Variability Of Usa East Coast Surface Total Alkalinity Distributions Revealed By Automated Instrument Measurements, 2021 University of New Hampshire
Variability Of Usa East Coast Surface Total Alkalinity Distributions Revealed By Automated Instrument Measurements, Christopher W. Hunt, Joseph Salisbury, Douglas Vandemark, Steffen Aßmann, Christopher Melrose, Rik Wanninkhof, Kumiko Azetsu-Scott
Seawater total alkalinity (TA) is one important determinant used to monitor the ocean carbon cycle, whose spatial distributions have previously been characterized along the United States East Coast via discrete bottle samples. Using these data, several regional models for TA retrievals based on practical salinity (S) have been developed. Broad-scale seasonal or interannual variations, however, are not well resolved in these models and existing data are highly seasonally biased. This study reports findings from the first long duration deployment of a new, commercially available TA titrator aboard a research vessel and the continuous underway surface TA measurements produced. The instrument ...
Ultrahigh Resolution Ote-Ms Data For Wildfire-Influenced Tar Ball Aerosol From The Pacific Northwest, 2021 Michigan Technological University
Ultrahigh Resolution Ote-Ms Data For Wildfire-Influenced Tar Ball Aerosol From The Pacific Northwest, Matthew Brege, Simeon Schum, Lynn Mazzoleni
Michigan Tech Research Data
This dataset and the methods used to obtain it were described in "Extreme molecular complexity resulting in a continuum of carbonaceous species in biomass burning tar balls from wildfire smoke" submitted to ACS Earth and Space Chemistry in May of 2021. Briefly, two samples of ambient aerosol were collected in the Pacific Northwest of the United States in 2017 which were heavily influenced by atmospheric tar balls. The acetonitrile soluble extracts of the aerosol filters were analyzed using ultrahigh resolution Orbitrap mass spectrometry (OTE-MS) using positive and negative modes of electrospray ionization as well as atmospheric pressure photoionization, for a ...
Effects Of The Transportation And Climate Initiative On The Maine Economy: An Analysis Of Cap-And-Invest And Its Heterogeneous Impacts On Rural And Urban Households, William L. Somes
In December 2020, a memorandum of understanding (MOU) was released by the Transportation and Climate Initiative Program (TCI-P), a collaboration of 13 jurisdictions in the New England and Mid-Atlantic regions of the United States. Modeled on the Regional Greenhouse Gas Initiative (RGGI), the TCI-P follows a cap-and-invest framework to reduce emissions from the transportation sector by 26% from 2022 to 2032. Since the TCI-P is expected to raise the price of gasoline by 5¢ to 9¢ per gallon, there has been concern that some populations may be disproportionately affected. The present research studies the potential heterogeneous impacts of the TCI-P ...
Isolated Point Discharges Into Coastal Swashes As Nutrient Sources To Coastal Waters, 2021 Coastal Carolina University
Isolated Point Discharges Into Coastal Swashes As Nutrient Sources To Coastal Waters, Mary E. Olsen
Coastal water quality in the Grand Strand of South Carolina is directly influenced by human activities. Nutrient-rich runoff, stemming from numerous anthropogenic sources, finds its way into coastal waters through freshwater inputs often through tidal creeks, termed swashes. In order to better describe the amount of nutrient inputs into Singleton Swash and White Point Swash, we examine anthropogenic runoff from isolated identifiable point discharges and their nutrient concentrations. We report concentrations of dissolved inorganic nitrogen (DIN, as the sum of nitrate, nitrite and ammonium) and phosphate in discharge and creek water. We hypothesize that nutrient concentrations of isolated, minor point ...
