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CALMIT

Center for Advanced Land Management Information Technologies

Ian C. Ratcliffe

Ian Ratcliffe
University of Nebraska-Lincoln
School of Natural Resources
310 Hardin Hall
3310 Holdrege Street
Lincoln, Nebraska 68583-0973

Phone:402.472.6514 Fax:402.472.2946
Email: iratcliffe2@unl.edu

Resume (PDF)








Education

Master's Degree

  • University of Nebraska-Lincoln.
    M.A. Graduate program in Geography, 2005.
    Graduate Advisor: Dr. Geoffrey M. Henebry
    Thesis: Occurence and persistence of hailstreak devegetation zones as observed by synoptic sensors

Bachelor's Degree

  • University of Nebraska-Lincoln.
    B. A. Department of Geography, 2002.

Professional Experience

  • October 2007 – Present, Remote Sensing and GIS Research Specialist, Center for Advanced Land Management Information Technologies.  University of Nebraska-Lincoln.
    Assisting with the development of evapotranspiration maps for parts of Nebraska using surface energy balance models. Quantification of Consumptive Water Use (CWU) of irrigated lands is critical for water rights management, water resources planning, and water regulation.  Water scarcity due to increased use and recurrent droughts elevates the need to effectively manage surface and ground water.  Accurately quantifying CWU enables the prediction of the timing and the spatial extent of potential depletions or gains in both the short-term and in the long-term management of surface and ground water used for irrigated systems.  Application of surface energy balance models to high resolution satellite imagery allows for a cost effective and timely method to estimate evapotranspiration, both temporally and spatially, across the land surface. 

  • June 2005 – September 2007, Remote Sensing and GIS Research Specialist, Center for Advanced Land Management Information Technologies.  University of Nebraska-Lincoln.
    Assisted in the development of a land cover geodatabase for the Platte River Cooperative Hydrology Study (COHYST) as well as for the entire state of Nebraska.  Used Landsat data to generate classification of 2005 agricultural land cover patterns.  http://www.calmit.unl.edu/cohyst/. http://www.calmit.unl.edu/2005landuse/.

  • August 2002 – June 2005.  Graduate research assistant.  Center for Advanced Land Management Information Technologies.  University of Nebraska-Lincoln
    Assisted university faculty and staff with research on:
    • Grassland Ecological Monitoring System (GEMS) project which I assisted university faculty and staff in setting up an ecological forecasting/decision support system to assist in managing forage production and utilization on rangeland, pastureland, and hayland.  GEMS integrates climate, weather, and remote sensing data in archives and in current data streams with a suite of plant canopy growth models for the South Dakota-Nebraska-Kansas region.  http://globalmonitoring.sdstate.edu/GEMS/index.htm.
    • Kazakhstan Land Cover Dynamics Project in which I employed declassified intelligence satellite photographs in conjunction with current QuickBird imagery for the cities of Astana and Almaty to investigate urban land cover dynamics.  Image time-series were generated and urban change was quantified using ENVI and ArcGIS. 
    • Project Hailstreak where, for my thesis work, I investigated the relationship between hail occurrences and the appearance and persistence of hailstreaks in composite AVHRR and MODIS NDVI image time series.  Hailstreaks were identified from NDVI difference images with point locations of hail reports overlaid using ArcGIS
  • May 2002 – August 2002.  Undergraduate field assistant – hyperspectral data collection.  Center for Advanced Land Management Information Technologies.  University of Nebraska-Lincoln. 
    Worked with CALMIT faculty and staff to gather hyperspectral data using ASD FR and dual head Ocean Optics spectrometers at the University of Nebraska Agricultural Research and Development Center for the University’s Carbon Sequestration Project. Duties included set up/tear down of equipment, collection of data, and quality assurance.  http://csp.unl.edu/Public/.
  • October 2000 – May 2002.  Undergraduate research assistant.  Center for Advanced Land Management Information Technologies.  University of Nebraska-Lincoln. 
    Assisted university faculty and staff with research on The Sand Hills Biocomplexity Project where I assisted with characterizing spatial structure of the region’s interannual and seasonal variation in precipitation and vegetated land cover using satellite, surface radar, and ground observations. http://sandhills-biocomplexity.unl.edu/index.htm.

Publications

  • Ratcliffe, I.C. and G.M. Henebry. 2005. Urban land cover change analysis: The value of comparing historical spy photos with contemporary digital imagery. In: (M. Moeller and E. Wentz, eds.) ISPRS Joint Conferences: 3rd International Symposium, Remote Sensing and Data Fusion Over Urban Areas (URBAN 2005) and 5th International Symposium, Remote Sensing of Urban Areas (URS 2005), International Archives of the Photogrammetry, Remote Sensing, and Spatial Information Sciences, volume 36, part 8/W27. CD: ISSN 1682-1777.
  • Parker, M.D., I.C. Ratcliffe, and G.M. Henebry. 2005. The July 2003 Dakota hailswaths: Creation, characteristics, and possible impacts. Monthly Weather Review. 133: 1241-1260..
  • Segele, Z.T., D.J. Stensrud, I.C. Ratcliffe, and G.M. Henebry. 2005. Influence of a hail streak on boundary layer evolution. Monthly Weather Review. 133: 942-960.
  • Ratcliffe, I.C., and G.M. Henebry. 2004. Using declassified intelligence satellite photographs with Quickbird imagery to study urban land cover dynamics: A case study from Kazakhstan. ASPRS Proceedings. 198:1-10.
  • Ratcliffe, I.C. and G.M. Henebry. 2003. Using declassification intelligence satellite pictures with QuickBird imagery to study urban land cover dynamics: a case study from Kazakhstan Eos Trans. AGU, 84 (46), Fall Meet. Suppl., Abstract B41B-0879, 2003.
  • Henebry, G.M. and I.C. Ratcliffe. 2003. Occurrence and persistence of hailstreaks in the vegetated land surface. Preprints from the 83rd Annual Meeting of the American Meteorological Society. Paper JP5.3.
  • Henebry, G.M. and I.C. Ratcliffe. 2002. Hailstreak occurrence and persistence observed with AVHRR NDVI image time series. Eos Trans. AGU, 83 (47), Fall Meet. Suppl., Abstract B21A-0712 , 2002.

