PE&RS October 1998

Cover Image

This image and derived map show the distribution of selected vegetation and geologic materials along the Firehole River in central Yellowstone National Park, Wyoming.  The left image is a false color composite of Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) bands 52, 31, and 19 (0.85, 0.67, and 0.55 um), RGB.  The map at right shows the spectrally dominant material for each pixel, derived using standardized hyperspectral processing incorporated in the ENVI® image processing system.  Mapping results were compiled using ENVI’s integrated vector GIS capabilities.

The AVIRIS-derived map shows characteristic materials found in alkaline active hot springs environments.  The principal mineral is hydrothermal silica, which has a characteristic shortwave infrared spectral signature.  Kaolinite, indicating more acid waters, is also present in some areas.  Biological elements of the hot springs systems (principally coloring of deposits and/or thermal waters by thermophilic algae) were also mapped.  Remote sensing results like these are being used to compare characteristics of active and fossil hot springs with the goals of improving our understanding of these systems and developing improved mineral exploration models.  AVIRIS data courtesy of NASA/JPL, acquired August 7, 1996.

For more information about ENVI, contact Research Systems Inc., 303-786-9900; envi@rsinc.com; or www.rsinc.com. ENVI® is a registered trademark of Better Solutions Consulting LLC, Lafayette, Colorado, www.envi-sw.com.

Highlight Article

963 Use of Image Data to Facilitate Navigation of an Airport Emergency Response System
Nancy E. Podger, James D. Gage, Ronald Teeter, and Thomas M Lillesand

Peer Reviewed Articles (Click the linked titles to see the full abstract)

976 Foreword
Michael E. Hodgson and Bruce A. Davis 

977 An Integration of Remote Sensing, GIS, and Information Distribution for Wildfire Detection and Management
Vincent G. Ambrosia, Sally W. Buechel, James A. Brass,James R. Peterson, Richard H. Davies, Ronald J. Kane,and Steve Spain

Thermal line-scanned imagery, collected from an airborne platform over a wildfire, can be transmitted in near real time to a ground receiving station, processsed, geo-rectified, and distributed via satellite linkage to any location, allowing for rapid detection, response, and disaster mitigation. 

987 GIS and Image Understanding for Near-Real-Time Earthquake Damage Assessment
Paolo Gamba and Fabio Casciati

The capability of a quick change-detection analysis, giventhe availaability of pre-event information in a GIS environment, is discussed. 

995 Identification of Potential Hazardous Waste Units Using  Aerial Radiological Measurements
Patrick J. Bresnahan

An application using aerial gamma ray spectrometer data to identify boundaries of potential hazardous waste units in stream corridors is described. 

1003 A Systems Approach to Environmental Sensitivity Index (ESI) Mapping for Oil Spill Contingency Planning and Response
John R. Jensen, Joanne N. Halls, and Jacqueline Michel

One of the primary objectives of oil spill planning and response, after protecting human life, is to reduce the environmental consequences of the spill and cleanup efforts. 

1015 Application of C-CAP Protocol Land-Cover Data to Nonpoint Source Water Pollution Potential Spatial Models in a Coastal Environment
Floyd M. Henderson, Thomas F. Hart, Jr., Laura Orlando, Brian Heaton, James Portolese, and Robert Chasan

Existing TM land-cover data, soil types, and distanceare used to model coastal nonpoint source waterpollution potential.

Announcements
888 1999 ASPRS Annual Conference
904 Call for Papers: ERIM 4th International Airborne Remote Sensing Conference
971 Call for PE&RS Articles: Photogrammetry
921 Call for Papers: 17th Biennial Workshop on Color Photography & Videography in Resource Assessment
961 PE&RS Back Issues Sale

Columns & Updates
947 Headquarters
949 Society
953 GIS
956 Grids & Datums
958 Remote Sensing

Departments
955 In Memoriam: Henry F. Soehngen
970 Who’s Who in ASPRS
972 Sustaining Members
974 New Members
975 Index to Advertisers
913 Forthcoming Articles
922 Instructions to Authors
931 Calendar
933 Classifieds
935 Professional Directory
939 Membership Application

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