This article is - freely available Mapping Land Subsidence
Related to Underground Coal Fires in the Wuda Coalfield
(Northern China) Using a Small Stack of ALOS PALSAR Differential
Interferograms Institute of Spatial Information Technique,
Department of Earth Science, Zhejiang University, Hangzhou
310027, China Institute of Remote Sensing and Geoscience,
Hangzhou Normal University, Hangzhou 311121, China Geological
Survey of Zhejiang Province, Hangzhou 311203, China Laboratory
of Ocean Dynamic Processes and Satellite Oceanography of State
Oceanic Administration, Hangzhou 310012, China * Author to whom
correspondence should be addressed. Received: 12 January 2013;
in revised form: 19 February 2013 / Accepted: 28 February 2013 /
Published: 4 March 2013 Abstract: Coal fires have been found to
be a serious problem worldwide in coal mining reserves. Coal
fires burn valuable coal reserves and lead to severe
environmental degradation of the region. Moreover, coal fires
can result in massive surface displacements due