Terrain modeling and Soil Erosion Simulations for Fort Hood and Fort Polk test areas

Prepared by:

Geographic Modeling and Systems Laboratory, University of Illinois at Urbana-Champaign

Helena Mitasova, Lubos Mitas, William M. Brown, Douglas M. Johnston

for :

U.S. Army Construction Engineering Research Laboratories Dr. Dick Gebhart

Annual Report 1999

Content


1. Introduction.............................................3

2. Methods..................................................4

   2.1 Input data processing................................5

   2.2 Erosion models.......................................8

       2.2.1 USLE...........................................8

       2.2.2 USPED.........................................10

       2.2.3 Process based simulation of water erosion.....11

   2.3 GIS implementation of models........................13

       2.3.1 GRASS5.0......................................13

       2.3.2 ArcView Spatial Analyst.......................15

3. Applications............................................17

   3.1 Fort Hood subwatershed: comparison with Cs137.......17

   3.2 Fort Polk erosion potential.........................20

4. Conclusion and future directions........................21

5. References..............................................22

6. Appendix................................................24

   6.1 Manuals and tutorials

   6.2 Data

   6.3 On-line documents