PE&RS November 1999

Cover Image

Multi-Mode Image Fusion is an important source of spatial and attribute data for Geographic Information Systems. This image of the San Francisco, California area, USA, is derived from a fused hyperspectral and synthetic aperture radar dataset. Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data were used to derive the image color and JPL L-band AIRSAR data were used to modulate the brightness in a Hue, Saturation, Intensity color transform.  AVIRIS has 224 narrow (10 nm-wide) spectral bands in the 0.4 - 2.5 mm range at 20m spatial resolution. The AIRSAR data were acquired at 10m spatial resolution in TOPSAR (interferometric) mode, which provides C-VV and L-VV (6 and 24 cm vertical-send, vertical-receive polarization) data along with a high resolution DEM.

These data are being used to develop methods for data fusion and analysis. AVIRIS data provide compositional information, which is complemented by the textural information available from the AIRSAR data. Combined analysis identifies unique classes characterized by compositionally diverse materials associated specific textures. Segmentation of the combined dataset using advanced n-dimensional methods provides detailed ground surface information for use in GIS layers.

AVIRIS and AIRSAR data acquired by Jet Propulsion Laboratory were provided by Eastman Kodak Company and processed by Analytical Imaging and Geophysics, Boulder, Colorado using ENVI , the "Environment for Visualizing Images".

For more information about ENVI, contact Research Systems Inc., 303-786-9900; envi@rsinc.com or www.rsinc.com/asprs. ENVI is a registered trademark of Better Solutions Consulting LLC, Lafayette, Colorado, USA; www.envi-sw.com. Analytical Imaging and Geophysics can be contacted at www.aigllc.com.

Foreword

1255 GIS in State and Local Government
James W. Merchant

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

1257 Geographic Information Technology Institutionalization in the Nation's States and Localities
Lisa Warnecke

A national policy and institutional issues warranting investigation by governing leaders and geograhpic information technology professionals is recommended for the 21st century. 

1269 GIS and GPS - The Backbone of Vermont’s Statewide E911 Implementation
Bruce Westcott

E911 was brought about by combining a high-quality, statewide digital road base with local political savvy and volunteer energy, and a technical plan based around GIS and GPS.  

1277 Entrenchment of GIS Technology for Enterprise Solutions in Maryland’s State and Local Government
Timothy W. Foresman, Samuel P. Walker, Christopher T. Daniel, Douglas Adams, Vicki Defries, and Lamere Hennessee

Maryland’s state and local geographic information systems (GIS) implementation has a 25-year history with a wide range of applications and development advances.  

1287 Integrating Geodata Infrastructure from the Ground Up
Francis J. Harvey, Barbara P. Buttenfield, and Susan Carson Lambert

A proposal for vertical integration, currently under discussion in Kentucky and which could serve as a model for other state and local stakeholders to consider, is presented.  

1293 Deriving Current Land-Use Information for Metropolitan Transportation Planning through Integration of Remotely Sensed Data and GIS
Lloyd Coulter, Douglass Stow, Bruce Kiracofe, Chris Langevin, Dongmei Chen, Scott Daeschner, Daen Service, and John Kaiser

Technical approaches and two case studies are described for integrating remotely sensed imagery and ancillary data from GIS databases to update land-use layers that are utilized for transportation planning.  

1301 The Role of States as Key Stakeholders in the National Spatial Data Infrastructure:  Where the Rubber Meets the Road
Sheryl G. Oliver

States act as the important interface between local and federal stakeholders of the NSDI.  

1303 Application of Multi-Temporal Landsat 5 TM Imagery for Wetland Identification
Ross S. Lunetta and Mary E. Balogh

A wetland map prepared from single-date TM Imagery was compared to a hybrid map developed using two dates of imagery.  

1311 Remote Sensing and GIS at Farm Property Level:  Demography and Deforestation in the Brazillian Amazon
Stephen D. McCraken, Eduardo S. Brondizio, Donald Nelson, Emilio F. Moran, Andrea D. Siqueira, and Carlos Rodriguez-Pedraza

A method is developed for superimposing a farm property grid over a multitemporal set of remotely sensed images for linking household behaviors to deforestation rates.  

Announcements
1244 Pecora 14/Land Satellite Information III
1246 ASPRS DC2000 - Annual Conference
1292 PE&RS Special Issue - Call for Papers

Columns & Updates
1229 In Memorium - Rupert B. Southard
1231 The National Spatial Data Council:  A True Partnership for the NSDI
1239 GIS - Breakthrough in Web-Based Geographic Information
1243 Grids & Datums - The Republic of Korea
1248 Industry News

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