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376 - 400 of 881 Items << < 11 12 13 14 15 16 17 18 19 20 > >>
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Observations of internal solitary waves (ISWs) and of their role in sediment
resuspension during the Coastal Mixing and Optics 1996 (CMO 96) experiment are
reported. The largest resuspension events observed in the experiment can be related to...
2005 (iso8601)
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Using remotely-sensed metrics to identify regions containing high animal diversity and/or specific animal species
or guilds can help prioritize forest management and conservation objectives across actively managed landscapes.
We predicted avian...
2014-05-05 (iso8601)
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The morphology and genesis of soils of the Willamette series
and of some Willamette-associated soils and their relationships to
geomorphic surfaces were studied in an area near McCoy, Polk
County, Oregon. Influences of regional extent, such as...
1970-03-31 (iso8601)
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Side-scan sonar records in Oregon's Coos Bay estuary navigation
channels were obtained at intervals of two to three months during the
November 1974 - October 1975 time period from Coos Bay Channel Mile
11+50 to 15+20, and from a reach in the...
1976-04-16 (iso8601)
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In order to develop three models for use in quantifying the
environmental conditions of reforestation, extensive measurements
required for energy balance calculations were taken for a
reforestation site in southwest Oregon. The models are used to...
1986-05-05 (iso8601)
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Estimates of average annual precipitation (AAP) are-needed for hydrologic modeling at
Yucca Mtn., Nevada, site of a proposed, high-level nuclear waste repository. Historical
precipitation data and station elevation were obtained for stations in...
1990-05-22 (iso8601)
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Knowledge of old-growth Juniperus occidentalis woodlands, which occur in central and eastern Oregon, is limited. Wise management of these woodlands necessitates a better understanding of the community ecology. The community structure of woodlands...
1998-09-25 (iso8601)
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Predictive models of microclimate under various site conditions in forested headwater stream – riparian areas are poorly developed, and sampling designs for characterizing underlying riparian microclimate gradients are sparse. We used riparian...
2011 (iso8601)
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Descriptions of the fire regime in the Douglas-fir/western hemlock region of the Pacific Northwest traditionally have emphasized infrequent, predominantly stand-replacement fires and an associated linear pathway of stand development, where all...
2010-09-03T16:00:24Z (iso8601)
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The 3-PGS (physiological principles for predicting growth using satellite data) model generates monthly estimates of transpiration, photosynthesis, and net primary production (NPP), the latter derived as a fixed proportion (0.47) of gross...
2001 (iso8601)
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Eight cougars were radio-collared and monitored during 1985 - 1987. Home range size, determined by minimum convex polygons, averaged 153.1 km2 for females, 543.5 km2 for males. Core home range size, determined by harmonic mean analysis, averaged...
1991-12-16 (iso8601)
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The development of personal computer software
coupled to an analytical stereoplotter allows major gains
in efficiency and accuracy in a number of forestry related
subjects. This thesis describes the operation of a system
developed by Carto...
1991-08-26 (iso8601)
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Patterns of western hemlock regeneration were studied in relation to forest structural development and environment in the Oregon Coast Range. Density of western
hemlock seedlings was examined across the climatic gradient from cool, moist coastal...
1998-02-13 (iso8601)
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Several state and federal agencies have identified Oregon's coastal wetlands as
priority areas for conservation, and in some cases have specifically singled out
nontidal (mostly palustrine) wetlands as a major concern. Recent research has...
2005-07-22 (iso8601)
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Six headwalls in the central Oregon coast range were selected for study of soil engineering properties and vegetative
characteristics important for analysis of slope stability. The headwalls were considered representative of those which would be...
1990-11-29 (iso8601)
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Nehalem Bay is located on the northern coast of Oregon in Tillamook County and contains approximately 243 ha of salt marsh. The Nehalem marshes occur as islands and land-tied units. West Island is the largest marsh island with an area of 82.9 ha...
1974-11-16 (iso8601)
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From the 1920's through 1951 several severe fires occurred in the predominantly conifer forest ecosystems of the northern Oregon Coast Range. Of the 211,151 ha. of mapped area, 57 percent was burned. The effects of frequent fires with high...
1997-07-11 (iso8601)
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Methodology for the utilization of LANDSAT-1 imagery and aerial photography on the environmental evaluation of water resources development is presented. Environmental impact statements for water resource projects were collected and reviewed for...
2011-07-01
2011-07-01 1976-09-01 |
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Map of catchment areas & valleys of Rio Grande Del Norte, of "Upper Rio Grande," the 160 miles Section in Colorado, and of "Middle Rio Grande," the 250 miles Section in New Mexico, above the U.S.R.S. "Elephant Butte" Project in Lower Valleys....
2024-10-31
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58 x 46, on sheet 88 x 84 cm., fold. in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Contour interval 20 feet." "Prepared in cooperation with the U.S. Atomic Energy Commission." Title on envelope: Geologic map of the Oak Spring...
1963-10-31
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38 x 48 cm. Relief shown by hachures and spot heights. "Atlas sheet no. 53(C)." "Issued May 7th 1877." "1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army." Prime meridians: Greenwich and Washington, D.C. Includes sectional diagram that...
1877-05-07
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'Prepared by the U.S. Department of the Interior, Geological Survey, in cooperation with the U.S. Department of Housing and Urban Development, Federal Insurance Administration. 1973.' Sheet 1: Las Vegas NE, Nev.; Sheet 2: Las Vegas SE, Nev.;...
1973-10-31
1973-10-31 |
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'Chief Engineers Office, Los Angeles, Calif. August 4, 1931. Scale: 1"=100'. Drawn by L.P.D. 1"=10'.' Accompanies: Letter from R. L. Adamson to F. H. Knickerbocker, August 18, 1931 (Folder 6B: 18-1-9).
1931-08-04
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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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a three-part predictive strategy has been designed for the Scenic Area, one that delineates areas as being of high, moderate, or low probability for the presence of cultural resources. This approach is designed both on the known probability of...
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