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Articles 121 - 150 of 2332
Full-Text Articles in Entire DC Network
Long-Term Measurements Of Seasonal Snowpacks Indicate Increases In Mid-Winter Snowmelt And Earlier Snowpack Disappearance In The Northeastern U.S., Geoff Wilson, Mark Green, John Campbell, Alexandra R. Contosta, Nina Lany, Amey Bailey
Long-Term Measurements Of Seasonal Snowpacks Indicate Increases In Mid-Winter Snowmelt And Earlier Snowpack Disappearance In The Northeastern U.S., Geoff Wilson, Mark Green, John Campbell, Alexandra R. Contosta, Nina Lany, Amey Bailey
Faculty Publications
Snowpacks are changing in northeastern North America as the regional climate warms, yet the relative influence of changes in precipitation compared to changes in ablation on snowpacks is poorly understood. We use 56 years of weekly snow water equivalent (SWE) measurements from three locations within a study site which vary in elevation and aspect, paired with adjacent daily climate measurements, to investigate relationships between climate and snowpack onset, maximum, and disappearance. Maximum snowpack size and snowpack duration are shrinking at all sites, at rates ranging from 4.3 days/decade at the coldest site to 9.6 days/decade at the warmest site. The …
Long-Term Measurements Of Seasonal Snowpacks Indicate Increases In Mid-Winter Snowmelt And Earlier Snowpack Disappearance In The Northeastern U.S., Geoff Wilson, Mark Green, John Campbell, Alexandra R. Contosta, Nina Lany, Amey Bailey
Long-Term Measurements Of Seasonal Snowpacks Indicate Increases In Mid-Winter Snowmelt And Earlier Snowpack Disappearance In The Northeastern U.S., Geoff Wilson, Mark Green, John Campbell, Alexandra R. Contosta, Nina Lany, Amey Bailey
Faculty Publications
Snowpacks are changing in northeastern North America as the regional climate warms, yet the relative influence of changes in precipitation compared to changes in ablation on snowpacks is poorly understood. We use 56 years of weekly snow water equivalent (SWE) measurements from three locations within a study site which vary in elevation and aspect, paired with adjacent daily climate measurements, to investigate relationships between climate and snowpack onset, maximum, and disappearance. Maximum snowpack size and snowpack duration are shrinking at all sites, at rates ranging from 4.3 days/decade at the coldest site to 9.6 days/decade at the warmest site. The …
Arctic Communities In The Face Of Change: Resilience, Governance, And Well-Being, Abigail York, Andrey N. Petrov, Victoria N. Sharakhmatova, Tatiana Degai, Liza Mack, Vera Metcalf, Rodion Sulyandziga, Sean Asikłuk Topkok, Eduard Zdor
Arctic Communities In The Face Of Change: Resilience, Governance, And Well-Being, Abigail York, Andrey N. Petrov, Victoria N. Sharakhmatova, Tatiana Degai, Liza Mack, Vera Metcalf, Rodion Sulyandziga, Sean Asikłuk Topkok, Eduard Zdor
Faculty Publications
This chapter brings together insights from Indigenous scholars and experts from the North Pacific, focusing on the Bering Strait region, within a framework emphasizing multi-level governance derived from western academic literature. The chapter highlights a ground-up view of the complexities and challenges Indigenous communities face in this region. Narratives emphasize community experiences in a rapidly changing Arctic with a particular focus on the environment and economy. Yet, there is great diversity in the experiences as well as the threats, emphasizing the need to Indigenize concepts such as environment, economy, governance, and sustainable development. Highlighting local narratives, we explore both unique …
Appropriateness Of Ambulatory Antibiotic Prescribing In South Carolina, 2012–2017, Pamela Bailey, Majdi N. Al-Hasan, Julie Royer, Max Habicht, Julie Ann Justo, P. Brandon Bookstaver Pharm.D., Sharon Weissman, Hana R. Winders
Appropriateness Of Ambulatory Antibiotic Prescribing In South Carolina, 2012–2017, Pamela Bailey, Majdi N. Al-Hasan, Julie Royer, Max Habicht, Julie Ann Justo, P. Brandon Bookstaver Pharm.D., Sharon Weissman, Hana R. Winders
Faculty Publications
This population-based cohort study examines the appropriateness of antibiotic prescribing in South Carolina via aggregated pharmacy claims data matched with diagnosis codes from medical claims. Inappropriate antibiotic prescribing decreased from 30.2% in 2012 to 22.6% in 2017 (P < 0.001) and was more common in adults >40 years old.
