水资源与水工程学报Issue(2)：232-236,240,6.DOI:10.11705/j.issn.1672-643X.2015.02.46
内蒙古东部牧区缺测数据条件下适宜E T0计算方法优选
Optimal slection of ET0 calculation methods under condition of lack of measured data in eastern mongolia pastoral areas
石明宇1
作者信息
- 1. 内蒙古自治区水利水电勘测设计院，内蒙古呼和浩特010020
- 折叠
摘要
Abstract
Many regions in eastern pastoral areas of Inner Mongolia locate in far distance and have limited meteorological stations , the calculation of ET0 in application of FAO56 Penman-Monteith formula is rela-tive difficult.In order to calculate ET0 accurately under the condition of lack of meteorological data ,the paper relied on data of typical meteorological stations , and took FAO56 Penman-Monteith as standard method,took methods of FAO17 Penman,Priestley-Taylor,Irmark-Allenfitting and Hargreaves -Sama-ni as comparative method to compute ET0 ,and evaluated the applicability of the four methods .The results show that the values calculated by methods of Priestley -Taylor and Hargreaves-Samani are greater than that by FAO56 Penman -Monteith method , and are not suitable for the region .FAO17 Penman method and Irmark-Allen method got approximated calculation results whose relative error is less than 15%and had great accuracy .However , Irmark-Allen method need only meteorology data such as air temperature and sunshine time .Therefore ,Irmark-Allen method is suitable for eastern pastoral areas of Inner Mongo-lia to calculate ET0 with lack of meteorological data .关键词
ET0 计算方法/气温/日照时间/Irmark-Allen方法/方法优选/内蒙古东部牧区Key words
ET0 caculation method/temperature/sunshine/Irmark-Allen method/poptimal selection of ET0 calculation methods/eastern pastoral areas in Inner Mongolia分类
农业科技引用本文复制引用
石明宇..内蒙古东部牧区缺测数据条件下适宜E T0计算方法优选[J].水资源与水工程学报,2015,(2):232-236,240,6.
