NDLI: A new multi-sensor approach to measurement of topographic changes resulting from active volcanism

Content Provider	IEEE Xplore Digital Library
Author	McAlpin, D. Meyer, F. Webley, P.
Copyright Year	2011
Description	Author affiliation: Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Dr., 99775, USA (McAlpin, D.; Meyer, F.; Webley, P.)
Abstract	Remote sensing of surface deformation from volcanic activity is essential to modern volcanology. This paper provides an example of how observations from multiple sensors can be combined to measure topographic changes resulting from active volcanism. High resolution DEMs were derived from optical triplets acquired by the ALOS-PRISM sensor, and processed with microwave data from ALOS-PALSAR to produce centimeter scale deformation maps and decorrelation maps of March–April, 2009 lahars in the Drift River Valley, Alaska. We demonstrate that multi-sensor data fusion of readily available, inexpensive satellite images and data is an immediately available method of increasing accuracy and precision in measuring volcanic deposition and deformation.
Starting Page	586
Ending Page	589
File Size	890744
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049196
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rivers Satellites Coherence Optical sensors Volcanoes Surface topography DEMs fusion SAR InSAR PRISM PALSAR
Content Type	Text
Resource Type	Article

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