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Hydrology

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Articles 1261 - 1290 of 1905

Full-Text Articles in Geology

Annual Report Of Nebraska-1990, Karl E. Starch, Raymond R. Burchett Jan 1990

Annual Report Of Nebraska-1990, Karl E. Starch, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Groundwater Levels In Nebraska, 1989, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley Jan 1990

Groundwater Levels In Nebraska, 1989, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Academic Year 1989-90 Jan 1990

Resource Notes-Academic Year 1989-90

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Diatomaceous Earth Deposits In Nebraska, R. R. Burchett Jan 1990

Diatomaceous Earth Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Gypsum Deposits In Nebraska, R. R. Burchett Jan 1990

Gypsum Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Limestone Deposits In Nebraska, R. R. Burchett Jan 1990

Limestone Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Permian System In Nebraska, R. R. Burchett Jan 1990

The Permian System In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Sand And Gravel Deposits In Nebraska, R. R. Burchett Jan 1990

Sand And Gravel Deposits In Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Topographic Maps, 1 X 2 Degree Series, R. R. Burchett Jan 1990

Topographic Maps, 1 X 2 Degree Series, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Analysis And Numerical Simulation Of The Ground Water System At The Bonneville Navigation Lock Site, Oregon, Dirk Baron Jan 1990

Analysis And Numerical Simulation Of The Ground Water System At The Bonneville Navigation Lock Site, Oregon, Dirk Baron

Dissertations and Theses

As part of the new navigation lock for Bonneville Dam a new water source for the Bonneville Fish Hatchery must be supplied. The hatchery is located on the Oregon side of the Columbia River downstream of the dam. It requires large quantities of water free from chemical and biological contamination. In addition, the water has to be in a narrow temperature range. Currently the fish hatchery receives its water from a well field that is located on the alluvial terrace downstream of Bonneville Dam. The well field lies in the proposed approach channel for the new lock and has to …


Regionalization Of Flood Data Using Probability Distributions And Their Parameters, Nageshwar Rao Bhaskar, Carol Alf O'Connor, Harold Andrew Myers, William Paul Puckett Dec 1989

Regionalization Of Flood Data Using Probability Distributions And Their Parameters, Nageshwar Rao Bhaskar, Carol Alf O'Connor, Harold Andrew Myers, William Paul Puckett

KWRRI Research Reports

The U. S. Geological survey recently used the method of residuals to delineate seven flood regions for the State of Kentucky. As an alternative approach, the FASTCLUS clustering procedure of the Statistical Analysis system (SAS) is used in this study to delineate five to six cluster regions in conjunction with statistical properties of the AMF series, like the coefficient of variation as estimated using method of L-moments, LCV, the parameters of the EVl and GEV flood frequency distributions, and the specific mean annual flood, QSP. For both cluster and USGS flood regions, regionalized flood frequency growth curves are developed and …


Groundwater Levels In Nebraska, 1988, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley Oct 1989

Groundwater Levels In Nebraska, 1988, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Geographic Information Systems, Data, And Water Resources, Dwight A. Brown, Philip J. Gersmehl Jan 1989

Geographic Information Systems, Data, And Water Resources, Dwight A. Brown, Philip J. Gersmehl

Journal of the Minnesota Academy of Science

ABSTRACT-We evaluate three data handling methods for use in a GIS analysis of land-cover change impacts on runoff. A universe of 2560 point samples is analyzed to provide runoff calculations that would se1:7e _as a comparison base to evaluate different attribute logic systems. The attribute logics ~e evaluate are two va~1at1ons of tag and one of count. We chose a two by five mile area of Dakota County, Mmnesota as the test site, and prepared raster GIS maps of soil hydrologic groups and two plausible land covers. The count 1:1~thod for handling the generalization of data produced results that were …


Origin And Developmental History Of Minnesota Lakes, H. E. Wright Jr. Jan 1989

Origin And Developmental History Of Minnesota Lakes, H. E. Wright Jr.

Journal of the Minnesota Academy of Science

ABSTRACT-Most lakes in Minnesota owe their origin directly or indirectly to glacial deposition or erosion 10,000 to 20,000 years ago. The lakes' shapes have since been modified by waves and currents near the shores and by the deposition of sediment off-shore-principally the sediment produced by growth of algae and other organisms. This sediment is a receptacle for pollen grains blown into the lake from the surrounding vegetation, and the stratigraphic succession of pollen grains records the postglacial vegetational and thus climatic history of the area. The sediment also preserves the fossils of microorganisms that reveal by their chemical composition the …


A Hydrologic Model For Minnesota Peatlands, Kenneth N. Brooks, Dawn R. Kreft Jan 1989

