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2024

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Articles 931 - 960 of 1002

Full-Text Articles in Geography

Young Romans: Status, Dress, And Gender, Mary Harlow, Lena Larsson Lovén Jan 2024

Young Romans: Status, Dress, And Gender, Mary Harlow, Lena Larsson Lovén

Textile Crossroads: Exploring European Clothing, Identity, and Culture across Millennia

The demographics of the Roman world suggest that it was a world full of children. Demographers argue that in order simply to maintain population levels in a period where life expectancy was very short by modern standards, and infant mortality high, a woman should, on average, have six children, on the assumption that not all would live to adulthood. Despite much research in the last fifty years, children still remain partly invisible in the Roman world. This is primarily because they leave little evidence produced by themselves and are seen through the prism of adult eyes. Inevitably, given the nature …


Narrative And Material Tools Of Resistance: Mobilizing Textile Crafts, Heritage, And Fashion In The Context Of The Invasion Of Ukraine (2022–2023), Magali-An Berthon, Sophia Hayda, Tetiana Krupa, Yuliia Lazorenko, Marie-Louise Nosch Jan 2024

Narrative And Material Tools Of Resistance: Mobilizing Textile Crafts, Heritage, And Fashion In The Context Of The Invasion Of Ukraine (2022–2023), Magali-An Berthon, Sophia Hayda, Tetiana Krupa, Yuliia Lazorenko, Marie-Louise Nosch

Textile Crossroads: Exploring European Clothing, Identity, and Culture across Millennia

In 2022–2024, textile and fashion scholars came together to write an anthology sharing a new vision of European history as seen through textiles, in the COST Action EuroWeb. During this period, the continent was still dealing with the consequences of the COVID-19 pandemic and was then faced with Russia’s full-scale invasion of Ukraine in February 2022. Contemporary European history will be markedly defined by the ongoing war in Ukraine. One remarkable aspect of this conflict is the way textiles and dress appear daily in a variety of media outlets, mobilized as visual and semiotic means to communicate issues of war …


A Sensory Perspective On High-Ranked Women’S Dress In The 8th To 4th Century Bc In The Mediterranean And Central Europe, Karina Grömer, Susanna Harris, Audrey Gouy, Cecilie Brøns Jan 2024

A Sensory Perspective On High-Ranked Women’S Dress In The 8th To 4th Century Bc In The Mediterranean And Central Europe, Karina Grömer, Susanna Harris, Audrey Gouy, Cecilie Brøns

Textile Crossroads: Exploring European Clothing, Identity, and Culture across Millennia

In the late 20th century, the study of western science was dominated by a philosophical approach to evidence as text and meaning. In archaeology, material culture was treated like text, to be read through systems of signs, symbols, and indices put together in syntax. For studies of dress, this was influential in understanding dress as a cognitive system compiled to create identities and meaning. In this approach, textiles, fastenings, hairstyles, and gestures are presented as signs and symbols used to form a statement about identity, to be read by others. There was a focus on the visuality of dress and …


An Examination Of Homo Naledi Early Juveniles Recovered From The Rising Star Cave System, South Africa, Juliet K. Brophy, Debra R. Bolter, Marina Elliott, John Hawks, Lee R. Berger Jan 2024

An Examination Of Homo Naledi Early Juveniles Recovered From The Rising Star Cave System, South Africa, Juliet K. Brophy, Debra R. Bolter, Marina Elliott, John Hawks, Lee R. Berger

Faculty Publications

Background: Six Homo naledi early juveniles were recovered from U.W. 101 (Dinaledi Chamber), U.W. 102 (Lesedi Chamber), and U.W. 110 in the Rising Star cave system. Aim: This paper develops the information for the H. naledi early juvenile life stage, as defined by a combination of deciduous and permanent dentition, and the eruption of the first permanent molar. Subjects and methods: The growing number of young individuals recovered from the Rising Star cave system allows us to gain a better understanding of their variation, or lack thereof, and provides a basis to estimate broad ranges for age at death of …


Human–Environment Interactions At Ta’Ab Nuk Na, A Submerged Maya Salt Works Site In Belize, Cheryl M. Foster, Heather Mckillop, E. Cory Sills Jan 2024

Human–Environment Interactions At Ta’Ab Nuk Na, A Submerged Maya Salt Works Site In Belize, Cheryl M. Foster, Heather Mckillop, E. Cory Sills

