Filtering by Subject: Geography

Global mercury records from natural archives reveal ecosystem responses to changing atmospheric deposition

Qinqin Chen, Qingru Wu, Yuying Cui, et al.

Published: 2024-05-15
Subjects: Atmospheric Sciences, Environmental Sciences, Geochemistry, Geography, Physical and Environmental Geography

Global ecosystems face mercury contamination, yet long-term data is scarce, hindering understanding of ecosystem responses to atmospheric Hg input changes and policy evaluation. To address this gap, this study compiled a global mercury accumulation flux database using 221 cores from peat, lake, ice, and marine deposits. From 1700 to 2012, global averaged fluxes in peat, lake, ice, and marine [...]

GeoAI and the Future of Spatial Analytics

Wenwen Li, Samantha T. Arundel

Published: 2024-05-01
Subjects: Computer Sciences, Earth Sciences, Environmental Sciences, Environmental Studies, Geography, Library and Information Science, Physical Sciences and Mathematics, Social and Behavioral Sciences

This chapter discusses the challenges of traditional spatial analytical methods in their limited capacity to handle big and messy data, as well as mining unknown or latent patterns. It then introduces a new form of spatial analytics – geospatial artificial intelligence (GeoAI) - and describes the advantages of this new strategy in big data analytics and data-driven discovery. Finally, a [...]

Unified in diversity: Unravelling emerging knowledge on drought impact cascades via participatory modeling

Jan Sodoge, Zora Reckhaus, Christian Kuhlicke, et al.

Published: 2024-04-04
Subjects: Geography

Diverse groups exhibit enhanced capabilities in tackling complex problems compared to individuals. Also, involving diverse stakeholders has been shown to improve the understanding of complex social-ecological systems. Considering this, we investigated how pooling the knowledge of diverse stakeholder crowds can create new, emergent knowledge on cascading drought impacts. We define ‘emergent [...]

Climatic and geological insights on geochemical signatures left in ancient glass

Bongsu Chang, Bum Ki Lee, Jieun Seo, et al.

Published: 2024-02-26
Subjects: Chemistry, Earth Sciences, Geography

Glass artifacts have been the subject of extensive trade as exquisite items of the social elite since ancient times. Vestiges of their production and migration are still visible around the globe. To comprehend the historical narrative of human life encapsulated within them, it is imperative to ascertain their inception, which directly correlates with the identification of raw materials used in [...]

Intertwining volcanoes and society in Chile through arts and interdisciplinary connections

Valentina Acuña, Matías Clunes, Sebastián Riffo, et al.

Published: 2023-11-08
Subjects: Geography, Social and Behavioral Sciences

The separation between nature and society, of concern within social science and interdisciplinary discussions, has generated a division that often characterizes the way communities perceive their environment. The arts have played an important role in demonstrating the entanglement of Earth and society through their ability to frame and shape the dynamics of the Earth across sensations. This has [...]

Large-scale green grabbing for wind and solar PV development in Brazil

Michael Klingler, Nadia Ameli, Jamie Rickman, et al.

Published: 2023-08-22
Subjects: Geographic Information Sciences, Geography, Human Geography, Social and Behavioral Sciences

Large-scale wind and solar photovoltaic (PV) infrastructures are expanding rapidly in Brazil. These projects can exacerbate struggles for land rooted in weak land governance, with negative impacts for traditional populations due to loss of access to common lands. Here, we trace how green grabbing, i.e. the large-scale appropriation and control of (undesignated) public lands, both formally legal [...]

A Web-based Decision Support Framework for Optimizing Road Network Accessibility and Emergency Facility Allocation During Flooding

Yazeed Alabbad, Jerry Mount, Ann Campbell, et al.

Published: 2023-08-03
Subjects: Civil and Environmental Engineering, Engineering, Environmental Studies, Geographic Information Sciences, Geography, Risk Analysis

Transportation systems can be significantly affected by flooding, leading to physical damage and subsequent adverse impacts such as increased travel distance to essential services. Even though flooding is a frequently recurring phenomenon that can affect thousands of people per event, there are limited accessible online tools available for analyzing and visualizing flood risk for supporting [...]

The climate and environmental determinants of domestic water supply change at the Nasia catchment in Northern Ghana

Josephine Tetteh, Dacosta Aboagye, Edmund. I Yamba, et al.

Published: 2023-06-23
Subjects: Geography

The Nasia river serves as the primary source of domestic water supply for over 5000 households in the Nasia catchment. However, the river is currently experiencing water stress conditions, causing an imbalance between the demand for water and the available supply. In this study, we evaluated the impact of climate and environmental factors on changes in domestic water supply in the Nasia [...]

