Surveys of flora and fauna were conducted in riparian areas of six streams in the general vicinity of the Iron Mountain mine near Redding, California. The surveys were intended to provide part of the information needed for a natural resource damage assessment (NRDA), should such an assessment be desired at...
A temperature spectrum if heterogeneous freezing nuclei concentrations in continental air in the upper troposphere was determined based on airborne measurements. Numerical model simulations incorporating ice formation by heterogeneous and homogeneous freezing of deliquesced soluble aerosol particles were performed to investigate the effect of the heterogeneous freezing nuclei were predicted...
Oregon has thousands of culverts along mountainous roads that interact with perennial streams, intermittent streams, and intercepted subsurface flow from hill slopes. Culverts installed at stream crossings are designed to move water under the road and avoid failure of the fill. Similarly, ditch relief culverts transfer water through a road...
"The value of marine surveys in obtaining critical information on the biology of the Marbled Murrelet has recently been appreciated, largely due to the decline of the species and the need to develop recovery and management plans (Ralph et al. 1995, USFWS 1997). This report summarizes the results of 1997...
Sequential aerial photography was used to identify effects of hiking trails
on the spatial distribution of subalpine fir (Abies lasiocarpa) habitat at alpine treeline.
Vegetation change over a 46 year period was compared along trails relative to areas
without trails, at five study sites in the McDonald Creek drainage of...
"In 1984, Oregon State University's Department of Agricultural
and Resource Economics was again asked to make a winegrape acreage
survey in Oregon. Winegrape acreage is currently increasing
dramatically and the Wine Advisory Board (WAB) 1s Interested In
keeping track of these changes.
In 1981 and 1982 the Department made surveys...
We have compared in situ measurements
near the leading-edges of wave-clouds observed during
the SUCCESS experiment with numerical simulations.
Observations of high supersaturations with respect to ice (> 50%) near the leading edge of a very cold wave cloud (T < -60°C) are approximately consistent
with recent theoretical and laboratory...
The OSU Extension Soil Sensitivity Database lists
nonirrigated and irrigated soil sensitivity ratings for every
map unit of every soil survey in Oregon. These ratings
were developed for the Oregon Water Quality Decision
Aid, a tool for evaluating groundwater vulnerability to
The Oregon Water Quality Decision Aid (OWQDA) is
a first-tier screening tool that allows you to make a broad
determination of the likelihood that a specific chemical,
when applied to a specific Oregon soil, will move through
the soil and contaminate groundwater. The OWQDA
develops separate assessments of soil sensitivity...