William Stefanov
Associate International Space Station (ISS) Program Scientist, Earth Observations, ISS Program Science Office, NASA Johnson Space Center
Astromaterials Research and Exploration Science Directorate/KX
NASA Johnson Space Center
2101 NASA Parkway
Houston, TX 77058
USA
Titles
- Associate International Space Station (ISS) Program Scientist, Earth Observations, ISS Program Science Office, NASA Johnson Space Center
Biography
William Stefanov is the Associate International Space Station (ISS) Program Scientist for Earth Observations in the ISS Program Science Office at NASA Johnson Space Center (JSC). He works with the international partners and instrument science/operation teams to coordinate collection, distribution, and analysis of remotely sensed data from the ISS in response to catastrophic events such as volcanic eruptions, earthquakes, and flooding; and provides subject matter expertise to the ISS Program, NASA Science Mission Directorate, and Center for the Advancement of Science in Space (CASIS).
As NASA lead for the Earth Science and Remote Sensing Unit in the Astromaterials Research and Exploration Science Directorate at JSC, he oversees a group of specialists providing logistical support to the ISS program for NASA remote sensing assets on the ISS; operation and management of the Crew Earth Observations Facility on the ISS; and engaging in collaborative basic and applied research efforts focused on the Galveston Bay estuary and larger Gulf of Mexico with regional academic institutions, agencies, and other stakeholders. Dr. Stefanov also trains International Space Station astronauts in various Earth Science topics, and conducts research on land surface processes using remotely sensed data. His research interests include the use of visible through microwave remote sensing techniques to investigate urban and peri-urban geology/geohazards, climatology, and ecology.
Education
- PhD, Arizona State University, 2000
- MS, Arizona State University, 1992
- BS, University of Massachusetts-Lowell, 1988
Expertise
Journal Articles
2016
Jenerette, G. D., S. L. Harlan, A. Buyantuyev, W. L. Stefanov, J. Declet-Barreto, B. L. Ruddell, S. W. Myint, S. Kaplan and X. Li. 2016. Micro-scale urban surface temperatures are related to land-cover features and residential heat related health impacts in Phoenix, AZ USA. Landscape Ecology 31(4):745-760. DOI: 10.1007/s10980-015-0284-3. (link )
2011
Jenerette, G. D., S. L. Harlan, W. L. Stefanov and C. A. Martin. 2011. Ecosystem services and urban heat riskscape moderation: Water, green spaces, and social inequality in Phoenix, USA. Ecological Applications 21(7):2637-2651. DOI: 10.1890/10-1493.1. (link )
2009
Golden, J. S., W. Chuang and W. L. Stefanov. 2009. Enhanced classification of engineering paved surfaces for urban systems modeling. Earth Interactions Journal 13(5):1-18. DOI: 10.1175/2009E1274.1.
2008
Harlan, S. L., A. J. Brazel, G. D. Jenerette, N. S. Jones, L. Larsen, L. Prashad and W. L. Stefanov. 2008. In the shade of affluence: The inequitable distribution of the urban heat island. Research in Social Problems and Public Policy 15:173-202. (link )
Wentz, E. A., D. Nelson, A. Rahman, W. L. Stefanov and S. S. Roy. 2008. Expert system classification of urban land use/cover for Delhi, India. International Journal of Remote Sensing 29(15):4405-4427. DOI: 10.1080/01431160801905497. (link )
2007
Jenerette, G. D., S. L. Harlan, A. J. Brazel, N. S. Jones, L. Larsen and W. L. Stefanov. 2007. Regional relationships between surface temperature, vegetation, and human settlement in a rapidly urbanizing ecosystem. Landscape Ecology 22(3):353-365. (link )
2006
Harlan, S. L., A. J. Brazel, L. Prashad, W. L. Stefanov and L. Larsen. 2006. Neighborhood microclimates and vulnerability to heat stress. Social Science & Medicine 63(11):2847-2863. DOI: 10.1016/j.socscimed.2006.07.030. (link )