Faculty Publications

Sea-level rise and settlement are investigated at Ta’ab Nuk Na, an ancient Maya salt works in Belize, by examining samples from wooden posts and marine sediment. The samples included Post 145 of Building B and the Nunavut beam, along with marine sediment columns cut from beside both wooden posts. The sediment columns were sampled at 2 cm intervals. Loss-on ignition confirmed the presence of organic material. Identifying the organic content involved removing nonorganic material from the sediment and sorting the organic material under magnification. This procedure established that most of the organic material was red mangrove (Rhizophora mangle). Red mangroves …


Flooded Mangrove Landscapes Hide Ancient Maya Coastal Sites In Belize, Heather I. Mckillop Jan 2024

Flooded Mangrove Landscapes Hide Ancient Maya Coastal Sites In Belize, Heather I. Mckillop

Faculty Publications

Evidence of ancient Maya exploitation of salt, other marine resources, settlement, and sea trade is hidden in flooded mangrove landscapes on the cays, mainland, and in shallow offshore locations on the south coast of Belize. This article includes a discussion of the coastal economy from the Middle Preclassic through the Postclassic periods (600 B.C.–A.D. 1500). Data from sites discovered and excavated since 1982 in the coastal area of the Port Honduras and Paynes Creek National Park support a model of coastal reliance on marine resources and tree crops. The need for a regular supply of coastal salt to inland cities …


Dpal-Bert: A Faster And Lighter Question Answering Model, Lirong Yin, Lei Wang, Zhuohang Cai, Siyu Lu, Ruiyang Wang, Ahmed Alsanad, Salman A. Alqahtani, Xiaobing Chen, Zhengtong Yin, Xiaolu Li, Wenfeng Zheng Jan 2024

Dpal-Bert: A Faster And Lighter Question Answering Model, Lirong Yin, Lei Wang, Zhuohang Cai, Siyu Lu, Ruiyang Wang, Ahmed Alsanad, Salman A. Alqahtani, Xiaobing Chen, Zhengtong Yin, Xiaolu Li, Wenfeng Zheng

Faculty Publications

Recent advancements in natural language processing have given rise to numerous pre-training language models in question-answering systems. However, with the constant evolution of algorithms, data, and computing power, the increasing size and complexity of these models have led to increased training costs and reduced efficiency. This study aims to minimize the inference time of such models while maintaining computational performance. It also proposes a novel Distillation model for PAL-BERT (DPAL-BERT), specifically, employs knowledge distillation, using the PAL-BERT model as the teacher model to train two student models: DPAL-BERT-Bi and DPAL-BERT-C. This research enhances the dataset through techniques such as masking, …


Convolution-Transformer For Image Feature Extraction, Lirong Yin, Lei Wang, Siyu Lu, Ruiyang Wang, Youshuai Yang, Bo Yang, Shan Liu, Ahmed Alsanad, Salman A. Alqahtani, Zhengtong Yin, Xiaolu Li, Xiaobing Chen, Wenfeng Zheng Jan 2024

Convolution-Transformer For Image Feature Extraction, Lirong Yin, Lei Wang, Siyu Lu, Ruiyang Wang, Youshuai Yang, Bo Yang, Shan Liu, Ahmed Alsanad, Salman A. Alqahtani, Zhengtong Yin, Xiaolu Li, Xiaobing Chen, Wenfeng Zheng

Faculty Publications

This study addresses the limitations of Transformer models in image feature extraction, particularly their lack of inductive bias for visual structures. Compared to Convolutional Neural Networks (CNNs), the Transformers are more sensitive to different hyperparameters of optimizers, which leads to a lack of stability and slow convergence. To tackle these challenges, we propose the Convolution-based Efficient Transformer Image Feature Extraction Network (CEFormer) as an enhancement of the Transformer architecture. Our model incorporates E-Attention, depthwise separable convolution, and dilated convolution to introduce crucial inductive biases, such as translation invariance, locality, and scale invariance, into the Transformer framework. Additionally, we implement a …


Afbnet: A Lightweight Adaptive Feature Fusion Module For Super-Resolution Algorithms, Lirong Yin, Lei Wang, Siyu Lu, Ruiyang Wang, Haitao Ren, Ahmed Alsanad, Salman A. Alqahtani, Zhengtong Yin, Xiaolu Li, Wenfeng Zheng Jan 2024

