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576 - 600 of 881 Items << < 19 20 21 22 23 24 25 26 27 28 > >>
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Observations of currents, hydrography, and turbulence provide unambiguous evidence for hydraulic control of flow over an isolated three-dimensional topographic feature on Oregon’s continental shelf. The flow becomes critical at the crest of the...
2001-03-15 (iso8601)
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In this article we analyze the momentum and vorticity balances of a numerical
simulation of the upwelling circulation off central Chile (34° –40°S) and its response to
interannual local wind changes. Our analysis indicates that the path of the...
2003 (iso8601)
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Forest understory vegetation is influenced by broad-scale variation in climate, intermediate-scale
variation in topography, disturbance and neighborhood interactions. However, little is known about
how these multi-scale controls interact to...
2014-12-19 (iso8601)
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A study was initiated in 1961 to characterize seral plant
communities in a part of the Cedar Creek drainage in the Tillamook
Burn. Stratification of vegetation into ecological units was a necessary
first step in conifer-animal damage studies...
1963-05-22 (iso8601)
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Investigations were conducted to (1) determine the original
pattern of deposition and thickness of ash in the Ochoco and Blue
Mountain areas of Oregon, (2) determine if discontinuities exist in
the parent material of these soils, (3) determine the...
1970-07-20 (iso8601)
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Subsurface mapping was used to determine the structure and
geologic history of the South Cuyama dome and part of the Russell
fault in the South Cuyama oil field area. Deformed Late Cretaceous
and/or early Tertiary marine strata are unconformably...
1983-05-06 (iso8601)
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We investigated the potential use of airborne light detection and ranging (LiDAR) data to predict key wood fiber properties from extrinsic indicators in lodgepole pine leading forest stands located in the foothills of central Alberta, Canada. Six...
2012-04-19 (iso8601)
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Rainfall interception is a primary control over the moisture input to a forested ecosystem through the partitioning of precipitation into throughfall, stemflow, and an evaporated component (i.e. the interception loss). Rainfall interception is a...
2012-06-12 (iso8601)
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In this paper, we derive the fundamental solution to the heat equation with a discontinuous diffusion coefficient in the free space, with an absorbing boundary, and with a reflecting boundary. We use the fundamental solution with an absorbing...
2011-06-13 (iso8601)
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There are approximately 4,000,000 acres of cut-over and burned-over land in western Washington and Oregon which are either non-stocked or unsatisfactorily stocked with young forest growth. This brings about a great need for a quick and efficient...
1952-05-13 (iso8601)
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The fire regimes of a 9,000 hectare study area on the east side of the Southern Oregon
Cascades are described. Fire regime parameters included are frequency, extent, and predictability of fire return interval. Severity of two fires is mapped by...
1998-11-13 (iso8601)
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Windthrow has been studied extensively as a cause of mortality and as a landscape
disturbance agent in temperate forests throughout the United States. The effects of
windthrow mortality on stand species composition and structure, forest...
2005-06-03 (iso8601)
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Because of their potential for adversely affecting aquatic resources, increased rates of
erosion and sedimentation associated with low-volume forest roads have recently gained the
attention of land managers in the Pacific Northwest. For example,...
1998-06-19 (iso8601)
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The systems currently available for forest road design are not capable of
making computer-aided design judgments such as: 1) automated generation of
alternative grade lines, 2) optimizing vertical alignment, 3) minimizing total cost of...
2003-03-31 (iso8601)
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Prediction of flow is necessary for planning and management of water resources. The objective of this study is to estimate mean annual flows for the USA and mean monthly flows for the rivers of central Texas based on the precipitation and their...
2004-09-29
2004-09-29 2003-12-01 2004-09-29 |
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58 x 46 cm., on sheet 79 x 91 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Prepared in cooperation with the U.S. Atomic Energy Commission." "Base by U.S. Geological Survey, 1962." "Geology mapped in 1963."...
1968-10-31
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58 x 46 cm., on sheet 84 x 81 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Geology by P.P. Orkild, 1959-60, paleotopography by D.L. Healey and C.H. Miller, 1959-60." Series statement from envelope. Includes...
1963-10-31
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58 x 47 cm., on sheet 86 x 81 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Geology mapped in 1961." Includes description of map units, 2 col. cross sections, and quadrangle location map.
"Prepared in cooperation...
1964-10-31
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'BLM edition, 1994.' 'Surface management status; mineral management status.' '1:100,000-scale topographic map showing highways, roads and other manmade structures; water features; contours and elevations in meters with conversions to feet; BLM...
1994-10-31
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Genre/Form: Topographic map. Scale 1:96,000 (W 115°30´--W 114°45´/N 36°30´--N 36°00´). 1 map ; 58 x 70 cm. Series: Water-supply paper (Washington, D.C.) ; 1780. Relief shown by contours. "After C.R. Longwell (written communication, 1954, fig....
1965-10-31
1965-10-31 |
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'Hydrogeology by F.E. Rush, 1968. Geology adapted from Longwell and others 1965.' In lower left corner: ' Base: U.S. Geological Survey 1:250,000 topographic series; Las Vegas (1954).' At top of map: 'United States Department of the Interior,...
1968-10-31
1968-10-31 |
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Nevada exhibits of the AZ v. CA case before the U. S. Supreme Court. The exhibits include topographic maps, photomaps, excerpts from correspondence and other published documents, and charts.
1958-05-06
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Map of the Las Vegas area showing the locations most likely to be flooded.
1973-10-31
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the jurisdiction of the Department previously classified and set aside as forest lands, power and water reservations, stock driveways, and mineral lands also are in need of further study to determine in detail specific uses to which they are best...
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The silt content of most streams is low except during the spring, flood run-off and in those cases where mine mill wastes are discharged into them. The problems raised by the latter conditions are serious on the upper Clark Fork River in the...
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