Digital Commons Network^™

Spatial Variation In The Response Of Tree Rings To Normal Faulting During The Hebgen Lake Earthquake, Southwestern Montana, Usa, Matthew F. Bekker

Wasatch Dendroclimatology Research

Tree rings have frequently been used to identify the effects of earthquakes on forests, but little is known about spatial variation in the response of trees to intraplate normal faulting. This paper documents and describes the effects of tree location (distance from and position above or below the fault scarp), size and age on the response of tree rings to the 1959 magnitude 7.5 Hebgen Lake earthquake, which occurred along a normal fault in the Gallatin National Forest in southwestern Montana. Core samples from 88 trees were collected along nine 100-m transects straddling the Hebgen scarp, and from 28 additional …

2004 - The Ninth Annual Symposium Of Student Scholars

Symposium of Student Scholars Program Books

The full program book from the Ninth Annual Symposium of Student Scholars, held on April 16, 2004. Includes abstracts from the presentations and posters.

Water Current, Volume 36, No. 2. Spring 2004

Water Current Newsletter

Contents

• June Tour Focuses on Competing Uses for Platte River Water and Basin Development by Steve Ress

• First Water Law, Policy and Science Conference Sets the Bar High by Steve Ress

• From the Director

• Meet the Faculty

• Helping Small Towns Reduce Arsenic in Drinking Water by Steve Ress

• GIS mapping tool helps officials track livestock diseases by Steve Ress

• News from the Water Sciences Laboratory

• Involve Public in Hard Decisions Regarding Science and Policy, Agency head Says by George Green

• Pederson and Graduate Student Stay Busy Chasing Waterfalls

Water News Briefs

The John Muir Newsletter, Spring/Summer 2004, The John Muir Center For Environmental Studies

Muir Center Newsletters (1981-2015)

News feSITY OF' THE PACIFIC, STOCKTON, CA Volume 14, Number 2/3 SPRING/SUMMER-2004 The Dim Dark Sea of the Norther John Muir's Exploits into the Pacific Northwest by Shane M. Hetzler (Editor's note: A native ofBeaverton, Oregon, Shane Hetzler graduated from Pacific in May, 2004, with a double major in Histoiy and French as well as a minor in Environmental Studies. This paper was researched as an Independent Study research project utilizing the unique resources of the John Muir Papers on campus.) 7ti the Pacific Northwest of today, many people do not wonder why they are able to enjoy wild and …

A Spatial Analysis Of The Impact Of Development On Wetland Habitat In Mount Pleasant, South Carolina, Jenna Medlin

Masters Theses & Specialist Projects

In response to growing concerns over wetland habitat loss and the associated impact on water resources, federal and state legislation has been enacted to protect vulnerable wetland habitats from the impacts of humans. In order to examine the efficacy of current coastal resource policy and its implementation, a study was conducted in Mount Pleasant, South Carolina, a coastal city of the Atlantic, focusing on the quantification of wetland habitat change over time within a specific area of interest. The study incorporated an assessment of the effects of escalating population pressures and subsequent urban development on local wetland habitats due to …

Circulation, Vol. 11, No. 1, Center For Coastal Physical Oceanography, Old Dominion University, Chris Powell

CCPO Circulation

Spring 2004 issue of CCPO Circulation featuring article "Technical Requirements for a Real-Time Oceanographic Mooring at LEO-15" by Chris Powell

Bio-Optical Properties Of The Arctic Waters: Empirical And Theoretical Observations, Jian Wang

OES Theses and Dissertations

Bio-optical observations were made during August 2000 in the Beaufort and Chukchi Seas. Chlorophyll a concentration (Chl) ranged from 0.068 to 18.51 mg chl m⁻³. Both total particulate and phytoplankton absorption at 443 nm were closely correlated with chlorophyll concentration. There is no strong correlation between chlorophyll concentration and absorption by soluble materials or nonpigmented particulates. Absorption, scattering, and attenuation all show strong first-order spectral relationships. Two semianalytical remote sensing reflectance models were evaluated and validated using bio-optical data collected in this region. Both models were proficient at retrieving chlorophyll concentration, phytoplankton absorption coefficients, and particulate backscattering coefficients. …

Forecasting Advective Sea Fog With The Use Of Classification And Regression Tree Analyses For Kunsan Air Base, Danielle M. Lewis

Theses and Dissertations

Advective sea fog frequently plagues Kunsan Air Base (AB), Republic of Korea, in the spring and summer seasons. It is responsible for a variety of impacts on military operations, the greatest being to aviation. To date, there are no suitable methods developed for forecasting advective sea fog at Kunsan, primarily due to a lack of understanding of sea fog formation under various synoptic situations over the Yellow Sea. This work explored the feasibility of predicting sea fog development with a 24-hour forecast lead time. Before exploratory data analysis was performed, a geographical introduction to the region was provided along with …

Chemical Characterization Of Ambient Aerosol Collected During The Northeast Monsoon Season Over The Arabian Sea: Anions And Cations, Anne M. Johansen, Michael R. Hoffmann

