PE&RS February 2001

Cover Image
This month’s cover features ground-based, 3D LIDAR scanning in and around Pueblo Bonito, Chaco Canyon , New Mexico. Pueblo Bonito was constructed in stages between 850 to 1150 A.D. and was the center of the Chacoan world. Many structures at Chaco Canyon are oriented to solar, lunar and cardinal directions and were surrounded by astronomical markers, communication features and a network of straight roads extending for hundreds of miles in several cases. Precise 3-D models of the Chacoan structures will be used to monitor the buildings for subsidence, cracking and deformation by the National Park Service (www.nps.gov/chcu/). “Terrestrial LIDAR” services were provided by Bohannan Huston, Inc. (www.bhinc.com) of Albuquerque, New Mexico using the Cyrax 2400 laser scanning system. Personnel from the Hopi Indian Tribe collected RTK survey points to be used in geo-referencing the LIDAR scans to the NPS control network. The nominal LIDAR scan resolution varied from 1 to 10cm spacing at various locations throughout the site and each scan point is accurate to 6mm or better at scan depths up to 50m with pulse returns up to 100m. The graduated colors illustrate return intensity values at the sensor. Field operations were completed in less than one day.
Contact Layton Hobbs at Bohannon-Huston Engineering, Albuquerque, New Mexico, 505-823-1000

Introduction

134 Native American uses of Geospatial Technology
Kyle R. Bohnenstiehl and Phillip Johnson Tuwaletstiwa (Hopi)

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

167 Using Geospatial Technologies to Enhance and Sustain Resource Planning on Native Lands
Ray A. Williamson and Jhon Goes In Center

Some of the advantages and hurdles of using GIS, GPS, and remote sensing techniques on the lands of Native Peoples are examined.

171 Mapping Blackfeet Indian Reservation Irrigation Systems with GPS and GIS
Delmar E. Seagle and Larry V. Bagwell

Efficient irrigation system management requires accurate location and condition information for system components.  

179 Riparian Vegetation Mapping and Image Processing Techniques, Hopi Indian Reservation, Arizona
Robert M. Weber and Glenn A. Dunno

Color infrared photography and airborne ATLAS images were utilized to develop a vegetation map and a supervised land-cover classification for the Blue Canyon reach of Moenkopi Wash on the Hopi Reservation, Arizona.

187 NativeView: A Gateway to the Earth for Native Americans
Kenneth D. Bailey and Robert C. Frohn

189 Remote Sensing Analysis of Wild Rice Production Using Landsat 7 for the Leech Lake Band of Chippewa in Minnesota
Kenneth D. Bailey, Robert C. Frohn, Richard A. Beck, and Michael W. Price

Data products were delivered to the Leech Lake Tribe and stored on an image map server as a tool for development of future wild rice management strategies.

193 Native American Remote Sensing Distance Education Prototype (NARSDEP)
Kenneth Bailey, Richard Beck, Robert Frohn, Dave Pleva, Dave Plumer, Michael Price, Robert Krute, Calvin Ramos, and Robert South

The purpose of NARSDEP is to provide remote sensing classes to students of the Leech Lake Tribal College and to tribal government representatives in cooperation with the University of Cincinnati.

Peer-Reviewed Articles — General

199 Evaluating the Accuracy of Digital Orthophoto Quadrangles (DOQ) in the Context of Parcel-Based GIS
Joshua Greenfeld

The DOQ is evaluated for spatial, geometric, radiometric, and mosaicking accuracies, and for its appropriateness for parcel-based GIS.

207 Spring Wheat Classification in an AVHRR Image by Signature Extension from a Landsat TM Classified Image
Alan J. Stern, Paul C. Doraiswamy, and Paul W. Cook

The number of Landsat TM spring wheat pixels in the overlapping AVHRR pixels provided a means for predicting the percentages of spring wheat for each AVHRR class.

213 Detecting the Nature of Change in an Urban Environment: A Comparison of Machine Learning Algorithms
Jonathan Cheung-Wai Chan, Kwok-Ping Chan, and  Anthony Gar-On Yeh

The same procedure of land-cover change detection was implemented using four different machine learning algorithms, and those algorithms were compared based on recognition rates, ease of use, and degree of automation. 

227 An Evaluation of an Off-the-Shelf Digital Close-Range Photogrammetric Software Package
Gang Deng and Wolfgang Faig

A series of measurement tests with different non-metric images were carried out with the off-the-shelf digital close-range photogrammeteric software package PhotoModeler Pro for two different test fields, to investigate the photogrammetric performance of the software, and also the strategies for different practical applications.

Announcements
145 ASPRS Annual Conference —  Gateway to the New Millennium
186 Call for Papers — PE&RS Special Issue on Geospatial Information Technology in Korea
212 Call for Presentations — FIG 2002 Congress
233 Call for Papers — PE&RS Special Issue on Remote Sensing in Human Health 

Columns & Updates
141 Headquarters News
143 Grids & Datums — United Arab Emirates
149 Industry News 

Departments
142 New Members
156 Who’s Who in ASPRS
157 Sustaining Members
159 Index to Advertisers
160 Classifieds
163 Bookstore
170 Instructions to Authors
198 Forthcoming Articles
206 Calendar
235 Professional Directory
239 Membership Application

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