# overview
My current research interests lie in the application of remote sensing and geographic information science (GISci) techniques to study the cryosphere. I been actively involved in the development of algorithms to measure snow extent and snow albedo from data collected by NASA's MODIS instrument.  I have spent 20 years studying human impacts in Antarctica.

# hrJobTitle
Professor and Director of Distance Education Programs

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
Cbernn Threats (chemical, Biological, Explosive, Radiological, Nuclear And Natural)

# keywords[]
3709 Physical Geography And Environmental Geoscience

# keywords[]
3709 Physical Geography And Environmental Geoscience

# educationAndTraining[].organization.label
Cornell University - (Ithaca, New York, United States)

# educationAndTraining[].organization.label
Macalester College - (Saint Paul, Minnesota, United States)

# educationAndTraining[].field
Geology and Environmental Studies with Geography Core

# awardsAndHonors[].label
Association of Former Students College-Level Teaching Distinguished Achievement Award, The

# publications[].label
Validation of daily MODIS snow cover maps of the Upper Rio Grande River Basin for the 2000-2001 snow year

# publications[].label
Eastern snow conference/Canadian geophysical union hydrology section - Preface

# publications[].label
On the disappearance of the Puncak Mandala ice cap, Papua

# publications[].label
Improving MODIS snow products with a HMRF-based spatio-temporal modeling technique in the Upper Rio Grande Basin

# publications[].label
Error analysis for global snow-cover mapping in the Earth Observation System (EOS) era

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Understanding of an Iceberg Breaking Off Event Based on Ice-Front Motion Analysis of Amery Ice Shelf, Antarctica

# publications[].label
GIS and Homeland Security Education: Creating a Better Tomorrow in our Classrooms Today

# publications[].label
Spatial patterns of total petroleum hydrocarbons in the terrestrial environment at McMurdo Station, Antarctica

# publications[].label
Effect of Tornado Outbreaks on Morbidity and Mortality in Texas

# publications[].label
An Exploration of Spatial Thinking in Introductory GIS Courses

# publications[].label
Distribution and assessment of heavy metals in the aquatic environment of Lake Manzala, Egypt

# publications[].label
Permanent Scatterer investigation of land subsidence in Greater Cairo, Egypt

# publications[].label
Development of a technique to assess snow-cover mapping errors from space

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Comparison of Late Pleistocene and Modern Glacier Extents in Central Nepal Based on Digital Elevation Data and Satellite Imagery

# publications[].label
THE GROUNDING OF THE BAHIA PARAISO, ARTHUR HARBOR, ANTARCTICA: DISTRIBUTION AND FATE OF OIL SPILL RELATED HYDROCARBONS

# publications[].label
Modern and last local glacial maximum snowlines in the Central Andes of Peru, Bolivia, and Northern Chile

# publications[].label
Algorithm intercomparison for accuracy assessment of the MODIS snow-mapping algorithm

# publications[].label
Retreat of glaciers on Puncak Jaya, Irian Jaya, determined from 2000 and 2002 IKONOS satellite images

# publications[].label
Modern and Last Glacial Maximum snowline in Peru and Bolivia: implications for regional climatic change

# publications[].label
Direct Injuries and Fatalities of Texas Tornado Outbreaks from 1973 to 2007

# publications[].label
Suitability assessment for New Minia City, Egypt: A GIS approach to engineering geology

# publications[].publisher
Association of Environmental and Engineering Geologists

# publications[].label
The historical development of McMurdo station, Antarctica, an environmental perspective

# publications[].label
Maps & GIS Data Libraries in the Era of Big Data and Cloud Computing

# publications[].label
Correspondence on: Modern and Last Local Glacial Maximum snowlines in the Central Andes of Peru, Bolivia, and Northern Chile. Quaternary Science Reviews 18, 63-84. Reply to correspondence by Uwe Dornbusch

# publications[].label
Local Emissions and Regional Wildfires Influence Refractory Black Carbon Observations Near Palmer Station, Antarctica

# publications[].label
Regional synthesis of last glacial maximum snowlines in the tropical Andes, South America

# publications[].label
Vertical distribution of brown and red macroalgae along the central Western Antarctic Peninsula

# publications[].label
GIS Goes Far Beyond Geography at Texas A&M

# publications[].label
InSAR Study of Shoreline Change along the Damietta Promontory, Egypt

# publications[].publisher
Coastal Education and Research Foundation

# publications[].label
Remote sensing of rapidly diminishing tropical glaciers in the northern Andes

# publications[].label
Eastern Snow Conference/Western Snow Conference - Preface

# publications[].label
Improving snow cover mapping in forests through the use of a canopy reflectance model

# publications[].label
Assessment of snow-cover mapping accuracy in a variety of vegetation-cover densities in central Alaska

# publications[].label
Cross-Comparison between MODIS and VIIRS Snow Cover Products for the 2016 Hydrological Year

# publications[].label
Spectral mixture analysis of Landsat thematic mapper images applied to the detection of the transient snowline on tropical Andean glaciers

# publications[].label
Self-Organizing Map-based Applications in Remote Sensing

# publications[].label
Fatty acid profiles and stable isotope composition of Antarctic macroalgae: a baseline for a combined biomarker approach in food web studies

# publications[].label
Long-Term Monitoring of Human Impacts to the Terrestrial Environment at McMurdo Station

# publications[].label
Reply to correspondence by Uwe Dornbusch

# publications[].label
The Impact of Natural Disasters on Domestic Violence: An Analysis of Reports of Simple Assault in Florida (1999-2007)

# publications[].tags
16 Peace, Justice and Strong Institutions

# publications[].label
Long-term changes in contamination and macrobenthic communities adjacent to McMurdo Station, Antarctica.