Utilizing Extractive Transportation Infrastructures For Subsistence Livelihoods: Experience Of Evenki Communities In Eastern Siberia, Vera Kuklina, Viktoriya Filippova, Natalia Krasnoshtanova, Antonina Savvinova, Viktor Bogdanov, Mariia Kuklina
Utilizing Extractive Transportation Infrastructures For Subsistence Livelihoods: Experience Of Evenki Communities In Eastern Siberia, Vera Kuklina, Viktoriya Filippova, Natalia Krasnoshtanova, Antonina Savvinova, Viktor Bogdanov, Mariia Kuklina
Faculty Publications
The availability of natural resources drives the exploration and transformation of remote regions in the Arctic and beyond. Extractive infrastructure is one of the major sources of industrial development and environmental impact on landscapes. For Indigenous people, these landscapes are homely environments full of sentient beings, and for other local communities, they provide a wide variety of subsistence and hunting resources. While extractive infrastructure violence is the evident issue for many Indigenous communities, there are more complicated situations where extractive infrastructure is adopted and utilized for the subsistence and support of other human and more-than-human relations in local and Indigenous …
Cgbi_Yolo: Lightweight Land Target Detection Network, Ruiyang Wang, Siyu Lu, Jiawei Tian, Lirong Yin, Lei Wang, Xiaobing Chen, Wenfeng Zheng
Cgbi_Yolo: Lightweight Land Target Detection Network, Ruiyang Wang, Siyu Lu, Jiawei Tian, Lirong Yin, Lei Wang, Xiaobing Chen, Wenfeng Zheng
Faculty Publications
Object detection algorithms for optical remote sensing images often face challenges in computational efficiency, particularly when detecting small and densely packed targets. This paper introduces CGBi_YOLO, a novel lightweight land target detection network designed to optimize computational resource utilization while maintaining detection capabilities for small-scale targets. Our approach incorporates an innovative lightweight optimization strategy featuring a new lightweight backbone feature extraction network: CSPGhostNet. This model significantly enhances the detection ability of small objects within optical remote sensing images without increasing computational demands. The efficacy of the proposed model is validated through rigorous experimentation on the DOTA dataset. Compared to the …
Research Overview On Urban Heat Islands Driven By Computational Intelligence, Chao Liu, Siyu Lu, Jiawei Tian, Lirong Yin, Lei Wang, Wenfeng Zheng
Research Overview On Urban Heat Islands Driven By Computational Intelligence, Chao Liu, Siyu Lu, Jiawei Tian, Lirong Yin, Lei Wang, Wenfeng Zheng
Faculty Publications
In recent years, the intensification of the urban heat island (UHI) effect has become a significant concern as urbanization accelerates. This survey comprehensively explores the current status of surface UHI research, emphasizing the role of land use and land cover changes (LULC) in urban environments. We conducted a systematic review of 8260 journal articles from the Web of Science database, employing bibliometric analysis and keyword co-occurrence analysis using CiteSpace to identify research hotspots and trends. Our investigation reveals that vegetation cover and land use types are the two most critical factors influencing UHI intensity. We analyze various computational intelligence techniques, …
Current Situation And Prospect Of Geospatial Ai In Air Pollution Prediction, Chunlai Wu, Siyu Lu, Jiawei Tian, Lirong Yin, Lei Wang, Wenfeng Zheng
Current Situation And Prospect Of Geospatial Ai In Air Pollution Prediction, Chunlai Wu, Siyu Lu, Jiawei Tian, Lirong Yin, Lei Wang, Wenfeng Zheng
Faculty Publications
Faced with increasingly serious environmental problems, scientists have conducted extensive research, among which the importance of air quality prediction is becoming increasingly prominent. This article briefly reviews the utilization of geographic artificial intelligence (AI) in air pollution. Firstly, this paper conducts a literature metrology analysis on the research of geographical AI used in air pollution. That is, 607 documents are retrieved from the Web of Science (WOS) using appropriate keywords, and literature metrology analysis is conducted using Citespace to summarize research hotspots and frontier countries in this field. Among them, China plays a constructive role in the fields of geographic …