A Hydrologic Model For Minnesota Peatlands, Kenneth N. Brooks, Dawn R. Kreft

Journal of the Minnesota Academy of Science

ABSTRACT-The Peatland Hydrologic Impact Model (PHIM) is a continuous simulation computer model developed over a twelve-year period to aid hydrologists in understanding the hydrologic functions of peatlands and upland-peatland watersheds. An initial conceptual model defined the research needed to create the working m?del. The re~e_arch has become an iterative process of model design, field work, model refinement, ~ode! test1?g, an~ add1t1?nal field work. The model is as physically-based as possible while relying on data mput that 1s readily available to the natural resources community. It simulates streamflow response of peatlands, upland-peatland systems, mined peatlands, and a combination of these watershed …


Late Pennsylvanian And Early Permian Cyclic Sedimentation, Paleogeography, Paleoecology, And Biostratigraphy In Kansas And Nebraska, Roger K. Pabian, Robert F. Diffendal, Jr. Jr. Jan 1989

Late Pennsylvanian And Early Permian Cyclic Sedimentation, Paleogeography, Paleoecology, And Biostratigraphy In Kansas And Nebraska, Roger K. Pabian, Robert F. Diffendal, Jr. Jr.

Robert F. Diffendal, Jr., Publications

Overview of Upper Pennsylvanian Cyclic Sedimentation in Kansas and Nebraska, Philip H. Heckel, Department of Geology, University of Iowa, Iowa City, Iowa

With contributions from:

Christopher G. Maples and W. Lynn Watney, Kansas Geological Survey, Lawrence, Kansas

John Harris, Shell Western Exploration and Production, Inc., Houston, Texas

David Ball, Champlin Petroleum Company, Houston, Texas

Philip H. Heckel, University of Iowa, Iowa City, Iowa

R. R. West, V. Voegeli, S. Roth, K. Leonard, H. R. Feldman, and C. Cunningham, Kansas State University, Manhattan, Kansas

Royal H. Mapes, Ohio University, Athens, Ohio

Hans-Peter Schultze, University of Kansas, Lawrence, Kansas

R. Matt Joeckel, …


Lake Maloney Quadrangle, Nebraska--Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr. Jan 1989

Lake Maloney Quadrangle, Nebraska--Lincoln County, 7.5 Minute Series (Topographic), Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

7.5 minute series (topographic)

100° 45' to 100° 52' 30"

41° 00' to 41° 07' 30"

Includes Ogallala Outcrops (pencil)


Johnson County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1989

Johnson County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Landscape Assessment Of Soil Erosion And Nonpoint Source Pollution, Ian D. Moore, John L. Nieber Jan 1989

Landscape Assessment Of Soil Erosion And Nonpoint Source Pollution, Ian D. Moore, John L. Nieber

Journal of the Minnesota Academy of Science

ABSTRACT-The hydrologic processes occurring in the landscape are a manifestation of its topographic attributes. Spatially variable topographic-based attributes permit the distribution of hydrologic and nonpoint source pollution processes to be mapped within catchments. They can be derived from Digital Elevation Models (DEMs) using a variety of Terrain Analysis Methods (TAMs). The relationships between topographic indices and the spatial distribution of the potential for surface runoff, groundwater recharge, soil erosion, and evapotranspiration are graphically illustrated.


Residence Times Of Minnesota Groundwaters, Scott C. Alexander, E. Calvin Alexander Jr. Jan 1989

Residence Times Of Minnesota Groundwaters, Scott C. Alexander, E. Calvin Alexander Jr.

Journal of the Minnesota Academy of Science

ABSTRACT-Tritium, 14C, and nitrate analyses for eighty groundwater samples from selected Minnesota aquifers indicate a range of residence times from a few days or weeks to tens of thousands of years. The presence of significant nitrate contamination in groundwater is confined to recent or mixed groundwaters. Isotopic studies can yield information that will be useful in the design of effective groundwater protection plans in Minnesota.


Gage County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1989

Gage County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource Notes-Academic Year 1988-89 Jan 1989

Resource Notes-Academic Year 1988-89

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Oil In Nebraska, M. P. Carlson Jan 1989

Oil In Nebraska, M. P. Carlson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Mineral Operations Review, 1988, Raymond R. Burchett, Duane A. Eversoll Jan 1989

Nebraska Mineral Operations Review, 1988, Raymond R. Burchett, Duane A. Eversoll

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1987)/Registered Irrigation Wells In Nebraska (As Of January 1, 1988), Conservation Survey Division Jan 1989

Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1987)/Registered Irrigation Wells In Nebraska (As Of January 1, 1988), Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Mineral Yearbook Of Nebraska-1989, Karl Starch, Raymond R. Burchett Jan 1989

Mineral Yearbook Of Nebraska-1989, Karl Starch, Raymond R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Pawnee County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1989

Pawnee County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Otoe County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1989

Otoe County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nemaha County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1989

Nemaha County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Natural Resources District Boundaries, Nebraska Natural Resources Commission Jan 1989

Nebraska Natural Resources District Boundaries, Nebraska Natural Resources Commission

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.