Knowledge Core Collection:
https://hdl.handle.net/11681/46573
2024-03-29T14:59:40ZFloodplain tree species : a bibliographic literature search with abstracts
https://hdl.handle.net/11681/4855
Title: Floodplain tree species : a bibliographic literature search with abstracts
Authors: Bell, C. Ritchie; Morley, Jane
Description: Contract report; Abstract: A thorough review of the scientific and technical literature for the period 1950 through the present was conducted of the soil-water relationships of 25 "bottomland" or flood plain tree species commonly found in eastern North America. The 25 tree species, and a compiled list of 110 keywords associated with the flood plain environment of these species, guided the search of 6 computerized bibliographical data bases, 9 abstract and index listings, and 67 serial publications. A brief abstract of the 281 references found applicable to the subject topic is provided, as are the citations for 67 references of a more general nature. A matrix was generated which consists of the 25 tree species, and 13 soil and irater parameters, i.e. soil texture, soil moisture, soil chemistry, water table; soil type, flooding and plant physiology, plant age, flooding frequency and season, duration of inundation, flooding depth, water oxygen, seed germination, and general flooding. The number of the literature citation was entered in the matrix to expedite the use of this literature review for a specific species-factor interaction.1979-09-01T00:00:00ZGravity anomalies as indicators of groundwater reserves in glacial deposits
https://hdl.handle.net/11681/4856
Title: Gravity anomalies as indicators of groundwater reserves in glacial deposits
Authors: Richard, Benjamin H.; King, Alan D.; Contrino, Charles T.
Description: Contract report; Abstract: This study was conducted in terrain covered with glacial debris to determine the value of gravity measurements in the search for gravel deposits. The area used was a part of Ohio where there was considerable data available on the character of the glacial cover and the bedrock surface beneath. A residual gravity map was calculated for the area using 750 field stations. This map was compared to existing bedrock maps. The gravity low was over the Teays River Valley. Seismic refraction verified these conclusions and defined the shape of this preglacial valley. Two-dimensional gravity model studies were then conducted to determine if the lows within the major low were caused by high concentrations of gravel. The model studies suggest strongly that gravel is related to the greatest lows. The results indicate clearly that gravity exploration is the best first method of exploring for gravel in any area similar to the study area. Only about half of the field stations were necessary to find the gravel. Once gravity has been used to locate a gravel, other methods must be employed to quantitatively evaluate the prospect. The combination of gravity exploration for location followed by other methods for evaluation can greatly reduce the cost of exploration for gravel.1973-08-01T00:00:00ZPre-production model cartographic EBR System
https://hdl.handle.net/11681/4854
Title: Pre-production model cartographic EBR System
Authors: Grosso, P. F.; Tarnowski, A. A.
Description: Contract report; Abstract: The Pre-production Model Cartographic EBR System installed at the Hydrographic/Topographic Center in Washington, D.C. is a high speed, high resolution, recording lineal and raster data developed (DMA) to produce color separation and high resolution satellite and system capable of plotting both for the Defense Mapping Agency film masters for maps, charts aerial imagery from digital cartographic and image data on magnetic tape. The color separations are used to prepare press-ready printing plates for conventional multi-color printing presses for the printing of color charts and maps or to produce color composities of satellite imagery.1980-11-01T00:00:00ZLANDSAT D : Corps of Engineers interface with advanced NASA ground systems study
https://hdl.handle.net/11681/4853
Title: LANDSAT D : Corps of Engineers interface with advanced NASA ground systems study
Authors: General Electric. Space Division
Description: Contract report; Abstract: The object of the study was to determine and analyze alternative interface with the Landsat D ground data distribution system. The approach taken was to identify and define the requirements for data needed to meet the demands of the Civil Works Operation. These were then word as criteria for structuring alternative system options. The key issues emanating from the requirements portion of the study arc: perishability of the data volumes required in each district. Landsat D data path was investigated with regard to these data needs leading to identification of access paths and data availability. Also, a characterization of the media of data transmission was provided. This report discusses the parameters that must be considered to effectively evaluate the alternatives that are available to the COE for interfacing with the Landsat D data system. Key issues of several alternatives are characterized.1978-06-01T00:00:00Z