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Articles 1321 - 1350 of 1855
Full-Text Articles in Geography
Gis At The Libraries, Nicole Kong
How Structural Complexity Of Vegetation Facilitates Invasion: Integrating Lidar And Fia Invasive Species Plot Data In The Appalachian Mountains Of The Usa, Buddhika D. Madurapperuma, Basil V. Iannone Iii, Jinha Jung, Bryan C. Pijanowski, Songlin Fei, Gang Shao
How Structural Complexity Of Vegetation Facilitates Invasion: Integrating Lidar And Fia Invasive Species Plot Data In The Appalachian Mountains Of The Usa, Buddhika D. Madurapperuma, Basil V. Iannone Iii, Jinha Jung, Bryan C. Pijanowski, Songlin Fei, Gang Shao
Purdue GIS Day
This study examines how the vertical structure of forests and the variation in forest canopy tree composition relates to where forest plant invasions occur at a regional scale. We used LiDAR data on vertical structure of forests collected across 16 counties of western North Carolina, and Forest Inventory and Analysis (FIA) abundance data of invasive plant species and canopy tree species from 575 plots. We found that nearly one third of these plots were invaded by at least one invasive plant species (range = 1 to 8 species). We derived canopy gaps/clear-cut areas of the study site using LiDAR data …
Infertmapper: A Mobile Map App For Fertilizer Setbacks, Akshay Kochar, Larry Theller
Infertmapper: A Mobile Map App For Fertilizer Setbacks, Akshay Kochar, Larry Theller
Purdue GIS Day
Goal: To develop a mobile app decision-support tool which facilitates compliance by livestock producers with the new fertilizer regulations. This tool provides a map which allows users to quickly know where the various setbacks are located in relation to a field being evaluated for a manure application or temporary storage (staging).
Using Gis To Communicate Campus Construction, Angela Slocum
Using Gis To Communicate Campus Construction, Angela Slocum
Purdue GIS Day
No abstract provided.
Broadening Access To Geospatial Capabilities, Carol Song
Broadening Access To Geospatial Capabilities, Carol Song
Purdue GIS Day
Responding to the need for geospatial tool and data capabilities in HUBzero from various communities, a Purdue team is developing and integrating geospatial capabilities into the HUBzero software. Funded by the National Science Foundation’s Data Infrastructure Building Blocks (DIBBs) initiative, the follow-on program to the DataNet program, the GABBs project is a four-year software development effort aiming at enabling researchers, students and citizens to share geospatial data and tools online without requiring significant amounts of software expertise or IT administrative privileges. The new geospatial functions are being integrated into the HUBzero framework such as RAPPTURE Toolkit for rapid tool development, …
Indiana Statewide Gis Resources, Jim Sparks, Amanda O'Daniel
Indiana Statewide Gis Resources, Jim Sparks, Amanda O'Daniel
Purdue GIS Day
No abstract provided.
