PE&RS July 2001

Cover Image
This month’s cover image, created by the Florida Fish & Wildlife Conservation Commission’s Florida Marine Research Institute, features a Landsat TM mosaic enhanced using bathymetry data. The image is of Charlotte Harbor, Florida, located along the southwest Gulf Coast. Two Landsat TM images were acquired January 26, 1997, when the weather conditions and water clarity were optimal. A detailed bathymetry surface was generated using NOAA-NOS National Hydrographic Survey data, combined with ancillary data from NOAA Nautical Charts, and other sources. The bathymetry surface was used to produce a shaded relief view of the Charlotte Harbor estuary and coastal environs. The Landsat TM image mosaic was masked to isolate water and used to color the shaded relief view using bands 3, 2, and 1 (RGB). The resulting image is displayed as a color composite with land areas being filled in by the Landsat TM mosaic using bands 4, 3, and 2 (RGB). The enhanced image provides a wealth of information not readily apparent in the Landsat imagery or in the bathymetry data alone.

For more information on why and how this image was created, see the “Highlight Article” on page 769 in this issue of PE&RS.

Highlight Article

769 Maximizing Information Content of Landsat Imagery for Coastal Zone Applications
Paula Houhoulis Smit

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

825 Detection of Positional Errors in Systems Utilizing Small-Format Digital Aerial Imagery and Navigation Sensors Using Area-Based Matching Techniques
Amr Abd-Elrahman, Leonard Pearlstine, Bon A. Dewitt, and Scot E. Smith

Low cost systems that employ onboard small-format digital cameras, GPS receivers, and attitude and heading measuring devices can be efficiently utilized as a point sampling technique.

833 Remote Sensing and Cast Shadows in Mountainous Terrain
Philip T. Giles
The problem of cast shadows in optical-infrared satellite imagery of mountainous terrain is discussed and an algorithm for delineating cast shadows is evaluated.

841 Monitoring the Magnitude of Land-Cover Change around the Southern Limits of the Sahara
G.M. Foody

The magnitude of inter-annual land-cover changes in the Sahel over the period 1982-1990 was mapped through the evaluation of a series of fuzzy image classifications.

849 Using Spatial Co-Occurrence Texture to Increase Forest Structure and Species Composition Classification Accuracy
S.E. Franklin, A.J. Maudie, and M.B. Lavigne

The ability to accurately classify forest structure and species composition using high spatial resolution multispectral digital imagery may contribute to the development of new methods to produce forest stand inventories.

857 Mapping Seasonal Flooding in Forested Wetlands Using Multi-Temporal Radarsat SAR
Philip A. Townsend

Eleven C-HH synthetic aperture radar (SAR) images from Radarsat are used to accurately detect flood inundation across seasons on the Roanoke River floodplain, North Carolina.

865 Combining Location and Classification Error Sources for Estimating Multi-Temporal Database Accuracy
Yohay Carmel, Denis J. Dean, and Curtis H. Flather

A probabilistic error model is developed for multi-temporal datasets, accounting for both misregistration and classification error, in order to assess overall uncertainty in such datesets.

Announcements
816 ASPRS-ACSM 2002 Conference
822 Measuring the Earth — Digital Elevation Technologies
855 CALL FOR Papers: Characterizing and Modeling Landscape Dynamics
Cover 3 Integrating Remote Sensing at the Global, Regional, and Local Scale

Columns & Updates
773 Book Review
777 Grids & Datums — Republic of Bolivia
781 Headquarters News
783 Industry News

Departments
820 Sustaining Members
824 Index to Advertisers
824 New Members
832 Instructions to Authors
840 Forthcoming Articles
856 Calendar
873 Classifieds
875 Bookstore
879 Professional Directory
883 Membership Application

Yearbook
788 2001 Board of Directors
789 ASPRS: The Imaging and Geospatial Information Society
790 Installation of Officers
791 President’s Address
793 Executive Director’s Report
798 Award Recipients
805 Memorial Address: Joseph P. Burns, PE
811 Memorial Address: Houssam Mahmoud Karara
817 Who’s Who in ASPRS

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