Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 4,471
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Year Published: 1988

Use of GIS technologies in addressing resource management problems in Mobile Bay, Alabama

Geographic Information Systems (GIS) technologies are being used in three neutral resource management studies of Mobile Bay, AL. Each study is briefly discussed. In the first, the GIS was used to analyze wetland habitat changes in the bay over a 25-year period. In the second, cartographic modeling techniques are being used to assess the potential...

Watzin, Mary C.; Roscigno, P.F.; Scurry, James D.; Roach, E. Randy

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Year Published: 1988

Aircraft MSS data registration and vegetation classification of wetland change detection

Portions of the Savannah River floodplain swamp were evaluated for vegetation change using high resolution (5a??6 m) aircraft multispectral scanner (MSS) data. Image distortion from aircraft movement prevented precise image-to-image registration in some areas. However, when small scenes were used (200-250 ha), a first-order linear transformation...

Christensen, E.J.; Jensen, J.R.; Ramsey, Elijah W.; Mackey, H.E.
Aircraft MSS data registration and vegetation classification of wetland change detection; 1988; Article; Journal; International Journal of Remote Sensing; Christensen, E.J.; Jensen, J.R.; Ramsey, E.W., III; Mackey, H.E., Jr.

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Year Published: 1988

Environmental impacts and regulatory policy. Implications of spray disposal of dredged material in Louisiana wetlands

The capabilities of a new wetland dredging technology were assessed along with associated newly developed state and federal regulatory policies to determine if policy expectations realistically match the technological achievement. Current regulatory practices require amelioration of spoil bank impacts upon abandonment of an oil/gas well, but this...

Cahoon, Donald R.; Cowan, J.H.

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Year Published: 1988

Fuelwood production and use in rural Swaziland: a case-study of two communities

Information of fuelwood consumption and the local production of wood was collected in two small rural communities in Swaziland. Fuelwood consumption was estimated to be 0.77 t persona??1 yeara??1 in one community (Sigombeni), and 0.63 t persona??1 in the other (Bhekinkhosi). Bhekinkhosi was found to be experiencing a significant fuelwood...

Allen, J.A.; Pimentel, D.P.; Lasoie, J.P.
Fuelwood production and use in rural Swaziland: a case-study of two communities; 1988; Article; Journal; Forest Ecology and Management; Allen, J.A.; Pimentel, D.P.; Lasoie, J.P.

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Year Published: 1988

Habitat islands and the equilibrium theory of island biogeography: testing some predictions

Species-area data from a study of marsh birds are used to test five predictions generated by the equilibrium theory of island biogeography. Three predictions are supported: we found a significant species-area relationship, a non-zero level of turnover, and a variance-mean ratio of 0.5. One prediction is rejected: the extinction rates were not...

Brown, M.; Dinsmore, J.J.
Habitat islands and the equilibrium theory of island biogeography: testing some predictions; 1988; Article; Journal; Oecologia; Brown, M.; Dinsmore, J.J.

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Year Published: 1987

Discharge ratings for control gates at Mississippi River Lock and Dam 18, Gladstone, Illinois

The water level of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 18, at Gladstone, Illinois, were developed from current meter discharge measurements made in the forebays of the gate structures. Methodology is given to...

Heinitz, A.J.
Discharge ratings for control gates at Mississippi River Lock and Dam 18, Gladstone, Illinois; 1987; WRI; 87-4110; Heinitz, A. J.

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Year Published: 1987

Discharge ratings for control gates at Mississippi River lock and dam 17, New Boston, Illinois

The water levels of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 17, at New Boston, Illinois, were developed from current meter discharge measurements made in the forebays of the gate structures. Methodology is given...

Heinitz, A.J.
Discharge ratings for control gates at Mississippi River lock and dam 17, New Boston, Illinois; 1987; WRI; 87-4165; Heinitz, A. J.

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Year Published: 1987

Discharge ratings for control gates at Mississippi River lock and dam 21, Quincy, Illinois

The water levels of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 21, at Quincy, Illinois, were developed from current meter discharge measurements made in the forebays of the gate structures. Methodology is given to...

Heinitz, A.J.
Discharge ratings for control gates at Mississippi River lock and dam 21, Quincy, Illinois; 1987; WRI; 87-4155; Heinitz, A. J.

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Year Published: 1987

Floods in Iowa: Stage and discharge

This report presents stations descriptions and tables of peak stages and discharges for 280 continuous- and partial-record gaging stations in Iowa. Data for the annual flood series for each gaging station and partial-duration series, at stations where available, are contained in the report.

Lara, O.G.; Eash, D.A.
Floods in Iowa: Stage and discharge; 1987; OFR; 87-382; Lara, O. G.; Eash, D. A.

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Year Published: 1987

Iowa ground-water quality

The population served by ground-water supplies in Iowa (fig. L4) is estimated to be about 2,392,000, or 82 percent of the total population (U.S. Geological Survey, 1985, p. 211). The population of Iowa is distributed fairly uniformly throughout the State (fig. IB), with 59 percent residing in rural areas or towns of less than 10,000 (U.S. Bureau...

Buchmiller, R.C.; Squillace, P.J.; Drustrup, R.D.
Iowa ground-water quality; 1987; OFR; 87-725; Buchmiller, R. C.; Squillace, P. J.; Drustrup, R. D.

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Year Published: 1987

Method for estimating the magnitude and frequency of floods at ungaged sites on unregulated rural streams in Iowa

This report provides techniques and procedures for estimating the probable magnitude and frequency of floods at ungaged sites on Iowa streams. Physiographic characteristics were used to define the boundaries of five hydrologic regions. Regional regression equations that relate the size of the drainage area to flood magnitude are defined for...

Lara, O.G.
Method for estimating the magnitude and frequency of floods at ungaged sites on unregulated rural streams in Iowa; 1987; WRI; 87-4132; Lara, O. G.