Creating Easy And Fun Gis Web Applications, Teresa L. Clark
Creating Easy And Fun Gis Web Applications, Teresa L. Clark
Purdue GIS Day
Applications for GIS can be far more than just maps, spatial and network analysis, or geocoding. The tools that are available can be fun and useful for many different types of people with varying levels of experience. With the availability with ArcGIS Online Web AppBuilder a person without much experience in GIS can make a professional quality presentation that highlights different related attributes. This talk will showcase recent applications that I created with the ArcGIS Story Map Tour and Story Map Text and Legend templates for a Purdue University GIS class. These tools show the countrywide travels of an airline …
The Emerging American Empire: Republican Capitalist Development In The Usa, 1830-1930, Richard Hogan
The Emerging American Empire: Republican Capitalist Development In The Usa, 1830-1930, Richard Hogan
Purdue GIS Day
Capital Accumulation, territorial expansion, and the rise and fall of political party systems mark the history of the American Empire, 1830-1930. During this time, the USA emerged from colonial dependency at the edge of the British Empire (after the War of 1812) and established a bipartisan political system (after the election of Jackson in 1828), which was destroyed by the irrepressible conflict between institutionalized Slavery and the challenge of Abolitionism, 1830-1860, culminating in the Civil War. After the election of 1860, a new bipartisan system and renewed industrial capitalist expansion (especially after the political storm from Reconstruction to Populism, 1876-1896) …
Beyond Gis: The Promise Of Spatial Humanities, David J. Bodenhamer
Beyond Gis: The Promise Of Spatial Humanities, David J. Bodenhamer
Purdue GIS Day
Geospatial technologies such as Geographic Information Systems (GIS) have facilitated the (re)discovery of space for humanists. Yet until recently GIS has had only limited ability to move us beyond a map of geographical space into a richer, more evocative concepts of place based on history and memory. Over the past few years, GIScientists have made advances in spatial multi-media, in GIS-enabled web services, geo-visualization, cyber geography, and virtual reality that provide capabilities far exceeding the abilities of GIS on its own. This presentation will explore how the convergence of technologies, including but not limited to GIS, has led to the …
Webservices And Gis-Based Management System For Qingshuihai Reservoir, Larry Theller, Yonggui Wang, Wanshun Zhang, Shan Hu
Webservices And Gis-Based Management System For Qingshuihai Reservoir, Larry Theller, Yonggui Wang, Wanshun Zhang, Shan Hu
Purdue GIS Day
The development of a modern integrated water quality model of Qingshuihai Reservoir and its watershed would permit decision-makers and water quality managers to address mechanisms underlying observed trends in water quality within Qingshuihai Reservoir, to assess the potential benefits of reductions in point source, non-point source inputs of nutrients, and to provide the Authority with a user-friendly management software for basin management and drinking water security system.
Giscience Driven R&D: Interdisciplinary Gist Group At Oak Ridge National Laboratory, Marie Urban
Giscience Driven R&D: Interdisciplinary Gist Group At Oak Ridge National Laboratory, Marie Urban
Purdue GIS Day
Oak Ridge National Laboratory (ORNL) is the largest DOE multi-research facility in the US and is located in Oak Ridge, TN. One of the signature strengths of ORNL is Computational Science and Engineering and the Geographic Information Science and Technology (GIST) group contributes to that strength as part of the Computer Sciences and Engineering Division (CSED) within the Computer Sciences Directorate. The GIST group is at the forefront of High Resolution Population and Social Dynamics research and development resulting in innovative products such as LandScan Global (population distribution at 30 arc seconds) and now LandScan HD (population distribution at 3 …
Indianamap Gis Resources, Phil Worrall
Indianamap Gis Resources, Phil Worrall
Purdue GIS Day
The IndianaMap.org web site makes over 260 separate layers of GIS data and services easily discoverable, viewable and available in various formats for use by everyone. This presentation will discuss how IndianaMap provides statewide GIS data layers and technology.
- Introduction to IGIC, the IndianaMap and how it works.