Selected Professional Presentations

  • Ratcliffe, I.C., A. Irmak, J. Kjaersgaard, R. Allen, G. Hergert, G. Stone, and P. Penrose. 2008. Landsat based estimation of evapotranspiration for the Nebraska Panhandle. The 17th William T. Pecora Memorial Remote Sensing Symposium. Denver, CO. November 17-20 (poster).
  • Irmak, A., I. C. Ratcliffe, and R. Singh. 2008. Mapping evapotranspiration using thermal satellite data. The 17th William T. Pecora Memorial Remote Sensing Symposium. Denver, CO. November 17-20 (talk).
  • Dappen, P., J. Merchant, I. Ratcliffe, and C. Robbins.  2006.  Mapping Agricultural Land Use Patterns in Nebraska’s Central Platte River Basin: 2001-2005.  26th Annual ESRI International User’s Conference.  San Diego, CA. August 7-11 (poster).
  • Ratcliffe, I.C. and G.M. Henebry. 2005. Urban land cover change analysis: The value of comparing historical spy photos with contemporary digital imagery. 3rd Annual International Symposium for Remote Sensing and data fusion over Urban Areas. Tempe, AZ. March 13-16. (poster)
  • Ratcliffe, I. and G. Henebry. 2004. Using declassified intelligence satellite photographs with QuickBird imagery to study urban land cover dynamics: a case study from Kazakhstan . ASPRS Annual Conference, Denver, CO. May 25. (poster). Honorable Mention.
  • Ratcliffe, I.C., G.M Henebry, and M.D. Parker. 2004. Hailstreak identification and persistence using MODIS data: A case study of events in the northern Great Plains , July 2003. ASPRS Annual Conference, Denver, CO. May 25. (poster). Best Student Poster.
  • Ratcliffe, I.C. and G.M. Henebry. 2003. Using declassified intelligence satellite photographs with QuickBird Imagery to study urban land cover dynamics: a case study from Kazakhstan . Regional meeting of the Association of American Geographers. Manhattan , KS . October 4. (poster)
  • Henebry, G.M. and I.C. Ratcliffe. 2003. Occurrence and persistence of hailstreaks in the vegetated land surface. Annual meeting of the American Meteorology Society. Long Beach , CA . February 13. (poster)
  • Henebry, G.M. and I.C. Ratcliffe. 2003. Occurrence and persistence of hailstreaks in the vegetated land surface. Nebraska Academy of Sciences, Earth Science Section. Lincoln, NE. April 13. (talk). Best student paper.
  • Ratcliffe, I.C. and G.M. Henebry. 2002. Detection and persistence of hailstreaks using remotely sensed imagery. Annual University Undergraduate Research Conference. Lincoln , NE. April 5-6. (poster)
  • Ratcliffe. I.C. and G.M. Henebry. 2002. Observing hailstreaks in the vegetated land surface. 17 th Annual Symposium, International Association for Landscape Ecology - United States Regional Association (US-IALE). Lincoln , NE. April 23-27. (poster)
  • Ratcliffe, I.C. 2001. Filling in the gaps: rainfall estimates from weather radar. Nebraska Section of the Society for Range Management Annual Meeting, Lincoln , NE , October 4. (talk)
  • Ratcliffe, I.C., G.M. Henebry, and D. Wedin. 2001. Spatio-temporal dynamics of vegetation and precipitation in the Nebraska Sandhills. 86 th Annual Meeting of the Ecological Society of America . Madison , WI . August 5-10. (poster)

Awards

  • Best Student Poster, ASPRS Annual Conference, Denver, CO., 25 May 2004.  “Hailstreak identification and persistence using MODIS data: A case study of events in the northern Great Plains, July 2003.”  Ratcliffe, I.C., G.M Henebry, and M.D. Parker.
  • Honorable Mention, ASPRS Annual Conference, Denver, CO., 25 May 2004.  “Using declassified intelligence satellite photographs with QuickBird imagery to study urban land cover dynamics: a case study from Kazakhstan.”  Ratcliffe, I. and G. Henebry. 
  • Best Student Paper (talk), Nebraska Academy of Sciences, Earth Science Section. Lincoln, NE. 13 April 2003.  “Occurrence and persistence of hailstreaks in the vegetated land surface.”  Henebry, G.M. and I.C. Ratcliffe. 
  • Grant – $2,000. Undergraduate Creative Activities & Research Experiences (UCARE), University of Nebraska – Lincoln, 2001.