PE&RS December 1999

Cover Image

This Landsat Thematic Mapper image covers the McMurdo Dry Valleys in Antarctica. The Valleys are located in the South Ross Sea region approximately 120 km WNW of McMurdo Station—the largest United States Antarctic research station. Elevations in the Valleys range from near sea level to 4,025 meters at Mount Lister. The lower regions of the Valleys are generally snow free during the Antarctic summer. Access to the Valleys is by helicopter from McMurdo Station during the austral summer. The Dry Valleys are a primary research area for Antarctic scientists. The image was georeferenced using geodetic control collected in the field, tone matched, and printed at 1:100,000-scale by the U.S. Geological Survey.

For more information contact USGS at 703-648-6010 or http://usarc.usgs.gov.

Highlight Article

1340 The Geodesy and Mapping Program of the United States Geological Survey in Antarctica (Adobe PDF 558Kb)
Jerry L. Mullins, Cheryl A. Hallam, Larry D. Hothem, and Jean-Claude Thomas  

Peer-Reviewed Articles

1375 SAR Interferometry: Software, Data Format, and Data Quality
Rüdiger Gens

The technical specifications of available commercial and non-commercial software packages, a general format for SAR interferometric data, and the importance of data quality and suitable quality measures for InSAR data are considered. 

1379 Alternative Criteria for Defining Fuzzy Boundaries Based on Fuzzy Classification of Aerial Photographs and Satellite Images
Jingxiong Zhang and Roger P. Kirby

A test indicates that a flexible and economical method for describing the quality of spatial boundaries for categorical map data is by the combination of a crisp classification and the corresponding map of maximum fuzzy membership values. 

1389 Probabilistic Prediction Models for Landslide Hazard Mapping
Chang-Jo F. Chung and Andrea G. Fabbri

A joint conditional probability model is proposed to represent a measure of a future landslide hazard, and five estimation procedures for the model are presented. 

1401 An Application of Remotely Derived Climatological Fields for Risk Assessment of Vector-Borne Diseases: A Spatial Study of Filariasis Prevalence in the Nile Delta, Egypt
M.K. Crombie, R.R. Gillies, R.E. Arvidson, P. Brookmeyer, G.J. Weil, M. Sultan, and M. Harb

Measurements of surface reflectance and surface radiant temperature derived from Landsat TM data were used to create maps of fractional vegetation and surface soil moisture availability. 

1411 Measuring Land-Surface Directional Reflectance with the Along-Track Scanning Radiometer
F.M. Danson, N.A. Higgins, and N.M. Trodd

ATSR-1 and ATSR-2 data for southeastern Spain contain both spectral and directional information on land cover.  

1419 Accuracy of Road Density Estimates Derived from USGS DLG Data for Use in Environmental Applications
Timothy G. Wade, James D. Wickham, and David F. Bradford

A three-part weight-of-evidence approach is used to evaluate accuracy of road density estimates based on 1:100,000-scale USGS DLG data at different spatial scales. 

1427 Query Optimization for a Distributed Geographic Information System
Fangju Wang

A Petri net-based strategy-modeling method is described that is aimed at facilitating strategy generation and cost estimation. 

Announcements
1360 Dues Reminder Notice
1378 PE&RS Special Issue — Call for Papers
1410 ASPRS DC2000 — Annual Conference  

Columns & Updates
1341 The National Spatial Data Council — Update
1347 Open GIS  — Update
1355 Grids & Datums — Argentina
1364 Softcopy
1366 Industry News

Departments
1370 Corporate Descriptions
1371 Who’s Who in ASPRS
1372 Sustaining Members
1374 New Members
1374 Index to Advertisers
1388 Instructions to Authors
1400 Forthcoming Articles
1461 Calendar
1462 Classifieds
1465 Bookstore
1469 Professional Directory
1473 Membership Application

1999 PE&RS Indices
1439 Subject Index
1454 Author Index

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