- IndianaMap County Data Sharing initiative
- Statewide Orthophotography-LiDAR data
- Local-Resolution National Hydrography Data (NHD) Development
- ISDP & IndianaMap resources
- IndianaOpenTopography Server
- What’s Next (Arcgis.com & Open Data Portal)
Mapping Lake Michigan Fish Catch Data, Jacob Wodd, Jarrod Doucette, Tomas O. Höök
Mapping Lake Michigan Fish Catch Data, Jacob Wodd, Jarrod Doucette, Tomas O. Höök
Purdue GIS Day
The only Great Lake completely contained in the U.S., Lake Michigan offers an abundance of recreational fishing. This project takes 20 years’ worth of salmonid fish catch data, and uses GIS to organize and visually represent the data in a way that is meaningful and helpful to local fisherman and researchers. Species represented included Brown Trout, Lake Trout, Rainbow Trout, Chinook Salmon, and Coho Salmon. The species are organized by both decadal and yearly spans, as well as catch per trip, catch per angler hour, and total catches. These data are the foundation for a web based app that allows …
Functional Approach To Simulating Short Rotation Woody Crops In Process Based Models, Tian Guo, Bernard Engel
Functional Approach To Simulating Short Rotation Woody Crops In Process Based Models, Tian Guo, Bernard Engel
Purdue GIS Day
Short rotation woody crops (SRWC) such as hybrid poplar have great potential as a biofuel feedstock. Biomass yields and yield stability at potential sites are important considerations when such SRWC is widely planted. To simulate poplar growth accurately, the functional components and parameters of hybrid poplar Tristis #1 (Populus balsamifera L. × P.tristis Fisch) were determined, and related algorithms improved in ALMANAC and SWAT based on improved simulation of leaf area and plant biomass as well as biomass partitioning. The improved tree growth simulation was applied to hybrid poplar plots in Wisconsin, and the modeled biomass yield, and LAI were …
Gis Professional Certification 2.0: Putting Gis To The Test, Nancy Obermeyer
Gis Professional Certification 2.0: Putting Gis To The Test, Nancy Obermeyer
Purdue GIS Day
No abstract provided.
Gis Day 2014 Additional Resources, Larry Theller
Imls Place Grant: Press Release 2, Place Project Group
Imls Place Grant: Press Release 2, Place Project Group
PLACE Project
Press release dated October 25, 2014, describing the PLACE (Position-based Location Archive Coordinate Explorer) project that is funded by the Institute for Museum and Library Services. The University of New Hampshire (UNH) library partnered with the UNH Earth Systems Research Center to develop a geospatial interface that is searchable by geospatial coordinates.
Sent to the Geoportal Web page (Patrick Florence).
Sustainability Planning, Environmental Justice And Climate Change: Applications Of The Long Island Markal Model, David S. Friedman, Yehuda Klein, Jose Pillich, Michael T. Sullivan
Sustainability Planning, Environmental Justice And Climate Change: Applications Of The Long Island Markal Model, David S. Friedman, Yehuda Klein, Jose Pillich, Michael T. Sullivan
Suburban Sustainability
As pointed out by many authors, sustainability is often vague and amorphous (See, for example, Dovers, 1989; Faber, et al, 2005; Glavič, et al. 2007). There is a clear need to make analytical and data-driven analyses of established and or proposed plans. MARKAL (MARKet ALlocation model) is an analytical tool that can be used characterize the impacts of sustainability plans at multiple spatial scales: global, national, regional, and local. In this study we apply the Long Island MARKAL model to answer three interrelated issues: 1, the development and incremental improvement of local and regional sustainability plans; 2, the impact of …
Vinoflot Rs Unification Of Unmanned Aerial Systems And Remote Sensing Practices To Better Analyze Grapevine Health, James M. White
Vinoflot Rs Unification Of Unmanned Aerial Systems And Remote Sensing Practices To Better Analyze Grapevine Health, James M. White
Geography and the Environment: Graduate Student Capstones
Success in agriculture is derived from nutrient-rich soil, well-tilled earth and hands-on attention. In order to meet the needs of increasing food demand, agricultural practices have endured a growing use of chemical and fertilization methods in order to produce higher yields. While the transition to an entirely chemical-free agricultural model is not achievable with regard to the quantity of crop yield, the integration of new technology and updated practices can lessen the amount of chemical and fertilizer adjuncts needed. The purpose of this plan is to offer a lightweight, customizable GIS solution to better understand crop health, in particular grapevines …
A New Forensics: Developing Standard Remote Sensing Methodologies To Detect And Document Mass Atrocities, Nathaniel A. Raymond, Brittany L. Card, Isaac L. Baker
A New Forensics: Developing Standard Remote Sensing Methodologies To Detect And Document Mass Atrocities, Nathaniel A. Raymond, Brittany L. Card, Isaac L. Baker
Genocide Studies and Prevention: An International Journal
Aim: The aim of this article is to highlight potential methods applicable to a standard forensic approach for the analysis of high-resolution satellite imagery that may contain evidence of alleged mass atrocities.
