Oceanography and Atmospheric Sciences and Meteorology Commons^™

Polarimetric Radar And Vhf Lightning Observations In A Significantly Tornadic Supercell, Jacob Bruss

The Journal of Purdue Undergraduate Research

No abstract provided.

Agricultural Aerosols: The Impact Of Farming Activity On Ice Nucleating Particles, Joseph Robinson

The Journal of Purdue Undergraduate Research

Farming activities cause particles such as soil dust and plant material to be emitted into the air. Some of these aerosols can become ice nucleating particles (INPs), serving as seeds for ice and mixed-phase clouds. While there have been ground-based studies of these particles in the western Great Plains and a single air-based study in Indiana, there is a distinct lack of ground-based studies in the Midwest. In Indiana, over two-thirds of the state is farmland, with over 75% of land in Tippecanoe County used for agriculture. Despite farming being such an essential part of life in Indiana, the connection …

Changing Climates And Extreme Weather For Minnesota, Patrick A. Tebbe

Mechanical and Civil Engineering Department Publications

Climate change is impacting the design, prediction, and operation of HVAC systems for the built environment, and will continue to do so for the foreseeable future. This presentation reviews climate predictions for the upper Midwest and how they will affect the HVAC industry. Topics such as changing design conditions, extreme weather impact, and increased electrification will be addressed.

2022 November - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Reports

No abstract provided.

Questions To Advance Research On Equitable Coastal Resilience, Wie Yusuf

School of Public Service Faculty Publications

No abstract provided.

Coastal Squeeze, Climigration, And Equity Implications, Wie Yusuf

School of Public Service Faculty Publications

Summary: Coastal squeeze is impacting communities across the United States. Agricultural lands are affected by groundwater salt intrusion, habitats are lost due to limited space for species to migrate inland, natural capital and flood protection values are impacted by reduction in undeveloped land for natural ecosystems, infrastructure such as transportation are affected by flooding, and insurance companies are withdrawing from covering properties in coastal communities experiencing sea level rise and flooding. Resulting ‘climigration’ is occurring, for example, in Puerto Rico residents moving off the island, and subdivisions in North Carolina and Virginia being turned over to conservation. Lower-income communities are …

Emergency Management For Equitable Coastal Resilience, Wie Yusuf

School of Public Service Faculty Publications

Summary: The discipline and practice of emergency management provide opportunities to promote equity in resilience. This may be accomplished by (1) expanding and deepening emergency management’s responsibilities to more explicitly incorporate mid-to-long-term recovery, and (2) advancing workforce diversity. Further, the prioritization of planning investments may promote more equitable recovery pathways for communities. Tracking of resilience investments and associated benefits across communities may provide opportunities to assess the equity of investments. Advancing resilience literacy and risk assessment among the citizenry may promote equity in resilience.

Review Of The Energy And Social Impact Of Bitcoin Mining And Transactions And Its Potential Use As A Productive Use Of Energy (Pue) To Aid Equitable Investment In Solar Micro And Mini Grids Worldwide, Kevin Hallinan, Lu Hao, Rydge Mulford, Lauren Bower, Kaitlin Russell, Austin Mitchell, Alan Schroeder, Rustam Kuzhin, Mohammad Ehsan Naikkhua, Rohulla Arya, Sayed Ehsani, Rishabh Shukla

Mechanical and Aerospace Engineering Working Papers

Despite the climate commitments made by countries in the Paris Climate Agreement adopted in 2015, and reinforced during COP 21, world carbon emissions have increased in both 2021 and 2022. It is increasingly unlikely that the world can achieve the targeted 50% carbon reduction by 2030; the reduction approximately needed for reducing global temperature rise since the beginning of the industrial revolution to less than 1.5 deg. C. At the same time, the carbon intensive loads associated with bitcoin mining have grown, thereby contributing to growing worldwide carbon emissions. In this context, the role of cryptocurrency and particularly bitcoin is …

Recommendations For Encouraging Collaborations To Address Equitable Coastal Resilience Through Engaged/Applied Research And On-The-Ground Projects/Programs, Wie Yusuf

School of Public Service Faculty Publications

No abstract provided.

