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Articles 1 - 30 of 51
Full-Text Articles in Physical Sciences and Mathematics
Beavers Beyond Boundaries: Perceptions Of Beaver-Related Restoration, Matthew V. Guziejka
Beavers Beyond Boundaries: Perceptions Of Beaver-Related Restoration, Matthew V. Guziejka
Student Research Symposium
The study "Beavers Beyond Boundaries: Perceptions of Beaver-Related Restoration" conducted by Matt Guziejka and Heejun Chang from the WISE Lab, Department of Geography at Portland State University, delves into the social, cultural, and environmental dimensions of Beaver-Related Restoration (BRR) within the urban setting of the Tualatin River watershed. Utilizing a voluntary survey with 187 participants across three urban watershed sites, the research aimed to analyze community perceptions concerning beavers and their impact on the environment, particularly in relation to their proximity to watercourses. Findings indicate that proximity significantly affects attitudes towards beavers, with those living closer to watercourses demonstrating more …
Investigating Drought Response And Paleoclimate Potential Of A New Network Of White Oak Chronologies In Western Kentucky, Usa, Audrey J. Heichelbech, Maegen L. Rochner, Megan Gibson
Investigating Drought Response And Paleoclimate Potential Of A New Network Of White Oak Chronologies In Western Kentucky, Usa, Audrey J. Heichelbech, Maegen L. Rochner, Megan Gibson
Undergraduate Research Events
In Kentucky, historic and paleo-climate data are limited, and current understanding of long-term climate change in the state relies on instrumental data spanning only 1895-present. Proxy data are necessary to extend the temporal and spatial span of climate information. One potential proxy source for Kentucky is tree ring data, but currently, only four such datasets are publicly available on the International Tree Ring Data Bank (ITRDB). Archaeological and archival timber sources may help to fill in this gap. In the 1940s, Florence Hawley-Ellis, the first woman dendrochronologist, collected samples of white oak (Quercus alba L.) from four counties in western …
The Flow Of Power: Addressing Asymmetric Flood Risk In The Upper Valley, Eric Vr Hryniewicz
The Flow Of Power: Addressing Asymmetric Flood Risk In The Upper Valley, Eric Vr Hryniewicz
Geography Undergraduate Senior Theses
Floods are the most damaging natural disasters in America. Land use change in upland watersheds can increase the probability and severity of floods (Bronstert, Niehoff, & Burger, 2002). When watersheds are divided by political and private property boundaries it leads to a misalignment of incentives in which downstream users lack recourse for upstream land use decisions contributing to flood risk. In this thesis, researchers interrogate the attributes of town officials and towns that determine what motivates town governments to act on flooding and what motivates and enables town officials to collaborate on planning and how do they collaborate in practice. …
Consumo Verde ¿Para Quién?: Las Tierras, Cosmovisiones, Y Personas Escondidas Detrás De La Fiebre Del Oro Blanco / Green Consumption, For Who?: The Lands, World Views, And People Hidden Behind The White Gold Rush., Gabriel Gómez
Independent Study Project (ISP) Collection
La “Transición energética” a consumo verde ha sido reconocida globalmente como el camino necesario para evitar lo peor de la crisis climática, pero es una solución que depende en un aumento del litio. La manera más usada para extraer el litio genera impactos destructivos en los ambientes que contienen el recurso, y en Sudamérica, donde los habitantes son mayormente indígena. Usando las comunidades de Salinas Grandes y Laguna de Guayatayoc en Jujuy, Argentina como un caso práctico, este proyecto propone analizar cómo el discurso hegemónico del consumo verde invisibiliza a gente indígena, y cómo estas comunidades resisten entendimientos occidentales y …
Acid Mine Drainage In The Shamokin Creek Watershed: A Spatial Analysis Of Economic And Environmental Consequences Of Coal Mining, Ben Shimer
Student Project Reports
No abstract provided.
