Physical and Environmental Geography Commons^™

Using Remotely Sensed Data To Detect Tamarisk Along Colorado’S San Miguel River, William E. Johnson

Geography and the Environment: Graduate Student Capstones

Tamarisk, an invasive tree native to Eurasia, has become widespread in river corridors across the southwestern United States. Accused of excessive water consumption and degradation of native habitats, it has been the target of extensive eradication and restoration efforts. Identifying its ever-changing distribution and extent benefits natural resource managers tasked with planning and prioritizing invasive plant management activities.

The use of GIS tools and remotely sensed data offers the potential to speed and improve our ability to locate tamarisk distributions. This project searches for tamarisk by classifying land cover vegetation (including tamarisk) based on spectral reflectance values from three-band natural …

The Value Of Proximity To External Amenities And Mountain Views In The Metropolitan Denver Residential Housing Market, Tabatha Rose Waldron

Geography and the Environment: Graduate Student Capstones

This research examines how natural amenities, such as views of Colorado’s Front Range mountains and proximity to lakes, parks and recreational areas, as well as proximity to community amenities such as hospitals, active wastewater treatment plants, fire and a police stations impact residential housing prices in Adams, Arapahoe and Denver Counties using a hedonic pricing model. Views of the mountains produced the most impact on home sale value in 2000 followed by proximity to a lake of 250 feet. These results demonstrate the importance of environmental amenities to single-family home buyers and can be used to inform parties involved in …

Enhancing Remote Sensing For Agriculture Using Small Unmanned Aerial Systems: San Diego, Ca, As A Test Case, Colin Kubera

Geography and the Environment: Graduate Student Capstones

The development of small Global Positioning System (GPS) antennas and microprocessors has propelled the advancement of affordable Small Unmanned Aerial Systems (SUASs), which will dramatically expand the remote sensing field, making timely, high-resolution imagery readily available. The low cost and simple operation of SUASs makes them an attractive option for agriculture. Flying a SUAS 400 ft above ground level (AGL) in a flight path that allows for significant image overlap can yield sub- 5cm resolution imagery, which in turn can be mosaicked and used for multispectral imagery analysis. With results rivaling the most advanced commercial imaging sensors, SUASs can be …

Water Efficiency Devices And Conservation Practices, Juan A. Gonzalez

Geography and the Environment: Graduate Student Capstones

Southern California has a special and unique Mediterranean climate that is rare and only shared with a few countries around the world. In the last few years, the Southern California region has experienced unpredictable periods of both wet and dry weather, and it is likely that it will continue to experience these types of disruptions as a consequence of climate changes in the future (West Basin Municipal Water District [WBMWD]). Water supply agencies in the region have pressed for strong regulations in order to promote water conservation. The study will focus on a small water agency, Rancho California Water District. …

Using Geographic Information Systems To Select Suitable Columbian Sharp-Tailed Grouse Habitat In Northern Idaho, Jennifer Grew

Geography and the Environment: Graduate Student Capstones

The Columbian sharp-tailed grouse was once the most abundant game bird in the Inland Northwest area. The main reason for their loss was the conversion of their habitat into agricultural lands and timber forests. Several variables were incorporated into a weighted sum tool in ArcGIS using public raster layers for each of three seasons. The results layers were analyzed using the same tool to find the most suitable habitat. Six locations in the county had 50% or better suitability. One location showed 80% or better. The grouse historic range appears to coincide with Palouse prairielands in Benewah County. Further research …

Colorado Front Range Parks Location Mapping Website, Leah Alvarado

Geography and the Environment: Graduate Student Capstones

With current technology, using location based services has become easier than ever. There are services that can help a person find a home, save money, or even find a bathroom. In Colorado, parks are managed by the park and recreation department of a city, town, county, or by a district. Depending on the city, information on the parks that they service comes in different formats and information varies. Some department have online maps others have a map in a portable document format, and some offer no mapping but, a list of parks. Finding a park with consistent data formats and …

