CRU数据集在黑龙江省ET_0计算中的应用  

Application of CRU dataset to calculation of ET_0 of Heilongjiang Province

作　　者：戚颖[1,2] 王斌[2] 黄金柏 李新虎[4] 施枫芝[4] 

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040 [2]东北农业大学水利与建筑学院,黑龙江哈尔滨150030 [3]扬州大学水利与能源动力工程学院,江苏扬州225009 [4]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011

出　　处：《河海大学学报（自然科学版）》2014年第4期367-371,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(51009026;41271046);黑龙江省教育厅科学技术研究项目(12531024)

摘　　要：针对我国参考作物蒸发蒸腾量(ET0)计算中存在的气象数据不易获取、现有作物需水量数据空间分辨率较低等问题,以黑龙江省为例,基于10 min分辨率的CRU CL 2.0数据集,采用FAO Penman-Monteith公式建立了适于计算区域ET0的栅格模型,并应用黑龙江省14个气象站的实测气象数据对该模型计算成果进行了验证。结果表明:采用CRU CL 2.0数据计算区域ET0是可行的,其计算结果与应用实测气象数据计算所得的ET0符合较好,不仅可以细化我国ET0和作物需水量研究成果,也为气象资料缺乏情况下的ET0计算供了一种新的计算模式。In the calculation of reference crop evapotranspiration （ET0 ） in China, meteorological data are difficult to access, and there is a low spatial resolution of the data on crop water requirements. To solve these problems, a grid computing model for ET0 was developed using the FAO Penman-Monteith equation in a case study in Heilongjiang Province. A dataset of CRU （climatic research unit） CL 2. 0 with a resolution of 10 minutes was used to construct the model. This model was validated with observed meteorological data from 14 meteorological stations in Heilongjiang Province. The results show that the performance of the model is acceptable. The ET0 calculated with the model agreed with that calculated using observed meteorological data. Results from the present research not only help refine the research results of ET0 and crop water requirements in China, but also provide an innovative model for calculating ET0 in regions lacking meteorological data.

关 键 词：参考作物蒸发蒸腾量 CRU 数据集 栅格计算模型 黑龙江省 

分 类 号：S161.4[农业科学—农业气象学]