Amphibious Legal Geographies: Toward Land–Sea Regimes, Irus Braverman
Amphibious Legal Geographies: Toward Land–Sea Regimes, Irus Braverman
Contributions to Books
This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book discusses the juridical thinking that has enshrined the land/sea divide into contemporary governmental infrastructures, disciplinary traditions, and regulatory apparatuses, and charts the disastrous implications that such a legal fixation on the land/sea binary has wrought on human and other-than-human lifeworlds. As the collection proceeds, a second broad theme emerges, building on the first: when one rethinks the abstraction of law as played out on the ground, the “ground” itself shifts and fundamental divisions between land and sea that serve as the …
Genetic Freedom Of The Seas In The Age Of Extractivism: Marine Genetic Resources In Areas Beyond National Jurisdiction, Irus Braverman
Genetic Freedom Of The Seas In The Age Of Extractivism: Marine Genetic Resources In Areas Beyond National Jurisdiction, Irus Braverman
Contributions to Books
Areas beyond national jurisdiction are the largest environment on earth and marine genetic resources are its new, and perhaps final, frontier. It is no wonder, then, that the scope and protection of marine genetic resources in this oceanic space have been hotly contested and that a new doctrine for ocean governance has been coined in this context: mare geneticum. This chapter examines different definitions of marine genetic resources debated in the ongoing treaty negotiations over areas beyond national jurisdiction (the BBNJ), the conflicting interests involved, and how the law-science relationship has figured in these debates. Ultimately, many of the debates …
The Impact Of Sea-Level Rise In Numerically Modeled Landfalling Hurricanes: Katrina And The Gulf Coast., Serenity Nadirah Mercuri
The Impact Of Sea-Level Rise In Numerically Modeled Landfalling Hurricanes: Katrina And The Gulf Coast., Serenity Nadirah Mercuri
Electronic Theses and Dissertations
With climate change, landfalling hurricanes become an increasing threat to coastal regions. However, the interactions between the coastal landscape and landfalling hurricanes are often overlooked when addressing sea-level rise outside of inundation and independent of sea surface temperature. This study analyzed the potential impacts regarding structure and intensity as a result of sea-level rise in the Gulf of Mexico using the WRF-ARW numerical model coupled with a 1D ocean model. Analysis showed that 10 m windspeed from landfall forward was higher in modified coastlines, and minimum sea-level pressure post-landfall was consistently lower for modified runs where storms maintain a higher …
Safe Water For All: A Multi-Modal Approach To North Alabama's Water Resources, Elijah Walker
Safe Water For All: A Multi-Modal Approach To North Alabama's Water Resources, Elijah Walker
Theses
Environmental degradation is a destructive force produced by the human disturbance of pollution. It is a phenomenon that gradually evolves landscapes over time resulting in irreversible outcomes. Environmental degradation physically affects spaces’ resources, objects, and inhabiting humans. This study observes the impacts of pollution beyond physical boundaries and how it affects human identity/sense of place through the utilization of geographic information systems. Specifically, it examines cultural identity developed through human experiences and connections to landscapes containing water resources. Following, pollution contaminates water resources disrupting experiences and connections thus causing the cultural identity to disappear. The case study applied to this …
Wilderness And The Geotag: Exploring The Claim That "Geotagging Ruins Nature" In The Alpine Lakes Wilderness, Wa, Mara Gans
All Master's Theses
This research explores the claim that “geotagging ruins nature” by quantifying and qualifying patterns in geotag use and visitors’ experiences in the Alpine Lakes Wilderness, in Washington, United States. Many have raised concerns that geotags increase recreational visitation to public lands, which subsequently contributes to negative resource impacts. Others, however, claim that geotagging has made the outdoors more accessible to less privileged communities and raise concerns that condemning geotags will perpetuate the exclusion of certain groups from outdoor recreation. This debate is studied within federally designated Wilderness, which is legally defined as “untrammeled by man,” a definition rooted in problematic …
Examining Psilocybin And Lsd Consumption Through A Geographical Lens, Nicole Sarah Caruana
Examining Psilocybin And Lsd Consumption Through A Geographical Lens, Nicole Sarah Caruana
Geography ETDs
n recent years, the study of psychedelic science has reemerged across a variety of fields. Psilocybin and LSD (Lysergic Acid Diethylamide) are two psychedelic substances receiving an influx of attention for their success treating issues such as depression, post-traumatic stress, and addiction. Psilocybin and LSD are still widely used despite their classification as illegal Schedule I substance. This study aims to learn more about current users with the following questions guiding this research: What are barriers limiting psilocybin and LSD consumption? What are the motivations behind use? What impacts are psilocybin and LSD having on users lives? I used Qualitative …
Urban Forests And Their Potential To Combat Food Insecurity: Analyzing Foods From Street Trees In New York City, Ny, Kristen Cooney
Urban Forests And Their Potential To Combat Food Insecurity: Analyzing Foods From Street Trees In New York City, Ny, Kristen Cooney
Environment and Sustainability Summer Fellows
There is growing recognition that urban forests have the potential to combat food insecurity via their edible parts, namely fruits, berries, and nuts. Many tree species commonly planted in urban spaces have edible parts that may fulfill the nutritional needs of city residents that are food insecure, but no one has analyzed the value of city street trees to understand this potential. I analyzed New York City’s street trees by each species and their edible parts to measure this potential.