Organic Matter Spatial And Temporal Patterns In Coastal Sands Of Long Bay, South Carolina, 2021 Coastal Carolina University
Organic Matter Spatial And Temporal Patterns In Coastal Sands Of Long Bay, South Carolina, Kayla B. Christofferson
Sandy coastlines serve crucial functions to coastal economies and coastal ecology alike. In the past, organic-poor sands were considered of lower importance than organic-rich muds. Recent studies showed that sands’ low organic matter concentrations are due to high biogeochemical cycling rates, driven by rapid physical exchange, but remain infrequently studied. I present time-series of sand mass-loss-on-ignition (LOI, an organic matter proxy) profiles from February 2017 onwards at multiple sites along Long Bay, South Carolina. LOI profiles exhibit subsurface maximum values, unlike the typical decrease with depth in muddy sediments. I hypothesize that organic matter distribution with depth is affected by ...
Remote Ocean Forcing On Interannual-To-Decadal Climate Variability Through Inter-Basin Interactions, 2021 Utah State University
Remote Ocean Forcing On Interannual-To-Decadal Climate Variability Through Inter-Basin Interactions, Zachary F. Johnson
All Graduate Theses and Dissertations
This dissertation explores the connection between ocean basins through the atmosphere by employing observational data analyses and a climate modeling approach. Sea surface temperature changes in the tropical Pacific, known as the El Niño Southern Oscillation, can influence worldwide weather and sea surface temperatures in other ocean basins. For instance, tropical Pacific sea surface temperatures can impact the Atlantic and Indian Oceans through airflow changes along the equator. However, Atlantic and Indian Ocean sea surface temperature changes can also influence the tropical Pacific through similar processes. Therefore, it is challenging to identify the mechanisms of these remote connections between ocean ...
Formation Of Oil-Particle-Aggregates: Numerical Model Formulation And Calibration, 2021 Virginia Institute of Marine Science
Formation Of Oil-Particle-Aggregates: Numerical Model Formulation And Calibration, Linlin Cui, Courtney K. Harris, Danielle R.N. Tarpley
When oil spills occur in turbid waters, the oil droplets and mineral grains can combine to form oil-particle aggregates (OPAs). The formation of OPAs impacts the vertical transport of both the oil and the mineral grains; especially increasing deposition of oil to the seabed. Though the coastal oceans can be very turbid, to date, few numerical ocean models have accounted for aggregation processes that form OPAs. However, interactions between oil and mineral aggregates may be represented using techniques developed to account for sediment aggregation. As part of Consortium for Simulation of Oil Microbial Interactions in the Ocean (CSOMIO), we modified ...
A Comparison Of The Localized Aviation Mos Program (Lamp) And Terminal Aerodrome Forecast (Taf) Accuracy For General Aviation, 2021 Embry Riddle Aeronautical University
A Comparison Of The Localized Aviation Mos Program (Lamp) And Terminal Aerodrome Forecast (Taf) Accuracy For General Aviation, Douglas D. Boyd, Thomas A. Guinn
Journal of Aviation Technology and Engineering
Background. For general aviation (GA) pilots, operations in instrument meteorological conditions (IMC) carry an elevated risk of a fatal accident. As to whether a general aviation flight can be safely undertaken, aerodrome-specific forecasts (TAF, LAMP) provide guidance. Although LAMP forecasts are more common for GA-frequented aerodromes, nevertheless, the FAA recommends that for such aerodromes (and for which a TAF is not issued) the airman uses the TAF generated for the geographically closest airport for pre-flight weather evaluation. Herein, for non-TAF-issuing airports, the LAMP (sLAMP) predictive accuracy for visual (VFR) and instrument (IFR) flight rules flight category was determined.
Method. sLAMP ...
Anatomy Of A Conspiracy Theory: Law, Politics, And Science Denialism In The Era Of Covid-19, 2021 Texas Tech University School of Law
Anatomy Of A Conspiracy Theory: Law, Politics, And Science Denialism In The Era Of Covid-19, Brie Sherwin
Texas A&M Law Review
With COVID-19, we are facing the most serious public health threat of our lifetime. Now, more than ever, we need experts and sound scientific advice to guide critical decision-making during the pandemic. With conspiracy theories and other similar rhetorical weapons being used to discredit our scientific experts, we face a myriad of misinformation, mistruths, and all-out attacks on our experts, breeding distrust between the public and the policymakers leading the fight against the pandemic. As President Trump took office, scientists were routinely denigrated and isolated. Furthermore, science denialism has permeated its way up to the highest levels of government, resulting ...
