| 利用任意时刻AVHRR资料近似估计区域地表温度日较差的试验 |
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| 引用本文： | 刘晶淼,丁裕国,等.利用任意时刻AVHRR资料近似估计区域地表温度日较差的试验[J].南京气象学院学报,2001,24(3):323-329. |
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| 作者姓名： | 刘晶淼 丁裕国 |
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| 作者单位： | [1]中国气象科学研究院，北京100081 [2]南京气象学院环境科学系，南京210044 |
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| 基金项目： | 国家自然科学基金重大项目 49892 70，国家重点基础研究项目 G1 9980 40 91 1 |
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| 摘 要： | 根据表征土壤温度日变化的土温方程一阶近似解，提出一种利用一日中任意时刻NOAA－AVHRR图像数据估计地表温度日较差的简易推算方法。该方法尤其可用于反演土壤含水量的计算，当图像数据的时次与热惯量法所要求的最高、最低温度时次配不准的情况下，近似地估计地表温度日较差，进而计算地表热惯量及相应的土壤含水量。用实例验证了该方法的可行性，为进一步推广应用奠定基础。
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| 关 键 词： | 热惯量 遥感信息 地表温度日较差 表征土壤温度 土壤含水量 |
EXPERIMENT FOR ESTIMATING DAILY RANGE OF SURFACE TEMPERATURE OVER A REGION USING AVHRR DATA AT ARBITRARY TIME |
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| LIU Jing miao ,DING Yu guo ,WANG Ji jun.EXPERIMENT FOR ESTIMATING DAILY RANGE OF SURFACE TEMPERATURE OVER A REGION USING AVHRR DATA AT ARBITRARY TIME[J].Journal of Nanjing Institute of Meteorology,2001,24(3):323-329. |
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| Authors: | LIU Jing miao DING Yu guo WANG Ji jun |
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| Institution: | LIU Jing miao 1,DING Yu guo 2,WANG Ji jun 2 |
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| Abstract: | A simple method to estimate the daily range of surface temperature is presented by using daily arbitrary time NOAA AVHRR Graph data based on the soil temperature equation which can express the daily variation of soil temperature.Particularly,the method can be applied in the calculation of inverse soil moisture so that when the both times of maximum and minimum temperatures are not consistent with the times that are required by thermal inertia method,this method can approximately estimate the daily range of surface temperature and can calculate thermal inertia of surface and soil moisture. In this paper, the feasibility is demonstrated using real cases. |
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| Keywords: | thermal inertia remote sensing information daily range of temperature |
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