Gleaning Rural Journalism: Rural Journalists' Agricultural And Environmental Reporting Utilizing Community Storytelling Networks☆, Jessica Walsh, Mildred F. Perreault, Greg Perreault, Ruth Moon
Gleaning Rural Journalism: Rural Journalists' Agricultural And Environmental Reporting Utilizing Community Storytelling Networks☆, Jessica Walsh, Mildred F. Perreault, Greg Perreault, Ruth Moon
Faculty Publications
Environmental concerns are growing in parts of the rural United States as drinking water wells become contaminated with agrichemicals, and climate change impacts such as drought and extreme rain events disrupt farming practices. Analyzing in-depth interviews with 29 U.S. rural journalists, we explore the role rural journalists play when reporting on the environment as it relates to agricultural issues. Findings show that reporting about the environment—such as weather, climate change, water shortages, and droughts—appear in rural journalists' stories given those topics' relevance to their rural communities and the social systems forces exerting influence on journalists, yet rural journalists often do …
Roman History In Sibylline Oracle 13: A Palestinian Jewish Perspective On Emperors, Usurpers, And Saviors During The Third Century Ce (Part Two: From Decius To Odenath Of Palmyra), Kenneth Atkinson
Faculty Publications
Sibylline Oracle 13 is a remarkable historical document that contains a unique perspective on the poorly documented period of Roman history known as the “Crisis of the Third Century (235-284 CE), which began with the assassination of the Roman emperor Severus Alexander (222-235 CE), the last ruler of the Severan dynasty. This turbulent era was marked by nearly fifty years of civil wars, barbarian invasions, rebellions, and approximately twenty-six claimants to the throne. Although the end of this turmoil under Diocletian (284-305 CE) is well known, we have little information about much of this century, particularly its first decades. The …
Human Capital Assessment In Indigenous Regions To Enable Sustainable Futures, Victoria N. Sharakhmatova, Elena G. Mikhailova
Human Capital Assessment In Indigenous Regions To Enable Sustainable Futures, Victoria N. Sharakhmatova, Elena G. Mikhailova
Faculty Publications
This study is dedicated to the economic valuation of human capital (HC) in the regions where the Indigenous peoples of Kamchatka reside. The entire Kamchatksky Krai is considered an Indigenous people’s ancestral territory. However, in this study, only municipalities whose population is more than one-third Indigenous were chosen for the assessment. This includes six municipal districts and one urban district (Aleytsky, Bystrinsky, Karaginsky, Olyutorsky, Penzhinsky, and Tigilsky municipal districts and Palana urban district). The study employs statistical analysis and integrated, situational approaches: the investment approach was deemed the most appropriate tool for the economic assessment of HC in Indigenous territories. …
The Climate Impact Of Tropical Peatland Degradation, René Dommain, Steve Frolking, Aurich Jeltsch-Thömmes, Fortunat Joos, John Couwenberg, Paul Glaser, Alexander Cobb, Charles Harvey
The Climate Impact Of Tropical Peatland Degradation, René Dommain, Steve Frolking, Aurich Jeltsch-Thömmes, Fortunat Joos, John Couwenberg, Paul Glaser, Alexander Cobb, Charles Harvey
Faculty Publications
Southeast Asia is a global hotspot of peatland degradation and related greenhouse gas emissions. Anthropogenic impacts, mainly associated with agricultural conversion, shift Southeast Asian peatlands from carbon sinks to significant carbon sources. Here we first describe the impacts of anthropogenic drainage on landscape-scale carbon dynamics of individual peatlands and then use an impulse‐response model of radiative forcing to quantify the climate impacts of peat-carbon losses. Whereas water-table elevation (i.e. drainage depth) determines the magnitude of CO2 emissions at the site-scale, the geometric arrangement of artificial drainage networks determines carbon losses on the landscape-scale. Among all peatland greenhouse gas fluxes, the …