Research-Practice Collaborations To Address Equity Through Implementable, On-The-Ground Coastal Resilience Projects, Wie Yusuf

School of Public Service Faculty Publications

Summary. The discussion of research-practice collaborations to address equity through implementable, on-the-ground projects and programs converged around several interconnected themes that included: (1) prioritizing equity focus in defining and measuring projects’ success, (2) involving local communities in projects early on and through long-term monitoring, using interdisciplinary teams, and (3) incentivizing such projects through proper resourcing. Prioritizing equity in project measurement is only possible with the community’s involvement, and proper resourcing would ensure that community partners are resourced appropriately to support their resilience efforts.

Equity Concerns Underpinning Policy Analysis And Decision Making For Coastal Resilience, Wie Yusuf

School of Public Service Faculty Publications

Summary: Equity is increasingly becoming a consideration in resilience-focused policy. There is heightened interest in measuring how resilience policies, projects, and programs may impact equity. Equity may be advanced by a more inclusive policy process, well-developed communication channels, regular reference to the resilience research body of knowledge, and consultation with subject matter experts. There is need for increased clarity in the conceptual and operational definitions of equity, and consideration of the impact of resilience investments on a range of social and economic disparities.

Editor's Note, Padraig O'Malley

New England Journal of Public Policy

Stephanie Heckman is a visual artist who attended the Glasgow conference. “I attended COP26 as a visual storyteller,’ she says. “Visual storytelling (known also as graphic recording) involves the use of graphics, drawings and hand lettering to capture the essence of collective conversation. It is a tool for live notetaking and sense-making; it stimulates participants to engage with each other and complex subject matter, and makes the outcomes more memorable, engaging and accessible to others not present at these conversations.”

Stephanie was an accredited observer delegate at COP26 and a “civic participant” in the many events happening around Glasgow at …

Visual Report Of Cop26, Stéphanie Heckman

New England Journal of Public Policy

As a visual practitioner my job is to draw people’s thoughts, and in so doing, help people make sense of them. The visual summaries I create live during conferences aim to capture more than just the dry content, but also the dynamic, the mood and the unspoken. It is a tool more aligned with how our associative, sensory-fed brains work, for coping with the deluge of information that faces us these days. And it’s a tool that can help overcome language, learning and other barriers to access.

When I discovered in January 2020 that the next Conference of the Parties, …

2022 October 27 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Silver Carp Hypopthalmichthys Molitrix Movements In The Lower Tennessee And Lower Cumberland River, Miranda Belanger, Timothy Spier

Student Scholarship & Creative Works

Silver Carp Hypophthalmichthys molitrix are an invasive species making up a large portion of the fish biomass in the lower portions of the Tennessee River and the Cumberland River. This species is expanding its range throughout the upper portions of these rivers, beginning with Kentucky Lake and Lake Barkley. Silver Carp rarely spawn in Kentucky Lake and Lake Barkley, but they can enter these reservoirs through the lock chamber. Thus, the bottleneck created by lock chambers can be used to control expansion of invasive Silver Carp. Although Silver Carp movement patterns have been studied in other portions of the Tennessee …

2022 October 20 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Evaluating Gizzard Shad Dorosoma Cepedianum Populations In Two Kentucky Reservoirs Recently Invaded By Silver Carp Hypophthalmichthys Molitrix, Nathan Klein, Timothy Spier

Student Scholarship & Creative Works

Gizzard Shad Dorosoma cepedianum are an ecologically important fish species found in many reservoirs throughout the southeastern United States such as Kentucky Lake and Lake Barkley. One current challenge that Gizzard Shad may face in these two reservoirs is competition with the invasive Silver Carp Hypophthalmichthys molitrix. However, quantifying the impacts of this competition may be difficult because of limited baseline population data for Gizzard Shad in these two reservoirs. The objective of this study is to describe size structure, condition, age, growth, mortality, and spawning potential of these two populations. Gizzard Shad were collected by boat electrofishing and …

Ocean Currents Break Up A Tabular Iceberg, Alex Huth, Alistair Adcroft, Olga Sergienko, Nuzhat Khan