Association Between Stream Impairment By Mercury And Superfund Sites In The Conterminous Usa, Karessa L. Manning
Association Between Stream Impairment By Mercury And Superfund Sites In The Conterminous Usa, Karessa L. Manning
Masters Theses
Mercury is a natural element that can cause harm to the brain, heart, kidneys, lungs, and immune system, especially to fetuses developing in the womb. Many natural and anthropogenic factors contribute to mercury in the environment, such as geologic deposits, landfills, gold and silver mining operations, cement production, and atmospheric deposition. Mercury has been identified as a contaminant of concern at many National Priority List (NPL) sites, however, studies on contamination at NPL sites are often only conducted on a local level. This study was to analyze the potential connection between mercury-contaminated NPL sites and the presence of mercury impaired …
Evaluation Of A Low-Cost Uas And Phenocams For Measuring Grapevine Greenness, Timothy J. Hoheneder
Evaluation Of A Low-Cost Uas And Phenocams For Measuring Grapevine Greenness, Timothy J. Hoheneder
Graduate Theses, Dissertations, and Problem Reports
Unpersoned aerial systems (UAS) could provide winegrowers with the potential to monitor vineyard productivity with ultra-high-resolution imagery and low operational costs. This ability could prove particularly valuable in the challenging cool-climate viticultural areas of Appalachia. Especially in this mountainous region of increasingly variable microclimates, there could be of great value from an ability to use UAS-measured greenness to monitor wine grape phenology and predict harvest quality and quantity. In this study, I assess how UAS-measured greenness relates to three complementary measures of field-based: leaf angle measurements, phenocam measured greenness, and leaf spectral measurements of greenness. After correlating these field-based measures …
Using Historical Maps For Contaminated Site Identification And Prediction, And Environmental Justice Implications: A Case Study In Grand Rapids, Michigan, Dana Heusinkveld
Using Historical Maps For Contaminated Site Identification And Prediction, And Environmental Justice Implications: A Case Study In Grand Rapids, Michigan, Dana Heusinkveld
Masters Theses
As the production of synthetic chemicals has grown in the past centuries to increase production, lower costs, and generally make our lives more convenient, detecting and understanding the environmental impacts of these compounds has lagged significantly behind their mass production and wide-spread use. To combat this trend, sources of these contaminants, especially those that have been removed from the landscape, need to be quickly identified to make mitigation and remediation efforts more effective. In this study, historical Sanborn maps are used to extract and digitize historical site/land use in Grand Rapids during the early 1900s through the practical application of …
A Novel Approach To Updating Municipal Tax Parcel Impervious Surface Calculations, Patrick D. Muradaz
A Novel Approach To Updating Municipal Tax Parcel Impervious Surface Calculations, Patrick D. Muradaz
Senior Honors Projects, 2020-current
Accurate impervious surface calculations are important to many municipalities due to the high volumes of surface rainwater runoff caused by high impervious surface density. Municipalities must deal with this runoff through the establishment and maintenance of drainage facilities. To help offset the added cost of these facilities, many municipalities impose taxes and fees on privately owned impervious surfaces such as homes, driveways, and patios. Currently, in order for a city like Harrisonburg to calculate tax parcel impervious surface density, aerial images must be manually digitized or mapped using computer-based classification techniques using predictive models. These methods of impervious surface calculations …
Kitchen Chronicles And Crude Expectations: Understanding Everyday Life In The Upper Ecuadorian Amazon, Emily A. Babb
Kitchen Chronicles And Crude Expectations: Understanding Everyday Life In The Upper Ecuadorian Amazon, Emily A. Babb
Senior Theses
My thesis examines the everyday life of my Ecuadorian, Kichwa host family in an attempt to better understand how, if at all, they interact with and think about oil companies on a regular basis. In this way, I attempted to supplement the current literature, which tends to focus on the large, contentious interactions between indigenous people and the petroleum industry. It was my hope to expand the understanding of their identities both within and outside the context of oil and to show the complexity of their relationship with petroleum companies.
