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Articles 61 - 90 of 702
Full-Text Articles in Physical Sciences and Mathematics
2023 March - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2023 March - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.
Environmental Clustering Of New Zealand Dairy Herds, J. R. Bryant, N. López-Villalobos, J. E. Pryce, C. W. Holmes
Environmental Clustering Of New Zealand Dairy Herds, J. R. Bryant, N. López-Villalobos, J. E. Pryce, C. W. Holmes
IGC Proceedings (1993-2023)
Previous studies have found that milk yield (a proxy for feeding level) and temperature-humidity index (THI) are important factors in explaining genotype x environment (G x E) interactions, indicating differences between the abilities of genotypes to forage or consume concentrates effectively or to cope with thermal stress (Ravagnolo and Misztal, 2000; Zwald et al., 2003). The objective of this study was to quantify and cluster (CL) herd environments within New Zealand (NZ) based on production levels, a summer heat load index (HLI) and geographical location.
2023 February - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2023 February - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.
Soil Organic Matter Diagenetic State Informs Boreal Forest Ecosystem Feedbacks To Climate Change, Allison N. Myers-Pigg, Karl Kaiser, Ronald Benner, Susan E. Ziegler
Soil Organic Matter Diagenetic State Informs Boreal Forest Ecosystem Feedbacks To Climate Change, Allison N. Myers-Pigg, Karl Kaiser, Ronald Benner, Susan E. Ziegler
Faculty Publications
The fate of soil organic carbon (SOC) in boreal forests is dependent on the integrative ecosystem response to climate change. For example, boreal forest productivity is often nitrogen (N) limited, and climate warming can enhance N cycling and primary productivity. However, the net effect of this feedback on the SOC reservoir and its longevity with climate change remain unclear due to difficulty in detecting small differences between large and variable carbon (C) fluxes needed to determine net changes in soil reservoirs. The diagenetic state of SOC – resulting from the physicochemical and biological transformations that alter the original biomolecular composition …
The Evolution Of Life History Traits And Their Thermal Plasticity In Daphnia, Larry L. Bowman Jr., David M. Post
The Evolution Of Life History Traits And Their Thermal Plasticity In Daphnia, Larry L. Bowman Jr., David M. Post
ETSU Faculty Works
Few studies have explored the relative strength of ecogeographic versus lineage-specific effects on a global scale, particularly for poikilotherms, those organisms whose internal temperature varies with their environment. Here, we compile a global dataset of life history traits in Daphnia, at the species-and population-level, and use those data to parse the relative influences of lineage-specific effects and climate. We also compare the thermal response (plasticity) of life history traits and their dependence on climate, temperature, precipitation, and latitude. We found that the mode of evolution for life history traits varies but that the thermal response of life history traits most …
The Response Of Sea Ice And High-Salinity Shelf Water In The Ross Ice Shelf Polynya To Cyclonic Atmosphere Circulations, Xiaoqiao Wang, Zhaoru Zhang, Michael S. Dinniman, Petteri Uotila, Xichen Li, Meng Zhou
The Response Of Sea Ice And High-Salinity Shelf Water In The Ross Ice Shelf Polynya To Cyclonic Atmosphere Circulations, Xiaoqiao Wang, Zhaoru Zhang, Michael S. Dinniman, Petteri Uotila, Xichen Li, Meng Zhou
CCPO Publications
Coastal polynyas in the Ross Sea are important source regions of high-salinity shelf water (HSSW) – the precursor of Antarctic Bottom Water that supplies the lower limb of the thermohaline circulation. Here, the response of sea ice production and HSSW formation to synoptic-scale and mesoscale cyclones was investigated for the Ross Ice Shelf Polynya (RISP) using a coupled ocean–sea ice–ice shelf model targeted on the Ross Sea. When synoptic-scale cyclones prevailed over RISP, sea ice production (SIP) increased rapidly by 20 %–30 % over the entire RISP. During the passage of mesoscale cyclones, SIP increased by about 2 times over …
Understanding Urban Heat Islands And Impacts, Darbi Berry, Nicole Fassina, A-Bel Gong
Understanding Urban Heat Islands And Impacts, Darbi Berry, Nicole Fassina, A-Bel Gong
San Diego Regional Climate Collaborative
Urban heat islands play a large role in aggravating climate impacts on water, electricity, and air pollutants, and affect vulnerable communities disproportionately. This blog calls onto historical redlining and disinvestment and urban development as direct contributors of socioeconomic disparities and includes a case study of one of our region’s most vulnerable communities.