Methods: The primary method employed is the retrospective analysis of a case study involving the use of high-resolution satellite imagery analysis to document alleged mass atrocities. The case study utilized herein is the Satellite Sentinel Project’s reporting on the May 2011 sacking of Abyei Town by Government of Sudan-aligned armed actors. In the brief case study, categories of objects, patterns of activities, and types of alleged mass atrocity …
Grid: A Methodology Integrating Witness Testimony And Satellite Imagery Analysis For Documenting Alleged Mass Atrocities, Brittany L. Card, Isaac L. Baker
Grid: A Methodology Integrating Witness Testimony And Satellite Imagery Analysis For Documenting Alleged Mass Atrocities, Brittany L. Card, Isaac L. Baker
Genocide Studies and Prevention: An International Journal
Aim: This article documents the development and initial use case of the GRID (Ground Reporting through Imagery Delivery) methodology by the Harvard Humanitarian Initiative (HHI). GRID was created to support corroboration of witness testimony of mass atrocity related-events using satellite imagery analysis. A repeating analytic limitation of employing imagery for this purpose is that differences in the geographic knowledge of a witness and an imagery analyst can limit or impede corroboration.
Methods: The primary method used in this article is a case study of HHI’s development and use of GRID. The GRID methodology was designed during HHI’s work with the …
Mapping Forest Canopy Structure With On-Demand Fusion Of Remotely Sensed Data, Gordon M. Green
Mapping Forest Canopy Structure With On-Demand Fusion Of Remotely Sensed Data, Gordon M. Green
Dissertations, Theses, and Capstone Projects
Current methods of mapping forest canopy structure often result in data products that are limited in resolution, coverage, or ease of access. On-demand processing introduces several new ways in which existing data products can be combined and re-purposed, mitigating some of these limitations. In this research, we investigate several methods of extending the spatial and temporal resolution, coverage, and accessibility of existing forest canopy datasets by processing them on demand. These methods include downscaling coarse-resolution canopy height data dynamically to estimate height at 30 m and 1 m resolution for any location within the contiguous United States. A related method …
No More Hidden Secrets: Human Rights Violations And Remote Sensing, Tommy O'Connell, Stephen Young
No More Hidden Secrets: Human Rights Violations And Remote Sensing, Tommy O'Connell, Stephen Young
Genocide Studies and Prevention: An International Journal
Aim: This study used both high resolution and medium resolution satellite imagery to test three semi-automated remote sensing methods, in an attempt to identify useful tools to support eye-witness testimony and reports on human rights violations. As huts are routinely burned down during attacks on a village, particularly in Sudan, the number of huts and villages burned can be used to corroborate on-the-ground reports.
Methods: Three remote sensing methods (Supervised Classification, Change Detection, and Feature Extraction) were performed on imagery from both before the attacks in February 2006 and after the attacks to examine any useful trends that could be …
The Sea Level Rise Inundation Tool, Molly Mitchell
The Sea Level Rise Inundation Tool, Molly Mitchell
September 19, 2014: Comparing Flooding and Sea Level Rise Risk Assessment Tools
No abstract provided.