Living Rivers, Cosmopolitan Activism, And Environmental Justice In The Bengal Delta, Daniel Adel
Living Rivers, Cosmopolitan Activism, And Environmental Justice In The Bengal Delta, Daniel Adel
Cal Poly Humboldt theses and projects
This thesis explores the social movements and civil society activism to protect the rivers that flow through Bangladesh—the cradle and terminal delta floodplain of the transboundary Ganges, Brahmaputra, and Meghna river systems—, as well as ways to build regional cooperation and watershed democracy in South Asia. The research drew on four overarching fields of study: environmental justice, southern environmentalism, ecological nationalism, and environmental governance. These four bodies of scholarship helped address the overarching question: how are civil society organizations analyzing and responding to the water diversions and degradation of Bangladesh’s transboundary rivers? Semi-structured interviews were conducted with civil society organizations …
Using Gps And Gis To Engage Students In High-Impact Educational Practices (Hiep); A Case Study In Bahia Ballena, Costa Rica, Austin Riegel
Using Gps And Gis To Engage Students In High-Impact Educational Practices (Hiep); A Case Study In Bahia Ballena, Costa Rica, Austin Riegel
Student Symposium
One issue that many teachers face today is teaching students that are not English heritable speakers. In the past couple decades there has been a sharp increase in the amount of non-native English speakers in the classroom; making it important for new teachers to be able to relay information to the students when they don’t speak the same language. Over Spring Break (2019), I visited Costa Rica to work with a 6th grader class that spoke mainly Spanish -- I don’t have formal training in Spanish. We employed various high-impact educational practices and hands-on activities (e.g., drone flying, mapping with …
A Multi-Criteria Gis Model For Suitability Analysis Of Locations Of Decentralized Wastewater Treatment Units: Case Study In Sulaimania, Iraq, Ako Rashed Hama, Rafea Hashim Al-Suhili, Zeren Jamal Ghafour
A Multi-Criteria Gis Model For Suitability Analysis Of Locations Of Decentralized Wastewater Treatment Units: Case Study In Sulaimania, Iraq, Ako Rashed Hama, Rafea Hashim Al-Suhili, Zeren Jamal Ghafour
Publications and Research
Sulaimania is a City located in Kurdistan region in the north of Iraq. The city is facing a lack of water, and it will reach a very critical condition shortly. One of the potential solutions is to reuse the treated wastewater for non-direct human uses such as irrigation, washing, firefighting, groundwater recharging, and others. There is no sewage treatment plant in the city. The wastewater flows into a stream through some sewer outlets, and that causes big environmental issues. Decentralized wastewater treatment units (DTUs) are suggested to solve the issue. The treated wastewater will be used for the irrigation of …
Quantifying Climate Sensitivity And Climate-Driven Change In North American Amphibian Communities, David A. W. Miller, Evan H Campbell Grant, Erin Muths, Staci M. Amburgey, Michael J. Adams, Maxwell B. Joseph, J. Hardin Waddle, Pieter T. J. Johnson, Maureen E. Ryan, Benedikt R. Schmidt, Daniel L. Calhoun, Courtney L. Davis, Robert N. Fisher, David M. Green, Blake R. Hossack, Tracy A. G. Rittenhouse, Susan C. Walls, Larissa L. Bailey, Sam S. Cruickshank, Gary M. Fellers, Thomas A. Gorman, Carola A. Haas, Ward Hughson, David S. Pilliod, Steve J. Price, Andrew M. Ray, Walt Sadinski, Daniel Saenz, William J. Barichivich, Adrianne Brand
Quantifying Climate Sensitivity And Climate-Driven Change In North American Amphibian Communities, David A. W. Miller, Evan H Campbell Grant, Erin Muths, Staci M. Amburgey, Michael J. Adams, Maxwell B. Joseph, J. Hardin Waddle, Pieter T. J. Johnson, Maureen E. Ryan, Benedikt R. Schmidt, Daniel L. Calhoun, Courtney L. Davis, Robert N. Fisher, David M. Green, Blake R. Hossack, Tracy A. G. Rittenhouse, Susan C. Walls, Larissa L. Bailey, Sam S. Cruickshank, Gary M. Fellers, Thomas A. Gorman, Carola A. Haas, Ward Hughson, David S. Pilliod, Steve J. Price, Andrew M. Ray, Walt Sadinski, Daniel Saenz, William J. Barichivich, Adrianne Brand
Forestry and Natural Resources Faculty Publications