Towards Understanding the Geospatial Skills of ChatGPT: Taking a Geographic Information Systems (GIS) Exam

Peter Mooney, Wencong Cui, Boyuan Guan, et al.

Published: 2023-06-20
Subjects: Earth Sciences, Education, Environmental Studies, Geographic Information Sciences, Geography, Higher Education, Other Geography, Science and Mathematics Education, Spatial Science

This paper examines the performance of ChatGPT, a large language model (LLM), in a geographic information systems (GIS) exam. As LLMs like ChatGPT become increasingly prevalent in various domains, including education, it is important to understand their capabilities and limitations in specialized subject areas such as GIS. Human learning of spatial concepts significantly differs from LLM training [...]

ChatGPT as a mapping assistant: A novel method to enrich maps with generative AI and content derived from street-level photographs

Levente Juhász, Peter Mooney, Hartwig H Hochmair, et al.

Published: 2023-06-06
Subjects: Artificial Intelligence and Robotics, Computer Sciences, Geographic Information Sciences, Geography, Other Computer Sciences, Other Geography, Spatial Science

This paper explores the concept of leveraging generative AI as a mapping assistant for enhancing the efficiency of collaborative mapping. We present results of an experiment that combines multiple sources of volunteered geographic information (VGI) and large language models (LLMs). Three analysts described the content of crowdsourced Mapillary street-level photographs taken along roads in a small [...]

Extreme Rainfall Indices and its Effect on Meher Season Crop Calendar: An Agro-Climatic Zone Based Study

Enyew Azene Meharie, Mintesinot Azene Taye, Melkamu Meseret Alemu, et al.

Published: 2023-03-15
Subjects: Geography

The study analyzed the daily extreme rainfall indices and its consequences on Meher (summer) season cereal crop calendar in the agro-climatic zones (ACZs) of a watershed. Long-term (1981-2019) rainfall data for 50 sample grid points with a spatial resolution of 5 5 km from Climate Hazards Group Infrared Precipitation (CHIRPS) was considered. Focus group discussions were employed to identifying [...]

The Earth4All model of human wellbeing on a finite planet towards 2100

Jorgen Randers, David Collste

Published: 2023-03-03
Subjects: Environmental Studies, Geography

In the following pages, we give a short introduction to a new integrated global assessment model: The Earth4All model of human wellbeing on a finite planet towards the year 2100. The Earth4All (E4A) model has evolved over a fifteen-year period and represents a summary of insights we have gained during all these years (See Appendix 1 for a list of the main publications that form the foundation for [...]

Did hydroclimate conditions contribute to the political dynamics of Majapahit? A preliminary analysis

Sandy Hardian Susanto Herho, Katarina Evelyn Permata Herho, Raden Dwi Susanto

Published: 2023-02-21
Subjects: Atmospheric Sciences, Climate, Earth Sciences, Environmental Studies, Geography, Human Geography, Nature and Society Relations, Physical and Environmental Geography, Physical Sciences and Mathematics, Social and Behavioral Sciences

Majapahit was the largest Hindu-Buddhist empire that ruled the Indonesian archipelago from the late 13th to mid-16th centuries CE. Only now there is still a lot of history surrounding the Majapahit era that has yet to be revealed. One is about how environmental factors influenced the political dynamics at that time. This study tries to discuss the influence of hydroclimate regimes using the Paleo [...]

Towards robust interdisciplinary modeling of global human-environmental dynamics

Carsten Meyer

Published: 2023-02-20
Subjects: Agriculture, Biodiversity, Ecology and Evolutionary Biology, Environmental Studies, Forest Sciences, Geography, Life Sciences, Nature and Society Relations

Real-world environmental problems are typically vast, urgent, and complex. Confronted with such problems, we are often tempted to act fast by pulling together little bits and pieces from different fields and simply adding these to pre-existing models and frameworks. Seldom, though, do we pause long enough to look whether and for how long those larger structures we build can support reliable [...]

Data mining by watching old documentary TV programs to learn about the relationships between people’s lives and the landscape in Sakha in the perestroika era at the end of the 1980s

Shin Nagai, Ayumi Kotani, Yasuyuki Maruya, et al.

Published: 2022-08-14
Subjects: Geography

To accurately evaluate the spatiotemporal variability of ecosystem functions and services, as well as biodiversity, under a rapidly changing climate and shifting anthropogenic activities, it is an important but challenging task to retrieve information about past relationships among society, people’s lives, and the landscape. We watched documentary TV programs broadcast by the Japanese public [...]


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