Water And Agriculture In The San Diego Region, Olivia Frigyes, Darbi Berry, A-Bel Gong
Water And Agriculture In The San Diego Region, Olivia Frigyes, Darbi Berry, A-Bel Gong
San Diego Regional Climate Collaborative
The San Diego region is susceptible to drought with little annual precipitation. The rising temperature and changing precipitation is expected to affect the agriculture economy. Classified as having a mediterranean climate, San Diego has hot, dry summers and cooler, wet winters. In this blog, learn about how San Diego's climate shapes its agricultural communities' reliance on water supply.
2022 Annual Report, San Diego Regional Climate Collaborative
2022 Annual Report, San Diego Regional Climate Collaborative
San Diego Regional Climate Collaborative
The San Diego Regional Climate Collaborative is a network for public agencies that serves the San Diego region to share expertise, leverage resources and advance comprehensive solutions to facilitate climate change planning. By partnering with academia, nonprofits, and businesses, the SDRCC also works to leverage the profile of regional leadership. This is the 2021 San Diego Regional Climate Collaborative Annual Report.
Understanding Binational Water Scarcity, Avery Aquino, Darbi Berry
Understanding Binational Water Scarcity, Avery Aquino, Darbi Berry
San Diego Regional Climate Collaborative
Water scarcity has become a growing concern in many regions around the world, including the San Diego, CA and Tijuana, MX border region Water is a valuable resource that sustains all life on earth, and the San Diego/Tijuana border region is no exception. With increasing population growth, urbanization, and changing climate patterns on both sides of the border, the demand for water resources has significantly outstripped its availability in this region. As a result, it has become essential tounderstand the extent and impacts of water scarcity, and to develop innovative and sustainable solutions that can mitigate its effects.
Drought Affects Sex Ratio And Growth Of Painted Turtles In A Long-Term Study In Nebraska, Larkin Powell, Ellen Dolph, Charrissa R. Neil
Drought Affects Sex Ratio And Growth Of Painted Turtles In A Long-Term Study In Nebraska, Larkin Powell, Ellen Dolph, Charrissa R. Neil
School of Natural Resources: Faculty Publications
Climate forecasts suggest the Great Plains of North America have increased risk of droughts during global warming. Environmental factors have potential to influence turtle populations in aquatic habitats through temperature-dependent sex determination and influences on food availability. Long-term studies are critical to evaluate the influence of climatic variation on turtles. We used a 12-year set of mark-recapture data collected from painted turtles (Chrysemys picta, n = 162) in a pond in Keith County, Nebraska during 2005–2016 to assess variation in sex ratio and growth dynamics. Southwest Nebraska experienced two periods of drought during our study (Palmer Hydrologic Drought Index [PHDI] …
Wildfire Activity, Climate Response, And Ice Core Signal Preservation In The North Pacific Region, Margaret Lonergan
Wildfire Activity, Climate Response, And Ice Core Signal Preservation In The North Pacific Region, Margaret Lonergan
Dartmouth College Master’s Theses
Wildfires have become more destructive over recent decades with climate change, so understanding how fire regimes will change with further climate change is critical for effective fire management practices. Paleofire records provide insight into how fire regimes have responded to temperature and precipitation variability in the past. Ice cores, such as the Denali ice core from central Alaska, capture regional-scale fire proxies including black carbon at an annual resolution for centuries to millennia. This makes them ideally suited to construct high temporal resolution, regional paleofire records extending back into the Common Era. However, it is critical to understand the instrumental …
An Integrative Salt Marsh Conceptual Framework For Global Comparisons, Erik S. Yando, Scott F. Jones, W. Ryan James, Denise D. Colombano, Diana I. Montemayor, Stefanie Nolte, Jacqueline L. Raw, Shelby L. Ziegler, Luzhen Chen, Daniele Daffonchio, Marco Fusi, Kerrylee Rogers, Liudmila Sergienko
An Integrative Salt Marsh Conceptual Framework For Global Comparisons, Erik S. Yando, Scott F. Jones, W. Ryan James, Denise D. Colombano, Diana I. Montemayor, Stefanie Nolte, Jacqueline L. Raw, Shelby L. Ziegler, Luzhen Chen, Daniele Daffonchio, Marco Fusi, Kerrylee Rogers, Liudmila Sergienko
Biological Sciences Faculty Publications
Salt marshes occur globally across climatic and coastal settings, providing key linkages between terrestrial and marine ecosystems. However, salt marsh science lacks a unifying conceptual framework; consequently, historically well-studied locations have been used as normative benchmarks. To allow for more effective comparisons across the diversity of salt marshes, we developed an integrative salt marsh conceptual framework. We review ecosystem-relevant drivers from global to local spatial scales, integrate these multi-scale settings into a framework, and provide guidance on applying the framework using specific variables on 11 global examples. Overall, this framework allows for appropriate comparison of study sites by accounting for …
Food Waste Storage Gaseous Emissions Detection And Quantification Using Infrared Spectroscopy, Ryley A. Burton-Tauzer
Food Waste Storage Gaseous Emissions Detection And Quantification Using Infrared Spectroscopy, Ryley A. Burton-Tauzer