All Faculty Scholarship for the College of the Sciences

Ambient aerosol samples were collected over the Arabian Sea during the month of March 1997, aboard the German R/V Sonne, as part of the German JGOFS project (Joint Global Ocean Flux Study). This is the third study in a series of analogous measurements taken over the Arabian Sea during different seasons of the monsoon. Dichotomous high volume collector samples were analyzed for anions and cations upon return to the laboratory. Anthropogenic pollutant concentrations were larger during the first part of the cruise, when air masses originated over the Indian subcontinent. Total NSS‐SO₄²⁻ concentrations amounted to 2.94 ± …

The Second Law Mystique, Alexey V. Nikulov, D. P. Sheehan

Physics and Biophysics: Faculty Scholarship

No abstract provided.

Investigation Of Geobase Implementation Issues: Case Study Of Information Resource Management, Mario L. Oliver

Theses and Dissertations

Billions of dollars have been wasted on failed information system (IS) projects over the last decade in the private and public sectors. More specifically, the tri-service environment of the U.S. military has not implemented a single successful geospatial IS (GIS). The lack of a service-wide insertion process for GIS was cited as the most significant cause for military GIS failures. GeoBase represents the USAF's most recent GIS implementation. The GeoBase program focuses on Information Resource Management (IRM) and cultural issues. The GeoBase Sustainment Model (GSM), anecdotally developed by GeoBase leadership to reflect implementation issues and the IRM practices of the …

A Review Of The Colonization Dynamics Of The Northern Curly-Tailed Lizard (Leiocephalus Carinatus Arimouri) In Florida, Henry T. Smith, Richard M. Engeman

United States Department of Agriculture Wildlife Services: Staff Publications

The northern curly-tailed lizard (Leiocephalus carinatus armouri) is endemic to the islands of the Little Bahama Bank, with other subspecies found in the Great Bahama Bank, Cayman Islands, and Cubs (Schwartz and Thomas 1975, Schwartz and Henderson 1991).

The Biodiversity And Biogeochemistry Of Cryoconite Holes From Mcmurdo Dry Valley Glaciers, Antarctica, Dorota L. Porazinska, Andrew G. Fountain, Thomas H. Nylen, Martyn Tranter, Ross A. Virginia, Diana H. Wall

Geography Faculty Publications and Presentations

Once thought of as inert, ice has been increasingly recognized as a habitat suitable for life. The landscape of the MCMurdo Dry Valleys (MCM) of Antarctica is dominated by glaciers, and glacier melt is the primary water source for life in soils, streams, and lakes. The glaciers, despite their cold and lifeless appearance, offer functioning habitats for life. The major objective of this study was to examine biogeochemical characteristics of miniecosystems present in cryoconite holes and to determine links to other components (soils, streams, and lakes) of the dry valley landscape. We examined cryoconite holes from 5 glaciers spanning the …

Climatology Of Katabatic Winds In The Mcmurdo Dry Valleys, Southern Victoria Land, Antarctica, Thomas H. Nylen, Andrew G. Fountain, Peter T. Doran

Geography Faculty Publications and Presentations

Katabatic winds dramatically affect the climate of the McMurdo dry valleys, Antarctica. Winter wind events can increase local air temperatures by 30°C. The frequency of katabatic winds largely controls winter (June to August) temperatures, increasing 1°C per 1% increase in katabatic frequency, and it overwhelms the effect of topographic elevation (lapse rate). Summer katabatic winds are important, but their influence on summer temperature is less. The spatial distribution of katabatic winds varies significantly. Winter events increase by 14% for every 10 km up valley toward the ice sheet, and summer events increase by 3%. The spatial distribution of katabatic frequency …

Wildscapes, Dudscapes, And The Dude Ranching Aesthetic: Grand Teton National Park 1908-1940, Amanda Rees

Faculty Bibliography

No abstract provided.

Late Albian Dinosaur Tracks From The Cratonic (Eastern) Margin Of The Western Interior Seaway, Nebraska, Usa, R. M. Joeckel, J. M. Cunningham, R. G. Corner, P. L. Phillips, G. A. Ludvigson

School of Natural Resources: Faculty Publications

No abstract provided.

Satellite Monitoring Of Vegetation Dynamics: Sensitivity Enhancement By The Wide Dynamic Range Vegetation Index, Andrés Viña, Geoffrey Henebry, Anatoly A. Gitelson

School of Natural Resources: Faculty Publications

Synoptic monitoring of vegetation dynamics relies on satellite observations of the distinctive spectral contrast between red and near infrared reflectance that photosynthetically active green vegetation exhibits. It has long been recognized that the Normalized Difference Vegetation Index (NDVI) suffers a rapid decrease of sensitivity at moderate-to-high densities of photosynthetic green biomass. This decrease can conceal detection of vegetation change in croplands, woodlands, and productive grasslands.We applied a recent, straightforward modification of the NDVI, the Wide Dynamic Range Vegetation Index (WDRVI), to a standard AVHRR dataset to assess its sensitivity to variability within ecoregions and across years, relative to NDVI. In …

