain factors have more significant effects on the magnitude of ESR compared with the latitude. It was also found that ESR over the Korean Peninsula greatly varies over seasons, showing the largest value in summer, the smallest value in winter and a medium value in spring and autumn. The total amount of ESR in spring is larger than that in autumn. Results also indicated that the total amount of ESR basically shows a seasonal asymmetric characteristic. Effects of terrain factors on ESR over the Korean Peninsula are least significant in June and the most significant in December.
%K The Korean Peninsula
%K Extraterrestrial solar radiation
%K Rugged terrain
%K DEM<br>朝鲜半岛
%K 天文辐射
%K 空间分布
%K 起伏地形
%K DEM
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=3E886D88ADD4D462D0D41F4A6F0DE586&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=B31275AF3241DB2D&sid=FB3C6F66BC48DD45&eid=47D3259DD85FC8F7&journal_id=1007-7588&journal_name=资源科学&referenced_num=0&reference_num=10