Wentz, E. A., W. L. Stefanov, C. Gries and D. Hope. 2006. Land use and land cover mapping from diverse data sources for an arid urban environments. Computers, Environment and Urban Systems 30(2006):320-246. (link )
2005
Grossman-Clarke, S., J. A. Zehnder, W. L. Stefanov, Y. Liu and M. A. Zoldak. 2005. Urban modifications in a mesoscale meteorological model and the effects on surface energetics in an arid metropolitan region. Journal of Applied Meteorology 44(9):1281-1297. (link )
Stefanov, W. L. and M. Netzband. 2005. Assessment of ASTER land cover and MDIS NDVI data at multiple scales for ecological characterization of an arid urban center. Remote Sensing of Environment 99(1-2):31-43. DOI: 10.1016/j.rse.2005.04.024. (link )
2004
Hawkins, T. W., A. J. Brazel, W. L. Stefanov, W. Bigler and E. M. Saffell. 2004. The role of rural vulnerability in urban heat island determination for Phoenix, Arizona. Journal of Applied Meterology and Climatology 43(3):476–486. DOI: 10.1175/1520-0450(2004)043<0476:TRORVI>2.0.CO;2. (link )
Shochat, E., W. L. Stefanov, M. E. Whitehorse and S. H. Faeth. 2004. Urbanization and spider diversity: Influences of human modification of habitat structure and productivity. Ecological Applications 14(1):268-280. DOI: 10.1890/02-5341. (link )
2003
Stefanov, W. L., M. S. Ramsey and P. R. Christensen. 2003. Identification of fugitive dust generation, transport, and deposition areas using remote sensing. Environmental & Engineering Geoscience 9(2):151-165. DOI: 10.2113/?9.2.151. (link )
2001
Stefanov, W. L. and P. R. Christensen. 2001. Classification of global urban centers using ASTER data: Preliminary results from the Urban Environmental Monitoring Program. American Geophysical Union EOS Transactions 82(20):10-11. (link )
Stefanov, W. L., M. S. Ramsey and P. R. Christensen. 2001. Monitoring urban land cover change: An expert system approach to land cover classification of semiarid to arid urban centers. Remote Sensing of Environment 77(2):173-185. DOI: 10.1016/S0034-4257(01)00204-8. (link )
2000
Christensen, P. R., J. L. Bandfield, V. E. Hamilton, D. A. Howard, M. D. Lane, J. L. Piatek, S. W. Ruff and W. L. Stefanov. 2000. A thermal emission spectral library of rock-forming minerals. Journal of Geophysical Research 105(E4):9735-9739. DOI: 10.1029/1998JE000624. (link )
1999
Stefanov, W. L. and P. R. Christensen. 1999. Comparative analysis of soil development on semiarid hillslopes using linear deconvolution of thermal infrared multispectral scanner (TIMS) data. American Geophysical Union EOS Transactions 80(46):442.
Books
2007
Netzband, M., W. L. Stefanov and C. L. Redman eds. 2007. Applied remote sensing for urban planning, governance and sustainability. Springer-Verlag. Berlin Heidelberg.
Book Chapters
2011
Grossman-Clarke, S., W. L. Stefanov and J. A. Zehnder. 2011. Urban weather, climate and air quality modeling: Increasing resolution and accuracy using improved landscape characterization. Pp. 305-319 In: Yang, X. ed., Urban Remote Sensing: Monitoring, Synthesis and Modeling in the Urban Environment. John Wiley and Sons Ltd.
2010
Stefanov, W. L. and M. Netzband. 2010. Characterization and monitoring of urban/peri-urban ecological function and landscape structure using satellite data. In: Jurgens, C. and T. Rashed eds., Remote Sensing of Urban and Suburban Areas. Kluwer Academic Publishers, Dordrecht/Boston/London.
2009
Wentz, E. A., W. L. Stefanov, M. Netzband, M. S. Moller and A. J. Brazel. 2009. The urban environmental monitoring/100 cities project: Legacy of the first phase and next steps. Pp. 191-204 In: Gamba, P. and M. Herold eds., Global Mapping of Human Settlement: Experiences, Datasets, and Prospects. CRC Press. Boca Raton, London, New York.
2008
Shochat, E., W. L. Stefanov, M. E. Whitehouse and S. H. Faeth. 2008. Urbanization and spider diversity: Influences of human modification of habitat structure and productivity. In: Marzluff, J. M., E. Shulenberger, W. Endlicher, M. Alberti, G. Bradley, C. Ryan, U. Simon and C. ZumBrunnen eds., Urban Ecology. Springer. Boston, MA.