Publications and Research

In December 2020, giant tabular iceberg A68a (surface area 3900 km 2 ) broke up in open ocean much deeper than its keel, indicating that the breakage was not immediately caused by collision with the seafloor. Giant icebergs with lengths exceeding 18.5 km account for most of the calved ice mass from the Antarctic Ice Sheet. Upon calv - ing, they drift away and transport freshwater into the Southern Ocean, modifying ocean circulation, disrupting sea ice and the marine biosphere, and potentially triggering changes in climate. Here, we demonstrate that the A68a breakup event may have been triggered by ocean-current …

A Numerical And Machine Learning Investigation Of Water Quality In The Northern Gulf Of Mexico, From Estuaries To Shelf, Yanda Ou

LSU Doctoral Dissertations

In this study, numerical and machine learning (ML) models are developed and adapted to investigate the water quality of the Barataria Estuary and the Louisiana-Texas (LaTex) Shelf in northern Gulf of Mexico. By using a 3-D hydrodynamic ROMS model, the salinity variability of the Barataria Estuary is found highly influenced by the Mississippi River discharges and man-made river diversion systems. The Mississippi River freshwater can intrude into the estuary through the middle and the east passes. Sensitivity tests indicate that decreases in lower estuarine salinity due to the elevated Mississippi River discharges are more apparent than the salinity increases due …

Comparative Behavioral Ecotoxicology Of Inland Silverside Larvae Exposed To Pyrethroids Across A Salinity Gradient, Sara J. Hutton, Samreen Siddiqui, Emily I. Pedersen, Christopher Y. Markgraf, Amelie Segarra, Michelle L. Hladik, Richard E. Connon, Susanne M. Brander

United States Geological Survey: Staff Publications

Pyrethroids, a class of commonly used insecticides, are frequently detected in aquatic environments, including estuaries. The influence that salinity has on organism physiology and the partitioning of hydrophobic chemicals, such as pyrethroids, has driven interest in how toxicity changes in saltwater compared to freshwater. Early life exposures in fish to pyrethroids cause toxicity at environmentally relevant concentrations, which can alter behavior. Behavior is a highly sensitive endpoint that influences overall organism fitness and can be used to detect toxicity of environmentally relevant concentrations of aquatic pollutants. Inland Silversides (Menidia beryllina), a commonly used euryhaline model fish species, were exposed …

Population Health Metrics During The Early Stages Of The Covid-19 Pandemic: Correlative Pilot Study, Marie A. Severson, David A. Cassada, Victor C. Huber, Daniel D. Snow, Lisa M. Mcfadden

Nebraska Water Center: Faculty Publications

Background: COVID-19 has caused nearly 1 million deaths in the United States, not to mention job losses, business and school closures, stay-at-home orders, and mask mandates. Many people have suffered increased anxiety and depression since the pandemic began. Not only have mental health symptoms become more prevalent, but alcohol consumption has also increased during this time. Helplines offer important insight into both physical and mental wellness of a population by offering immediate, anonymous, cheap, and accessible resources for health and substance use disorders (SUD) that was unobstructed by many of the mandates of the pandemic. Further, the pandemic also …

Using Active Source Seismology To Image The Palos Verdes Fault Damage Zone As A Function Of Distance, Depth, And Geology, Travis Alongi, Emily E. Brodsky, Jared Kluesner, Daniel Brothers

United States Geological Survey: Staff Publications

Fault damage zones provide a window into the non-elastic processes of an earthquake. Geological and seismic tomography methods have been unable to measure damage zones at depth with sufficient spatial sampling to evaluate the relative influence of depth, distance, and lithological variations. Here, we identify and analyze the damage zone of the Palos Verdes Fault offshore southern California using two 3D seismic reflection datasets. We apply a novel algorithm to identify discontinuities attributed to faults and fractures in large seismic volumes and examine the spatial distribution of fault damage in sedimentary rock surrounding the Palos Verdes Fault. Our results show …

Coastal Wetland Area Change For Two Freshwater Diversions In The Mississippi River Delta, John R. White, Brady Couvillion, John W. Day