Afbnet: A Lightweight Adaptive Feature Fusion Module For Super-Resolution Algorithms, Lirong Yin, Lei Wang, Siyu Lu, Ruiyang Wang, Haitao Ren, Ahmed Alsanad, Salman A. Alqahtani, Zhengtong Yin, Xiaolu Li, Wenfeng Zheng

Faculty Publications

At present, super-resolution algorithms are employed to tackle the challenge of low image resolution, but it is difficult to extract differentiated feature details based on various inputs, resulting in poor generalization ability. Given this situation, this study first analyzes the features of some feature extraction modules of the current super-resolution algorithm and then proposes an adaptive feature fusion block (AFB) for feature extraction. This module mainly comprises dynamic convolution, attention mechanism, and pixel-based gating mechanism. Combined with dynamic convolution with scale information, the network can extract more differentiated feature information. The introduction of a channel spatial attention mechanism combined with …


The Monadnock Volume 63, 2024, Clark University Geographical Society Jan 2024

The Monadnock Volume 63, 2024, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 63 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).


การพัฒนาแบบจำลองสารสนเทศอาคาร (Bim) ด้วยเครื่องสแกนเลเซอร์สามมิติเพื่อการอนุรักษ์โบราณสถานของศาลเจ้าโรงเกือก : กรณีศึกษาการประเมินผลกระทบจากอุทกภัย, ปริฉัตร กานต์จารุรัตน์ Jan 2024

การพัฒนาแบบจำลองสารสนเทศอาคาร (Bim) ด้วยเครื่องสแกนเลเซอร์สามมิติเพื่อการอนุรักษ์โบราณสถานของศาลเจ้าโรงเกือก : กรณีศึกษาการประเมินผลกระทบจากอุทกภัย, ปริฉัตร กานต์จารุรัตน์

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้ศึกษาการพัฒนาแบบจำลองสารสนเทศอาคารด้วยเครื่องสแกนเลเซอร์สามมิติเพื่อการอนุรักษ์โบราณสถานของศาลเจ้าโรงเกือก กรณีศึกษาการประเมินผลกระทบจากอุทกภัย เนื่องจากปัจจุบันศาลเจ้าโรงเกือก แขวงตลาดน้อย เขตสัมพันธวงศ์ กรุงเทพมหานคร กำลังประสบปัญหาการทรุดโทรมและมีปัญหาน้ำท่วมขังอยู่บ่อยครั้ง ผู้วิจัยจึงจัดทำแบบจำลองอาคารสารสนเทศ โดยการเก็บข้อมูลจากเครื่องสแกนเลเซอร์สามมิติข้อมูลที่ได้จะอยู่ในรูปแบบจุดพิกัดสามมิติ ผลลัพธ์ที่ได้ข้อมูลมีค่าความถูกต้องเท่ากับ 2.9 มิลลิเมตร ซึ่งอยู่ในระดับความถูกต้องที่เชื่อถือได้ตามเกณฑ์งานสำรวจชั้น 3 ตามมาตรฐานของ FGCC1989 จากนั้นผู้วิจัยจึงนำข้อมูลมาพัฒนาเป็นแบบจำลองสารสนเทศอาคารโดยมีมาตรฐานรายละเอียดของแบบจำลองที่ระดับ 200 ซึ่งสามารถแสดงโครงสร้างทั่วไปของอาคาร เพื่อนำมาวิเคราะห์ร่วมกับข้อมูลแบบจำลองความสูงเชิงเลขและข้อมูลน้ำท่วมขังจากสำนักระบายน้ำกรุงเทพมหานคร ซึ่งแบ่งเป็น 5 ระดับ คือ 0.1 0.3 0.5 0.8 และ 1 เมตร โดยอ้างอิงจากข้อมูลหมุดวงรอบที่มีค่าระดับความสูงต่ำสุดในพื้นที่ศึกษาเพื่อใช้ในการประมาณค่าความเสียหายที่เกิดขึ้น ผลการศึกษาพบว่าที่ระดับ 0.1 เมตร พื้นที่เสียหายมีขนาด 197.79 ตร.ม. ระดับ 0.3 เมตร พื้นที่เสียหายมีขนาด 477.43 ตร.ม และตั้งแต่ระดับน้ำท่วมขัง 0.5 เมตรขึ้นไปถึง 1 เมตร พื้นที่เสียหายเท่ากันรวมพื้นที่ประมาณ 987.33 ตร.ม. ค่าความเสียหายที่เกิดขึ้นที่ระดับ 0.1 เมตร เท่ากับ 44,502.75 บาท ที่ระดับ 0.3 และ 0.5 เมตร เพิ่มขึ้นจากระดับ 0.1 เมตร ประมาณร้อยละ 141.43 และร้อยละ 732.58 ตามลำดับ จากนั้นความเสียหายจะคงที่จนถึงที่ระดับน้ำท่วม 0.8 เมตร และเพิ่มขึ้นอีกประมาณร้อยละ 802.78 ที่ระดับ 1 เมตร เนื่องจากการประมาณราคาของงานระบบไฟฟ้าที่เพิ่มเข้ามา โดยข้อมูลประมาณค่าความเสียหายที่เกิดขึ้น สามารถนำไปวางแผนเพื่อปรับปรุง ก่อสร้างหรือซ่อมแซมให้กับเจ้าหน้าที่ผู้ดูแลหรืองานอื่นๆที่เกี่ยวข้องได้ รวมถึงการวางแผนการป้องกันเพื่อการอนุรักษ์โบราณสถานได้ดียิ่งขึ้น


