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653 full-text articles. Page 17 of 31.

Mapping Kenyan Grassland Heights Across Large Spatial Scales With Combined Optical And Radar Satellite Imagery, Olivia S. B. Spagnuolo, Julie C. Jarvey, Michael Battaglia, Zachary Laubach, Mary Ellen Miller, Kay E. Holekamp, Laura Bourgeau-Chavez 2020 Michigan State University

Mapping Kenyan Grassland Heights Across Large Spatial Scales With Combined Optical And Radar Satellite Imagery, Olivia S. B. Spagnuolo, Julie C. Jarvey, Michael Battaglia, Zachary Laubach, Mary Ellen Miller, Kay E. Holekamp, Laura Bourgeau-Chavez

Michigan Tech Publications, Part 1

Grassland monitoring can be challenging because it is time-consuming and expensive to measure grass condition at large spatial scales. Remote sensing offers a time- and cost-effective method for mapping and monitoring grassland condition at both large spatial extents and fine temporal resolutions. Combinations of remotely sensed optical and radar imagery are particularly promising because together they can measure differences in moisture, structure, and reflectance among land cover types. We combined multi-date radar (PALSAR-2 and Sentinel-1) and optical (Sentinel-2) imagery with field data and visual interpretation of aerial imagery to classify land cover in the Masai Mara National Reserve, Kenya using …


Comparing Individual Perceptions Of Food Desert With Quantitative Measures In Omaha, Nebraska., Hector N. Samani, Bradley Bereitschaft 2020 University of Nebraska at Omaha

Comparing Individual Perceptions Of Food Desert With Quantitative Measures In Omaha, Nebraska., Hector N. Samani, Bradley Bereitschaft

UNO Student Research and Creative Activity Fair

Food deserts have been linked to an increase in chronic diseases such as obesity and diabetes, due to lower access to affordable and healthy foods. The United States Department of Agriculture (USDA) outlines various methods and variables for defining food deserts, in attempts to standardize what constitutes a food desert or their characteristics. The USDA identifies the state of Nebraska as having both rural and urban food deserts, with an increase of food insecurity from 1.1% – 3.0% between 2007 and 2012 and warns of further increase of food deserts and its impact if measures are not taken. However, there …


Assessing Boreal Peat Fire Severity And Vulnerability Of Peatlands To Early Season Wildland Fire, Laura Bourgeau-Chavez, Sarah L. Grelik, Michael Billmire, Liza K. Jenkins, Eric S. Kasischke, Merritt R. Turetsky 2020 Michigan Technological University

Assessing Boreal Peat Fire Severity And Vulnerability Of Peatlands To Early Season Wildland Fire, Laura Bourgeau-Chavez, Sarah L. Grelik, Michael Billmire, Liza K. Jenkins, Eric S. Kasischke, Merritt R. Turetsky

Michigan Tech Publications, Part 1

Globally peatlands store large amounts of carbon belowground with 80% distributed in boreal regions of the northern hemisphere. Climate warming and drying of the boreal region has been documented as affecting fire regimes, with increased fire frequency, severity and extent. While much research is dedicated to assessing changes in boreal uplands, few research efforts are focused on the vulnerability of boreal peatlands to wildfire. In this case study, an integration of field data collection, land cover mapping of peatland types and Landsat-based fire severity mapping was conducted for four early season (May to mid-June) wildfires where peatlands are abundant in …


Urban Heat In Tropical Kuala Lumpur: Microclimate, Outdoor Thermal Comfort And Mitigation By Land-Cover Modification, Chng Saun Fong 2020 Universiti Malaya

Urban Heat In Tropical Kuala Lumpur: Microclimate, Outdoor Thermal Comfort And Mitigation By Land-Cover Modification, Chng Saun Fong

Student Works (2020-2029)

Urban heat island (UHI) is an urban warming phenomenon characterized by steep urban-rural temperature difference. Rapid land-use change in the urbanization process has introduced urban morphologies with impermeable surfaces and materials which causes higher heat retention in city centres. The emergence of urban hotspots is a growing concern due to the impact on the urban microclimate and human population. The comprehension of the multi-dimensional impact of UHI has become imperative to ensure good urban liveability especially in tropical cities where it is hot and humid annually. Hence, this study aims to explore the complex nexus of urban heat in terms …


Is Geographical Remoteness An Economic Disadvantage?, Jiaxuan Lu 2020 University of Southern California

Is Geographical Remoteness An Economic Disadvantage?, Jiaxuan Lu

Undergraduate Economic Review

Is the geographical location of a country deterministic to its level of economic development? Although economic geographers have been searching the answers to this question for decades, incongruities between different opinions still exist. This paper takes both theoretical and empirical approaches to provide a systematic answer to this question. Firstly, this paper uses industry-level gravity model of international trade to demonstrate that not all countries are negatively affected by geographical remoteness. Secondly, it employs a panel data of 83 countries from 2000 to 2017 and substantiates that while geographical remoteness decreases income levels and trade balances in OECD countries, it …


Spatial And Topological Analysis Of Urban Land Cover Structure In New Orleans Using Multispectral Aerial Image And Lidar Data, Shuxian Liu 2020 Louisiana State University

Spatial And Topological Analysis Of Urban Land Cover Structure In New Orleans Using Multispectral Aerial Image And Lidar Data, Shuxian Liu

LSU Master's Theses

Urban land use and land cover (LULC) mapping has been one of the major applications in remote sensing of the urban environment. Land cover refers to the biophysical materials at the surface of the earth (i.e. grass, trees, soils, concrete, water), while land use indicates the socio-economic function of the land (i.e., residential, industrial, commercial land uses). This study addresses the technical issue of how to computationally infer urban land use types based on the urban land cover structures from remote sensing data. In this research, a multispectral aerial image and high-resolution LiDAR topographic data have been integrated to investigate …


A Hiker's Pilgrimage In Carpathian Ruthenia, Nick Burdine 2020 Humboldt State University

A Hiker's Pilgrimage In Carpathian Ruthenia, Nick Burdine

Humboldt Geographic

No abstract provided.


