Special Section on Progress in Snow Remote Sensing

Analysis of spatiotemporal snow cover variations in Northeast China based on moderate-resolution-imaging spectroradiometer data

[+] Author Affiliations
Lan-Yu Li, Chang-Qing Ke

Nanjing University, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, No. 163 Xianlin Avenue, Nanjing 210046, China

Nanjing University, Key Laboratory for Satellite Mapping Technology and Applications of State Administration of Surveying, Mapping and Geoinformation of China, No. 163 Xianlin Avenue, Nanjing 210046, China

J. Appl. Remote Sens. 8(1), 084695 (Apr 28, 2014). doi:10.1117/1.JRS.8.084695
History: Received November 19, 2013; Revised March 28, 2014; Accepted April 1, 2014
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Abstract.  In this study, MODIS/Terra 8-day snow cover product (MOD10A2) was used to analyze the spatiotemporal characteristics of snow cover in northeast China for the period 2002-2011. For those MOD10A2 data with cloud cover more than 10%, the combined MOD10A2 and MYD10A2 (MODIS/Aqua) snow cover products were used. The results indicated that the snow cover area was greatest at 63% in January. The greatest extent and duration of snow cover were observed in 2010, and the opposite extremes occurred in 2008. The snow cover frequency (SCF) was relatively high in high-altitude areas, such as the Hulun Buir Plateau, the northern Da Hinggan Mountains, and the eastern Changbai Mountains; by contrast, the SCF was low in the Liaodong Peninsula. Trends in the snow cover frequencies were essentially opposite to the spatial distribution of the snow cover; the SCF decreased in areas with more snow and increased in areas with less snow. There was a clear variation in the snow accumulation, with lower temperatures in December, January, and February, where a negative relationship existed between the SCF and monthly average temperature below 0°C. Snow cover frequencies during the winter months were slightly positively correlated with precipitation.

Figures in this Article
© 2014 Society of Photo-Optical Instrumentation Engineers

Topics

MODIS ; Clouds

Citation

Lan-Yu Li and Chang-Qing Ke
"Analysis of spatiotemporal snow cover variations in Northeast China based on moderate-resolution-imaging spectroradiometer data", J. Appl. Remote Sens. 8(1), 084695 (Apr 28, 2014). ; http://dx.doi.org/10.1117/1.JRS.8.084695


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