Australia is one of the largest users worldwide, by volume and variety, of Earth Observations from Space (EOS). These observations underpin weather forecasting, a large variety of operational services for land, oceans and atmosphere, as well as the research and development (R&D) activities that generate new applications and benefits for the nation.
Estimation of Glacial Extent and Velocity Fields in Alaska
This summer, DEVELOP interns at Ames Research Center used interferometric synthetic aperture radar (InSAR) to analyze glacial dynamics with respect to climate in the Aleutian Islands, Alaska. The project’s goal was to examine the size and speed of various glaciers in the Aleutian Archipelago and compare them to temperature and precipitation records.
Improving Small-Scale Wind Forecasting through NASA EOS
Intense extratropical cyclones are often associated with non-convective high winds, which have devastating economic and societal impacts. This study used experimental GOES satellite data derived from NASA satellite products and NASA Modern-Era Retrospective Analysis for Research and Applications (MERRA) reanalysis data to assess the link between subsiding upper-level air and high-surface winds in three intense mid-latitude cyclones that produced significant wind events. The results are expected to help increase forecasters’ understanding of the structure of intense extratropical cyclones that produce high-impact, non-convective winds and lead to improved forecasts of these events.
Landsat: An Earth-Observing Trailblazer
Landsat missions have been funded for nearly 40 years. The images returned by the series of satellites have been useful in mapping urban growth, monitoring carbon in forests and deforestation, monitoring crop acreage, and surveying disaster aftermath. Landsat data has even found previously uncharted land and led to the discovery of new species.
Using the Landsat Archive for the Monitoring of Mediterranean Coastal Wetlands: Examples from the GlobWetland-II Project
Coastal wetlands in the Mediterranean have undergone considerable land use and land cover changes in recent decades, by way of urban growth and increasing tourism infrastructure. The GlobWetland-II project makes use of the 35 years of Landsat archives for a basic identification and delineation of wetlands during 1975, 1990, and 2005. The authors present results of wetland identification and delineation mapping from 1975 to 2002, for the test sites of the Menderes Delta and GÌ_llÌ_k Bay.
Monitoring Crop Tillage Practices and Carbon Sequestration with NASA EOS for Enhanced Agricultural Management Decision Support
This project builds off of past data processing methodologies in an effort to validate previous techniques for monitoring tillage practices. We will produce visuals for conservation method adoption using remote sensing data in Virginia. The results will be confirmed using CropScape coupled with percentage data derived from the Conservation Technology Information Center (CTIC) as opposed to the line-transect ground-truth method used by NASA Langley’s summer 2011 Midwest Agriculture & Climate team.