Digital Commons Network^™

Semantic Sensor Web, Amit P. Sheth, Cory Henson, Krishnaprasad Thirunarayan

Kno.e.sis Publications

No abstract provided.

A Modeling And Spatio-Temporal Analysis Framework For Monitoring Environmental Change Using Npp As An Ecosystem Indicator, Robert Crabtree, Christopher Potter, Randall Mullen, Jennifer Sheldon, Shengli Huang, Joshua Harmsen, Ann Rodman, Cathie Jean

United States National Aeronautics and Space Administration: Publications

We present and describe a modeling and analysis framework for monitoring protected area (PA) ecosystems with net primary productivity (NPP) as an indicator of health. It brings together satellite data, an ecosystem simulation model (NASA–CASA), spatial linear models with autoregression, and a GIS to provide practitioners a low-cost, accessible ecosystem monitoring and analysis system (EMAS) at landscape resolutions. The EMAS is evaluated and assessed with an application example in Yellowstone National Park aimed at identifying the causes and consequences of drought. Utilizing five predictor covariates (solar radiation, burn severity, soil productivity, temperature, and precipitation), spatio-temporal analysis revealed how landscape controls …

Hierarchical Geographical Identifiers As An Indexing Technique For Geographic Information Retrieval, John Christopher Lakey

Theses and Dissertations

Location plays an ever increasing role in modern web-based applications. Many of these applications leverage off-the-shelf search engine technology to provide interactive access to large collections of data. Unfortunately, these commodity search engines do not provide special support for location-based indexing and retrieval. Many applications overcome this constraint by applying geographic bounding boxes in conjunction with range queries. We propose an alternative technique based on geographic identifiers and suggest it will yield faster query evaluation and provide higher search precision. Our experiment compared the two approaches by executing thousands of unique queries on a dataset with 1.8 million records. Based …

Development Of A Geovisual Analytics Environment Using Parallel Coordinates With Applications To Tropical Cyclone Trend Analysis, Chad A. Steed

Theses and Dissertations

A global transformation is being fueled by unprecedented growth in the quality, quantity, and number of different parameters in environmental data through the convergence of several technological advances in data collection and modeling. Although these data hold great potential for helping us understand many complex and, in some cases, life-threatening environmental processes, our ability to generate such data is far outpacing our ability to analyze it. In particular, conventional environmental data analysis tools are inadequate for coping with the size and complexity of these data. As a result, users are forced to reduce the problem in order to adapt to …

Neogeographies, Cathy Moulder

Cathy Moulder

‘Neogeographies’ are Web 2.0 applications using geographic information. This session will show a few examples of this type of web-based tool but will focus mostly on Google Earth. Cathy Moulder has done some research specifically on Google Earth and its application to student assignments in higher education. This particular neogeography offers considerable potential for incorporation into student assignments in many disciplines.

Using Palaeobotanical Techniques To Guide Peatland Restoration. A Case Study From Byron Bay, Australia, Kathryn H. Taffs, Jeffrey F. Parr, Keith G. Bolton

Jeffrey Parr

No abstract provided.

Total Station Mapping: Practical Examples From Alta And Baja California, Tsim D. Schneider, Lee M. Panich

Faculty Publications

The use of electronic total data stations for mapping archaeological sites is examined through two California case studies. Mission Santa Catalina, located in the high desert of Baja California, and a cluster of three shell mounds, located in a forest in the San Francisco Bay area, represent two different examples of organizing and implementing a mapping program using a total station. In this article, we will discuss the basic use of total stations for mapping archaeological sites and provide an overview of the process of creating digital maps from data obtained using a total station. The two case studies will …

Preliminary Analysis Of The Ecology And Geography Of The Asian Nuthatches (Aves: Sittidae), Shaily Menon, Zafar-Ul Islam, Jorge Soberon, A. Townsend Peterson

Peer Reviewed Publications

We explored distributions of Asian nuthatch species in ecological and geographic space using ecological niche modeling based on occurrence data associated with specimens and observations. Nuthatches represent a well-defined clade occurring throughout the Northern Hemisphere, but are most diverse in southern Asia where 15 of the 24 species occur and where the lineage is believed to have evolved. Species richness was focused in a narrow east-west band corresponding to the forested parts of the Himalayas with a maximum number of nine species predicted present in these foci. The distributional predictions have a mid-elevation focus with highest species diversity between 1,000 …

Iphone Forensics Methodology And Tools, Haitham Al-Hajri, Krishnun Sansurooah

Australian Digital Forensics Conference

iPhone mobile devices are rapidly overtaking the new generation of mobile phones market, especially among the young generation. It is also gaining a lot of popularity among security specialists and fancy gadgets for collectors. The device is considered as a “special” mobile phone due to its ability to perform multi-operations if not multitasking. It can therefore be used as a entertainment media device, a camera, a GPS, Internet surfing via Wi-Fi technology, Internet Mobile Edge Services, personal organizer, and finally performing as a cell phone with all the usual services including sms, and so forth. However, the difference between the …

State Funded Research Annual Report Fy08, University Of Maine System

General University of Maine Publications

The University of Maine System is required to submit in January of each year an annual report on the utilization of state research appropriations for operations and state research capital bonds. The report is to cover the most recently completed fiscal year.

