Publications
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Technique for estimating magnitude and frequency of floods in Delaware
A flood-estimating method is presented which applies to drainage basins in Delaware without urban development and covers selected recurrence intervals from 2 to 100 years. The method was developed by multiple-regression techniques. The State is divided into two regions and sets of equations for calculating peak discharges based on physical basin characteristics are provided for each region. The bo
Authors
R.H. Simmons, D.H. Carpenter
Combined use of digital aquifer models and field base-flow data to identify recharge-leakage areas of artesian aquifers
As a result of continuous pumping since the 1890's, a regional cone of depression encompassing 363 km2 has developed within the artesian Miocene Cheswold aquifer at Dover, Del. The aquifer is not being recharged significantly by leakage near the center of the cone, nor is major recharge induced in the updip subcrop area. The source of pumped water is apparently an area of about 65 km2 northwest of
Authors
Richard H. Johnston, P. Patrick Leahy
Wading birds as biological indicators: 1975 colony survey
No abstract available.
Authors
Thomas W. Custer, Ronald G. Osborn
Improving estimates of streamflow characteristics by using Landsat-1 imagery
Imagery from the first Earth Resources Technology Satellite (renamed Landsat-1) was used to discriminate physical features of drainage basins in an effort to improve equations used to estimate streamflow characteristics at gaged and ungaged sites. Records of 20 gaged basins in the Delmarva Peninsula of Maryland, Delaware, and Virginia were analyzed for 40 statistical streamflow characteristics. Eq
Authors
Este F. Hollyday
Water resources data Maryland and Delaware, water year 1974, Part 2. Water quality records
No abstract available.
Authors
Water resources data for Maryland and Delaware, water year 1974, Part 1. Surface water records
No abstract available.
Authors
Water resources data Maryland and Delaware, water year 1973, Part 2. Water quality records
No abstract available.
Authors
Water resources data Maryland and Delaware, water year 1972, Part 2. Water quality records
No abstract available.
Authors
Land use information and air quality planning
The pilot national land use information system developed by the U.S. Geological Survey in the Central Atlantic Regional Ecological Test Site project has provided an improved technique for estimating emissions, diffusion, and impact patterns of sulfur dioxide (SO2) and particulate matter. Implementation of plans to control air quality requires land use information, which, until this time, has been
Authors
Wallace E. Reed, John E. Lewis
Interpretation, compilation and field verification procedures in the CARETS project
The production of the CARETS map data base involved the development of a series of procedures for interpreting, compiling, and verifying data obtained from remote sensor sources. Level II land use mapping from high-altitude aircraft photography at a scale of 1:100,000 required production of a photomosaic mapping base for each of the 48, 50 x 50 km sheets, and the interpretation and coding of land
Authors
Robert H. Alexander, Peter W. De Forth, Katherine A. Fitzpatrick, Harry F. Lins, Herbert K. McGinty