Crisis, Genre, And The Informatic Infrastructure Of The Critical Path Aids Project In Philadelphia's Early Epidemic, Sid Feinberg Jan 2024

Crisis, Genre, And The Informatic Infrastructure Of The Critical Path Aids Project In Philadelphia's Early Epidemic, Sid Feinberg

Theses and Dissertations--Geography

The Critical Path AIDS Project was a grassroots information network that distributed AIDS-related information related to biomedicine, social services, and politics. I explore the ways the project made sense of the shattering social service and care landscapes they emerged within and responded to. I situate Critical Path’s work within Philadelphia’s splintering care infrastructures and the experience of crisis Lauren Berlant argues structures perception of neoliberal life. I focus on the ways that Critical Path’s articulation of crisis and spatial re-orientation pull on the modernist design work of Buckminster Fuller. Fuller’s design work formed a framework through which the project constructed …


Beauty And The Anthropocene: On The Emancipatory Potential Of Experiences Of Beautiful Places In The Natural World, Matthew John Jan 2024

Beauty And The Anthropocene: On The Emancipatory Potential Of Experiences Of Beautiful Places In The Natural World, Matthew John

Theses and Dissertations--Geography

This dissertation investigates the proposition that beauty—specifically, experiences of beautiful places in the natural world—can contribute to the emancipation of modern persons (and thereby developed societies) from instrumental rationality, which is theorized as a major driver of contemporary socioecological crises of the Anthropocene. Buber’s concept of the I–Thou relation provides a framework for conceptualizing ideal non-instrumental relations. The project’s methodology, rooted in post-phenomenology, consisted of semi-structured remote interviews and four follow-up focus groups with 35 then current and recently former residents of Juneau, Alaska. Taken together, data confirm that experiences of beautiful places in the natural world can and do …


A Geography Of Transgender Belonging In Louisville, Kentucky, Lj Mcallister Jan 2024

A Geography Of Transgender Belonging In Louisville, Kentucky, Lj Mcallister

Theses and Dissertations--Geography

Louisville, Kentucky is home to a surprisingly robust – and complex – transgender community. This study uses qualitative data from interviews, collaborative maps, and archival research to analyze a geography of belonging for transgender residents in the city. It discusses how the twelve participants negotiate their relationships with the conservative, “red” state of Kentucky, as well as the geographical decision-making they use to navigate Louisville’s many neighborhoods. Ultimately, this thesis draws attention to the ways in which prejudice shapes the landscape of belonging for transgender life in Derby City.