A Study Of The Near-Surface Vertical Distribution And Chemistry Of Pollutants In Cold-Climate Urban Areas With The Novel Pact-1d Model, Jonas Kuhn, Jochen Stutz, Meeta Cesler-Maloney, William R. Simpson, Thorsten Bartels-Rausch, Tjarda J. Roberts, Jennie L. Thomas, Jack E. Dibb, Laura Heinlein, Michael O. Sunday, Cort Anastasio, Kathleen Fahey, James H. Flynn, Fangzhou Guo
A Study Of The Near-Surface Vertical Distribution And Chemistry Of Pollutants In Cold-Climate Urban Areas With The Novel Pact-1d Model, Jonas Kuhn, Jochen Stutz, Meeta Cesler-Maloney, William R. Simpson, Thorsten Bartels-Rausch, Tjarda J. Roberts, Jennie L. Thomas, Jack E. Dibb, Laura Heinlein, Michael O. Sunday, Cort Anastasio, Kathleen Fahey, James H. Flynn, Fangzhou Guo
Faculty Publications
Cold-climate urban areas often face severe air pollution events in wintertime because of residential heating and vehicle emissions into shallow surface inversion layers. Many state-of-the-art regional chemistry-transport models cannot capture the small spatio-temporal scale of the transport and chemical processes occurring in these environments.Here we introduce a new version of our one-dimensional atmospheric chemistry and transport model, PACT-1D that includes continuous exchange of atmospheric air with the interstitial air of a snow layer and a kinetic treatment of multi-phase chemical processes in air and snow. PACT-1D allows modeling and assessment of the interaction of transport, chemistry, and emissions on the …
The Climate Impact Of Tropical Peatland Degradation, René Dommain, Steve Frolking, Aurich Jeltsch-Thömmes, Fortunat Joos, John Couwenberg, Paul Glaser, Alexander Cobb, Charles Harvey
The Climate Impact Of Tropical Peatland Degradation, René Dommain, Steve Frolking, Aurich Jeltsch-Thömmes, Fortunat Joos, John Couwenberg, Paul Glaser, Alexander Cobb, Charles Harvey
Faculty Publications
Southeast Asia is a global hotspot of peatland degradation and related greenhouse gas emissions. Anthropogenic impacts, mainly associated with agricultural conversion, shift Southeast Asian peatlands from carbon sinks to significant carbon sources. Here we first describe the impacts of anthropogenic drainage on landscape-scale carbon dynamics of individual peatlands and then use an impulse‐response model of radiative forcing to quantify the climate impacts of peat-carbon losses. Whereas water-table elevation (i.e. drainage depth) determines the magnitude of CO2 emissions at the site-scale, the geometric arrangement of artificial drainage networks determines carbon losses on the landscape-scale. Among all peatland greenhouse gas fluxes, the …
A Study Of The Near-Surface Vertical Distribution And Chemistry Of Pollutants In Cold-Climate Urban Areas With The Novel Pact-1d Model, Jonas Kuhn, Jochen Stutz, Meeta Cesler-Maloney, William R. Simpson, Thorsten Bartels-Rausch, Tjarda J. Roberts, Jennie L. Thomas, Jack E. Dibb, Laura Heinlein, Michael O. Sunday, Cort Anastasio, Kathleen Fahey, James H. Flynn, Fangzhou Guo
A Study Of The Near-Surface Vertical Distribution And Chemistry Of Pollutants In Cold-Climate Urban Areas With The Novel Pact-1d Model, Jonas Kuhn, Jochen Stutz, Meeta Cesler-Maloney, William R. Simpson, Thorsten Bartels-Rausch, Tjarda J. Roberts, Jennie L. Thomas, Jack E. Dibb, Laura Heinlein, Michael O. Sunday, Cort Anastasio, Kathleen Fahey, James H. Flynn, Fangzhou Guo
Faculty Publications
Cold-climate urban areas often face severe air pollution events in wintertime because of residential heating and vehicle emissions into shallow surface inversion layers. Many state-of-the-art regional chemistry-transport models cannot capture the small spatio-temporal scale of the transport and chemical processes occurring in these environments.Here we introduce a new version of our one-dimensional atmospheric chemistry and transport model, PACT-1D that includes continuous exchange of atmospheric air with the interstitial air of a snow layer and a kinetic treatment of multi-phase chemical processes in air and snow. PACT-1D allows modeling and assessment of the interaction of transport, chemistry, and emissions on the …
Air Quality Improvements Can Strengthen China's Food Security, Xiang Liu, Bowen Chu, Rong Tang, Yifan Liu, Xing Li, Jingfeng Xiao, Ankur Desai, Haikun Wang
Air Quality Improvements Can Strengthen China's Food Security, Xiang Liu, Bowen Chu, Rong Tang, Yifan Liu, Xing Li, Jingfeng Xiao, Ankur Desai, Haikun Wang
