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干旱是内蒙古最为频发、最为严重的气象灾害之一。针对这一事实，本文对利用气象卫星ＮＯＡＡ／ＡＶＨＲＲ资料遥感监测土壤干旱方法进行了研究。其主要内容有：提出了适用于极轨气象卫星资料的、可以较好地反映土壤干旱程度的干旱指数，并生成了干旱指数数字型图象；建立各层土壤含水量与干旱指数之间的关系模式。基于上述工作，生成了实验区土壤干旱等级图，利用该图我们可以分析干旱发生区域，不同区域的干旱程度，统计实验区内不同干旱程度土地的面积等旱情信息，为有关部门合理安排、指导农牧业生产、抗旱救灾、灾情评估提供科学依据
Drought is one of the most frequent and serious meteorological disasters in Inner Mongolia. In response to this fact, this paper studied the method of remote sensing monitoring of soil drought using meteorological satellite NOAA / AVHRR data. The main contents are as follows: The drought index which can be used to reflect the data of polar orbit meteorological satellite, which can well reflect the degree of soil aridity is presented and the digital image of drought index is generated. The relationship between the soil water content and drought index Relationship model. Based on the above work, a map of the soil drought level in the experimental area was generated. With this map, we can analyze the drought information of the drought occurrence area, different areas, and statistics of the area of the land with different degrees of drought in the experimental area, so as to arrange and guide the relevant departments reasonably Agriculture and animal husbandry production, drought relief, disaster assessment to provide a scientific basis