Thirty Years Of ‘Emergency’ Food Aid In The Us And Canada: Findings From Comparative Research To Inform Uk Efforts To Tackle Food Poverty And The Need For Foodbanks, Charlotte Spring Jan 2024

Thirty Years Of ‘Emergency’ Food Aid In The Us And Canada: Findings From Comparative Research To Inform Uk Efforts To Tackle Food Poverty And The Need For Foodbanks, Charlotte Spring

Geography and Environmental Studies Faculty Publications

Research observed how food providers in the United States and Canada have made changes during the decades of neoliberal policymaking that have seen foodbanking expand across North America and beyond. These changes, in part, reflect responses to critiques of foodbanking as an inadequate solution to food insecurity. Food charities have variously attempted to improve provision through healthier procurement, choice-based distribution models, diversified programming, and advocacy for policy solutions. Better foodbanking, however, does not negate the influence of corporate donors on food charities’ capacity to foster hunger-preventative change, such as the employment practices of those same donors. Meanwhile, grassroots organisers …


Net Zero And Settler Futurity, Jesse Goldstein Jan 2024

Net Zero And Settler Futurity, Jesse Goldstein

Sociology Publications

Net Zero ideology promises that current and ongoing emissions can be partially offset by ‘negative emissions’ strategies such as carbon capture and sequestration, allowing carbon intensive firms to narrate themselves as agents that are solving – not causing – the climate crisis. This represents a shift in liberal and corporate environmentalism away from both denial and delay, towards a new strategy acknowledging the need to end fossil fuel use while urgently deferring transformations to a future made possible by not-yet developed technological innovations. This paper argues that a through-line of settler futurity provides affective infrastructure potent enough to transect opposing …


Quantifying Structural Vegetation Change On Arctic Tundra: A Multi-Decadal Study Integrating Remotely Sensed Imagery And Traditional Field Measurements, Anna M. Moser Jan 2024

Quantifying Structural Vegetation Change On Arctic Tundra: A Multi-Decadal Study Integrating Remotely Sensed Imagery And Traditional Field Measurements, Anna M. Moser

Graduate Student Theses, Dissertations, & Professional Papers

Arctic regions have experienced an amplified rate of climate warming in recent decades, contributing to well-documented increases in tundra vegetation productivity. Satellite remote sensing has historically played a crucial role in detecting and quantifying trends at regional and biome scales; however, coarse resolution imagery has proven insufficient for capturing fine-scale variability in vegetation response. Considering the spatial heterogeneity of tundra vegetation, high resolution, plot-scale remote sensing observations are necessary. This study couples traditional field measurements with high-resolution unmanned aerial vehicle (UAV) imagery and plane-based aerial photos to quantify changes in vegetation on the North Slope of Alaska over a 28-year …


Mind, Body, And Farmland: The Agricultural Revolution Of Regenerative Agriculture And The Social Construction Of Sustainability., Amanda C. Pennett Jan 2024

Mind, Body, And Farmland: The Agricultural Revolution Of Regenerative Agriculture And The Social Construction Of Sustainability., Amanda C. Pennett

Honors Theses

An agricultural revolution has begun to take place in light of the growing awareness of environmental issues that impact crop production on farms. In the beginning of the fall of 2022, I began to study the culture of regenerative agriculture in rural Pennsylvania using anthropological methods, including participant-observation and semi-structured interviews, working alongside local farmers. I was also interested in uncovering the flaws in our current industrial agricultural system and how farming could be reimagined to benefit farmers’ mental health, soils, and ecosystems while privileging the voices of those farmers committed to regenerative farming. The ongoing evolution of regenerative farming …


Do Americans Support More Housing?, Michael Lewyn Jan 2024

Do Americans Support More Housing?, Michael Lewyn

Scholarly Works

An analysis of opinion poll data on housing issues. The article finds that Americans generally believe that their community needs more housing of all types, but are more closely divided about whether such housing should be in their own neighborhoods. The article further finds that members of minority groups, lower-income Americans, and younger Americans are more pro-housing than older, affluent whites.


Late Holocene Fire History Reconstruction Of Beaver Lake In The Northwest Lowlands Of The Olympic Peninsula, Grace Mckenney Jan 2024

Late Holocene Fire History Reconstruction Of Beaver Lake In The Northwest Lowlands Of The Olympic Peninsula, Grace Mckenney

All Master's Theses

Fire is an essential component of the landscapes and forests of the Pacific Northwest, including the temperate rainforests of the Olympic Peninsula. Previous fire history reconstructions from the peninsula show that fire return intervals varied throughout the postglacial period, primarily in response to climatic changes and corresponding shifts in vegetation. However, much less is known about the fire history of the low-elevation forests of the Olympic Peninsula and the role of cultural fire regimes in these environments. The purpose of this study was to reconstruct the paleoenvironmental history of a low-elevation study site, Beaver Lake, located in the northwestern part …


