DGS Projects

Creation of Improved Accuracy LiDAR-Based Digital Elevation Models for the St. Jones River and Blackbird Creek Watersheds

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In tidal wetlands, small differences in ground elevation can have a large impact on hydrology, vegetation, and habitat (e.g., assessment of wetland health and stability, habitat, flood risk, and coastal inundation).

Determination of Future Sea-Level Rise Planning Scenarios for Delaware

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The Delaware Geological Survey will review recent scientific literature and assessments of sea-level change in Delaware and identify appropriate scenarios to use for planning purposes throughout the state. This project will also develop new inundation maps along Delaware's coast that correspond to the identified scenarios.

East Dover Groundwater Flow Model

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In 2015, DGS became aware of a situation east of Dover where there is potential for overpumping of the Columbia aquifer by the City of Dover’s Long Point Road wellfield (LPRW) and numerous large-capacity irrigation wells in the surrounding area (Figure 1).

Groundwater and Saline Water Intrusion Monitoring Network Infrastructure Improvements: Kent County, Delaware

DGS has begun a three year project to install new water monitoring infrastructure and collect baseline data in Kent County, Delaware. Recommended by the Water Supply Coordinating Council in 2015, the project was funded by a fiscal year 2017 State of Delaware Capital Appropriation.
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Strategic Plan for Geologic Mapping of Delaware 2016-2030

Geologic maps at the DGS are created as primary deliverables of a project and as derivatives of other projects. Primary deliverables are mainly those that are the result of outside funding sources such as the AASG-USGS cooperative StateMap. Derivative maps are those that have primary data collected for reasons other than geologic mapping can be used to create geologic maps or that geologic maps are derivative products of a project rather than the primary goal of a project.

Mapping the evapotranspiration (ET) in Sussex County using satellite remote sensing data

Project Contact(s)

DGS is continuing a collaboration with climate scientist Kevin Brinson (DEOS) to develop and test methods to estimate and map annual and seasonal distribution of 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.

Developing a Weather and Flood Monitoring System for Transportation in Delaware

Project Contact(s)
The Delaware Environmental Observing System (DEOS) and the Delaware Geological Survey (DGS) worked closely with DelDOT to provide initial background technical information and to make recommendations on how such a system may be further developed that could be incorporated into future DelDOT strategic