2007
Netzband, M., C. L. Redman and W. L. Stefanov. 2007. Remote sensing as a tool for urban planning and sustainability. Pp. 1-23 In: Netzband, M., W. L. Stefanov and C. L. Redman eds., Applied Remote Sensing for Urban Planning, Governance and Sustainability. Springer-Verlag. Berlin Heidelberg.
Stefanov, W. L. and A. J. Brazel. 2007. Challenges in characterizing and mitigating urban heat islands: A role for integrated approaches including remote sensing. In: Netzband, M. and W. L. Stefanov eds., Applied Remote Sensing for Urban Planning, Governance and Sustainability. Springer-Verlag.
Stefanov, W. L. and A. J. Brazel. 2007. Challenges in characterizing and mitigating urban heat islands: A role for integrated approaches including remote sensing. Pp. 219-223 In: Netzband, M. and W. L. Stefanov eds., Applied Remote Sensing for Urban Planning, Governance and Sustainability. Springer-Verlag. Berlin Heidelberg.
Stefanov, W. L., M. Netzband, M. S. Moeller, C. L. Redman and C. Mack. 2007. Phoenix, Arizona, USA: Applications of remote sensing in a rapidly urbanizing desert region. Pp. 137-164 In: Netzband, M., W. L. Stefanov and C. L. Redman eds., Applied Remote Sensing for Urban Planning, Governance and Sustainability. Springer-Verlag. Berlin Heidelberg.
2003
Netzband, M. and W. L. Stefanov. 2003. Assessment of urban spatial variation using ASTER data. Pp. 138-143 In: Jurgens, C. ed., Remote Sensing of Urban Areas. The International Archives of the Photogrammetry, Remote Sensing, and Spatial Information Sciences. Regensburg, Germany.
Stefanov, W. L., J. A. Robinson and S. A. Spraggins. 2003. Vegetation measurements from digital astronaut photography. Pp. 185-189 Remote Sensing of Urban Areas. The International Archives of the Photogrammetry, Remote Sensing, and Spatial Information Sciences. Regensburg, Germany.
Posters
2006
Gries, C., D. Hope, N. B. Grimm, S. H. Faeth, C. A. Martin, P. S. Warren, J. Hutchins, C. L. Redman, W. L. Stefanov, M. S. Moeller and J. W. Edmonds. 2006. Long-term monitoring data at CAP. Poster presented at the 19 January 2006 CAP LTER 8th Annual Poster Symposium, Global Institute of Sustainability, Arizona State University, Tempe, AZ. (link )
2004
Grossman-Clarke, S., J. A. Zehnder, W. L. Stefanov, D. Hope and H. J. Fernando. 2004. Effects of land cover modifications in mesoscale meterological and air quality models in the Phoenix metropolitan area. Poster presented at the 23 February 2004 Sixth Annual CAP LTER Poster Symposium. Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
Harlan, S. L., A. J. Brazel, D. Jenerette, N. S. Jones, L. Larsen, L. Preshad and W. L. Stefanov. 2004. Neighborhood ecosystems: Human-climate interactions in a desert metropolis. Poster presented at the 23 February 2004 Sixth Annual CAP LTER Poster Symposium, Center for Environmental Studies, Arizona State University. Tempe, AZ. (link )
Netzband, M. and W. L. Stefanov. 2004. Remote sensing and landscape metrics for global urban ecological monitoring. Poster presented at the 23 February 2004 Sixth Annual CAP LTER Poster Symposium, Center for Environmental Studies, Arizona State University. Tempe, AZ. (link )
Prashad, L., W. L. Stefanov, A. J. Brazel and S. L. Harlan. 2004. Defining temperature and vegetation connections at neighborhood and regional scales in Phoenix, Arizona, using remotely sensed and ground-based measurements. Poster presented at the 23 February 2004 Sixth Annual CAP LTER Poster Symposium, Center for Environmental Studies, Arizona State University. Tempe, AZ. (link )
2003
Grossman-Clarke, S., D. Hope, S. Lee, H. J. Fernando, P. G. Hyde, W. L. Stefanov and N. B. Grimm. 2003. Modeling temporal and spatial characteristics of nitrogen dry deposition in the Phoenix metropolitan area. Presented at February 19, 2003, CAP LTER Fifth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
