John F. Schalles
John F. Schalles

John F. Schalles

Professor
College of Arts and Sciences

Academic Appointments

Department

  • Biology

Position

  • Professor

Publications and Presentations

Books

  • Schalles, J. F. Optical remote sensing techniques to estimate phytoplankton chorophyll a concentrations in coastal waters with varying suspended matter and CDOM concentrations, Remote sensing of aquatic coastal ecosystem processes: science and management applications, 9, 27-79, 2006

Articles

  • Hladik, Christine, Schalles, John, Alber, Merryl Salt marsh elevation and habitat mapping using hyperspectral and LIDAR data, Remote Sensing of Environment, 139, 318-330, 2013
  • Schalles, John F., Hladik, Christine M., Lynes, Alana A., Pennings, Steven C. Landscape Estimates of Habitat Types, Plant Biomass, and Invertebrate Densities in a Georgia Salt Marsh, Oceanography, 26, 88-97, 2013
  • Schalles, John F., Hladik, Christine M. Mapping phytoplankton chlorophyll in turbid, Case 2 estuarine and coastal waters, Israel Journal of Plant Sciences, 60, 169-191, 2012
  • Zhou, J., Gilerson, A., Ioannou, I., Hlaing, S., Schalles, J., Gross, B., Moshary, F., Ahmed, S. Retrieving quantum yield of sun-induced chlorophyll fluorescence near surface from hyperspectral in-situ measurement in productive water, Optics Express, 16, 17468-17483, 2008
  • Gilerson, A., Zhou, J., Hlaing, S., Ioannou, I., Schalles, J., Gross, B., Moshary, F., Ahmed, S. Fluorescence component in the reflectance spectra from coastal waters. Dependence on water composition., Optics Express, 15, 15702-15721, 2007
  • Gitelson, Anatoly A., Schalles, John F., Hladik, Christine M. Remote chlorophyll-a retrieval in turbid, productive estuaries: Chesapeake Bay case study, Remote Sensing of Environment, 109, 464-472, 2007
  • Alberts, J. J., Takacs, M., Schalles, J. Ultraviolet-visible and fluorescence spectral evidence of natural organic matter (NOM) changes along an estuarine salinity gradient, Estuaries, 27, 296-310, 2004
  • Maeder, J., Narumalani, S., Rundquist, D. C., Perk, R. L., Schalles, J., Hutchins, K., Keck, J. Classifying and mapping general coral-reef structure using Ikonos data, Photogrammetric Engineering and Remote Sensing, 68, 1297-1305, 2002