Faculty Publications
China, with nearly 20% of the world's population, achieves self-sufficiency in major grain production using only about 10% of the global arable land. To further ensure food security in China, it is crucial to gain a deep understanding of the driving factors behind grain production. Climate change, water scarcity, and air pollution pose serious threats to food production. Air quality in China is among the poorest in the world, thus quantifying its impact on grain production not only holds significance for maintaining its food security but also provides valuable insights into future air quality management policies. Here, we conducted a …
Air Quality Improvements Can Strengthen China's Food Security, Xiang Liu, Bowen Chu, Rong Tang, Yifan Liu, Xing Li, Jingfeng Xiao, Ankur Desai, Haikun Wang
Air Quality Improvements Can Strengthen China's Food Security, Xiang Liu, Bowen Chu, Rong Tang, Yifan Liu, Xing Li, Jingfeng Xiao, Ankur Desai, Haikun Wang
Faculty Publications
China, with nearly 20% of the world's population, achieves self-sufficiency in major grain production using only about 10% of the global arable land. To further ensure food security in China, it is crucial to gain a deep understanding of the driving factors behind grain production. Climate change, water scarcity, and air pollution pose serious threats to food production. Air quality in China is among the poorest in the world, thus quantifying its impact on grain production not only holds significance for maintaining its food security but also provides valuable insights into future air quality management policies. Here, we conducted a …
A New Synthesis Of Arctic-Boreal Carbon Fluxes For Improved Carbon Budget Estimates, Anna Virkkala, Isabel Wargowsky, Judith Vogt, Mckenzie Kuhn, Susan Natali, Brendan Rogers, Mathias Goeckede, Kyle Arndt, Jennifer Watts, Tiffany Windholz, Simran Madaan
A New Synthesis Of Arctic-Boreal Carbon Fluxes For Improved Carbon Budget Estimates, Anna Virkkala, Isabel Wargowsky, Judith Vogt, Mckenzie Kuhn, Susan Natali, Brendan Rogers, Mathias Goeckede, Kyle Arndt, Jennifer Watts, Tiffany Windholz, Simran Madaan
Faculty Publications
The Arctic-boreal zone and its permafrost regions have historically been sparsely measured for carbon dioxide and methane fluxes. This data sparsity has created significant uncertainties in Arctic-boreal carbon budget estimates. However, over the past decade, the availability of Arctic-boreal carbon flux data has increased substantially. Yet, it remains scattered across different repositories, papers, and unpublished sources, making it hard to estimate more accurate Arctic-boreal carbon budgets. To address this research gap, we have compiled a database of Arctic-boreal carbon fluxes (ABCFlux v2) from flux repositories, literature, and site principal investigators, which will be openly distributed. The database includes carbon dioxide …
Monitoring And Modeling Urban Temperature Patterns In The State Of Iowa, Usa, Utilizing Mobile Sensors And Geospatial Data, Clemir Abbeg Coproski, Bingqing Liang, James T. Dietrich, John Degroote
Monitoring And Modeling Urban Temperature Patterns In The State Of Iowa, Usa, Utilizing Mobile Sensors And Geospatial Data, Clemir Abbeg Coproski, Bingqing Liang, James T. Dietrich, John Degroote
Faculty Publications
Thorough investigations into air temperature variation across urban environments are essential to address concerns about city livability. With limited research on smaller cities, especially in the American Midwest, the goal of this research was to examine the spatial patterns of air temperature across multiple small to medium-sized cities in Iowa, a relatively rural US state. Extensive fieldwork was conducted utilizing manually built mobile temperature sensors to collect air temperature data at a high temporal and spatial resolution in ten Iowa urban areas during the afternoon, evening, and night on days exceeding 32 °C from June to September 2022. Using the …
From "Open Ocean" To "Exposed Aquaculture": Why And How We Are Changing The Standard Terminology Describing "Offshore Aquaculture", Tyler Sclodnick, Michael Chambers, Barry Antonio Costa-Pierce, Tobias Dewhurst, Nils Goseberg, Kevin Gerald Heasman, Wolf Isbert, Gesche Krause, Daniel Wieczorek, Till Markus, Bela H. Buck
