* Monitoring of natural changes to the training 
areas was possible with multi-date satellite 
imagery. Monitoring of training impacts may be 
possible with more ground truth on the extent and 
intensity of training. 
* Soil dominates the spectral signature of this 
terrain. The amount of vegetation cover modulates 
the soil signature. In order to harness this physical 
effect for quantitative measurements, supportive 
information on levels of impact and maneuver data 
will be required. 
9. ACKNOWLEDGMENTS 
This study was one portion of a larger 
project (Environmental Monitoring Practicum, 
1995) which is indebted to a number of individuals 
and institutions. Expert guidance and support was 
given by Drs. Frank Scarpace, Peter Weiler, and 
Mark Mackenzie, Ms. Marcia Verhage, Ms. 
Nancy Podger, Mr. Larry Siedl, and Mr. Raad 
Saleh, all of the Environmental Remote Sensing 
Center. Field and moral support was freely 
provided by the staff of Fort Bliss, particularly 
Mr. Joe Brandon and Mr. Kevin Von Finger. 
Financial and technical support was provided by 
Mr. Scott Tweddale of USACERL and Mr. Paul 
Thies of the AEC. 
10. REFERENCES 
Budd, L.F., R.B. Arend, J.W. Hurst, & V.H. 
Anderson. 1979. Fort Bliss Environmental 
Analysis and Impact Assessment (EIS No. DARK 
-07-78-c- 0151). Prepared for Environment 
Office-Facilities Engineers( Fort Bliss, Texas) by 
Photographic Interpretation (Hanover, New 
Hampshire). 
Chavez, P.S., & J.A. Bowell. 1988. Comparison of 
the spectral Information Content of Landsat 
Thematic Mapper and SPOT for Three Different 
Sites in the Arizona Region. Photogrammetric 
Engineering and Remote Sensing, 54(2), 
1699-1708. 
Coppin, P., & M.E. Bauer. 1994. Processing of 
Multitemporal Landsat TM Imagery to Optimize 
Extraction of Forest Cover Change Features. IEEE 
Transactions on Geoscience and Remote Sensing, 
32(4), 918-927. 
Dregne, H.E. 1977. Desertification of Arid Lands. 
Economic Geography, 53, 331-332. 
Eckhardt, D.W., J.P. Verdin, & G.R. Lyford. 
1990. Automated Update of an Irrigated Lands 
GIS Using SPOT HVR Imagery. Photogrammetric 
132 
Engineering and Remote Sensing, 56(11), 
1515-1522. 
Environmental Monitoring Practicum. 1995. 
Application of GIS and Remote Sensing for 
Resource Management in the Northern 
Chihuahuan Desert, Environmental Remote 
Sensing Center, University of Wisconsin-Madison. 
Goran, W.D., L.L. Radke, & W.D. Severinghaus. 
1983. An Overview of the Ecological Effects of 
Tracked Vehicles on Major U.S. Army 
Installations (Technical Report No. N-142). 
USACERL. 
Graetz, R.D., & M.R. Gentle. 1982. The 
Relationships Between Reflectance in the Landsat 
Wavebands and the Composition of an Australian 
Semi-Arid Shrub Rangeland. Photogrammetric 
Engineering and Remote Sensing, 48(11), 
1721-1730. 
Jensen, J.R. 1986. Introductory Digital Image 
Processing. Englewood Cliffs, NJ: Prentice Hall. 
Lillesand, T.M., & R.W. Kiefer. 1994. Remote 
Sensing and Image Interpretation (Third ed.). New 
York: Wiley. 
Marston, R.A. 1986. Maneuver-caused Wind 
Erosion Impacts, South Central New Mexico. In 
Aeolian Geomorphology: 7th Binghampton 
Geomorphology Symposium. 
Peterson, F.F. 1981. Landforms of the Basin and 
Range Province-Defined for Soil Survey 
(Technical Bulletin No. 28). Nevada Agricultural 
Experiment Station, Reno, Nevada. 
Shaw, R.B., & V.E. Diersing. 1990. Tracked 
Vehicle Impacts on Vegetation at the Pinyon 
Canyon Maneuver Site, Colorado. Journal of 
Environmental Quality, 19, 234-243. 
Smith, M.O., S.L. Ustin, J.B. Adams, & AR. 
Gillespie. 1990. Vegetation in Deserts: I. A 
Regional Measure of Abundance from 
Multispectral Images. Remote Sensing of 
Environment, 31(1), 1-26. 
  
Tuttle, M., & G. Griggs. 1987. Soil Erosion and 
Management Recommendations at Three State 
Vehicular Recreation Areas, California. 
Environmental Geology and Water Science, 10(2), 
11-123. 
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