Presentations

  • Schalles, J.F., A.C. Hart-Kouri, A.E. Altrichter, E.M. Carpenter, and P. Vichienwanitchkul. Coastal systems in a time of climate change: The mangroves are coming. Climate Change Actions – Sustainable Solutions for a Living Earth. Loyola University – Chicago. Chicago, IL. March 19-21, 2015., 2015
  • Schalles, J.F. Vegetation and Phytoplankton Patterns in Coastal Ecosystems Revealed with Remote Sensing and Survey-Based Classification Algorithms. Biology Department, University of Texas at Brownsville. Brownsville, TX. February 27, 2015. (Invited), 2015
  • Schalles, J.F. Vegetation and Phytoplankton Patterns in Coastal Ecosystems Revealed with Remote Sensing and Survey-Based Classification Algorithms. Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC. January 28, 2015. (Invited), 2015
  • O’Donnell, J.P., and J.F. Schalles. Long-term patterns of primary production in Georgia salt marshes. Georgia Coastal salt marshes. Georgia Coastal Ecosystems LTER Annual Meeting, University of Georgia, Athens, GA. January 8, 2015., 2015
  • O’Donnell, J.P., and J.F. Schalles. Using three decades of Landsat TM data to examine Georgia coastal salt marsh vegetation. NOAA-Educational Partnership Program 7th Biennial Meeting. University of Maryland - Eastern Shore, Princess Anne, MD. October 26-29, 2014. (poster), 2014
  • Schalles, J.F., D.N. Seminara, A.E. Altrichter, E.M. Carpenter, A.C. Hart-Kouri, and P. Vichienwanitchkul. The Mangroves are Coming? The Mangroves are Coming! Mapping, monitoring, and freeze recovery of Black Mangrove, Avicennia germinans, in Texas. NOAA-Educational Partnership Program 7th Biennial Meeting. University of Maryland - Eastern Shore, Princess Anne, MD, October 26-29, 2014. (poster), 2014
  • Schalles, J.F. Harmful algal bloom (HAB), detection, monitoring, and forecasting. NOAA-NCCOS / Environmental Cooperative Science Center Bioindicators Workshops [75 minute lecture powerpoint slide presentation and voice narration recordings provided for workshops organized and presented by Drs. Lonnie Gonsalves and and Gretchen Messick]. Florida A&M University (September 9-11, 2014) and the University of Texas-Brownsville (September 15-17, 2014)., 2014
  • Gilson, G.F., J.F. Schalles, and J.P. O’Donnell. Quantifying spatial variability of microbenthic algae using optical reflectance measurements. Nebraska Academy of Science Annual Meeting, Nebraska Wesleyan University, Lincoln, Nebraska. April, 2014., 2014
  • Schalles, J.F., J. P. O'Donnell, and J.T. Olley. Abstract Submitted: Remote sensing and geospatial analysis of material gradients and fronts within the Inner Shelf of the Central South Atlantic Bight. Ocean Sciences Meeting. Honolulu, Hawaii. February, 2014., 2014
  • Schalles, J.F., E. Carpenter, and A. Altrichter. Invasive mangroves in Texas: Surveys and high resolution imagery to map distribution, canopy height and cover, and response to a severe freeze. Coastal and Estuarine Research Federation Biennial Meeting. San Diego, California. November, 2013., 2013
  • Gilson, G., J.F. Schalles, and J.P. O’Donnell. Quantifying spatial variability of microbenthic algae using optical reflectance measurements. Coastal and Estuarine Research Federation Biennial Meeting. San Diego, California. November, 2013., 2013
  • Schalles, J.F., A.C. Hart, A.E. Altrichter, and E.J. Carpenter. The mangroves are coming? The Mangroves are coming! Oh, my. University of Georgia Marine Institute Summer Seminar Program, Sapelo Island, Georgia. June, 2013., 2013
  • Gilson, G.F., and J.F. Schalles. Microbenthic algae densities in the Duplin Tidal Watershed, Georgia, USA. Nebraska Academy of Science Annual Meeting, Nebraska Wesleyan University, Lincoln, Nebraska. April, 2013., 2013
  • Schalles, J., J. Gibeaut, D. Seminara, and L. Lester. Ecosystem characterization using WorldView2 imagery, legacy data, and state of the art geospatial analysis for student training and NOAA-NERR research and management. NOAA-Environmental Cooperative Science Center Annual Meeting, Tampa, Florida. March, 2013., 2013
  • Schalles, J.F., A. E. Altrichter, A. C. Hart, and E.J. Carpenter. Habitat mapping and recovery from freeze damage in invasive Black Mangrove, Redfish Bay, Texas. Texas Mangrove Symposium, University of Texas Marine Sciences Institute, Port Aransas, Texas. February, 2013 (Invited), 2013
  • Schalles, J.F., J.J. Alberts, M. Takacs, and C.G. Fichot. Sources and dynamics of dissolved organic carbon outwelling on the Georgia coast into the South Atlantic Bight: Research and Student Training. ASLO 2013 Aquatic Sciences Meeting. New Orleans, Louisiana, February, 2013., 2013
  • Seminara, D.N., and J.F. Schalles. The vegetation structure of Northern Gulf of Mexico salt marshes revealed by polygon-trained classifications of high resolution imagery. ASLO 2013 Aquatic Sciences Meeting. New Orleans, Louisiana, February, 2013., 2013
  • Cherrier. J., B. Kelly, M. Abazinge, C. Jagoe, R. Callender, J. Schalles, W. Tunnell. Promoting a balance between societal demands and coastal ecosystem sustainability. ASLO 2013 Aquatic Sciences Meeting. New Orleans, Louisiana, February, 2013., 2013