Baseline Study Of The Relationship Between Green Space And Age, Chris Schulze

Geography and the Environment: Graduate Student Capstones

Current research on green space and human health is spread among many academic disciplines and is growing. To aid researchers and local governments in understanding the relationship between the two, this study presents a baseline analysis of the spatial relationship between green space and age. It considers how a city’s population is distributed around green space and looks at spatial and statistical patterns related to age and location. This study identifies a gap in current research and looks at green space and age in a geographic manner. The findings of this literature review and analysis provide researchers with another way …

Fresh Squeezed: The Dilemma Of Local Food Production Along Colorado's Front Range Urban Corridor, Amanda Jessie Weaver

Electronic Theses and Dissertations

Today, the Front Range Urban Corridor of Colorado is one example from the urban/agricultural battlefield. The history of food production and urbanization in this area is similar to many regions throughout the western United States. Originally an extraction based economy, Colorado later became agriculturally/pastorally based, and more recently became a service-based, urban economy. On the Front Range Urban Corridor specifically, the urban core of Denver and Boulder developed with rich agricultural lands toward the northeast to Weld County along the northern border of the state. Though a semi-arid region, this agricultural zone produces a volume and variety of food-based crops …

Gis Prototype Modeling Of Landslide Susceptibility And Risk Perception - Aguas Calientes (Machu Picchu Pueblo), Peru: An Exploratory Approach, Alicia Felice Tyson

Geography and the Environment: Graduate Student Capstones

Tourism is an increasingly important and developing sector of the Peruvian economy and the country is fast-tracking development to accommodate an influx of tourists, reportedly over 1.8 million/year. Situated in the southwest region of Peru, Aguas Calientes (Machu Picchu Pueblo) continues to develop infrastructure to keep pace with this burgeoning tourism industry. Regional geology and hydrology are importation factors influencing the ability to accommodate tourism in Aguas Calientes. Located at the confluence of three rivers, the town is also situated in a watershed with high return intervals for flooding and mass wasting triggered by the sudden, intense rainfall characterizing the …

Inter-Species Interactions: Effects Of Spatial Proximity Of Breeding Burrowing Owls (Athene Cunicularia) And Mountain Plovers (Charadrius Montanus) On Mountain Plover Nest Success, Lindsey Messinger

Geography and the Environment: Graduate Student Capstones

Predator-prey interactions are complex and direct interactions between predator-prey pairs are difficult to distinguish due to direct and indirect effects of additional predator-prey interactions. While most studies evaluating the impact of predators on prey concentrate on consumption (mortality of prey caused by a predator), there are a variety of interactions that take place between predators and prey that may not result in mortality. These in direct impacts of predation have been found to influence micro- and macro- habitat use, time allocation patterns, species distribution, population growth, and species interactions and can be just as strong or stronger than consumptive effects.

Mapping Sustainability: City Of Fife Parks And Recreation, Tonya Elliott

Geography and the Environment: Graduate Student Capstones

Sustainability is based on a simple principle: Everything that we need for our survival and well-being depends, either directly or indirectly, on our natural environment. Sustainability creates and maintains the conditions under which humans and nature can exist in productive harmony, that permits fulfilling the social, economic, and other requirements of present and future.

Accuracy Of Boulder County’S Gis Parcel Mapping: An Examination Of Gis Cadastral Mapping Compared To Land Surveys, Kayce D. Wohlman

Geography and the Environment: Graduate Student Capstones

This research outlines land surveying in the State of Colorado and discusses the formation of parcel maps in the state. GIS continues to grow in various industries and government entities since it is able to best streamline copious amounts of geospatial information. Following suit, County Assessor Offices throughout the country have benefited from the use of a GIS to organize their data. The cost, implementation and maintenance of a GIS is a costly endeavor however it benefits both the County, State and the general public. County Assessor Office GIS systems have directly influenced the field of Land Surveying both positively …

