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The dynamic monitoring and mapping of soil salinization is a practical significance work at present. In this paper, the middle reaches of Heihe River, China, was taken as a study case to discuss the effectiveness of extracting saline land information applying decision tree approach, based on Landsat TM data acquired on Sep.23, 2007. Through visual interpretation and statistical analysis of spectral...
The glacial lakes from 1977 to 2009 in the Nepal-China border region were investigated using satellite imagery. 247 ice-contact or ice-proximal glacial lakes with total area of 126.3km2 in the study area were identified in 2009. The expansion rate of growing lakes are approximately <70m/year in length and 0.12 km2/year in area since1977, respectively. The glacial lake growth rate keeps increase...
The first glacier inventory in China which accomplished in 2002 made great contribution to World Glacier Inventory (WGI). The publication series of Glacier Inventory of China are the representative accomplishments of this project, which contain 21 books and about 200 attached maps. The database of Chinese glacier inventory has been developed on the basis of the publication of first glacier inventory...
Glacial lake inventory is the main method to investigate the glacial lakes in remote area and provides required information for glacier risk management and climate change research. A glacial lake inventory based on Landsat TM/ETM+ images has been carried in Hindu-Kush Himalaya regions, and 20204 glacial lakes with total area of 1955.75 km2 are documented by this inventory. This paper introduced the...
This paper provides an overview of the current status of the cryosphere in China and its changes. Up-to-date statistics of the cryosphere in China are summarized based on the latest available data. There are 46,377 glaciers in China, covering an area of 59,425 km 2 . The glacier ice reserve is estimated to be about 5600 km 3 and the annual glacier runoff is about 61.6×10 9 ...
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