Changing climate will impact species’ ranges only when environmental variability directly impacts the demography of local populations. However, measurement of demographic responses to climate change has largely been limited to single species and locations. Here we show that amphibian communities are responsive to climatic variability, using > 500,000 time-series observations for 81 species across 86 North American study areas. The effect of climate on local colonization and persistence probabilities varies among eco-regions and depends on local climate, species life-histories, and taxonomic classification. We found that local species richness is most sensitive to changes in water availability during breeding and changes in …
Cultural Politics Of Community-Based Conservation In The Buffer Zone Of Chitwan National Park, Nepal, Yogesh Dongol
Cultural Politics Of Community-Based Conservation In The Buffer Zone Of Chitwan National Park, Nepal, Yogesh Dongol
FIU Electronic Theses and Dissertations
The dissertation research examines the socio-economic and political effects of community-based conservation initiatives within the Bagmara buffer zone community forests of Chitwan National Park, Nepal. In particular, the study investigates the role of buffer zones creation in structuring the way rural property rights have been defined, negotiated, and contested, in reinforcing or reducing patterns of ethnic dominance and exclusion, and in influencing how cultural identities are constituted and renegotiated. Using a political ecology framework with a specific focus on theoretical concepts of environmentality and territorialization, I conducted 12 months ethnographic and quantitative survey field research in the buffer zone communities …
Social Science Perspectives On Drivers Of And Responses To Global, Andrew K. Jorgenson, Shirley Fiske, Klaus Hubacek, Jia Li, Tom Mcgovern, Torben Rick, Juliet B. Schor, William Solecki, Richard York, Ariela Zycherman
Social Science Perspectives On Drivers Of And Responses To Global, Andrew K. Jorgenson, Shirley Fiske, Klaus Hubacek, Jia Li, Tom Mcgovern, Torben Rick, Juliet B. Schor, William Solecki, Richard York, Ariela Zycherman
Publications and Research
This article provides a review of recent anthropological, archeological, geographical, and sociological research on anthropogenic drivers of climate change, with a particular focus on drivers of carbon emissions, mitigation and adaptation. The four disciplines emphasize cultural, economic, geographic, historical, political, and social‐structural factors to be important drivers of and responses to climate change. Each of these disciplines has unique perspectives and makes noteworthy contributions to our shared understanding of anthropogenic drivers, but they also complement one another and contribute to integrated, multidisciplinary frameworks. The article begins with discussions of research on temporal dimensions of human drivers of carbon emissions, highlighting …
Summer Precipitation Occurrence Effect On Two Passerine Species In Thule, Greenland, Sara E. Baugh
Summer Precipitation Occurrence Effect On Two Passerine Species In Thule, Greenland, Sara E. Baugh
Celebration of Learning
Climate change is occurring at a faster rate in the Arctic than the rest of the globe, causing temperature rises at twice the rate of the global average and increased summer precipitation in the form of rain. These precipitation events are predicted to affect migratory bird species that breed throughout the Arctic. Increased occurrence of heavy rainstorms indirectly affect bird populations by impacting distribution and abundance of food supply, and directly by increasing mortality rates of juveniles. Studies conducted on bird species throughout the low Arctic regions; have shown that it is not the total precipitation of a breeding season …
An Analysis Of The Relationship Between Snowpack And Groundwater Across Utah Watersheds., Samuel Wright
An Analysis Of The Relationship Between Snowpack And Groundwater Across Utah Watersheds., Samuel Wright
Electronic Theses and Dissertations
This thesis examined what type of relationship existed between snow water equivalence (SWE) volume and groundwater elevation within six sub-watersheds in Utah. Data was gathered on SWE from seventeen SNOTEL sites and groundwater elevation data was gathered from six continuously monitored groundwater wells. This data was gathered for January through May for 2011, 2013, and 2014 in order to represent the water conditions that were above average, below average, and average respectively. Using MLR formulas the total SWE for each sub-watershed was determined for each year/month. Afterwards a correlation analysis was performed to determine if any association existed between SWE …
Mapping Community Space And Place In Mto Wa Mbu, Tanzania Through Surveys And Gis, Jessica Craigg