From "Open Ocean" To "Exposed Aquaculture": Why And How We Are Changing The Standard Terminology Describing "Offshore Aquaculture", Tyler Sclodnick, Michael Chambers, Barry Antonio Costa-Pierce, Tobias Dewhurst, Nils Goseberg, Kevin Gerald Heasman, Wolf Isbert, Gesche Krause, Daniel Wieczorek, Till Markus, Bela H. Buck
Faculty Publications
The term “offshore” with regards to aquaculture has hitherto encompassed various perspectives, including technology, geographic location, legal jurisdiction, and more. To resolve the ambiguity in this term and understand its implications for current and future aquaculture development, “offshore” should be resolved into two separate metrics: distance from shore and energy exposure. The United Nations Convention on the Law of the Sea (UNCLOS) distinguishes between internal waters, territorial sea, contiguous zone, exclusive economic zone (EEZ), and the high seas, but currently has no precise definition for “offshore” in its provisions, and therefore no applicable laws pertaining to “offshore” aquaculture. Regulating a …
From "Open Ocean" To "Exposed Aquaculture": Why And How We Are Changing The Standard Terminology Describing "Offshore Aquaculture", Tyler Sclodnick, Michael Chambers, Barry Antonio Costa-Pierce, Tobias Dewhurst, Nils Goseberg, Kevin Gerald Heasman, Wolf Isbert, Gesche Krause, Daniel Wieczorek, Till Markus, Bela H. Buck
From "Open Ocean" To "Exposed Aquaculture": Why And How We Are Changing The Standard Terminology Describing "Offshore Aquaculture", Tyler Sclodnick, Michael Chambers, Barry Antonio Costa-Pierce, Tobias Dewhurst, Nils Goseberg, Kevin Gerald Heasman, Wolf Isbert, Gesche Krause, Daniel Wieczorek, Till Markus, Bela H. Buck
Faculty Publications
The term “offshore” with regards to aquaculture has hitherto encompassed various perspectives, including technology, geographic location, legal jurisdiction, and more. To resolve the ambiguity in this term and understand its implications for current and future aquaculture development, “offshore” should be resolved into two separate metrics: distance from shore and energy exposure. The United Nations Convention on the Law of the Sea (UNCLOS) distinguishes between internal waters, territorial sea, contiguous zone, exclusive economic zone (EEZ), and the high seas, but currently has no precise definition for “offshore” in its provisions, and therefore no applicable laws pertaining to “offshore” aquaculture. Regulating a …
Integrative Highway Rights-Of-Way Management To Reduce Stormwater Run-Off And Enhance Habitat, Madeline M. Showers, Robin M. Rotman
Integrative Highway Rights-Of-Way Management To Reduce Stormwater Run-Off And Enhance Habitat, Madeline M. Showers, Robin M. Rotman
Faculty Publications
Nature-based management along highway rights-of-way (ROW) has been a focus in several states to benefit pollinators through supporting diverse and native vegetative communities. There is the potential to enhance the ecological benefits of this practice by integrating stormwater management into restoration plans and incorporating other complex, multidisciplinary factors. Historically, lack of technical assistance and limited resources has led managers to use unsustainable roadside practices that reduce the potential ecological services of the ROW; however, integrative management can aid in the prioritization of management efforts and link objectives of various resource agencies. In this literature review, we address the ecological impacts …
Identifying Ordinal Categories For The Water Insecurity Experiences Scales, Edward A. Frongillo Jr., Hilary J. Bethancourt, Joshua D. Miller, Sera L. Young, The Household Water Insecurity Experiences Scales (Hwise)-Research Coordination Network (Rcn)
Identifying Ordinal Categories For The Water Insecurity Experiences Scales, Edward A. Frongillo Jr., Hilary J. Bethancourt, Joshua D. Miller, Sera L. Young, The Household Water Insecurity Experiences Scales (Hwise)-Research Coordination Network (Rcn)
Faculty Publications
