1. Building a GIS Dataset of the Walnut Creek Watershed Sally Holl

2. Outline Objectives Background: SGP Soil Moisture Experiments Why Iowa? Methods used to assemble the dataset Future work

3. Objectives To assemble a geospatial dataset in preparation for SGP01 To use this dataset as a base for field data collection

4. Background: ESE Providing a Global Perspective: NASA's Earth Science Enterprise Goal: To develop understanding of the total Earth system and the effects of natural and human-induced changes on the global environment. http://www.earth.nasa.gov/

5. Background: EOS NASA EOS – Earth Observing System Goal: To observe atmosphere, ocean, and land interactions over long periods of time to see how the Earth functions as a unified system. EOS Aqua Mission

6. Background: Aqua U.S.A: NASA Japan: NASDA

7. Background: Aqua Atmosphere Ocean Land Cryosphere

8. Background: Aqua Land Soil Moisture

9. Remote Sensing of Soil Moisture

10. AMSR: Advanced Microwave Scanning Radiometer

11. Outline Objectives Background: SGP Soil Moisture Experiments Why Iowa? Methods used to assemble the dataset Future work

12. Iowa: Location

13. Walnut Creek: Location

14. Iowa: Land Use Landsat TM Image of the Walnut Creek, Iowa Study Area obtained in July, 1999.

15. Iowa: Land Use Walnut Creek, Iowa Typical Corn Canopy on June 28, 2000.

16. Iowa: Land Use Walnut Creek, Iowa Typical Row Soybeans on June 28, 2000.

17. Outline Objectives Background: SGP Soil Moisture Experiments Why Iowa? Methods used to assemble the dataset Future work

18. Data Collection and Input Political boundaries Watershed boundaries River networks Flight lines Soils Precipitation DEM

19. Data Collection and Input Political boundaries Watershed boundaries River networks Flight lines Soils Precipitation DEM

20. Data Collection and Input Political boundaries Watershed boundaries River networks Flight lines Soils Precipitation DEM

21. Walnut Creek Walnut Creek is part of the South Skunk River Basin USGS Cataloging Unit: 07080105

22. Data Collection and Input Political boundaries Watershed boundaries River networks Flight lines Soils Precipitation DEM

23. Flight lines

26. Data Collection and Input Political boundaries Watershed boundaries River networks Flight lines Soils Precipitation DEM

27. STATSGO http://www.ftw.nrcs.usda.gov/stat_data.html

28. Soil Data http://icss.agron.iastate.edu/

29. Data Collection and Input Political boundaries Watershed boundaries River networks Flight lines Soils Precipitation DEM

30. Precipitation USDA Prism site: http://www.ftw.nrcs.usda.gov/prism/ Boone County Story County June avg.July avg.

31. Data Collection and Input Political boundaries Watershed boundaries River networks Flight lines Soils Precipitation Road network

32. Road Network Iowa Department of Natural Resources Natural Resources Geographic Information System (NRGIS) Library

33. Results Geospatial database that can be queried for useful information about the study site, Walnut Creek.

34. Results: Applications

35. Future Work Add more useful components –Land ownership –Temperature, evapotranspiration –Sampling site points Combine tables Perform spatial analysis to choose sampling sites Record field data

36. Outline Objectives Background: SGP Soil Moisture Experiments Why Iowa? Methods used to assemble the dataset Future work

37. Fin