Fire-Vegetation-Climate Interactions: An 8,000- Year Long Paleoecological Reconstruction From Round Lake, Idaho (Usa), Audrey Scott Jan 2024

Fire-Vegetation-Climate Interactions: An 8,000- Year Long Paleoecological Reconstruction From Round Lake, Idaho (Usa), Audrey Scott

All Master's Theses

The Idaho Transportation Department recently contracted archeologists from Eastern Washington University (EWU) to assess potential impacts to cultural resources near McArthur Lake in Bonner County, Idaho, as the result of rerouting U.S. Route 95. The goal of this research is to aid EWU archeologists in their interpretation of the artifacts recovered from the McArthur Lake site by providing them with a local paleoecological reconstruction. Lake sediment-based paleoecological reconstructions provide detailed information on fire history and vegetation change through time and indicate how landscapes responded to past climate variability and human activities. In summer 2022, a sediment core was extracted from …


The Last Valley: A Fictional Story For Environment, Hikmat Yar, Nida Ayaz Jan 2024

The Last Valley: A Fictional Story For Environment, Hikmat Yar, Nida Ayaz

Books

This fictional book is an outcome of the Climate Action Fellowship carried out by the Aga Khan University Institute for Educational Development (AKU-IED) and funded by the U.S. Mission in Pakistan.


Urban Streetscape Changes In Portland, Oregon: A Longitudinal Virtual Audit, Tomoya Hanibuchi, David Banis, Hunter Shobe, Tomoki Nakaya, Shohei Nagata Jan 2024

Urban Streetscape Changes In Portland, Oregon: A Longitudinal Virtual Audit, Tomoya Hanibuchi, David Banis, Hunter Shobe, Tomoki Nakaya, Shohei Nagata

Geography Faculty Publications and Presentations

Streetscape imagery has considerable potential for observing urban change. The literature lacks sufficient longitudinal studies, however, on urban change considering human perception and activities. We conducted a longitudinal virtual audit to observe the change in urban liveliness, human activities, and built environment by examining streetscape imagery taken in the late 2000s and the late 2010s in Portland, Oregon. Eleven untrained crowd workers were recruited to provide liveliness ratings of 24,242 streetscape images for both periods. Tabulation, mapping, and multilevel regression analyses were conducted to observe the distribution, changes in liveliness, and the factors affecting these changes. The results confirmed that …


Foodways: An Ethnographic Analysis Of Cwu International Students’ Perception Of The Role Of Culturally Relevant Food In Their Sense Of Belonging, Joy Ihuka Jan 2024

Foodways: An Ethnographic Analysis Of Cwu International Students’ Perception Of The Role Of Culturally Relevant Food In Their Sense Of Belonging, Joy Ihuka

All Master's Theses

International students face unique challenges adjusting to new academic environments, including developing a sense of homesickness and lack of belonging. Studies have shown that consuming culturally relevant food helps international students relieve homesickness, fostering a sense of belonging. Curiously, nonetheless, literature on student belonging rarely focuses on food. Within this gap, this thesis explores the significance of culturally relevant food in fostering a sense of belonging among international students at Central Washington University. Using ethnographic interviews, this research examines how culturally relevant food (including how food is prepared) or lack thereof may influence international students’ perceptions of belonging. This study …


Growing Up Sustainable? Politics Of Race And Youth In Urbanplan, Copenhagen, Max Ritts, Rebecca Rutt Jan 2024

Growing Up Sustainable? Politics Of Race And Youth In Urbanplan, Copenhagen, Max Ritts, Rebecca Rutt

Geography

This paper considers how racialized youth in Denmark negotiate sustainability amid contexts marked by intersecting forms of economic restructuring, progressive neoliberalism, white ethno-nationalism, and green urban planning. Urbanplan is a low-income, notoriously “troubled” Copenhagen neighborhood where we conducted fieldwork for 7 months (2019-2020) with fifteen male youth, aged 17-21. Using ethnography, policy reviews, and interviews with city social workers, we explore how intimate experiences of nature, group-identity, and place attachment here relate to and depart from the structural forces actively reshaping the neighborhood. Our analysis combines Cindi Katz's intersectional political economy approach with recent work on green gentrification, Critical Utopian …