# publications[].label
Calibration of the Sleuth Model Based on the Historic Growth of Houston

# publications[].label
Temporal and spatial patterns of anthropogenic disturbance at McMurdo Station, Antarctica

# publications[].label
Assessment of sediment contamination in Casco Bay, Maine, USA.

# publications[].label
Effects of the El Nino-southern oscillation on temperature, precipitation, snow water equivalent and resulting streamflow in the Upper Rio Grande river basin

# publications[].label
Anthropogenic effects on the marine environment adjacent to Palmer Station, Antarctica

# publications[].label
Using epibenthic fauna as biomonitors of local marine contamination adjacent to McMurdo Station, Antarctica.

# publications[].label
Land subsidence in the Nile Delta of Egypt observed by persistent scatterer interferometry

# publications[].label
Detection of snow cover using millimeter-wave imaging radiometer (MIR) data

# publications[].label
Tracking change in the central andes mountains

# publications[].label
Development and validation of a snow albedo algorithm for the MODIS instrument

# publications[].label
Covering the mass graves at the Belzec Death Camp, Poland; geotechnical perspectives

# publications[].label
A comparison of MODIS and NOHRSC snow-cover products for simulating streamflow using the Snowmelt Runoff Model

# publications[].label
Spatial Distribution of Estimated Wind-Power Royalties in West Texas

# publications[].label
Spatial distribution and ecological risk assessment of trace metals in surface sediments of Lake Qaroun, Egypt.

# publications[].label
The Randolph Glacier Inventory: a globally complete inventory of glaciers

# publications[].label
Special issue - Eastern Snow Conference/Western Snow Conference - Preface

# publications[].label
Fractional snow cover mapping through artificial neural network analysis of MODIS surface reflectance

# publications[].label
Inter-and Intra-annual Surface Velocity Variations at the Southern Grounding Line of Amery Ice Shelf from 2014 to 2018

# researcherOn[].label
Toward Enhanced Monitoring of Human Impacts in Cold Regions

# researcherOn[].awardedBy.label
United States Army - (Washington D.C., District of Columbia, United States)

# researcherOn[].awardedBy.preferredLabel
DOD-Army-COE-Cold Region Research & Engineering Lab (crrel)

# researcherOn[].label
Collaborative Research: Sea Ice as a Driver of Antarctic Benthic Macroalgal Community Composition and Nearshore Trophic Connectivity

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].label
Toward Enhanced Monitoring of Human Impacts in Cold Regions

# researcherOn[].awardedBy.label
United States Army - (Washington D.C., District of Columbia, United States)

# researcherOn[].awardedBy.preferredLabel
DOD-Army-COE-Cold Region Research & Engineering Lab (crrel)

# streetAddress
Texas A&M University; Geography; 3147 TAMU

# inTheNews[].label
Examples Of Local Governments And Groups Practicing Social Distancing

# inTheNews[].label
Texas A&M Continues Moving To New Learning Management System

# inTheNews[].label
Applied Math Major Honored With 2020 Aggie Spirit Award

# etdChairOf[].label
Kincaid, Joni L. (2007-09). An assessment of regional climate trends and changes to the Mt. Jaya glaciers of Irian Jaya. Master's Thesis.

# etdChairOf[].label
Chi, Zhaohui 1982- (2012-12). Investigation of Glacial Dynamics in the Lambert Glacier-Amery Ice Shelf System (LAS) Using Remote Sensing. Doctoral Dissertation.

# etdChairOf[].label
Thapa, Shubhechchha (2017-08). Comparison of MODIS and VIIRS Snow Cover Products for the 2016 Hydrological Year. Master's Thesis.

# etdChairOf[].label
Oguz, Hakan (2005-08). Modeling urban growth and land use/land cover change in the Houston Metropolitan Area from 2002 - 2030. Doctoral Dissertation.

# etdChairOf[].label
Green, Carl A (2018-05). Greening of Recently Deglaciated Lands on the Kenai Peninsula. Master's Thesis.

# etdChairOf[].label
Forrest, Timothy Lee (2007-04). Logistic regression models for predicting trip reporting accuracy in GPS-enhanced household travel surveys. Master's Thesis.

# etdChairOf[].label
Latterman, LaDonna (2012-02). Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010. Master's Thesis.

# etdChairOf[].label
Zhao, Panshu (2012-07). Validation of Current Moderate Resolution Imaging Spectroradiometer (MODIS) Daily Snow Albedo Product and Spatial Analysis Based on Multiple Sensors. Master's Thesis.

# etdChairOf[].label
Tilton, Mary (2015-11). Using GIS to Estimate the Spatial Distribution of Wind-Power Royalties in West Texas. Master's Thesis.

# etdChairOf[].label
Ju, Yang (2017-05). Fractional Snow Cover Mapping through Polytopic Vector Analysis of MODIS Spectral Reflectance. Master's Thesis.

# etdChairOf[].label
Aly, Mohamed Hassan (2009-05). Radar interferometry for monitoring land subsidence and coastal change in the Nile Delta, Egypt. Doctoral Dissertation.

# etdChairOf[].label
Dobreva, Iliyana D. (2010-07). Fractional Snow-Cover Mapping Through Artificial Neural Network Analysis of MODIS Surface Reflectance.. Master's Thesis.

# etdChairOf[].label
Morris, Jennifer Nicole (2012-10). Quantification of Impurities in Prairie Snowpacks and Evaluation and Assessment of Measuring Snow Parameters from MODIS Images. Master's Thesis.

# etdChairOf[].label
Li, Yiran (2018-04). SEA ICE AND ICE SHEET SURFACE ROUGHNESS CHARACTERIZATION AND ITS EFFECTS  ON BI-DIRECTIONAL REFLECTANCE. Master's Thesis.