Conference Papers
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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes
The accumulation and melting of mountain snowpacks are major drivers of ecosystem processes in the Rocky Mountains. These include the influence of snow water equivalent (SWE) timing and amount of release on soil moisture for annual tree growth, and alpine stream discharge and temperature that control aquatic biota life histories. Snowfall also brings with it atmospheric deposition...
Authors
Daniel Fagre, Kathy Tonnessen, Kristi Morris, George Ingersoll, Lisa McKeon, Karen Holzer
Current research efforts in decision support system technology as applied to trumpeter swan management Current research efforts in decision support system technology as applied to trumpeter swan management
No abstract available.
Authors
Richard S. Sojda, J.E. Cornely, L. H. Fredrickson, A.E. Howe
Phosphate sorption by base metal hydroxides generated in the neutralization of acid mine drainage Phosphate sorption by base metal hydroxides generated in the neutralization of acid mine drainage
No abstract available at this time
Authors
P.L. Sibrell, P.R. Adler
11 things a geologist thinks an engineer should know about carbonate beaches 11 things a geologist thinks an engineer should know about carbonate beaches
A review is given on the geological aspects of carbonate beaches that a geologist thinks may be useful for an engineer. Though, Geologists not involved in engineering problems may find it difficult to know what an engineer should understand about carbonate beaches. Nevertheless, there are at least eleven topics that are potentially very useful for engineers to keep in mind. This paper...
Authors
R. B. Halley
A comparison of solute-transport solution techniques based on inverse modelling results A comparison of solute-transport solution techniques based on inverse modelling results
Five common numerical techniques (finite difference, predictor-corrector, total-variation-diminishing, method-of-characteristics, and modified-method-of-characteristics) were tested using simulations of a controlled conservative tracer-test experiment through a heterogeneous, two-dimensional sand tank. The experimental facility was constructed using randomly distributed homogeneous...
Authors
S. Mehl, M. C. Hill
A review of the contrasting behavior of two magmatic volatiles: Chlorine and carbon dioxide A review of the contrasting behavior of two magmatic volatiles: Chlorine and carbon dioxide
Chlorine (Cl) and carbon dioxide (CO2) are common magmatic volatiles with contrasting behaviors. CO2 solubility increases with pressure whereas Cl solubility shows relatively little pressure or temperature effect. CO2 speciation changes with silicate melt composition, dissolving as carbonate in basaltic magmas and molecular CO2 in more silicic compositions. In H2O-bearing systems, the...
Authors
J. B. Lowenstern
Abiotic and biotic controls of spatial pattern at alpine treeline Abiotic and biotic controls of spatial pattern at alpine treeline
At alpine treeline, trees and krummholz forms affect the environment in ways that increase their growth and reproduction. We assess the way in which these positive feedbacks combine in spatial patterns to alter the environment in the neighborhood of existing plants. The research is significant because areas of alpine tundra are susceptible to encroachment by woody species as climate...
Authors
George P. Malanson, Ningchuan Xiao, K.J. Alftine, Mathew Bekker, David R. Butler, Daniel G. Brown, David M. Cairns, Daniel Fagre, Stephen J. Walsh
Adjustment of total suspended solids data for use in sediment studies Adjustment of total suspended solids data for use in sediment studies
The U.S. Environmental Protection Agency identifies fluvial sediment as the single most widespread pollutant in the Nation's rivers and streams, affecting aquatic habitat, drinking water treatment processes, and recreational uses of rivers, lakes, and estuaries. A significant amount of suspended-sediment data has been produced using the total suspended solids (TSS) laboratory analysis...
Authors
G. Douglas Glysson, John R. Gray, L.M. Conge
Advances in biotelemetry technology in the Columbia River Basin and how they are providing behavioral data used to shape fisheries management Advances in biotelemetry technology in the Columbia River Basin and how they are providing behavioral data used to shape fisheries management
No abstract available
Authors
N.S. Adams, R.S. Shively, D.W. Rondorf
Alagnak watershed rainbow trout seasonal movement Alagnak watershed rainbow trout seasonal movement
Adult rainbow trout were radio-tagged in two locations in the Alagnak River drainage in 1997 and 1998 and radio-tracked until March 1999. The telemetry data indicate the two different sample groups exhibited independent movements with little geographic overlap. However, some tagged fish from each sample group migrated downstream to the same general area during the spawning season...
Authors
Julie M. Meka, E. Eric Knudsen, David C. Douglas
ARD remediation with limestone in a CO2 pressurized reactor ARD remediation with limestone in a CO2 pressurized reactor
We evaluated a new process for remediation of acid rock drainage (ARD). The process treats ARD with intermittently fluidized beds of granular limestone maintained within a continuous flow reactor pressurized with CO2. Tests were performed over a thirty day period at the Toby Creek mine drainage treatment plant, Elk County, Pennsylvania in cooperation with the Pennsylvania Department of
Authors
Philip L. Sibrell, Barnaby J. Watten, Andrew E. Friedrich, Brian J. Vinci