Grossman-Clarke, S., J. A. Zehnder and W. L. Stefanov. 2003. Effects of urban land cover modifications in a mesoscale meteorological model on surface temperature and heat fluxes in the Phoenix metropolitan area. Presented at February 19, 2003, CAP LTER Fifth Annual Poster Symposium. Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
Hope, D., S. Grossman-Clarke, S. Lee, H. J. Fernando, P. G. Hyde, W. L. Stefanov and N. B. Grimm. 2003. The importance of dry deposition to the nitrogen mass balance of an arid urban ecosystem. Presented at February 19, 2003, CAP LTER Fifth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
Jones, T., A. J. Brazel, C. Eisinger, S. L. Harlan, B. C. Hedquist, S. E. Grineski, D. Jenerette, L. Larsen, M. A. Lord, J. Parker, L. Prashad, N. J. Selover, W. L. Stefanov and D. Zeigler. 2003. Neighborhood ecosystems: Human-vegetation-climate interactions in a desert metropolis. Poster presented February 19, 2003, CAP LTER Fifth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
Netzband, M. and W. L. Stefanov. 2003. Remote sensing and landscape metrics for global urban ecological monitoring. Presented at February 19, 2003, CAP LTER Fifth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
Prashad, L., W. L. Stefanov, A. J. Brazel and S. L. Harlan. 2003. Defining temperatures and vegetation connections at neighborhood and regional scales in Phoenix, Arizona, using remotely sensed and ground based measurements. Poster presented at 8-12 December 2003, AZENet Conference, Casa Grande, AZ.
Stefanov, W. L. 2003. Assessment of landscape fragmentation associated with urban centers using ASTER data. Presented at February 19, 2003, CAP LTER Fifth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
2002
Grossman-Clarke, S., D. Hope, P. G. Hyde, W. L. Stefanov, H. J. Fernando and N. B. Grimm. 2002. Assessment of temporal and spatial characteristics of nitrogen dry deposition in the Phoenix metropolitan area. Poster presented at January 17, 2002, CAP LTER Fourth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
Wentz, E. A., J. R. Anderson, W. L. Stefanov and J. M. Briggs. 2002. Desert fire history and effects on the Phoenix, Arizona, metropolitan area. Poster presented at January 17, 2002, CAP LTER Fourth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )
2001
Hope, D., S. Grossman-Clarke, W. L. Stefanov and P. G. Hyde. 2001. Modeling nitrogen dry deposition inputs to the CAP LTER urban ecosystem. Poster presented at the January 19, 2001, CAP LTER Third Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe AZ. (link )
2000
Stefanov, W. L. and P. R. Christensen. 2000. Comparison analysis of soil development on semiarid hillslopes using linear deconvolution of Thermal Multispectral Scanner (TIMS) data. Poster presented at 19 January 2000, CAP LTER Second Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ.
Stefanov, W. L., M. S. Ramsey and P. R. Christensen. 2000. Monitoring urban land cover change: An expert system approach to land cover classification of the Phoenix metropolitan area. Poster presented at 2-4 August 2000, Long-Term Ecological Research: Unifying Principles and Global Applications, LTER All Scientists Meeting, Snowbird, UT.
1999
Stefanov, W. L., M. S. Ramsey and P. R. Christensen. 1999. Land cover classification of Maricopa County using Landstat thematic mapper data. Poster presented at the 22 January 1999, CAP LTER First Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe.
Presentations
2007
Brazel, A. J., S. L. Harlan, W. L. Stefanov, D. Jenerette, L. Larsen and N. S. Jones. 2007. Shaping of neighborhood microclimates. Presented at the August 6-10, 2007 Ecological Restoration in a Changing World at the 92 Annual Meeting of the Ecological Society of America in conjunction with the Society for Ecological Restoration 18th International Conference, San Jose, CA.
2006
Harlan, S. L., A. J. Brazel, L. Prashad, W. L. Stefanov and L. Larsen. 2006. Neighborhood environments and vulnerability to heat stress. Presented August 11, 2006 at the 101st annual meeting of the American Sociological Association, Montreal, Canada.