Solarization Effects On Chemical Properties Of Soils Under Kudu (Pueraria Montana) Invasion, Nicole Gilbert

All Theses

Solarization is an effective method for managing small areas with kudzu (Pueraria montana) invasions that may alter soil chemical properties. Conducted from 2005 to 2007 at the Clemson University Experimental Forest in Clemson, South Carolina on a Cecil clay loam (fine, kaolinitic, thermic Typic Kanhapludult), this study compares soil chemical properties under thermally-treated and non-treated plots at different depths invaded by Kudzu.
The experimental factors of treatment and depth were arranged in a factorial treatment design with 15 treatments arranged in a split plot design. The five thermal treatments were the whole plot factors which were arranged in a randomized …

Restoration Of Oyster (Crassostrea Virginica) Habitat For Multiple Estuarine Species Benefits, Shachak Pe'eri, J. Ru Morrison, Frederick T. Short, Arthur C. Mathieson, Anna Brook, Philip Trowbridge

PREP Reports & Publications

Increase in nitrogen concentration and declining eelgrass beds in Great Bay Estuary have been observed in the last decades. These two parameters are clear indicators of the impending problems for NH’s estuaries. The NH Department of Environmental Services (DES) in collaboration with the New Hampshire Estuaries Project (NHEP) adopted the assumption that eelgrass survival can be used as the water quality target for nutrient criteria development for NH’s estuaries. One of the hypotheses put forward regarding eelgrass decline is that a possible eutrophication response to nutrient increases in the Great Bay Estuary has been the proliferation of nuisance macroalgae, which …

Macroalgae And Eelgrass Mapping In Great Bay Estuary Using Aisa Hyperspectral Imagery, Shachak Pe'eri, J. Ru Morrison, Frederick T. Short, Arthur C. Mathieson, Anna Brook, Philip Trowbridge

PREP Reports & Publications

Increase in nitrogen concentration and declining eelgrass beds in Great Bay Estuary have been observed in the last decades. These two parameters are clear indicators of the impending problems for NH’s estuaries. The NH Department of Environmental Services (DES) in collaboration with the New Hampshire Estuaries Project (NHEP) adopted the assumption that eelgrass survival can be used as the water quality target for nutrient criteria development for NH’s estuaries. One of the hypotheses put forward regarding eelgrass decline is that a possible eutrophication response to nutrient increases in the Great Bay Estuary has been the proliferation of nuisance macroalgae, which …

Incorporating Spatial Data And Gis To Improve Sea Of Land Use Plans: Opportunities And Limitations: Case Studies In The Republic Of Ireland, Ainhoa Gonzalez Del Campo

Doctoral

This research aimed at establishing whether spatial data and Geographic Information Systems (GIS) can contribute to Strategic Environmental Assessment (SEA). To achieve this, an integrated GISEA approach was developed and applied to a number of spatial planning SEAs in the Republic of Ireland. The practical applicability of the approach was examined, evaluating the potential benefits derived from using spatial data and GIS in SEA and assessing the potential barriers to an effective GIS use. The implementation of the SEA Directive incorporated a new dimension into plan-making by calling for the assessment of potential environmental effects that may derive from implementing …

Managing Geographic Data As An Asset: A Case Study In Large Scale Data Management, Clay Smithers

USF Tampa Graduate Theses and Dissertations

Geographic data is a hallowed element within the Geographic Information Systems (GIS) discipline. As geographic data faces increased usage in distributed and mobile environments, the ability to access and maintain that data can become challenging. Traditional methods of data management through the use of file storage, databases, and data catalog software are valuable in their ability to organize data, but provide little information about how the data was collected, how often the data is updated, and what value the data holds for an organization. By defining geographic data as an asset it becomes a valuable resource that requires acquisition, maintenance …

A See-Ability Metric To Improve Mini Unmanned Aerial Vehicle Operator Awareness Using Video Georegistered To Terrain Models, Cameron Howard Engh

Theses and Dissertations

Search and rescue operations conducted in wilderness environments can be greatly aided by the use of video filmed from mini-UAVs. While lightweight, inexpensive and easily transportable, these small aircraft suffer from wind buffeting and may produce video that is difficult to search. To aid in the video search process, we have created a system to project video frames into a 3D representation of the search region. This projection allows us to tie each frame of video to a real-world location, enabling a myriad of novel views, mosaics and metrics that can be used to guide the search including a new …

Modular, Distributed Spatial Metadata Repository On The Services Principle, Christopher C. Miller

GIS Day

Despite major improvements in GIS technologies in recent years, it remains particularly difficult to efficiently locate geospatial data. Purdue Libraries, in keeping with their efforts to build a distributed, cross-discipline data repository, is nearing an alpha release of a metadata portal through which large amounts of base data as well as Purdue-produced geospatial data can be located, downloaded or connected to. GIS Librarian Miller will discuss the project and how it might interact with existing campus systems.