The Household Water Insecurity Experiences (HWISE) and Individual Water Insecurity Experiences (IWISE) Scales are globally suitable tools for comparably measuring water insecurity experiences among households and adults, respectively. The potential range for HWISE and IWISE scores is 0–36. When the WISE Scales were first published, scores of 12 and higher were considered indicative of water insecurity, but additional cut-points are needed to provide more nuanced insights. We therefore sought to develop a practical set of cut-points for the WISE Scales using HWISE data from 13 sites across 12 countries (n = 3,293) and nationally representative samples of IWISE data …
Storm-Driven Tree Exposure And Geomorphic Change: Predicting The Distribution Of Preserved Late Pleistocene Tree Stumps On The Outer Alabama Continental Shelf, Kelli L. Moran, Kehui Xu, Jeffrey Obelcz, Kristine L. Delong, Kendall Fontenot, Carl A. Reese, Grant L. Harley, Douglas Jones, Alicia Caporaso
Storm-Driven Tree Exposure And Geomorphic Change: Predicting The Distribution Of Preserved Late Pleistocene Tree Stumps On The Outer Alabama Continental Shelf, Kelli L. Moran, Kehui Xu, Jeffrey Obelcz, Kristine L. Delong, Kendall Fontenot, Carl A. Reese, Grant L. Harley, Douglas Jones, Alicia Caporaso
Faculty Publications
The Alabama Underwater or Drowned Forest is a well-preserved Late Pleistocene (dated to 72–56 ± 8 ka, 2σ) terrestrial landform on the northern Gulf of Mexico continental shelf that provides geomorphic and ecosystem information rarely preserved during the glacial intervals. Stumps of bald cypress (Taxodium distichum (L.) Rich.) trees were exposed in ∼18 m of water following Hurricane Ivan in 2004. This research investigates geomorphic changes to the Mississippi-Alabama-Florida (MAFLA) sand sheet, which presents as shore-oblique Holocene sand ridges, and the exposure and burial of tree stumps following the passage of Hurricane Sally in 2020 using repeat sidescan and bathymetric …
Threshold Changes In Winter Temperature And Precipitation Drive Threshold Responses Across Nine Global Climate Zones And Associated Biomes, Alexandra R. Contosta, Kyle A. Arndt, Helen M. Baulch, Nora J. Casson, Adrian Harpold, Toni Lyn Morelli, Alexej P.K. Sirén
Threshold Changes In Winter Temperature And Precipitation Drive Threshold Responses Across Nine Global Climate Zones And Associated Biomes, Alexandra R. Contosta, Kyle A. Arndt, Helen M. Baulch, Nora J. Casson, Adrian Harpold, Toni Lyn Morelli, Alexej P.K. Sirén
Faculty Publications
Globally, winter temperatures are rising, and snowpack is shrinking or disappearing entirely. Despite previous research and published literature reviews, it remains unknown whether biomes across the globe will cross important thresholds in winter temperature and precipitation that will lead to significant ecological changes. Here, we combine the widely used Köppen–Geiger climate classification system with worst-case-scenario projected changes in global monthly temperature and precipitation to illustrate how multiple climatic zones across Earth may experience shifting winter conditions by the end of this century. We then examine how these shifts may affect ecosystems within corresponding biomes. Our analysis demonstrates potential widespread losses …
Coastal Wetlands In The Anthropocene, John Day, Edward Anthony, Robert Costanza, Douglas Edmonds, Joel Gunn, Charles Hopkinson, Michael E. Mann, James Morris, Michael Osland, Tracy Quirk, Andre Rovai, John Rybczyk, Thomas Spencer, Jessica Stephens, Jaia Syvitski, Robert Twilley, Jenneke Visser, John R. White
Coastal Wetlands In The Anthropocene, John Day, Edward Anthony, Robert Costanza, Douglas Edmonds, Joel Gunn, Charles Hopkinson, Michael E. Mann, James Morris, Michael Osland, Tracy Quirk, Andre Rovai, John Rybczyk, Thomas Spencer, Jessica Stephens, Jaia Syvitski, Robert Twilley, Jenneke Visser, John R. White
Faculty Publications
We review the functioning and sustainability of coastal marshes and mangroves. Urbanized humans have a 7,000-year-old enduring relationship to coastal wetlands. Wetlands include marshes, salt flats, and saline and freshwater forests. Coastal wetlands occur in all climate zones but are most abundant in deltas. Mangroves are tropical, whereas marshes occur from tropical to boreal areas. Quantification of coastal wetland areas has advanced in recent years but is still insufficiently accurate. Climate change and sea-level rise are predicted to lead to significant wetland losses and other impacts on coastal wetlands and the humans associated with them. Landward migration and coastal retreat …