  • Schalles, J. J. O’Donnell, J. Olley, G. Gilson, W. Crouch, and L. Carveth. Wetland spatial and temporal patterns in the Duplin watershed and wider GCE domain. Georgia Coastal Ecosystems LTER Annual Meeting. University of Georgia, Athens, Georgia, January, 2013 (Poster)., 2013
  • Schalles, J.F., and A. Gilerson. Assessment and mapping phytoplankton chlorophyll patterns in inland and coastal habitats. The 1st GloboLakes Scientific Workshop. University of Stirling, Stirling, Scotland, UK, December, 2012 (Invited)., 2012
  • Schalles, J.F., C.M. Hladik, and D.N. Seminara. Cranes, planes, and planktonic meals: Habitat characterizations in Gulf and East Coast NOAA National Estuarine Research Reserves. OneNOAA Webinar, November, 2012 (This presentation was a Webcast from the Creighton campus to all NOAA Laboratories and Centers, and to the affiliates of the NOAA Environmental Cooperative Science Center; Invited)., 2012
  • Schalles, J.F., C.M. Hladik, and S. Pennings. Remote sensing of salt marsh biomass at the Georgia Coastal Ecosystems LTER. National Science Foundation LTER All Scientists Meeting. YMCA of the Rockies. Estes Park, CO. September, 2012 (Invited)., 2012
  • O’Donnell, J., and J. Schalles, J. Olley, G. Gilson, W. Crouch, and L. Carveth. Mapping phytoplankton and related physical-chemical variables within the Duplin River Tidal Drainage in Georgia. National Science Foundation LTER All Scientists Meeting. YMCA of the Rockies. Estes Park, CO. September, 2012 (Poster)., 2012
  • Schalles, J.F., J.T. Olley, J.P. O'Donnell, and C.M. Hladik. Assessing chlorophyll patterns in tidal tributary streams and rivers and in estuary to near shore transition zones. IEEE International Geoscience and Remote Sensing Symposium, Munich, Germany, July, 2012 (Invited)., 2012
  • Olley, J.T., J.P. O'Donnell, and J.F. Schalles. Close-range remote sensing and HPLC analysis of coastal phytoplankton on the Atlantic and Gulf Coasts. TOS/ASLO/AGU Ocean Sciences Meeting. Salt Lake City, Utah, February, 2012., 2012
  • Schalles, J.F. Olley, J.T., C.M. Hladik, and J.P. O'Donnell. Comparing algal chlorophyll spatial patterns within and between Gulf and East Coast National Estuarine Research Reserves. Coastal and Estuarine Research Federation Biennial Meeting. Daytona Beach, Florida, November, 2011., 2011
  • Seminara, D.N., and J.F. Schalles. Intersite comparison of marsh spatial patterns using hyperspectral imagery at NERR sites along the Gulf and Atlantic coast. Coastal and Estuarine Research Federation Biennial Meeting. Daytona Beach, Florida, November, 2011., 2011
  • Schalles, J.F., D.N. Seminara, P. Merani, and H.J. Cho. Geospatial analysis of habitat data at Grand Bay NERR. Grand Bay National Estuarine Research Research – Research Symposium. Moss Point, Mississippi, October, 2011. (Invited)., 2011
  • Seminara, D.N., J.F. Schalles, and T.P. Strange. Salt marsh feature extraction using high resolution satellite and aerial imagery. Grand Bay National Estuarine Research Research – Research Symposium. Moss Point, Mississippi. October, 2011. (Poster), 2011
  • Schalles, John. Presentation: Student training and habitat monitoring in coastal systems. Teacher and Student Training. NASA Western Region Space Grant Director’s Meeting, Fairbanks, AK. August. 2011., 2011
  • Schalles, John. (1) Geospatial analysis of coastal habitats and (2) The stories of Richard J. Reynolds, Eugene P. Odum, and the University of Georgia Marine Institute. University of Georgia Marine Institute Summer Seminar Program, Sapelo Island, Georgia. July, 2011., 2011
  • O’Donnell, John, and John Schalles. Automated, boat-borne remote sensing of water quality in a Georgia tidal watershed. Nebraska Academy of Science Annual Meeting, Nebraska Wesleyan University, Lincoln, Nebraska. April, 2011., 2011
  • Hart, A.C., and J.F. Schalles. Texas mangrove mapping in the Mission-Aransas NERR. Nebraska Academy of Science Annual Meeting, Nebraska Wesleyan University, Lincoln, Nebraska. April, 2011., 2011
  • Schalles, J.F., C.M. Hladik, D.N Seminara, and J.P. O'Donnell. Mapping Coastal and Estuarine Chlorophyll Concentrations. American Society of Limnology and Oceanography Annual Meeting, San Juan, Puerto Rico. February, 2011., 2011

Research and Scholarship

Grant Funding Received

  • National Science Foundation. October 1, 2015 – September 30, 2020. Remote Sensing of Salt Marsh Areal Extent: Past, Present and Future (C. Schaaf, D. Roy, J. Schalles, and J. Masek, co-PIs). In: Salt Marsh Networks: Understanding and Assessing Natural Carbon Sequestration Processes Bob Chen, Lead PI [59.5K for subcontract to Creighton, $5 million total; Preproposal Submitted in December; proposal pending]
  • Global Innovation Initiative – British Council. (P. Hunter, PI; A. Tyler, V. Spyrakos, C. Barbosa, Y. Zhgang, and J. Schalles, co-PIs. Global freshwater resource monitoring using the next generation of Earth-observing satellites (GOLIATH). [Creighton subcontract $50K; $300K total]. Proposal submitted in October, 2014 (pending).

Awards and Honors

  • Environmental Educator Achievement Award, The Sierra Club - Nebraska Chapter, 2011
  • Dean's Award for Excellence for Professional Excellence in Scholarship, CCAS, Creighton University, 2011