Gis Day@Purdue, Christopher C. Miller

GIS Day

This presentation file was used for opening remarks at GIS Day 2008. Included are some details about the event itself, some announcements about upcoming projects and events, tips for staying up to date with information about GIS and geospatial news at Purdue, and the names of a GIS Day geocaching contest.

Annual Financial Report, 2007-2008, University Of Arkansas, Fayetteville

Annual Financial Report

No abstract provided.

Linking Health Hazards And Environmental Justice: A Case Study In Houston, Texas, Marilyn Marie Williams

USF Tampa Graduate Theses and Dissertations

This dissertation seeks to extend quantitative research on environmental justice and address methodological limitations of previous studies by: (a) using new indicators of exposure to air pollution and contemporary risk modeling techniques; (b) assessing disparities in human health risks, instead of focusing only on potential exposure or proximity to pollution sources; and (c) using multivariate regression models that consider the effects of spatial dependence. The case study examines racial/ethnic and socioeconomic disparities in the geographic distribution of exposure to airborne toxic emissions from industrial point sources in the Houston-Galveston-Brazoria metropolitan statistical area. Industrial pollution sources for this study comprise facilities …

Mash Something, Christopher C. Miller

GIS Day

This is the lead document from a hands-on workshop held on November 18, 2008 at Purdue University Libraries. The session led participants through the creation of an online map mashup. Mashups are all the rage, of course (or have been since ~2005, anyway), and the tools available to make them have increased almost exponentially. This document walks through the basics of the mashup, with a look at Google Maps, Yahoo! Pipes, and OpenLayers, then proceeds to step through the process of creating one's own. The objectives of the session were as follows:

create a simple map mashup using tabular data …

Gis Day Activities Planned For Area Students, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

The Cord Weekly (November 5, 2008)

The Cord

No abstract provided.

The Register, 2008-11-05, North Carolina Agricutural And Technical State University

NCAT Student Newspapers

No abstract provided.

Numerical Groundwater Flow Modeling In The Wakal River Basin, India, Himadri Biswas

FIU Electronic Theses and Dissertations

Increasing dependence on groundwater in the Wakal River basin, India, jeopardizes water supply sustainability. A numerical groundwater model was developed to better understand the aquifer system and to evaluate its potential in terms of quantity and replenishment. Potential artificial recharge areas were delineated using landscape and hydrogeologic parameters, Geographic Information System (GIS), and remote sensing.

Groundwater models are powerful tools for recharge estimation when transmissivity is known. Proper recharge must be applied to reproduce field-measured heads. The model showed that groundwater levels could decline significantly if there are two drought years in every four years that result in reduced recharge, …

Spatial And Temporal Analysis Of Contact Rates In Female White-Tailed Deer, Lene J. Kjaer, Eric M. Schauber, Clayton K. Nielsen

Publications

White-tailed deer (Odocoileus virginianus) are important game mammals and potential reservoirs of diseases of domestic livestock; thus, diseases of deer are of great concern to wildlife managers. Contact, either direct or indirect, is necessary for disease transmission, but we know little about the ecological contexts that promote intrasexual contact among deer. Using pair-wise direct contacts estimated from Global Positioning System collar locations and joint utilization distributions (JUDs), we assessed habitats in which contacts occur to test whether direct contact rates among female white-tailed deer in different social groups differs among land-cover types. We also tested whether contact rates …

Icworld: An Mmog-Based Approach To Analysis, Kimberly Gill, David Rolston, Wyatt Wong, Robert Pietrusko

Journal of Strategic Security

Intelligence analysts routinely work with "wicked" problems—critical,time-sensitive problems where analytical errors can lead to catastrophic consequences for the nation's security. In the analyst's world, important decisions are often made quickly, and are made based on consuming, understanding, and piecing together enormous volumes of data. The data is not only voluminous, but often fragmented, subjective, inaccurate and fluid.Why does multi-player on-line gaming (MMOG) technology matter to the IC? Fundamentally, there are two reasons. The first is technological: stripping away the gamelike content, MMOGs are dynamic systems that represent a physical world, where users are presented with (virtual) life-and-death challenges that can …

Dividing Up Intelligence Education, Robert Clark, Ph.D

Journal of Strategic Security

At this year's annual conference of the International Association for Intelligence Education (IAFIE) in Monterey, CA, the keynote speaker posed the question, "How much do you need intelligence education outside the beltway?" Which led to a second question discussed during the conference: "What should such education look like?" In short, what should we be teaching in universities? What should we leave to the intelligence community as training? And what could be done in either or both settings? The first question of any educational effort is:What are we preparing students for?

The Register, 2008-10-29, North Carolina Agricutural And Technical State University

NCAT Student Newspapers

No abstract provided.

Case Study: Access To Public Data, David Dibiase, Francis Harvey, Dawn Wright

Ethics in Science and Engineering National Clearinghouse

No abstract provided.