Insurance Coverage And Flood Exposure In The Gulf Of Mexico: Scale, Social Vulnerability, Urban Form, And Risk Measures, Anissa Hyde, Robert Habans, Mariam Valladares-Castellanos, Thomas Douthat
Insurance Coverage And Flood Exposure In The Gulf Of Mexico: Scale, Social Vulnerability, Urban Form, And Risk Measures, Anissa Hyde, Robert Habans, Mariam Valladares-Castellanos, Thomas Douthat
Faculty Publications
Increasing flood losses in the Gulf of Mexico related to development patterns and climate hazards pose serious threats to resilience and insurability. The purpose of this study is to understand how scale, social vulnerability, risk, and urban form relate to National Flood Insurance Program (NFIP) policy coverage and flood exposure. Our multilevel models identify that flooding is significantly clustered by region and counties, especially shoreline counties. Our measures of risk suggest that the Federal Emergency Management Agency (FEMA) special flood hazard area (SFHA) underestimates risk and exposure when compared with the Flood Factor and that there is some compensation in …
Spatiotemporal Climatology Of Georgia Tropical Cyclones And Associated Rainfall, Reilly Corkran, Jill Trepanier, Vincent Brown
Spatiotemporal Climatology Of Georgia Tropical Cyclones And Associated Rainfall, Reilly Corkran, Jill Trepanier, Vincent Brown
Faculty Publications
Tropical cyclones (TCs), often characterized by high wind speeds and heavy rainfall, cause widespread devastation, affecting millions of people and leading to economic losses worldwide. TC-specific research in Georgia is scarce, likely due to the minimal geographical extent of its coast and the infrequency of direct landfalls. Research on Georgia TCs does not account for storms that make landfall in other southeastern states (e.g., Florida) and continue north, northeast, or northwest into Georgia. This study used the North Atlantic Basin hurricane database (HURDAT2) to quantify the spatiotemporal patterns of direct and indirect landfalling of Georgia tropical cyclones (>16 ms−1) …
Scene Classification Of Remote Sensing Image Based On Multi-Path Reconfigurable Neural Network, Wenyi Hu, Chunjie Lan, Tian Chen, Shan Liu, Lirong Yin, Lei Wang
Scene Classification Of Remote Sensing Image Based On Multi-Path Reconfigurable Neural Network, Wenyi Hu, Chunjie Lan, Tian Chen, Shan Liu, Lirong Yin, Lei Wang
Faculty Publications
Land image recognition and classification and land environment detection are important research fields in remote sensing applications. Because of the diversity and complexity of different tasks of land environment recognition and classification, it is difficult for researchers to use a single model to achieve the best performance in scene classification of multiple remote sensing land images. Therefore, to determine which model is the best for the current recognition classification tasks, it is often necessary to select and experiment with many different models. However, finding the optimal model is accompanied by an increase in trial-and-error costs and is a waste of …
Conducting Structure-From-Motion (Sfm) Modeling Of Freshwater Environments Using Unpiloted Aerial Systems (Uas): Challenges And Lessons Learned, Benjamin T. Fraser, Christine L. Bunyon, Russell G. Congalton
Conducting Structure-From-Motion (Sfm) Modeling Of Freshwater Environments Using Unpiloted Aerial Systems (Uas): Challenges And Lessons Learned, Benjamin T. Fraser, Christine L. Bunyon, Russell G. Congalton
Faculty Publications
The pairing of Unpiloted Aerial Systems (UAS) and Structure from Motion (SfM) has provided new capabilities for modeling freshwater environments. Applications of UAS-SfM range from water quality monitoring to the mapping of aquatic vegetation. The models produced provide users with the ability to analyze features at ultra-high-resolutions and across scales not easily achieved through in situ sampling. Despite the demonstrated benefits of UAS-SfM in freshwater and other natural resource disciplines, there remain fundamental technical challenges in the modeling of environments with homogenous surfaces (e.g., water). In this research, the effectiveness of several image collection and processing approaches for the modelling …