Title :
A study on thermal inertia approach for agricultural drought monitoring in Shaanxi Province, China by using NOAA/AVHRR data
Author :
Li, Xing-Min ; Liu, An-Lin ; Zhang, Shu-Yu ; Wang, Zhao ; Sun, Wei ; Wang, Peng-Xin
Author_Institution :
Remote Sensing Inf. Center for Agric., Xi´´an
Abstract :
Thermal inert in method is one of the main approaches for drought monitoring by using remotely sensed data. The method is widely used in the China North Plain which is relatively flat. In our study, we tried to apply the approach to the agricultural areas of Shaanxi Province in the Northwest China with terrain and climate varies. The results showed that apparent thermal inertia can be used to monitor the drought occurrence. Considering the effects of terrains, vegetation coverage and soil types, the more homogeneous the land surface is, the better correlation between the apparent thermal inertia mid surface soil moisture is
Keywords :
geophysical signal processing; microwave measurement; radiometry; rain; soil; temperature measurement; terrain mapping; vegetation mapping; China North Plain; NOAA/AVHRR data; Shaanxi; agricultural areas; agricultural drought monitoring; land surface; remotely sensed data; soil types; surface soil moisture; thermal inertia; variable climate; variable terrain; vegetation coverage; Equations; Land surface; Land surface temperature; Remote monitoring; Remote sensing; Soil moisture; Surface soil; Temperature sensors; Thermal factors; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1370014
