PE&RS October 1997

Cover Image

These images, generated from NASA's Total Ozone Mapping Spectrometer (TOMS), illustrate the October mean total ozone from 1979-1994 and 1996. Proper long-term archiving and management of environmental data ensure that present and future scientists can understand the current environment and do retrospective studies. This data set was created by NASA's Goddard Space Flight Center and is archived at the Distributed Active Archive Center (DAAC).  Atmospheric products from this and other related data sets are now available free of charge to the scientific and educational communities.

Highlight Article

1155 Overview of Archival Practices and Issues (Adobe PDF 2.18Mb)
Bruce Ambacher

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

1170 Foreword (Adobe PDF 250Kb)
Amelia M. Budge

1171 Digital Reproduction of Historical Aerial Photographic Prints for Preserving a Deteriorating Archive
Donald E. Luman, Christopher Stohr, and Leta Hunt

A pilot project demonstrated that high-quality, precision scanning of historical aerial photography is an appealing alternative to traditional methods for reproduction.  

1181 Efficient Handling of Large Digital Images in Geographic Information Systems
Fayez S. Shahin

The methodology is based on partitioning large digital images into smaller tiles and using a hierarchical image compression algorithm.

1185 A Machine-Learning Approach to Automated Knowledge-Base Building for Remote Sensing Image Analysis with GIS Data
Xueqiao Huang and John R. Jensen

Building a knowledge base for a rule-based expert system for remote sensing image analysis with GIS data is easier than using the conventional knowledge acqusition approach.  

1195 Measuring Uncertainty in Class Assignment for Natural Resource Maps Under Fuzzy Logic
A-Xing Zhu

The uncertainty of fuzzy belonging can be approximated by an entropy measure of membership distribution or by a measure of membership residual.  

1203 Building the Estimation Model of Digitizing Error
Huang Youcai and Liu Wenbao

A stochastic stationary observation series of digitizing error may be generated by adopting a backward difference process (filtering the trend motion from the stochastic series).  

1211 Spatial Error Analysis of Species Richness for a Gap Analysis Map
Denis J. Dean, Kenneth R. Wilson, and Curtis H. Flather

Evaluating the effect of omission and commission errors on species distribution using Monte Carlo simulations and the Oregon State Gap Analysis database.  

1219 GIS-Based Evaluation of Salmon Habitat in the Pacific Northwest
Ross S. Lunetta, Brian L. Cosentino, David R. Montgomery, Eric M. Beamer, and Timothy J. Beechie

Reach slope and forest seral stage provided a coarse indicator of channel condition across the region.  

1231 Using Bayesian Statistics, Thematic Mapper Satellite Imagery, and Breeding Bird Survey Data to Model Bird Species Probability of Occurrence in Maine
Jeffrey A. Hepinstall and Steven A. Sader

The relationships between bird species survey data and the spectral values of Landsat Thematic Mapper bands 4 and 5 as well as a derived texture measure were used to build conditional probabilities for input into Bayes’ Theorem.  

Technical Note
Thomas M. Holm

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