NDLI: Environmental change detection in prairie landscapes with simulated Radarsat 2 imagery

Content Provider	IEEE Xplore Digital Library
Author	Buckley, J.R.
Copyright Year	2002
Description	Author affiliation: Centre for Space Res., R. Mil. Coll. of Canada, Kingston, Ont., Canada (Buckley, J.R.)
Abstract	For the past decade, we have been using Landsat TM imagery to monitor changes in the area and distribution of ecosystems in a relatively undisturbed natural region in southwestern Manitoba, Canada. The 40,000 hectares of Canadian Forces Base Shilo are protected from urbanisation, commercialisation and agriculture, and are disturbed only by modest and controlled amounts of military training. A significant problem with the use of TM imagery for this study is that some of the more sensitive indicators of environmental change, such as the infestation of disturbed grassland by leafy spurge, are very difficult to identify and delineate in the visible and near-IR bands. A fully polarized SAR that is sensitive to vegetation morphology may not have the same difficulty. C band radars, such as that being constructed for Radarsat 2, are known to have difficulty differentiating vegetation types in regions of dense foliage, but, in a prairie ecosystem such as the one under study here, even the densest foliage should be sparse enough to yield a unique polarisation signature. In order to test this hypothesis we have simulated Radarsat 2 HH, HV and VV images, using several TM images of the area, polarisation ratios extracted from the literature for vegetation types similar to those found in the area, and a Radarsat 1 HH image of the area collected almost simultaneously with one of the TM images. Comparison of synthesized imagery from different years shows sufficient differences to imply that Radarsat 2 imagery will likely be a useful tool for continuing our prairie ecosystem monitoring and assessment.
Sponsorship	IEEE IEEE Geosci. & Remote Sensing Soc. Canadian Remote Sensing Soc. Univ. Waterloo Natural Resources Canada (NRCan) Canadian Space Agency (CSA) Environ. Canada NASA Nat. Oceanic & Atmos. Adm. (NOAA) Office of Naval Res.(ONR) Nat. Space Dev. Agency of Japan (NASDA) Nat. Polar-orbiting Environ. Satellite Syst. (NPOESS)
Starting Page	3255
Ending Page	3257
File Size	572583
Page Count	3
File Format	PDF
ISBN	078037536X
DOI	10.1109/IGARSS.2002.1027147
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar detection Ecosystems Polarization Vegetation mapping Monitoring Satellites Remote sensing Protection Agriculture Force control
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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