Conditional Simulation of the Wilmington Sand-Shale Sequence, Los Angeles Basin
In shaly clastic reservoirs at a scale where vertical cross flow cannot be ignored the main source of heterogeneity is the apparent random geometry of the sand-shale sequence. That geometry...

Extraction of Terrain Features from Digital Elevation Models
Digital elevation models (DEMs) are being used to determine variable inputs for hydrologic models in the Delaware River basin. Recently developed software for analysis of DEMs has been...

Simulation of Precipitation by Weather-Type Analysis
A new approach that uses weather-type analysis as a basis for stochastic precipitation modeling was developed and tested for Philadelphia, Pennsylvania. The weather types permit the identification...

In Situ Measurement of Preferential Flow
An experiment was performed that quantifies the variability of flow paths in the vadoze zone. Bromide tracer and an organic dye, which has many of the same transport characteristics as...

Wilmington, N.C.'s Affordable Single Family Housing Policy

Water Main Cleaning and Lining—A Utility Perspective
The Chester Water Authority is a regional water supply system located in Southeastern Pennsylvania serving a population of over 140,000 people in two countries and a large industrial complex...

An Approach for Modeling the Upper Chesapeake Bay
To resolve the bay geometry with a minimum number of grid points, boundary-fitted coordinates are employed. A major question is how to prescribe tidal boundary conditions at the Bay Bridge...

Delaware Tests New Household Septic Design

Advanced Identification of Wetlands and Sensitive Aquatic Sites
Region III EPA has implemented advanced identification studies in various locations of its five state area with the majority of the studies focused within the coastal zone. Two such studies...

Practical Application of Acoustic Doppler Profilers
This paper discusses the advantages and limitations of the acoustic Doppler current profiler (ADCP), and it reviews some of the experience gained to date with the ADCP relevant to currents...

A Tidal Hydraulic Model of the C&D Canal
The Kalman filter combined with one-dimensional shallow water wave equation is applied to describe the tidal hydraulic behavior of the Chesapeake Bay and Delaware bay canal. This model...

Effect of Atmospheric Forcing on Tide Propagation
This paper presents computations and observations indicating that nonlinear interaction with wind waves and subtidal sea level changes can change estuarine motion in the tidal frequency...

Minimizing the Impact of Salinity Intrusion Due to Sea Level Rise
A rise in sea level will cause saline water to intrude up estuaries including those adjacent to aquifers with major pumping centers. During a drought a significant amount of saline estuary...

Performance of a Perched Beach—Slaughter Beach, Delaware

The NOS Experience in Real-Time Measurements of Tidal Currents
NOAA'S National Ocean Service (NOS) uses the term RADS, Remote Acoustic Doppler Sensing, for a new class of oceanographic instruments that uses acoustic backscatter to probe...

A Comparative Framework for Understanding Estuary Governance: Theory and Examples
The University of Rhode Island is conducting a three-year interdisciplinary study funded by Sea Grant to describe and compare the conditions, uses and experience of governance in four...

Upper Delaware River Ice Control—A Case Study
During February 1981 a castastrophic breakup ice jam occurred along a reach of the Delaware River near Port Jervis, NY, causing 14. 5 million in damages. In February 1982 another breakup...

Effect of Irrigated Agriculture on Ground-Water Quality in the Appalachian and Northeastern States
Irrigation acreage has more than doubled in Virginia, North Carolina, Delaware and Maryland in the last 10 years. Ground-water studies have been conducted in Delaware, Maryland and New...

Effect of Best Management Practices on Water Quality in the Appoquinimink Watershed
As part of its 208 program related work, the Water Resources Agency for New Castle County, Delaware, has been involved in an agricultural nonpoint source pollution control program since...

Effect of Agricultural Drainage on Surface Water Quality in Delaware
Parts of Kent and Sussex counties, Delaware, require drainage to have productive agricultural soils. Drainage has been installed on the Delmarva Peninsula since colonial days. Drainage...

 

 

 

 

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