Undamming The Klamath, Ivy Huwald 2020 Humboldt State University

Undamming The Klamath, Ivy Huwald

Humboldt Geographic

No abstract provided.


The Southern California Coast, Gilbert Trejo 2020 Humboldt State University

The Southern California Coast, Gilbert Trejo

Humboldt Geographic

No abstract provided.


Campus Resource Spaces Serve Latinx Students, Jackeline Pedroza 2020 Humboldt State University

Campus Resource Spaces Serve Latinx Students, Jackeline Pedroza

Humboldt Geographic

Includes Spanish version: Espacios del Campus Que Sirven Estudiantes Latinx


Alumni Update, 2020 Cal Poly Humboldt

Alumni Update

Humboldt Geographic

No abstract provided.


Department News, Lisa Bond-Maupin, Jenna Ver Meer, Nicholas A. Perdue, Amanda Kamlet 2020 Humboldt State University

Department News, Lisa Bond-Maupin, Jenna Ver Meer, Nicholas A. Perdue, Amanda Kamlet

Humboldt Geographic

No abstract provided.


Tracking Gentrification In Oakland, Massimo Lambert-Mullen, Gilbert Trejo 2020 Humboldt State University

Tracking Gentrification In Oakland, Massimo Lambert-Mullen, Gilbert Trejo

Humboldt Geographic

No abstract provided.


Photo Essay: Great Rift Valley, Tanzania, Jocelyn Keranen 2020 Humboldt State University

Photo Essay: Great Rift Valley, Tanzania, Jocelyn Keranen

Humboldt Geographic

No abstract provided.


Geomorphology And Chronology Of Sand Stringer Deposition Beyond The Ice Margin: Southeastern Minnesota And Western Wisconsin, Usa, Richard J. Mataitis 2020 Minnesota State University, Mankato

Geomorphology And Chronology Of Sand Stringer Deposition Beyond The Ice Margin: Southeastern Minnesota And Western Wisconsin, Usa, Richard J. Mataitis

All Graduate Theses, Dissertations, and Other Capstone Projects

The purpose of this Master’s thesis is to investigate linear, aeolian deposits termed “sand stringers” located within western Wisconsin and southeastern Minnesota. Previous research has investigated their spatial distribution, and to a minor extent, their composition and absolute age. However, further sedimentological and absolute age data are needed from a greater distribution of sand stringers to understand their formation and depositional chronology. To build on previous research we 1) remotely mapped the spatial distribution and orientation of sand stringers in western Wisconsin and southeastern Minnesota, 2) collected absolute age data using optically stimulated luminescence (OSL) from four stringers in western …


Remote Sensing Approaches To Predict Forest Characteristics In Northwest Montana, Ryan P. Rock 2020 University of Montana

Remote Sensing Approaches To Predict Forest Characteristics In Northwest Montana, Ryan P. Rock

Graduate Student Theses, Dissertations, & Professional Papers

Remote sensing can be utilized by land management organizations to save money and time. Mapping vegetation using either aerial photographs or satellite imagery and the applications for forest management are of particular interest to the Montana Department of Natural Resources. In 2018, the organization began a pilot program to test the incorporation of raster analysis of remotely sensed data into their inventory program and had limited success. This analysis identified two areas of improvement: the selection method of inventory plots and the imagery used for classification and metrics. This study found that selecting inventory plots using a generalized random tessellation …


The Influence Of Landforms And Sampling Approaches On Riparian Buffer Area And Complexity, Houjun Ding 2020 Michigan Technological University

The Influence Of Landforms And Sampling Approaches On Riparian Buffer Area And Complexity, Houjun Ding

Dissertations, Master's Theses and Master's Reports

A riparian area is a zone of interaction between aquatic and terrestrial ecosystems. Delineating accurate riparian management zones (RMZs), often utilized in Best Management Practices (BMPs) for wetlands and stream protection, is important. The Riparian Buffer Delineation Model (RBDM) has been used extensively for accurate RMZs delineation. Utilizing the validated RBDM generates additional questions about riparian area form and function, which will ideally lead to an improved understanding of the ecological process within these zones. This study aims to determine how geomorphic landforms and their associated landscape characteristics influence riparian areas in terms of shape and complexity, whether sampling methods …


Humboldt Geographic, Full Issue, 2020 Cal Poly Humboldt

Humboldt Geographic, Full Issue

Humboldt Geographic

No abstract provided.


Cover And Table Of Contents, 2020 Cal Poly Humboldt

Cover And Table Of Contents

Humboldt Geographic

No abstract provided.


Faculty And Staff, 2020 Cal Poly Humboldt

Faculty And Staff

Humboldt Geographic

No abstract provided.


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