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Oregon: basic data for thermal springs and wells as recorded in GEOTHERM (open access)

Oregon: basic data for thermal springs and wells as recorded in GEOTHERM

This sample file contains 346 records for Oregon. The records contain data on location, sample description, analysis type, collection condition, flow rates, and chemical and physical properties of the fluid. Stable and radioactive isotope data are occasionally available. (ACR)
Date: May 1, 1983
Creator: Bliss, J. D.
Object Type: Report
System: The UNT Digital Library
Debris Flow Hazard Assessment for the Oregon Caves National Monument (open access)

Debris Flow Hazard Assessment for the Oregon Caves National Monument

From introduction: Of the various hydrologic hazards in our environment, the mass movement of earth material caused by excess moisture can be one of the most destructive. These events often go unnoticed because they occur in unpopulated mountainous terrain during winter seasons. This was not the case in December 1964, when a major debris flow occurred in the Cave Creek drainage of the Oregon Caves National Monument. In March 1982, the National Park Service (NPS) requested a study be made to appraise the possibility of a recurrence of the 1964 debris flow in the interest of safeguarding the public and employees of the National Park Service.
Date: 1983
Creator: Friday, John
Object Type: Report
System: The UNT Digital Library
Ground-Water Resources in the Hood Basin, Oregon (open access)

Ground-Water Resources in the Hood Basin, Oregon

From introduction: This study was made in cooperation with the planning departments of Wasco and Hood River Counties, The purposes of this report are (1) to describe the occurrence, movement, availability, and quality of ground water in the basin; and (2) to assess, where possible, the extent, thickness, hydrologic boundaries, and hydraulic properties of the principal aquifers.
Date: 1983
Creator: Grady, Stephen J.
Object Type: Report
System: The UNT Digital Library
Magnitude and Frequency of Floods in Eastern Oregon (open access)

Magnitude and Frequency of Floods in Eastern Oregon

From purpose and scope: This report describes methods for estimating the magnitude and frequency of floods at ungaged sites on streams with unregulated flow in eastern Oregon. The purpose is to provide a method to estimate flood magnitude and frequency and to present the supporting data. The report is based on data from nearly all unregulated streams (or data from regulated streams prior to their regulation) where gaging stations have been operated.
Date: 1983
Creator: Harris, D. D. & Hubbard, Lawrence E.
Object Type: Report
System: The UNT Digital Library
Storm Runoff as Related to Urbanization Based on Data Collected in Salem and Portland, and Generalized for the Willamette Valley, Oregon (open access)

Storm Runoff as Related to Urbanization Based on Data Collected in Salem and Portland, and Generalized for the Willamette Valley, Oregon

Abstract: Storm runoff as related to urbanization is defined by a series of regression equations for Salem and for the Willamette Valley, Oregon. In addition to data from 17 basins monitored in the Salem area, data from 24 basins gaged in a previous study in Portland, Oregon-Vancouver, Washington were used defining the Willamette Valley equations. Basins used to define equations ranged in size from 0.2 to 26 square mi. Rainfall intensity varied from 1.8 to 2.2 in. for the 6-hour, 0.020 exceedance probability. Sensitivity analyses of equations indicate that urbanization of an undeveloped basin can increase peak discharge more than three times and almost double runoff volume. Much of Portland and Vancouver are located on porous river terraces where dry wells are used to shunt runoff. Much of east Salem is located on previously farmed land where drain tiles used to dewater soils still connect directly to streams.
Date: 1983
Creator: Laenen, Antonius
Object Type: Report
System: The UNT Digital Library
Drumming Behavior of Selected North American Stoneflies (Plecoptera) (open access)

Drumming Behavior of Selected North American Stoneflies (Plecoptera)

Drumming is first described for five North American stonefly species, Acroneuria evoluta, Doroneuria baumanni, Isoperla namata, Chernokrilus misnomus, and Pictetiella expansa. Signals of Acroneuria lycorias, Phasganophora capitata and Isoperla signata are further described. Drumming was not recorded from Amhinemura delosa. Signals of A. evoluta are the most complex yet recorded in Plecoptera. Doroneuria baumanni, P. expanse, C. misnomus and P. capitata have 2-way exchanges. Male D. baumanni produce two prolonged beats by rubbing the hammer on the substratum; male-female signals are non-overlapping in the first two species and overlapping in the latter two. Female P. capitata answered with an unusually long sequence of beats. Two male Isoperla species produced monophasic calls without female answers. Female A. lycorias answered taped male signals with monophasic signals like all observed females.
Date: December 1983
Creator: Maketon, Monchan
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Columbia River Estuary Hybrid Model Studies: Report 1, Verification of Hybrid Modeling of the Columbia River Mouth (open access)

Columbia River Estuary Hybrid Model Studies: Report 1, Verification of Hybrid Modeling of the Columbia River Mouth

From abstract: The Columbia Hybrid Modeling System was applied to the mouth of the Columbia River estuary to evaluate alternatives for reducing navigation channel maintenance dredging.
Date: September 1983
Creator: McAnally, William H., Jr.; Brogdon, Noble J., Jr.; Letter, Joseph V., Jr.; Stewart, J. Phillip & Thomas, William A.
Object Type: Report
System: The UNT Digital Library
Hydrology of the Newberry Volcano Caldera, Oregon (open access)

Hydrology of the Newberry Volcano Caldera, Oregon

From abstract: Precipitation in the Newberry caldera is nearly in balance with evaporation, evapotranspiration, and and streamflow. A small surplus of water, estimated to be in the range 2,500 to 6,500 acre-feet, is available annually for recharge to deep aquifers beneath the caldera floor.
Date: 1983
Creator: Sammel, Edward A. & Craig, Robert W.
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.b1433.0334]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Carol Parron applies varnish to one of the wooden horses that rides on the carousel she restored in Portland, OR."
Date: 1983
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History