Potential Wolverine Habitat Vs. Winter Recreation. Conflict In Colorado!, Paul Quigley

Geography and the Environment: Graduate Student Capstones

The Global list of endangered species of flora and fauna is growing, with the most highly specialized species often at ‘critically endangered’ status. Managing these populations effectively involves numerous and varied organizations, conflicting motivations, arbitrary anthropogenic boundaries and often most importantly, data compilation and management. We are seeing many more reintroductions of locally extirpated species back into habitats of historical prevalence – and as extreme a method of conservation as this is, there is still a need for more extreme methods. High profile and highly specialized endangered species are often managed in a ‘crisis’ mode, where complex behaviors and interactions …

Surface Modeling Topsoil Distribution On A Reclaimed Coal-Mine Site At Blackmesa Mine Complex, Kayenta, Arizona, Janine Ferarese

Geography and the Environment: Graduate Student Capstones

A necessary precursor to ensure proper vegetation growth on reclaimed coal-mine areas is even distribution of topsoil. This capstone discusses development of surface models to describe the accurate determination and visualization of the distribution of topsoil. Prediction surfaces from topsoil-depth point samples were created using the surface interpolation methods, Inverse Distance Weighted and Kriging. The validity and accuracy of each method was assessed to determine the best method to evaluate actual topsoil distribution at a coal mining site. The model can be utilized by non- spatially trained personnel working in the mining arena as an aid in assessing how appropriately …

From Lakes To Plants: Spatial Assessment Of Vegetation Dynamics Along 52 Disappearing Lakes In The Boreal Forests Of Alaska From 1984-2009 In The Yukon Flats Wildlife Refuge, Steve Ewest

Geography and the Environment: Graduate Student Capstones

A spatial assessment of vegetation change along the areas of shrinking lakes was conducted in 2011. The analysis utilized Landsat TM/ETM imagery bands 3 and 4 to calculate NDVI (normalized difference vegetation index) from 1984 to 2009 and applied cell and zonal statistics to measure the change as well as create an animation of the change. Also, three 30 meter bands and the zonal averages for the maximum values were assessed. The band in the 60-90 buffer bands has the greatest ratio amount of the maximum vegetation values when compared to the 0-30 meter and the 30-60 meter buffered bands. …

Colorado's Large Snow Events' Impact On Tree Ring Growth And Dillon Reservoir, Katrina Leona Marzetta

Electronic Theses and Dissertations

Meteorological observations from 1894 through 2010 suggest that 17 historically large snow events occurred in the mountains of Colorado within Denver's water supply region. Of these 16 events, 14 can be identified in precipitation sensitive tree ring records as positive climatic pointer years. If these storms were to occur today, they would have the potential to fill reservoirs in Denver Water's supply system, even after years of sustained drought. These "drought busters" have the potential to refill Dillon Reservoir by increasing average yearly inflow up to 146% of the previous year's inflow. Such drought busters can help Denver recover from …

Mapping In Philanthropy: Exploring The Use Of Mapping In Foundation Grantmaking, Jim Casey

Geography and the Environment: Graduate Student Capstones

Foundations provide grants to nonprofit organizations in our communities, who then provide services locally. Choosing which nonprofit to fund, and which not to fund is difficult. This study examines current uses and upcoming uses of mapping and Geographic Information Systems (GIS) as part of funding decisions made by foundations. Foundations engaged in strategic funding, especially that which targets specific populations are more likely to use GIS and geospatial analysis in funding decisions. Grantmaking in response to proposals requires less strategic analysis and calls for mapping much less by comparison. As a field, nationally foundations and nonprofits have identified many uses …

Developing Tornado Climatology In The Southern Great Plains Per Phases Of Prominent Oceanic Oscillations, Nicholas M. Fillo

