David Nagel
Spatial Analyst and Physical Scientist at the Boise Aquatic Sciences Laboratory

email: dnagel [at]fs.fed.us
phone: 208-373-4397

Professional Interests

Briefing Papers

Presentations and Posters

Select Publications

• Spatial analysis support for watershed and aquatics research
• Remote sensing analysis
• Technology transfer through data production and distribution
• Emerging spatial concepts in catchment science and riverscape theory
• Digital spatial constructs for representing stream networks and connected landscapes

Goode, J. R., J. M. Buffington, D. Tonina, D. J. Isaak, R. F. Thurow, S. Wenger, D. Nagel, C. Luce, D. Tetzlaff, and C. Soulsby. 2013. Potential effects of climate change on streambed scour and risks to salmonid survival in snow-dominated mountain basins. Hydrologic Processes. 27(5): 750-765.

Nagel, D., Buffington, J.M., Luce, C., 2011.  A Simple Drainage Enforcement Procedure for Estimating Catchment Area Using DEM Data. NW GIS User Conference, Oct. 17-21, Boise, ID. 

Nagel, D., Buffington, J.M., Isaak, D., 2010. Estimating Stream Gradient Using NHD Stream Lines and DEM Data. ESRI International User Conference, July 12-16, San Diego, CA.

Nagel, D., D. Isaak, B. Rieman, S. Adams, D. Horan, and C. Luce, 2010. A Map of Thermally Suitable Bull Trout Habitat: Current and Projected Climate Conditions Across the Interior Columbia Basin. ESRI International User Conference, July 12-16, San Diego, CA.

Nagel, D., 2010. Digital Streams at the Landscape Scale, Linking Physical Characteristics to Biology: Channel Gradient, Valley Confinement, and Stream Temperature. AWAE Seminar, February 16, Boise, ID.

Nagel, D., C. Luce., D. Isaak, and B. Rieman, 2008. Stream Temperature and Thermal Networks, A GIS and Remote Sensing Approach to Assess Aquatic Habitat. The Twelfth Biennial USDA Forest Service Remote Sensing Applications Conference, 2008. April 15-17, Salt Lake City, UT. Conference presentation.

Nagel, D., 2007. Comparison of Two Methods for Identifying Low Gradient, Unconfined Streams and Valley Bottom Extent, In Support of Stream Temperature Modeling Associated with Fire Effects. FS/BLM GeoSpatial 2007 Conference, Portland, OR, May 7 - 11. Poster presentation.

Nagel, D., 2005. Estimating Valley Confinement with DEM Data to Support Cutthroat Trout Research. 2005 Resource Management Tools and Geospatial Conference, Phoenix, Arizona, April 18 – 22.

Nagel, D., C. Luce, and B. Gutiérrez Teira, 2004. Use of Thematic Mapper Satellite Imagery, Hemispherical Canopy Photography, and Digital Stream Lines to Predict Stream Shading in the Boise River Basin. The 19th Annual Northwest GIS Users Conference, Sun Valley, Idaho, September 26-29, 2004.

Nagel, D., C. Luce, J. King, B. Rieman and J. Dunham, 2003. Debris Flow Mapping Through Time, Data Management using ArcGIS and Implications for Fish Research. FS Geospatial ’03, Colorado Springs, CO.

Wenger, S.J., D.J. Isaak, J.B. Dunham, K.D. Fausch, C.H. Luce, H.M. Neville, B.E. Rieman, M.K. Young, D. E. Nagel, D. L. Horan, G. L. Chandler, 2011.  Role of climate and invasive species in structuring trout distributions in the Interior Columbia Basin.  In review, Canadian Journal of Fisheries and Aquatic Sciences. 68:1-21.

Isaak, D.J., C. Luce, B.E. Rieman, D. Nagel, E. Peterson, D. Horan, S. Parkes, and G. Chandler. 2010. Effects of climate change and wildfire on stream temperatures and salmonid thermal habitat in a mountain river network. Ecological Applications: Vol. 20, No. 5, pp. 1350-1371. doi: 10.1890/09-0822.1. | Appendices |

McKean, J., Nagel, D., Tonina, D., Bailey, P., Wright, C.W., Bohn, C., Nayegandhi, A., 2009. Remote sensing of channels and riparian zones with a narrow-beam aquatic-terrestrial lidar. Remote Sensing 1 (4) 1065-1096.

Rieman, D.E., Isaak, D., Adams, S., Horan, D., Nagel, D., Luce, C., and D. Myers. 2007. Anticipated climate warming effects on bull trout habitats and populations across the Interior Columbia River Basin. Transactions of the American Fisheries Society 136:1552-1565.

Ferguson, Sue A, McKay, Steven J., Nagel, David E., Piepho, Trent, Rorig, Miriam L., Anderson, Casey, Kellog, Lara, 2003. Assessing Values of Air Quality and Visibility at Risk from Wildland Fires. Research Paper PNW-RP-550. USDA Forest Service, Pacific Northwest Research Station, April 2003.

Reese, H., Lillesand, T., Nagel, D., Stewart, J., Goldmann, R., Simmons, T., Chipman, J., and Tessar, P., 2002. Statewide Land Cover Derived from Multi-seasonal Landsat TM Data: A Retrospective of the WISCLAND Project. Remote Sensing of Environment 82(2-3):224-237.

Research Scientists