News

Strong showing of GSCE members at the Fall AGU meeting 14-18th December 2015

The American Geophysical Union (AGU) Fall Meeting is the largest Earth and space science meeting in the world.   

Several of the GSCE faculty, post-docs. and  Ph.D. students attended the Fall 2015 meeting http://fallmeeting.agu.org/2015/ and gave between them more than 20 poster and oral presentations that are listed below.

 

Cropland land surface phenology and seasonality in East Africa: Ethiopia, Tanzania, and South Sudan

Alemu W. and Henebry, G.M.

Poster presentation in session Climate Variability and the African Environment, Water Resources, and Food Security

 

LP DAAC project artifact tracking via the NASA earth data collaboration environment

Bennett, S.L.D.

Poster presentation in session Geocuration: Issues, Challenges, and Opportunities

 

Validating satellite-derived disturbance products: the case of burned areas

Boschetti, L and Roy, D.P.  

Poster presentation in session Long-Term Climate Data Records and Applications

 

Regulations of evapotranspiration and ecosystem productivity from biophysical and human drivers in drylands Northern Eurasia

Chen J, Z Ouyang, R John, G Henebry, Y Xie, K de Beurs, Y Fan, C Shao, J Qi, J Wu, Y Liu

Poster presentation in session Environmental, Socioeconomic, and Climatic Changes in Northern Eurasia and Their Feedbacks to the Global Earth System and Society

 

Fire patterns and drivers of fires in the West African tropical forest

Dwomoh, F.K. and Wimberly, M.C.

Poster presentation in session The Role of Fire in the Earth System: Understanding Drivers, Feedbacks, and Interactions with the Land, Atmosphere, and Society

 

Comparative perspectives on recent trends in land surface dynamics in the grasslands of North and South America

Henebry GM, P Valle de Carvalho e Oliveira, B Zheng, KM de Beurs, B Owsley.

Oral presentation in session Climate-Vegetation Interaction and Land Cover/Land Use Change in Semi-Arid Grassland Ecosystems

 

New perspectives on longwave imaging of urban heat islands: Middle infrared to microwaves

Henebry GM, C Krehbiel, B Zheng, L Nguyen, KM de Beurs, B Owsley

Poster presentation in session Urban Areas and Global Change

 

Investigating Landsat-derived forest evapotranspiration in the Amazon

Khand, K., Numata, I., Kjaersgaard, J., Cochrane, M. A.

Poster presentation in session Integrating In Situ and Remote Sensing Observations of the Terrestrial Biosphere to Provide Insights into Earth System Function

 

The dynamics of cities: Assessing scaling relations of past and projected urban population and infrastructure to analyze trajectories of urbanization in the 21st Century

Krehbiel, C. P. and  Henebry, G. M.  

Poster presentation in session Urban Areas and Global Change

 

Active fire detection using Landsat 8 reflective bands

Kumar, S.S. and Roy, D.P.

Oral presentation in session Advances in remote sensing of fires, aerosols, and air quality trace gases

 

Investigation of biomass combustion rate of fire radiative energy using multiple-satellite-observed active fires and Landsat TM burn severities across the continental United States

Li, F., Zhang, X., Kondragunta, S.

Poster presentation in session Wildfire in a Changing World: Interactions with Climate and Ecosystems

 

Estimating ecosystem carbon stock change in the Conterminous United States from 1971 to 2010
Liu, J., Sleeter, B.M., Zhu, Z., Loveland, T.R., Sohl, T.L., Howard, S.M., Hawbaker, T.J., Liu, S., Heath, L.S., Cochrane, M.A., Key, C.H., Jiang, H., Price, D.T., J.M. Chen

Poster presentation in session Estimating Ecosystem Carbon Stock Change in the Conterminous United States from 1971 to 2010

 

Phenological monitoring of Acadia National Park using Landsat, MODIS and VIIRS observations and fused data

Liu, Y., MacKenzie, C.M., Primack, R., Zhang, X., Schaaf, C., Sun, Q., Wang, Z.

Poster presentation in session Understanding Phenology across Scales and Improving Linkages to Ecosystem Functions

 

Climatic and human influence on tropical forest degradation in West Africa

Liu, Z., Wimberly, M. C., Dwomoh, F. K.

Poster presentation in session  Climatic Controls on Vegetation Dynamics in Tropical Forests

 

Dynamic linear models using the Kalman filter for early detection and early warning of malaria outbreaks

Merkord, C. L., Liu, Y., DeVos, M., Wimberly, M. C. 
Poster presentation in session The NASA Public Health and Air Quality Program: integrating remote sensing, spatial analysis, and modeling for the analysis of environmentally driven human health risks.

 

Urban expansion of major cities in the US Great Plains from 2000 to 2009 using scatterometer data

Nguyen L, S Nghiem, GM Henebry

Poster presentation in session Urban Areas and Global Change

 

Analysis of edge effects on fragmented forests using forest inventories in Southwestern Amazonia

Numata, I., Silva, S.S., Cochrane, M.A.