United States Geological Survey: Staff Publications

Coastal systems around the globe are being re-integrated with adjacent river systems to restore the natural hydrologic connection to riparian wetlands. The Mississippi River sediment diversions or river reconnections are one such tool to combat high rates of wetland loss in coastal Louisiana, USA by providing freshwater, sediment, and nutrients. There has been some disagreement in the published literature whether re-establishing river reconnection is slowing or contributing to coastal wetland loss. This issue is due to the difficulties in the application of remote sensing in low-relief environments where water level changes could indicate either land loss or simply temporary submergence. …

2022 October 13 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Meteor Radar Vertical Wind Observation Biases And Mathematical Debiasing Strategies Including The 3dvar+Div Algorithm, Alan Z. Liu, Zishun Qiao, Gunter Stober, Alexander Kozlovsky, Ales Kuchar, Christoph Jacobi, Chris Meek, Diego Janches, Guiping Liu, Masaki Tsutsumi, Njål Gulbrandsen, Satonori Nozawa, Mark Lester, Evgenia Belova, Johan Kero, Nicholas Mitchell

Publications

Meteor radars have become widely used instruments to study atmospheric dynamics, particularly in the 70 to 110 km altitude region. These systems have been proven to provide reliable and continuous measurements of horizontal winds in the mesosphere and lower thermosphere. Recently, there have been many attempts to utilize specular and/or transverse scatter meteor measurements to estimate vertical winds and vertical wind variability. In this study we investigate potential biases in vertical wind estimation that are intrinsic to the meteor radar observation geometry and scattering mechanism, and we introduce a mathematical debiasing process to mitigate them. This process makes use of …

Keys To Genus Of Calanoid Copepods Of China Seas, Chang-Tai Shih, Qing-Chao Chen, Yang-Chi Lan, Shih-Hui Hsiao, Chi-Yu Weng

Journal of Marine Science and Technology–Taiwan

No abstract provided.

Calanoid Copepods Of China Seas, Chang-Tai Shih, Qing-Chao Chen, Yang-Chi Lan, Shih-Hui Hsiao, Chi-Yu Weng

Journal of Marine Science and Technology–Taiwan

Calanoid copepods are a well-recognized taxonomic group of Crustacea. They were already placed, with one cyclopoid (Scribella) and five calanoid (Acartia, Calanus, Candacia, Euchirus (= Euchaeta), and Pontella) genera, under a single taxonomic unit, the Calanidae, by Dana [1]. Giesbrecht and Sars are the two early principal contributors to the taxonomy of Copepoda, including the Calanoida.

Based on the location of the body articulation, Giesbrecht [2] divided copepods into two groups, the Gymnopleoden and Podopleoden. All copepods, characterized by an articulation between the fifth pedigerous (leg-bearing) somite and genital somite, separating the body into an anterior part (prosome) and a …

Calanoid Copepods Of China Seas-Introduction And Acknowledgement, Chang-Tai Shih, Qing-Chao Chen, Yang-Chi Lan, Shih-Hui Hsiao, Chi-Yu Weng

Journal of Marine Science and Technology–Taiwan

No abstract provided.

Climate Change And The Threat To U.S. Jails And Prisons, Laurie L. Levenson

Villanova Environmental Law Journal (1991 - )

No abstract provided.

Evidence For The ~ 1.4 Ga Picuris Orogeny In The Central Colorado Front Range, Asha A. Mahatma, Yvette D. Kuiper, Christopher S. Holm-Denoma

United States Geological Survey: Staff Publications

We present the first evidence for sedimentation and new evidence for penetrative deformation and metamorphism in the central Colorado Front Range associated with the ~ 1.48–1.35 Ga Picuris orogeny. This orogeny has recently been recognized in New Mexico, Arizona and southern Colorado and may be part of a larger active accretionary margin that includes the ~ 1.51–1.46 Ga Pinware and Baraboo events, in eastern Canada and central US respectively, that preceded the amalgamation of the Rodinian supercontinent. We demonstrate that in addition to ~ 1.4 Ga reactivation of northeast-trending Paleoproterozoic shear zones, regional folding occurred in an area south of …