Application Of Snowfall And Wind Statistics To Snow Transport Modeling For Snowdrift Control In Minnesota, Martha Shulski, Mark W. Seeley

School of Natural Resources: Faculty Publications

Models were utilized to determine the snow accumulation season (SAS) and to quantify windblown snow for the purpose of snowdrift control for locations in Minnesota. The models require mean monthly temperature, snowfall, density of snow, and wind frequency distribution statistics. Temperature and precipitation data were obtained from local cooperative observing sites, and wind data came from Automated Surface Observing System (ASOS)/Automated Weather Observing System (AWOS) sites in the region. The temperature-based algorithm used to define the SAS reveals a geographic variability in the starting and ending dates of the season, which is determined by latitude and elevation. Mean seasonal snowfall …

Special Uses In Wilderness Areas: Management Survey, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

[47] p.

Private Lands Conservation In The Republic Of The Marshall Islands, Gregg De Bie, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

59 p. ; 28 cm

Image Compression And Its Effect On Data, Khaled S. Alkharabsheh

Theses, Dissertations and Capstones

This thesis is intended to define and study different image compression techniques, software programs, image formats (from early ones such as “GIF” to most recent ones such as “JPEG 2000”), compression effect on compressed data (compressed images), and its effectiveness and usefulness in reducing the file size and its transmission time, as a result.

In many GeoBioPhysical applications, some information inside any image may be the keys to solve different kinds of problems and classify features. This kind of data and information has to be handled with care; i.e. it’s not allowed to be lost during the compression process. On …

Urban Development And Effects To Transportation Systems Of Lexington, Fayette County, Kentucky, Wannaporn Jarupath

Theses, Dissertations and Capstones

Urban growth and its relationship to the transportation system of Lexington, Kentucky were investigated using temporal images of Landsat Thematic Mapper and multi-date line data. Land cover of the area was extracted using Remote Sensing and Geographic Information Systems Technologies. Change detection techniques were employed to identify areas of transformation between 1988 and 2000. Several digital image processes such as geometric registration, radiometric normalization, unsupervised classification, and accuracy assessment were applied to analyze the results. Vector analysis was utilized as well along with raster analysis to examine the effect of urban growth to the transportation system. Two datasets of line …

Humanistic Mathematics As Mathematics For All, Michael N. Fried

Humanistic Mathematics Network Journal

No abstract provided.

Private Lands Conservation In The Commonwealth Of The Northern Mariana Islands, Gregg De Bie, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

68 p. ; 28 cm

Private Lands Conservation In Jamaica, Katharine Stone, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

1, 35 leaves ; 28 cm

Private Lands Conservation In Palau, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

1, 37 leaves ; 28 cm

Taxicab Geometry As A Vehicle For The Journey Toward Enlightenment, Neil Greenspan

Humanistic Mathematics Network Journal

No abstract provided.

The Development Of An Environmental Ethics Undergraduate Curriculum For California, James Rowland Roberts

Theses Digitization Project

This study included an environmental ethics syllabi research project, an environmental ethics curriculum development survey of all colleges in California, and the subsequent development of tables to compare the results. The curriculum development survey of California colleges includes a listing of all course descriptions of environmental ethics and related courses.

Empirical Measurement Of Parasite Transmission Between Groups In A Colonial Bird, Charles R. Brown, Mary Bomberger Brown

School of Natural Resources: Faculty Publications

While epidemiological models have suggested that the spread of parasites
and infectious diseases often depends critically on the extent of movement by infected
individuals between populations, there is little empirical information for any organism on
the frequency of between-group parasite transmission or how it varies spatially. The transmission
of parasites between discrete social groups or populations may also help determine
a host’s total parasite or pathogen exposure. We measured the introduction of parasitic bugs
(Oeciacus vicarius) into colonies of Cliff Swallows (Petrochelidon pyrrhonota) by transient
birds from outside each group. The transmission of bugs increased strongly …

Hydrochemical Variations During Flood Pulses In The South-West China Peak Cluster Karst: Impacts Of Caco3–H2o–Co2 Interactions, Chris Groves, Zaihua Liu, Daoxian Yuan, Joe Meiman, Guanghui Jiang, Shiyi He, Qiang Li

Earth, Environmental, and Atmospheric Sciences Faculty Publications

High-resolution measurements of rainfall, water level, pH, conductivity, temperature and carbonate chemistry parameters of groundwater at two adjacent locations within the peak cluster karst of the Guilin Karst Experimental Site in Guangxi Province, China, were made with different types of multiparameter sonde. The data were stored using data loggers recording with 2 min or 15 min resolution. Waters from a large, perennial spring represent the exit for the aquifer's conduit flow, and a nearby well measures water in the conduit-adjacent, fractured media. During flood pulses, the pH of the conduit flow water rises as the conductivity falls. In contrast, and …