Poster presentation in session Integrating In Situ and Remote Sensing Observations of the Terrestrial Biosphere to Provide Insights into Earth System Function

 

Synthesis of decades of change in Northern Eurasian ecosystems: Current assessment and future projections

Soja A, G Henebry, D Cahoon, B Stocks, W de Groot, N Tchebakova, E Parfenova, E Kukaskaya, T Loboda, J McCarty, J Shuman, H Shugart, J Chen, K Bergen, S Conard, B Rogers, K de Beurs, A Prischchepov, Q Zhuang

Oral presentation in session Environmental, Socioeconomic, and Climatic Changes in Northern Eurasia and Their Feedbacks to the Global Earth System and Society

 

The responses of land surface phenology to the rainy season over “Never-green” and “Ever-green” lands in Africa 

Yan, D., Zhang, X.Y., Yu, Y.Y., Guo, W.  

Poster presentation in session Remote Sensing to Support Investigations in Plant-Climate Interactions

 

Conterminous United States crop field size quantification from multi-temporal Landsat data

Yan, L. and  Roy, D.P.

Oral presentation in session Advances in Earth Observations for Regional to Global Agricultural Monitoring: GEOGLAM and Other Activities

 

Long-term Landsat 5 Thematic Mapper reflectance inconsistencies caused by Landsat satellite orbit drift

Zhang, H. K. and Roy, D.P.

Poster presentation in session Instrument Characterization and Calibration for Climate and Environmental Measurements

 

A system for monitoring and forecasting Land Surface Phenology using time series of JPSS VIIRS observations and its applications

Zhang, X., Yu, Y., Liu, L.

Oral presentation in session Space-Based, Operational Global Earth Observations from S-NPP and JPSS

 

Monitoring carbon monoxide pollution over the largest ten cities in the US using satellite observations

Zheng B., de Beurs K., Owsley, B., Krehbiel, C., Henebry, G.

Oral presentation in session Urban Areas and Global Change

News Date: 
Dec 14, 2015 to Dec 18, 2015

Dr. Roy presents at Cyprus Remote Sensing conference

Dr. Roy was a guest speaker at the 10th EARSeL Forest Fire Special Interest Group Workshop "Sensors, Multi-sensor integration, large volumes: New opportunities and challenges in Forest Fire Research", Limassol, Cyprus, 2-5 November 2015. 

He met with European collaborators on a recent NASA funded project and gave a presentation “Prototyping a Landsat-8 Sentinel-2 Burned Area Product”, David P. Roy1, Haiyan Huang1, Sanath Kumar1, Hankui Zhang1, Jian Li1, Jose L. Gomez-Dans2, Philip E. Lewis2, Luigi Boschetti3  

1 Geospatial Sciences Center of Excellence, Wecota Hall, South Dakota State University Brookings, SD 57007, USA.

2 National Centre for Earth Observation (NCEO) and Department of Geography, University College London, Gower Street, London, WC1E 6BT, U.K.

3 Department of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, ID 83843, USA.

News Date: 
Nov 02, 2015 to Nov 13, 2015

GSCE doctoral students receive fellowships to study African grasslands, water resources

Two doctoral students, Njoki Kahiu and Esther Mosase, have received Schlumberger Foundation Faculty for the Future Fellowships to support research using earth-imaging satellite data through the Geospatial Sciences Center of Excellence to manage natural resources in Africa.

www.sdstate.edu/news/articles/doctoral-students-receive-schlumberger-fellowships.cfm

News Date: 
Sep 22, 2015

New analysis suggests trees contribute to re-greening of the Sahel

A GSCE team recently completed a study of long-term vegetation dynamics in 260 watersheds of the West African Sahel.  Postdoctoral research Armel Kaptué with GSCE faculty Lara Prihodko and Niall Hanan found consistent recovery (“re-greening”) of vegetation since the severe droughts of the 1970s and 1980s, but with strong regional differences related to the degree of recovery of woody plant populations.  While human-induced degradation occurs in areas of most intensive land-use, the study concludes that overgrazing and desertification are not as ubiquitous in the Sahel as often reported. The full article is published in the Proceedings of the National Academy of Science (doi: 10.1073/pnas.1509645112).

News Date: 
Sep 21, 2015

GSCE Graduate Students Doing Fieldwork in Kenya

Geospatial Science and Engineering PhD program students Njoki Kahiu and Chris Axelsson are currently doing fieldwork in Kenya as part of their independent research projects.  Both are working in savanna landscapes, with field sites in Amboseli, Tsavo East and Tsavo West National Parks and in private conservancies in Laikipea district.  Njoki is measuring leaf area index (LAI) of woody and herbaceous plants as the rainy season progresses for comparison to remote sensing estimates she is deriving from MODIS data. Chris is collecting detailed information on woody community structure (density and size of trees and shrubs) for comparison to high resolution satellite estimates.  Local collaborators include the Kenya Wildlife Service who have provided access to the National Parks for this research, and communities associated with group ranches and private conservancies in Laikipea.

GSCE Graduate students Njoki Kahiu and Chris Axelsson (3rd and 5th from right) with advisor Niall Hanan (2nd from right) at the Il Ngwesi group ranch eco-lodge, Laikipea district, Kenya.

News Date: 
Sep 21, 2015

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