| 东北地区夏季旬土壤水分推算模型的初步探讨 |
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| 引用本文： | 柴波,余锦华,刘晶淼,丁裕国.东北地区夏季旬土壤水分推算模型的初步探讨[J].气象科学,2012,32(4):430-436. |
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| 作者姓名： | 柴波 余锦华 刘晶淼 丁裕国 |
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| 作者单位： | 1. 南京信息工程大学气象灾害省部共建教育部重点实验室,南京,210044
2. 中国气象局沈阳大气环境研究所,沈阳,110016 |
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| 基金项目： | 公益性行业(气象)科研专项(201106026);国家重点基础研究发展计划(973计划)项目(2012CB955903) |
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| 摘 要： | 利用东北地区1993—2009年6—8月旬土壤湿度资料,首先采用CAST聚类法对该区域土壤湿度进行气候分区,再以土壤水量平衡原理为依据,在考虑有物理意义的影响因子基础上,分别对每个分区建立统计回归模型,并验证模型的适用性。结果表明:模拟精度在78.8%～88.2%之间,该模型对于东北地区夏季的旬土壤湿度具有一定的推算能力,可以作为一种可应用的模拟方法。
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| 关 键 词： | 土壤湿度 统计聚类检验 统计模型 |
| 收稿时间： | 2011/7/12 0:00:00 |
| 修稿时间： | 2012/4/27 0:00:00 |
Primary approach to the calculation model of summer soil moisture in northeast China |
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| CHAI Bo,YU Jinhu,LIU Jingmiao and DING Yuguo.Primary approach to the calculation model of summer soil moisture in northeast China[J].Scientia Meteorologica Sinica,2012,32(4):430-436. |
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| Authors: | CHAI Bo YU Jinhu LIU Jingmiao and DING Yuguo |
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| Institution: | Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044, China;Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044, China;Shenyang Institute of Atmospheric Environment, Shenyang 110016,China;Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | Based on the data(1993—2009) of dekad soil moisture observed during June to August,by using the statistical method of CAST,the climatic classification and compartment of soil moisture in northeast China have been studied.By using the soil moisture balance equation and considering the influential factors of soil moisture,a statistical regression model was formed respectively for each region.Then an experimentation was carried out to study the applicability of the statistical regression model.The results show that the simulation precision of the model is about 78.8%-88.2%.So we can draw a conclusion that the model can be used to simulate and calculate summer soil moisture in northeast China. |
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| Keywords: | Soil moisture CAST Statistical model |
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