Poverty In The Twin Cities Using Gis Studying, Je Moua
Poverty In The Twin Cities Using Gis Studying, Je Moua
Journal of Undergraduate Research at Minnesota State University, Mankato
Geographic Information Systems (GIS) allow easy comparison of spatial phenomenon with other variables and output the results onto maps which non-specialist audience can easily interpret and analyze. This study made an effort to understand the spatial distribution of poverty within the Twin Cities Metro Area. Poverty distribution is compared with but not limited to the selected variables such as education level, education funding, family size, family composition, infrastructure distribution, and illicit drugs. The Census 2000 family income variables have been analyzed and mapped using GIS. According to federal guidelines in 2000, the poverty threshold for a family of three was …
Using Gist Features To Constrain Search In Object Detection, Joanna Browne Solmon
Using Gist Features To Constrain Search In Object Detection, Joanna Browne Solmon
Dissertations and Theses
This thesis investigates the application of GIST features [13] to the problem of object detection in images. Object detection refers to locating instances of a given object category in an image. It is contrasted with object recognition, which simply decides whether an image contains an object, regardless of the object's location in the image.
In much of computer vision literature, object detection uses a "sliding window" approach to finding objects in an image. This requires moving various sizes of windows across an image and running a trained classifier on the visual features of each window. This brute force method can …
Using Gis To Facilitate Data Driven Decision Making, Jason Glatz
Using Gis To Facilitate Data Driven Decision Making, Jason Glatz
University Libraries Faculty & Staff Presentations
This poster presents two methods for using Geographic Information Systems (GIS) to assist in data driven facilities management, with a primary focus on space planning and use. One method focuses on using GIS to analyze new book additions to the collection and their relationship to existing storage capacity. By treating each shelving range like a street, and each book like an address, the added books can be plotted on the range. This allows for a convenient visual analysis of the spatial growth of new books. GIS is also used to represent the remaining storage capacity of each section within a …
Use Of Unmanned Aerial Vehicles (Uav) For Urban Tree Inventories, Brian Ritter
Use Of Unmanned Aerial Vehicles (Uav) For Urban Tree Inventories, Brian Ritter
All Theses
In contrast to standard aerial imagery, unmanned aerial systems (UAS) utilize recent technological advances to provide an affordable alternative for imagery acquisition. Increased value can be realized through clarity and detail providing higher resolution (2-5 cm) over traditional products. Many natural resource disciplines such as urban forestry will benefit from UAS. Tree inventories for risk assessment, biodiversity, planning, and design can be efficiently achieved with the UAS. Recent advances in photogrammetric processing have proved automated methods for three dimensional rendering of aerial imagery. Point clouds can be generated from images providing additional benefits. Association of spatial locational information within the …
Integrated (Remote Sensing, Gis, And Modeling) Hydrological Investigation And Landslide Susceptibility Studies In The Arabian Shield, Talal Ghazi Alharbi
Integrated (Remote Sensing, Gis, And Modeling) Hydrological Investigation And Landslide Susceptibility Studies In The Arabian Shield, Talal Ghazi Alharbi
Dissertations
An integrated approach (remote sensing, geographical information systems [GIS], and modeling) was applied to conduct a number of hydrologic and environmental investigations in the Arabian Peninsula (AP) aimed at: (1) identifying the spatial and temporal climate change–related variations in precipitation over the AP using readily available, remotely acquired global precipitation data sets; (2) investigating the nature of the factors controlling the observed climatic variations; (3) estimating the partitioning of precipitation over the Red Sea Hills watersheds into runoff , recharge, and initial losses using calibrated continuous rainfall runoff models (Soil Water Assessment Tool [SWAT]); (4) identifying landslide (largely caused by …
Ambient Geographic Information And Risk Mapping, Todd Barr
Ambient Geographic Information And Risk Mapping, Todd Barr
Geography and the Environment: Graduate Student Capstones
Research on social media as an information source for emergency managers and epidemiologists is expanding at a rapid pace. When combined with the spatial predictive analysis methodology known as Risk Terrain Mapping and the capability of the local health agencies to response, the predictions of outbreaks and their affects can be modeled. This study attempts to create a spatial Risk Terrain Model outbreaks of influenza, and influenza like illnesses within the continental United States. The Risk Terrain Model will be built upon accepted epidemiological models form the Centers for Disease Control and Prevention, as well as Google’s Flu index and …