Mapping Community Space And Place In Mto Wa Mbu, Tanzania Through Surveys And Gis, Jessica Craigg
Georgia College Student Research Events
Cities throughout the African continent have been developing at an unprecedented pace, many of them due to the influence of the tourism industry. This is particularly true in Tanzania, a country famous for its national parks and their draw to tourists who help provide money for development. However, the only way to get the whole story on how to spend this money is through the experiences and needs of the people themselves. This study focuses on a small town in northeastern Tanzania, Mto wa Mbu, situated near Lake Manyara National Park, and its people’s perceptions of the park and community. …
Maritime Accounts In The European Union: Coping With Limited Information, Regis Kalaydjian
Maritime Accounts In The European Union: Coping With Limited Information, Regis Kalaydjian
Journal of Ocean and Coastal Economics
The European Commission's effort to define the scope and components of the maritime economy was initially motivated by the "Integrated Maritime Policy" (2007). This policy package, principally based on coastal environment protection, maritime safety and security, and the European marine observation and data network, also included the development of an EU-wide economic and social database on maritime activities. The IMP database (2009) used experience from EU member states in terms of maritime database development, and conversely was an opportunity to update national contributions.
Later, two other packages contributed to broadening EC's approach. 1) The "Marine Strategy Framework Directive" (2008) was …
Cruising The Canal: A Methodological Approach To Assessing Trail Conditions Along The Hennepin Canal Parkway, Alyssa Clarida
Cruising The Canal: A Methodological Approach To Assessing Trail Conditions Along The Hennepin Canal Parkway, Alyssa Clarida
Geography: Student Scholarship & Creative Works
Trail conditions in the United States are degrading and trail systems do not receive enough funding to repair them in a timely manner. Park managers often conduct trail assessments to collect trail condition data. They use this data to make timely and judicious decisions regarding trail repairs. However, many trail assessments are time consuming, costly, and require high levels of expertise. This project creates a trail assessment methodology that can be applied to a trail with limited funds. The final methodology was efficient, succinct, accurate, and simple to conduct. It uses a problem based methodology where every instance of degradation …
The Changes In Woodlot Land Cover From 1988 To 2006 Within Private/Farmland In Hancock County, Ohio, Louis C. Birchall
The Changes In Woodlot Land Cover From 1988 To 2006 Within Private/Farmland In Hancock County, Ohio, Louis C. Birchall
Williams Honors College, Honors Research Projects
The amount of woodlots in Ohio have dramatically decreased since the introduction of settlers into the State. The removal of forest for open space, urban areas, fuel and resources was key to this change. Since the development of the economy to a more service based industry in recent years, woodlots have begun to return in certain areas. This research shows the change in woodlot patterns in Hancock County, Ohio from 1988 to 2006.
The analysis was done by classifying the data into 'woodlot' and 'other land use' by using image segmentation and manual editing processes. Accuracy checks were conducted on …
Power Distribution And Probabilistic Forecasting Of Economic Loss And Fatalities Due To Hurricanes, Earthquakes, Tornadoes, And Floods In The United States, Scott Edward Baker
Power Distribution And Probabilistic Forecasting Of Economic Loss And Fatalities Due To Hurricanes, Earthquakes, Tornadoes, And Floods In The United States, Scott Edward Baker
Browse all Theses and Dissertations
Traditionally, the size of natural disaster events such as hurricanes, earthquakes, tornadoes, and floods is measured in terms of wind speed (m/sec), energy released (ergs), or discharge (m3/sec). Economic loss and fatalities from natural disasters result from the intersection of the human infrastructure and population with the natural event. This study investigates the size versus cumulative number distribution of individual natural disaster events in the United States. Economic losses are adjusted for inflation to 2014 United States Dollars (USD). The cumulative number divided by the time over which the data ranges is the basis for making probabilistic forecasts in terms …