Cal Poly Humboldt theses and projects
A growing interest in sustainable waste management and the implementation of new policies have prompted a shift towards alternative resource recovery methods for organic waste, including food waste. To effectively assess alternative food waste treatment scenarios, it is important to evaluate the life cycle impacts associated with each scenario. The storage phase of food waste, encompassing its accumulation in kitchens, and storage in bins for collection and transportation, has been overlooked as a source of greenhouse gases in previous studies. This investigation aimed to identify the greenhouse gases emitted during the initial five-day period of low-oxygen storage. An open dynamic …
Cloud Seeding, Wildfire Smoke Emissions, And Solar Geoengineering: Why Is Climate Modification Unregulated?, Karen Bradshaw, Monika U. Ehrman
Cloud Seeding, Wildfire Smoke Emissions, And Solar Geoengineering: Why Is Climate Modification Unregulated?, Karen Bradshaw, Monika U. Ehrman
Faculty Journal Articles and Book Chapters
This Article is the first to identify that companies and agencies systemically modify climatic airspaces through wildfire smoke emissions, weather modification (cloud seeding to cause rain), and solar geoengineering. Climate modification is not a conspiracy theory or a hypothetical: it is happening, and it is changing weather patterns. Yet, climate modification is almost wholly unregulated. Further, it is also not recorded or tracked in systemic ways. That is to say, even government agencies do not have comprehensive records of whether; how often; or how much climate modification is occurring. The data is simply not gathered, aggregated, or stored. As a …
Remote Ambient Aerosols Found In The Southern Great Plains And Eastern North Atlantic: A Comprehensive Analysis Of Optical Behavior And Aerosol-Cloud Interaction, Daniel J. Bonanno
Remote Ambient Aerosols Found In The Southern Great Plains And Eastern North Atlantic: A Comprehensive Analysis Of Optical Behavior And Aerosol-Cloud Interaction, Daniel J. Bonanno
University of the Pacific Theses and Dissertations
The data presented in this thesis showcases the investigation of various aerosol types and the role they play in the hydrological system and global climate models. Long-range transport aerosols, including atmospheric soot, mineral dust, and ammonium sulfate, in addition to near-site sources such as secondary organic aerosols (SOAs), sea spray, aliphatic hydrocarbons, and other organics, are prioritized in the analysis of two separate remote field studies. Each of these campaigns revealed the juxtaposition between dry summer months and wet winter months, and the connection between seasonal variability and sample collection. Two spectromicroscopic techniques were used to elucidate chemical composition, morphology …
2023 January - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2023 January - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.
2022 - Tennessee Annual Climate Summary, Tennessee Climate Office, East Tennessee State University
2022 - Tennessee Annual Climate Summary, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.
Perceptions Of Trail Safety In Humboldt County, California: An Analysis Of Safety Concerns, Factors That Impact Trail Use, And The Value People Place On Trails, Natalie C. Arroyo
Perceptions Of Trail Safety In Humboldt County, California: An Analysis Of Safety Concerns, Factors That Impact Trail Use, And The Value People Place On Trails, Natalie C. Arroyo
Cal Poly Humboldt theses and projects
Trails in Humboldt County, California that are used for both transportation and recreation have myriad community benefits. However, people’s concerns about feeling safe can affect trail use, design, and development, as well as how trails are valued and perceived by residents. There has been a lack of information in Humboldt County about trail safety perceptions despite it being a factor that repeatedly arises in infrastructure planning and funding conversations. My research was focused on answering the following questions: (1) How do Humboldt County trail users perceive their safety on and near trails? (2) What factors affect these perceptions about safety, …
Modeling 21st Century Peak Flows In The Nooksack River Basin In Northwestern Washington State Using Dynamically-Downscaled Global Climate Model Projections, Evan A. Paul
WWU Graduate School Collection
The Nooksack River in northwestern Washington State provides freshwater for agriculture, municipal, and industrial use and serves as a vital habitat for endangered salmon, a resource that is of cultural and economic importance to the Nooksack Indian Tribe and the surrounding region. As more landscape becomes exposed to rain rather than snow and heavy winter precipitation events intensify (i.e., atmospheric rivers), peak flows and sediment delivery to streams will increase due to rapid runoff, resulting in salmon habitat degradation and increased flood risk. Thus, anticipating the effect of climate change on peak flows is crucial for salmon habitat restoration efforts …
Machine Learning-Based Data Analytics For Understanding Space Weather And Climate, Yasser Abduallah
Machine Learning-Based Data Analytics For Understanding Space Weather And Climate, Yasser Abduallah
Dissertations
This dissertation addresses multiple crucial problems in space weather and climate, presenting new machine learning-based data analytics algorithms and models for tackling the problems.