Harlan, S. L., A. J. Brazel, L. Preshad, W. L. Stefanov and L. Larsen. 2006. Neighborhood environments and vulnerability to heat stress. Presented at the August 6-11 2006 91st Annual Meeting of the American Sociological Association, Montreal, Canada.
2004
Harlan, S. L., A. J. Brazel, W. L. Stefanov, L. Larsen, S. E. Grineski, N. S. Jones, J. Parker and L. Prashad. 2004. Inequality for the 21st century: Social class, ethnicity, and vulnerability to climate change. Presentation 15-18 April 2004 at the Pacific Sociological Association Annual Meeting, San Francisco, CA.
Harlan, S. L., A. J. Brazel, W. L. Stefanov, L. Prashad, S. E. Grineski, T. Jones and J. Parker. 2004. An interdisciplinary investigation of social class, ethnicity, and exposure to urban climate change. Presentation at the Globalization and the Environmental Justice Movement Symposium, Tucson, AZ.
Netzband, M. and W. L. Stefanov. 2004. Urban land cover and spatial variation observation using ASTER satellite image data. Presentation at the 14-17 June 2004, ASTER Science Team Meeting, Tokyo, Japan.
2003
Netzband, M. and W. L. Stefanov. 2003. Remote sensing and landscape metrics for global ecological monitoring. Presented at 8 March 8 2003 AAG Annual Meeting, New Orleans, LA.
Stefanov, W. L. 2003. Geological remote sensing in the LTER network: Terra cognita?. Third Long Term Ecological Research Network Mini-Symposium, National Science Foundation, Washington, DC.
Stefanov, W. L. and M. Netzband. 2003. Characterization and monitoring of urban/peri-urban landscapes using ASTER. 24th ASTER Science Team Meeting, Tokyo, Japan.
2002
Applegarth, M. T. and W. L. Stefanov. 2002. Use of Thermal Infrared Multispectral Scanner (TIMS) imagery to interpret particule size on desert hillslopes. American Association of Geographers Annual Meeting Abstracts.
Arrowsmith, R., G. R. Keller, L. Prashad, M. Diaz, W. L. Stefanov, C. Eisinger, M. Fouch, S. J. Reynolds, S. M. Richards and P. A. Pearthree. 2002. A geospatial data systems for the transition between the Colorado Plateau and Basin and Range Provinces: An essential tool for basic and applied research in earth science and urban ecology.
Baker, L. A. and W. L. Stefanov. 2002. Information engineering: A new paradigm for environmental management in the 21st century. Presented (invited) at 17-19 April 2002, Minnesota Water Conference, St. Cloud, MN.
Grossman-Clarke, S., D. Hope, S. M. Lee, H. J. Fernando, P. G. Hyde, W. L. Stefanov and N. B. Grimm. 2002. Modeling temporal and spatial characteristics of nitrogen dry deposition in the Phoenix metropolitan area. Fall Meet. Suppl., Abstract B22B-0755, American Geophysical Union.
Hope, D., S. Grossman-Clarke, S. M. Lee, H. J. Fernando, P. G. Hyde, W. L. Stefanov and N. B. Grimm. 2002. The importance of dry deposition to the nitrogen mass balance of an arid urban ecosystem. Fall Meet. Suppl. Abstract B22B-0756, American Geophysical Union.
Stefanov, W. L. 2002. Assessment of landscape fragmentation associated with urban centers using ASTER data. Abstract B61C-0739, American Geophysical Union.
Stefanov, W. L. 2002. Ecological remote sensing at the CAP LTER site. Presented at 5-7 August 2002, Arizona Geographic Information Council Annual Meeting, Mesa, AZ.
Stefanov, W. L. 2002. The ASTER urban environmental monitoring project: Progress and current results. Presented to the 14-18 January 2002, 21st ASTER Science Team Meeting, Pasadena, CA.
Stefanov, W. L. 2002. The ASTER urban environmental monitoring project: Progress update. Presented at 21-23 May 2002, 22nd ASTER Science Team Meeting, Tokyo, Japan.