Atmospheric River Case Studies In The U.S. Mid-Atlantic Region, 2021 Susquehanna University
Atmospheric River Case Studies In The U.S. Mid-Atlantic Region, Jonathan Lewis
Senior Scholars Day
Atmospheric Rivers (ARs) are narrow bands of atmospheric moisture that bring a significant amount of precipitation to the impacted region. While ARs on the West Coast of the United States are more frequently analyzed, evaluation of the East Coast mid-Atlantic region is also important in understanding this phenomenon. East Coast ARs can be studied using the techniques already established to study West Coast ARs. Using 6-hourly MERRA-2 data with integrated water vapor transport (IVT) and integrated water vapor (IWV) thresholds, we developed an extended scale to account for the longer duration ARs that occur, an algorithm to study AR events ...
Analysis Of Winter Weather Conditions And Their Relationship To Crashes In Nebraska, 2021 University of Nebraska-Lincoln
Analysis Of Winter Weather Conditions And Their Relationship To Crashes In Nebraska, John Cecava
Dissertations & Theses in Earth and Atmospheric Sciences
Adverse weather conditions: such as changes in visibility, precipitation, wind speed, temperature, and road surface conditions, substantially impact highway and interstate safety. Therefore, an investigation into the winter weather conditions during highway and interstate crashes in Nebraska was conducted. Crash data were obtained from the Nebraska Department of Transportation (NDOT) for the years 2008 to 2018. In order to separate the non-winter weather related crashes and the winter weather related crashes, six filtrations were applied to make this possible. These filters were based on a few crash parameters: road classification, alcohol, and crash severity, and weather parameters within the crash ...
Impact Of Hurricane Michael (2018) On Local Vertical Total Electron Content, 2021 Air Force Institute of Technology
Impact Of Hurricane Michael (2018) On Local Vertical Total Electron Content, Joanna E.S. Williams, Robert C. Tournay, H. Rose Tseng, Daniel J. Emmons Ii, Omar A. Nava
An analysis of vertical total electron content (TEC) estimates from the MIT Madrigal database is performed for the regions surrounding the eye of Hurricane Michael (2018). Absolute and detrended TEC values show a noticeable increase during the tropical cyclone (TC) relative to fluctuations at the same locations prior to the storm. Direct comparisons of TEC perturbation magnitudes to the number of lightning flashes in latitude-longitude boxes surrounding the eye of Hurricane Michael for each 5 min period of 10 October 2018 showed no visible trends. A similar comparison of the vertical TEC fluctuations with respect to the rainfall rates showed ...
Drought-Induced Biomass Burning As A Source Of Black Carbon To The Central Himalaya Since 1781 Ce As Reconstructed From The Dasuopu Ice Core, Joel D. Barker, Susan Kaspari, Paulo Gabrielli, Anna Wegner, Emilie Beaudon, M. Roxana Sierra-Hernández, Lonnie Thompson
Geological Sciences Faculty Scholarship
Himalayan glaciers are melting due to atmospheric warming, with the potential to limit access to water for more than 25 % of the global population that resides in these glacier meltwater catchments. Black carbon has been implicated as a factor that is contributing to Himalayan glacier melt, but its sources and mechanisms of delivery to the Himalayas remain controversial. Here, we provide a 211-year ice core record spanning 1781–1992 CE for refractory black carbon (rBC) deposition from the Dasuopu glacier ice core that has to date provided the highest-elevation ice core record (7200 m). We report an average rBC concentration ...
