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Remote Sens. 2010, 2(3), 777-793;

Snow Cover Monitoring Using MODIS Data in Liaoning Province, Northeastern China

Institute of Space and Earth Information Science, Yuen Yuen Research Centre for Satellite Remote Sensing, The Chinese University of Hong Kong, Shatin, Hong Kong, China
Author to whom correspondence should be addressed.
Received: 25 January 2010 / Revised: 2 March 2010 / Accepted: 2 March 2010 / Published: 17 March 2010
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This paper presents the results of snow cover monitoring studies in Liaoning Province, northeastern China, using MODIS data. Snow cover plays an important role in both the regional water balance and soil moisture properties during the early spring in northeastern China. In addition, heavy snowfalls commonly trigger hazards such as flooding, caused by rapid snow melt, or crop failure, resulting from fluctuations in soil temperature associated with changes in the snow cover. The latter is a function of both regional, or global, climatic changes, as well as fluctuations in the albedo resulting from variations in the Snow Covered Area (SCA). These impacts are crucial to human activities, especially to those living in middle-latitude areas such as Liaoning Province. Thus, SCA monitoring is currently an important tool in studies of global climate change, particularly because satellite remote sensing data provide timely and efficient snow cover information for large areas. In this study, MODIS L1B data, MODIS Daily Snow Products (MOD10A1) and MODIS 8-day Snow Products (MOD10A2) were used to monitor the SCA of Liaoning Province over the winter months of November–April, 2006–2008. The effects of cloud masking and forest masking on the snow monitoring results were also assessed. The results show that the SCA percentage derived from MODIS L1B data is relatively consistent, but slightly higher than that obtained from MODIS Snow Products. In situ data from 25 snow stations were used to assess the accuracy of snow cover monitoring from the SCA compared to the results from MODIS Snow Products. The studies found that the SCA results were more reliable than MODIS Snow Products in the study area. View Full-Text
Keywords: SCA monitoring; Liaoning Province; MODIS L1B; MODIS snow products SCA monitoring; Liaoning Province; MODIS L1B; MODIS snow products
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Zhang, Y.; Yan, S.; Lu, Y. Snow Cover Monitoring Using MODIS Data in Liaoning Province, Northeastern China. Remote Sens. 2010, 2, 777-793.

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