2001
Keller, G. R., R. Arrowsmith, M. Fouch, A. Gates, N. Hicks, V. Kreinovich, K. Mickus, S. J. Reynolds, S. Richard and W. L. Stefanov. 2001. The southern Colorado Plateau and adjacent Basin and Range Province: A testbed for geoinformatics and data integration. Presented at the Geological Society of America Abstracts with Programs, Annual Meeting, Abstract 72-65.
Stefanov, W. L. 2001. Desert geology. Presented at March 2001, Design with the Desert Conference, Arizona State University, Tempe.
Stefanov, W. L. 2001. Global urban center classification. Presented at 21-24 May 2001, ASTER Science Team Meeting, Tokyo, Japan.
Stefanov, W. L. 2001. Potential applications of remote sensing to assessments of road surface condition. Presented at April 2001, 50th Annual Roads and Streets Conference, Arizona Consulting Engineers Association, Tucson.
Stefanov, W. L. and M. T. Applegarth. 2001. Geomorphic analysis of semiarid landforms using mid-infrared spectroscopy and remote sensing.
Stefanov, W. L., P. R. Christensen and M. S. Ramsey. 2001. Remote sensing of urban ecology at regional and global scales: Results from the Central Arizona - Phoenix LTER site and ASTER Urban Environmental Monitoring Program. (on supplemental CD-ROM).
Stefanov, W. L., M. S. Ramsey and P. R. Christensen. 2001. Mapping of fugitive dust generation, transport, and deposition in the Nogales, Arizona, region using Enhanced Thematic Mapper Plus (ETM+) data.
2000
Ramsey, M. S. and W. L. Stefanov. 2000. The Advanced Spaceborne Thermal Emission and Reflectance Radiometer (ASTER) Urban Environmental Monitoring Program: Local results using airborne MASTER data from Phoenix, AZ. Invited, November 2000, ERIM 14th Applied Geol. Remote Sensing Conference (MASTER Special Session).
Stefanov, W. L., M. S. Ramsey and P. R. Christensen. 2000. Monitoring urban land cover change: An expert system approach to land cover classification of the Phoenix metropolitan area. August 6-10, Long-Term Ecological Research National All Scientist Meeting at Ecological Society of America Meeting, Snowbird, UT.
1999
Ramsey, M. S., W. L. Stefanov and P. R. Christensen. 1999. Monitoring world-wide urban land cover changes using ASTER: Preliminary results from the Phoenix, AZ, LTER site. Proceedings of the 13th Applied Geol. Remote Sensing Conference, Vancouver, British Columbia, Canada.
Conference Papers
2004
Grossman-Clarke, S., J. A. Zehnder and W. L. Stefanov. 2004. Urban modifications in a mesoscale meteorological model and the effects on surface energetics in an arid metropolitan region. Vancouver, BC, Canada.
Netzband, M. and W. L. Stefanov. 2004. Urban land cover and spatial variation observation using ASTER and MODIS satellite image data.
Stefanov, W. L., L. Prashad, C. Eisinger, A. J. Brazel and S. L. Harlan. 2004. Investigation of human modifications of landscape and climate in the Phoenix, Arizona, metropolitan area using MASTER data. Pp. 1339-1347 Istanbul, Turkey. Invited presentation at the International Society for Photogrammetry and Remote Sensing 20th Quadrennial Conference. . (link )
2001
Wentz, E. A., J. R. Anderson, W. L. Stefanov and J. M. Briggs. 2001. Desert fire history and effects on the Phoenix, Arizona, metropolitan area. Pp. 154-158 Rome, Italy.
Magazine Articles
2002
Stefanov, W. L. 2002. Remote sensing of urban ecology at the Central Arizona - Phoenix Long Term Ecological Research site. Aridlands Newsletter. 51(May/June):10. (link )
Maps
2000
Stefanov, W. L. Published. 2000. 1985, 1990, 1993, 1998 land cover maps of the Phoenix, Arizona, metropolitan area.. Geological Remote Sensing Laboratory, Department of Geological Sciences, Arizona State University.
Thesis (PhD)
2000
Stefanov, W. L. 2000. Investigation of hillslope processes and land cover change using remote sensing and laboratory spectroscopy. PhD dissertation. Arizona State University. (link )