Air Temperature Prediction Using Different Datamining Approaches In Sulaymaniyah City In Iraq, 2021 Kurdistan Technical Institute, Sulaymaniyah
Air Temperature Prediction Using Different Datamining Approaches In Sulaymaniyah City In Iraq, Yusra Mohammed Mohammed Salih, Sherko Murad, Brzu Tahir
Climate change has a historical impact at universal and local levels over the past era. Climate change is one of the greatest challenge issues in the globe for meteorological research. Air temperature estimation, in particular, has been measured as a significant feature in weather impression studies on industrial sectors, environmental, ecological, and agricultural. Accurately predicting air temperature guides to measure lifestyle, perform a key character for the government, industries, and public in development activities. In this paper, we investigate the use of various data mining approaches such as Support Vector Machine (SVM), Decision tree (DT), and Naïve Bayes for air ...
Data Supporting The Paper "Is The Water Vapor Supersaturation Distribution Gaussian?", 2021 Michigan Technological University
Data Supporting The Paper "Is The Water Vapor Supersaturation Distribution Gaussian?", Subin Thomas, Prasanth Prabhakaran, W. Cantrell, Raymond Shaw
Michigan Tech Research Data
The data in this file are from the MTU Pi Cloud Chamber and large eddy simulations. This work was supported by NSF grant AGS-1754244. Data are made available in support of the above publication by Thomas et al.. For any further use, e.g., for publication elsewhere, the authors should be contacted to ensure the appropriate use of the data and proper acknowledgment.
Weather And Climate Summary And Forecast: April 2021 Report, 2021 Linfield University
Weather And Climate Summary And Forecast: April 2021 Report, Gregory V. Jones
Linfield University Wine Studies Reports
This report provides a summary of the weather and climate forecast for April 2021. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.
Vims Ferry Pier Ambient Water Monitoring And Meteorological Data, Six-Minute Data 1986-2003, 2021 Virginia Institute of Marine Science
Vims Ferry Pier Ambient Water Monitoring And Meteorological Data, Six-Minute Data 1986-2003, Gary F. Anderson
Bulk water parameters of Temperature and Salinity were measured at the VIMS Ferry Pier from 1947 to 2003. Initial methods were undocumented but likely automated with an instrument and chart recorder since the data consists of a daily high and low measurement from which a mean value was derived. Beginning in 1986 an Inter-Ocean CTD instrument placed at mid-depth was interfaced to a digital data logger (Campbell Scientific CRJ) that recorded data every six minutes, resulting in 240 measurements per day.
This collection contains only the six-minute data from 1986 through 2003. Weather parameters were also added in 1986 and ...
Circulation, Volume 26, No.2, 2021 Old Dominion University
Circulation, Volume 26, No.2, Center For Coastal Physical Oceanography, Old Dominion University
Spring 2021 issue of CCPO Circulation featuring the article, "Reconciling Models and Everyday Life," by Pierre St-Laurent.
Eas 250: Oceanography, 2021 City University of New York (CUNY)
Eas 250: Oceanography, Cuny School Of Professional Studies
Open Educational Resources
Oceanography is an interdisciplinary field studying the processes and interrelationships of geology, chemistry, geography, geophysics, meteorology, and biology. This course focuses on how scientific processes and scientific understanding are applied to questions such as: Which factors control life in the ocean? How do we know what we know about the ocean? What's at the bottom of the ocean? How does the water in the ocean move? How are human activities and climate change altering the ocean? Oceanographic data is used to understand the ocean and its interactions with the rest of the planet.
This course is based in part ...
Mechanisms Driving Decadal Changes In The Carbonate System Of A Coastal Plain Estuary: Associated Dataset, 2021 Virginia Institute of Marine Science
Mechanisms Driving Decadal Changes In The Carbonate System Of A Coastal Plain Estuary: Associated Dataset, Fei Da, Marjorie A.M. Friedrichs, Pierre St-Laurent
This dataset includes model outputs presented in the associated publication (Da et al. 2021, Journal of Geophysical Research: Oceans). This study used a three-dimensional ecosystem model to quantify the relative impacts of multiple anthropogenic drivers on the Chesapeake Bay carbonate system over the past three decades. Model simulations highlight that increased atmospheric CO2 concentrations and decreased terrestrial nutrient inputs are two primary drivers causing nearly equal reductions in pH in surface waters of the Bay.