Geography and the Environment: Graduate Student Capstones

Meteorologists are continually working toward a greater understanding of which atmospheric environments are most conducive for tornado development. This Capstone project analyzed tornado occurrences across Texas, Oklahoma, Arkansas and Louisiana during the period 1950 through 2009 to determine if any correlation exists between the location and frequency of tornado activity and the phases of the El Nino-Southern Oscillation, the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation. While it was determined that no phase of any of the oscillations studied was significantly more dominant over the other(s) concerning frequency, this project does identify some spatial shifts in tornado activity depending …

Determining Heritage Oak Tree Susceptibility To Sudden Oak Death Using Gis Risk Analysis, Michelle M. Guzdek

Geography and the Environment: Graduate Student Capstones

Sudden Oak Death (SOD), caused by the pathogenic water mold Phytophthora ramorum, has killed hundreds of thousands of oak trees in the California coastal regions, with redwood-tanoak forests being hit the hardest (Shoemaker et al., 2007). The term “sudden oak death” is used to describe the disease, because of how rapidly the pathogen has killed otherwise healthy tanoaks, virtually in a matter of weeks (COMTF 2010). SOD was first reported in California in 1994 and is believed to have originated from infected nursery or ornamental plants, but the source has never been identified (Mascheretti et al. 2008).

Using Gis To Determine Wind Harvesting Potential To Help Offset Boulder County's Yearly Energy Usage To Become A More Sustainable County, Pete Coventry

Geography and the Environment: Graduate Student Capstones

This project focuses on Boulder County, Colorado as a case study to demonstrate how a Geographic Information System (GIS) can identify potential wind harvesting areas. A step by step demonstration will illustrate the steps needed to determine such harvesting areas and their wind potential. Once potential wind harvesting areas have been identified, concluding analysis will determine the amount of energy generated in efforts to offset current energy use. Harvesting wind has dated back to the 7^th century and is looked at as a mature technology (Edwards 2003). Over the past few decades, public attitudes towards wind harvesting is becoming …

Creating A Habitat Suitability Index Model For Argali Sheep (Ovis Ammon), And Siberian Ibex (Capra Sibirica) In Ikh Nartin Reserve, Mongolia, Nanette Bragin

Geography and the Environment: Graduate Student Capstones

Mongolia is a country with a park system of protected areas, preserving native flora and fauna. In order to inform decision makers about the status of endangered species and park land health, two species of concern, the Argali sheep (Ovis ammon) and Siberian ibex Capra siberica) in the Ikh Nart Reserve in Mongolia were studied. A Habitat Suitability Index Model was developed to study the Argali and ibex habitat preference and discern if the reserve and core zone offer optimal habitat. A total of 57 animals were examined, creating 95% and 50% home range kernels, and minimum convex polygons. The …

Emergent Geographies In Green Energy, Sean Tierney

Electronic Theses and Dissertations

A consensus on climate change is spurring an energy transition, but the geography of this transition is uneven and this paper evaluates the energy landscape globally, in the United States and in Colorado. Developed countries have taken the lead in installations and of next generation energy technology ownership. Green electricity has still not achieved parity with fossil fuels, which puts their adoption in the hands of policy makers who are trying to spur innovation with minimal financial disruption. Yet the future of green electricity is in question due to weak and fragmented policy regimes, but also because of inadequate R&D …

The Scope And Nature Of Panhandling And The Related Crime In Denver, Colorado, Megan A. Gall

Geography and the Environment: Graduate Student Capstones

Nationally, increases in the number of panhandlers and homeless people are associated with social and economic issues and are the subject of public policy debate, sociological inquiry and public interest (DHPG 2003). Panhandlers and homeless people are collectively called transients for this research. In the 1950s, the deinstitutionalization of the mentally ill caused the first major influx of homelessness. Discrepancies between affordable housing and wages grew through the 1960s and 1970s and the problem did not gain national attention until the 1980s (DCEH n.d.). The increased attention is primarily due to the continued scarcity of housing, increasing discrepancies between housing …