Methods To Compare Sites Concerning A Category’S Change During Various Time Intervals, Thomas Mumuni Bilintoh, Robert Gilmore Pontius, Aiyin Zhang Jan 2024

Methods To Compare Sites Concerning A Category’S Change During Various Time Intervals, Thomas Mumuni Bilintoh, Robert Gilmore Pontius, Aiyin Zhang

Geography

This paper presents new methods to analyze a category’s change through a time series of maps, even when the time intervals have inconsistent durations. The methods include an option to facilitate comparison among sites by expressing results as an annual percentage of each site’s unified size. A site’s unified size is the union of where the category exists at any of the site’s time points. The methods also specify gross losses, gross gains, eight trajectories, and three components: Quantity, Exchange, and Alternation. The illustrative application compares maps of the marsh category for three Long-Term Ecological Research sites: Plum Island Ecosystems …


Agricultural Groundcover Update December 2023, Justin Laycock Jan 2024

Agricultural Groundcover Update December 2023, Justin Laycock

Natural resources published reports

Summary

  • About 96% of the grainbelt had adequate vegetative groundcover (more than 50%) to prevent wind erosion in December 2023.
  • In the northern half of the grainbelt, a larger-than-average area has 51–60% groundcover, which is expected to decrease to below 50% over the summer.
  • Just under 4% of the grainbelt (553,000 ha) had less than 50% groundcover, which is inadequate to prevent wind erosion. West Midlands Ag Soil Zone had the highest risk of wind erosion and 11.4% of this farmland had inadequate groundcover.
  • Less than 0.5% of the grainbelt had a high to very high risk of wind erosion …


Widespread Expansion Of Salt Marsh Pools Observed On Maine Marshes Since 2009 (Data Files), Katelyn Dewater, William Kochtitzky, Ruth Ellis, Paige-Marie Merrill Jan 2024

Widespread Expansion Of Salt Marsh Pools Observed On Maine Marshes Since 2009 (Data Files), Katelyn Dewater, William Kochtitzky, Ruth Ellis, Paige-Marie Merrill

Geographic Information Systems Data Projects

Salt marshes contain standing water, which we refer to here as pools. We manually digitized salt marsh pools on 12 salt marshes in Maine (given as Name and corresponding ID number (see ID in Attributes)) in 2009 and 2021: Scarborough (1), Webhannet (2), Spurwink (3), Marshall Point (4), York River (5), Ogunquit (6), Brave Boat Harbor (7), Cousins River (8), Biddeford Pool (9), Little River (10), Goosefare Brook (11), Gooch’s Beach (12). Marsh extents were delineated with the Maine Natural Areas Program Current Tidal Marshes layer. All pools were digitized at a scale of 1:400 to 1:1000. Features were digitized …


Aboveground Biomass Density Estimation Using Deep Learning: Insight From Neon Ground-Truth Data And Simulated Gedi Waveform, Ashish Mahaur Jan 2024

Aboveground Biomass Density Estimation Using Deep Learning: Insight From Neon Ground-Truth Data And Simulated Gedi Waveform, Ashish Mahaur

Dissertations, Master's Theses and Master's Reports

Accurately estimating Aboveground Biomass Density (AGBD) is crucial for managing Earth's carbon cycle and informing climate strategies. NASA's GEDI mission advances global forest mapping, but traditional linear models often yield less reliable AGBD estimates. This study enhances AGBD estimation using deep learning models with NEON ground-truth data and simulated GEDI waveforms. We compared 1D CNNs, LSTMs, and pre-trained CNNs to traditional models. The ResNet152 model outperformed linear regression, achieving an R² of 0.68, demonstrating a 17% improvement. Our experiments also demonstrate the importance of large, diverse datasets, particularly for training deep learning models.


Sauntering Spirituality: Walking Through Environmental History In Audio, Jamie E. Hinrichs Jan 2024

Sauntering Spirituality: Walking Through Environmental History In Audio, Jamie E. Hinrichs

Eastern Sierra History Journal

Walking provides pathways into environmental history, and environmental history enriches our walking. Sauntering Spirituality is conceived as an audio documentary series that invites listeners into this intersection of perambulation and the past. Each episode would explore how walking – as “sauntering spirituality” – has shaped the American land ethic.