New Datasets from NASA Socioeconomic Data and Applications Center
The Socioeconomic Data and Applications Center (SEDAC; WDS Regular Member) has announced the release of the following datasets:
- Altimeter Corrected Elevations (ACE2), v2 (1994–2005)
A 'data rescue' now the springboard for SEDAC's new Digital Elevation Data Collection (DEDC), the ACE2 dataset can be applied to flood risk assessment, land deformation monitoring, landslide modelling, urban planning, and sea level rise impact assessment. By using altimeter data, researchers were able to capture ground elevation in areas with dense tree cover—an improvement over SRTM data, which captures only the top of the canopy. Developers of the datasets were the Earth and Planetary Remote Sensing Laboratory, De Monfort University, UK (P.A.M. Berry and R.G. Smith); and the Science, Applications and Future Technologies Dept, European Space Agency, Earth Observation Science in Italy (J. Benveniste).
- Trends in Global Freshwater Availability from the Gravity Recovery and Climate Experiment (GRACE), v1 (2002–2016)
Part of our Satellite-Derived Environmental Indicators data collection, GRACE measures small changes in Earth's gravity field, to assess the response of the world's water cycle to human impacts and climate variations, in order to evaluate and predict emerging threats to water and food security. This is a global gridded dataset at a spatial resolution of 0.5 degrees that presents trends (rate of change measured in centimeters per year) in freshwater availability based on data obtained from 2002 to 2016 by NASA GRACE. Dataset authors are from the Hydrological Sciences Laboratory, NASA Goddard Space Flight Center (M. Rodell, F. W. Landerer, and H. K. Beaudoing); the Jet Propulsion Laboratory, California Institute of Technology (J. S. Famiglietti, D.N. Wiese, and J.T. Reager); and the Department of Atmospheric Sciences, National Taiwan University (M.-H. Lo).
- Development Threat Index, v1 (2015)
This development threat map is organized by sectors: agricultural and urban expansion, conventional and unconventional oil and gas, coal, mining, biofuels, solar, and wind. The focus on sectors enables a different approach to analysis than, for example, the Human Footprint data and maps, which show greatest vs. less activity on the planet. Developed by researchers from The Nature Conservancy (J.R. Oakleaf, C. Kennedy, S. Baruch-Mordo, and J. Kiesecker); University of Minnesota (P.C. West, J.S. Gerber); and University of British Columbia (Larissa Jarvis).