First, the dissertation presents two new approaches to predicting solar flares. One approach, called DeepSun, predicts solar flares by utilizing a machine-learning-as-a-service (MLaaS) platform. The DeepSun system provides a friendly interface for Web users and an application programming interface (API) for remote programming users. It adopts an ensemble learning method that employs several machine learning algorithms to perform multiclass flare prediction. The other approach, named SolarFlareNet, forecasts the occurrence of solar flares within the next 24 …
Analysis Of Precipitation Reversals Over The State Of Arkansas, Mallory Hoff
Analysis Of Precipitation Reversals Over The State Of Arkansas, Mallory Hoff
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
Recent studies have examined hydroclimate precipitation reversals, but because it is a newly defined concept, there is minimal research available on how reversals are changing, and it has not been widely investigated. Precipitation reversal is the rapid switch between wet and dry periods or “precipitation extremes and the opposite” (McKay, 2018), based on precipitation measurements in this case. A single reversal is the immediate transition from a wet to a dry period or from a dry to a wet period. Changes in reversals have not been thoroughly reported and this gap in research creates a risk of unpredictable conditions that …
2022 December - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2022 December - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.
Geology, Soils And Climate Of Western Australia's Wine Regions, Peter J. Tille, Angela Stuart-Street, Peter S. Gardiner
Geology, Soils And Climate Of Western Australia's Wine Regions, Peter J. Tille, Angela Stuart-Street, Peter S. Gardiner
Bulletins 4000 -
This bulletin details what is special and unique about the geology, soil and climate of the south-west of Western Australia (WA), an area that encompasses the state’s 9 wine regions.
We have arranged the information into 2 parts:
- In Part 1, we broadly describe the special geological, soil and climate features of the south-west of WA to provide context for the wine regions.
- In Part 2, we describe the geology, soil and climate of the regions and subregions of the Geographical Indications (GI) scheme (administered by Wine Australia) for WA.
Through this work we have found that the wine regions …
2022 November - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2022 November - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.
Environment And Sustainability: October 2022, Environment And Sustainability, Office Of The President
Environment And Sustainability: October 2022, Environment And Sustainability, Office Of The President
Environment and Sustainability
• Launch of the ‘Sustainability Leaders’ series
• University’s first decarbonization plan developed and approved
• AKUH wins environmental excellence award
• Our climate work gets featured on radio
• And much more..
2022 October - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2022 October - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.
Climate Impacts On North American Quail, Shelby M. Perry, Erin Moser, Jeffrey G. Whitt, Kelly S. Reyna
Climate Impacts On North American Quail, Shelby M. Perry, Erin Moser, Jeffrey G. Whitt, Kelly S. Reyna
National Quail Symposium Proceedings
North America’s quail population trends are often linked to regional climate. Extreme climate events such as severe drought, hard freezes, or excessive winter precipitation can reduce quail populations by as much as 84%. Above-average spring and summer temperatures coincident with drought can reduce the laying season for quail by ≤60 days. Exposure of quail eggs to high temperatures during preincubation can initiate and alter embryonic development. Here, we review the impacts of extreme climate events and a changing climate on the survival, reproduction, and population trends of 6 North American quail species: California quail (Callipepla californica), Gambel’s quail …
Geomorphic And Paleoclimatic Implications Of Glacial Extent Records In The Sierra Nevada Del Cocuy, Colombia During Termination 1, Jordan Nickerson Herbert
Geomorphic And Paleoclimatic Implications Of Glacial Extent Records In The Sierra Nevada Del Cocuy, Colombia During Termination 1, Jordan Nickerson Herbert
Dartmouth College Master’s Theses
Reconstructions of past glacial extents using geomorphic mapping and cosmogenic dating provide an opportunity to infer past climates. A record of the past extents of tropical mountain glaciers is particularly useful because there are few other means to reconstruct past temperatures in high-altitude, low-latitude locations. The tropics play an outsized role in mediating global climate, yet there is a lack of understanding of how the tropics may have influenced past climate changes such as the most recent deglaciation (Termination 1, ~18–11.7 ka). Improving reconstructions of tropical mountain glaciers will aid in understanding the role of the tropics in the global …
2022 September - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2022 September - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Report
No abstract provided.