Delaware is home to extensive networks of tidal marshes, which provide an array of critical ecosystem services including carbon sequestration. These marshes accumulate carbon due to their relatively high plant productivity and relatively low rates of litter decomposition.
DGS is collaborating with climate scientist Kevin Brinson (DEOS) and Tracy DeLiberty (Dept. of Geography) to develop and test methods to estimate and map annual and seasonal distribution of evapotranspiration (ET) for Sussex County, Delaware. Remotely sensed data from Landsat 7 ETM+ and MODIS platforms will be used to estimate regional energy balance and water flux. These estimates are calibrated by comparison to ET estimates determined by direct point measurements (Eddy Covariance and atmometer) and models driven by meteorological data such as temperature, relative humidity, wind speed, and soil moisture. The results have the potential to improve accuracy and precision of ET models and will be valuable for efforts that use water budgets for resource management, agriculture, wetland assessment, and research.
A final report was submitted for publication as a DGS Report of Investigations in January 2019.
Faculty members in the University of Delaware’s Department of Geography have launched the DelawareView (DEView) consortium to improve public access to remote sensing and geospatial data.
DEView is an affiliate member of AmericaView, a national network of remote sensing scientists and GIS scientists, funded by the U.S. Geological Survey, who support the use of Landsat and other public domain remotely sensed satellite data for research, education and technology transfer.
The Delaware Geological Survey Cartographic Information Center has made the DGS a focal point for questions concerning the availability of all types of aerial photography, thematic maps, planimetric maps, topographic maps, historic maps, LANDSAT imagery, space imagery, side looking aerial radar imagery (SLAR), and geodetic control. Sources of maps, charts, aerial photography, boundary mark information, and vertical geodetic control can be obtained for your area of interest within the State through the Center's computer-searchable data bases.
We are developing an innovative ground-based imaging system to collect multi-spectral imagery (visible, near and thermal infrared bands) at time-scales (minutes/hours) below those of the dominant processes in intertidal environments (semi-diurnal tides, day/night). A modular system based on mature imaging technology is being assembled for science missions by foot, boat, truck, tower, and lift. This project consists of some critical laboratory studies to test our conceptual framework.
The University of Delaware's first Geospatial Research Day took place in the Trabant University Center on Thursday, Nov. 19. The free event highlighted the geospatial research being conducted at the University of Delaware and the ways in which UD community members are using geospatial technology.
Delawareâs Inland Bays in southeastern Sussex County are valuable natural resources that have been experiencing environmental degradation since the late 1960s. Stresses on the water resource include land use practices, modifications of surface drainage, ground-water pumping, and wastewater disposal. One of the primary environmental problems in the Inland Bays is nutrient over-enrichment. Nitrogen and phosphorous loads are delivered to the bays by ground water, surface water, and air.