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Position: Home > Articles > A Preliminary Study About Farmland Climate Prediction Model in Sichuan Chinese Agricultural Science Bulletin 2014,30 (21) 173-176

四川省农田小气候预测模型初步研究

作  者:
李媛媛;夏玉玲
单  位:
四川省凉山州气象局;中国气象局成都高原气象研究所
关键词:
地表温度;预报模型;误差
摘  要:
为了解决农用天气预报中农田小气候观测资料缺乏的问题,本研究以地表土壤温度为例,利用四川省绵阳站的1981—2009年29年的日平均气温和地表温度资料,研究了地表温度与气温的交叉相关关系,并利用逐步回归统计方法建立了以气温为自变量的地表土壤温度预报模型,并进行了统计检验和预测试验。结果表明,大部分预测值与实测值的误差都在+1.0℃~-1.0℃以内,平均相对误差均低于10%,说明预报方程有较高的精度,可以用于地表土壤温度的预测中。
译  名:
A Preliminary Study About Farmland Climate Prediction Model in Sichuan
作  者:
Li Yuanyuan;Xia Yuling;Chengdu Institute of Plateau Meteorology,China Meteorological Administration;Sichuan Provincial Agrometeorological Center;Liangshan Meteorological Bureau;
关键词:
land surface temperature;;forecast model;;deviation
摘  要:
In order to resolve the deficiency of micro-climatic observation data in the work of agricultural weather forecast, a case study of Mianyang had been researched. The author used the date of average temperature and land surface temperature from 1981 to 2009, the relationship between them had been analyzed. Based the results, the forecast model that using the temperature as the independent variable had been established by the method of stepwise regression analysis, and the result had been tested.It showed that:most of deviation between predictive value and measured value were less than ±1.0℃, and the average relative error less than 10%. The result showed that forecast model had high precision, and that could be use to prediction of land surface temperature.

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