Oceanography and Atmospheric Sciences and Meteorology Commons^™

Investigating Small-Scale Dynamical Features In The Mesopause Region, Deepak B. Simkhada

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utilizing analyses of observational data, we performed a detailed study to investigate short-period atmospheric gravity waves and ripples, and instabilities in the mesopause region. Recent coordinated measurements from Haleakala Observatory, Maui, HI via airglow wave imaging, meteor wind radar, and Na wind temperature lidar have provided a unique dataset for this study. Gravity waves generated in the lower atmosphere propagate energy upwards into the mesosphere and lower thermosphere region where they modulate the airglow emissions, and later break and deposit their momentum, causing significant perturbations in winds and temperatures. Ripples, on the other hand, are likely generated by localized shear …

Assessment Of Impacts To Hydroclimatology And River Operations Due To Climate Change Over The Colorado River Basin, William Paul Miller

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation investigated the impacts of climate change to the hydroclimatology and river and reservoir management operations within the Colorado River Basin. Preliminary research indicated observed warming trends throughout the Colorado River Basin and corresponding seasonal trends to the magnitude and timing of runoff in the Colorado River Basin. Subsequent research investigated the changing character of precipitation and corresponding impacts to streamflow over the Colorado River Basin. Analysis of snowpack telemetry (SNOTEL) stations over the American West and Colorado River Basin indicated decreasing trends in annual snowpack, often at least at the 95% confidence interval. A shorter snowpack season was …

Lsuhsc Facilities Daily Update: May 2010, Lsuhsc Property And Facilities Management

LSUHSC Facilities Daily Updates: 2010

LSUHSC Facilities Daily Updates from May 2010.

These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.

Lsuhsc Facilities Biweekly Update: May 2010, Lsuhsc Property And Facilities Management

LSUHSC Facilities Biweekly Updates: 2010

LSUHSC Facilities Biweekly Updates from May 5 and 21, 2010.

These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.

Citrate Synthase And The Visual Interactions Hypothesis, Kristina Camarena

Senior Honors Projects

It has been shown that the metabolic rates of deep-living species of particular pelagic groups are significantly lower than those that live closer to the surface in the water column. Various theories as to why have been presented, including the visual interactions hypothesis, which states that because there is a greatly minimized ability to visually interact in the light-limited deep, predators have a reduced need for high metabolic rates because they do not actively go after their prey. Citrate synthase is a mitochondrial enzyme found at the beginning of the citric acid cycle, which plays an integral role in cellular …

Intercomparison Of Prism And Daymet Temperature Interpolation From 1980 To 2003, Rebecca A. Scully

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As ecosystem modeling becomes increasingly integrated with Geographic Information Systems (GIS) there is a rise in demand for spatially and temporally continuous meteorological data. But in order to justify management decisions or to provide robust scientific insights, the accuracy of meteorological data used as model input must be thoroughly quantified. Current methods to create spatially continuous climate data from discrete weather station data include inverse distance weighting, geostatistical techniques such as kriging and splines, local regression models such as Parameter-Elevation Regression on Independent Slope Model (PRISM) and Daymet, and regional regression models. For the conterminous United States, PRISM and Daymet …

Field And Smog Chamber Studies Of Agricultural Emissions And Reaction Products, Derek J. Price

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Agricultural emissions are an important contributor to atmospheric aerosol. These emissions include nitrogen containing organic compounds, primarily as amines, which have not been well investigated to date. Although there have been several studies that have looked at the emission of gas phase amines, there are only a few studies that have focused on ambient amine-based aerosol. There have also only been a handful of smog chamber studies that have investigated amine aerosol chemistry. Kinetic studies have looked at the reactions of amines with OH and ozone. However, amine reactions with nitrate radical (NO₃) are not well understood. Several …

Evapotranspiration Of Kentucky Bluegrass, Lynda L. Fenton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rapid population growth in arid regions of the western US is placing increased demand on water resources. Variability in precipitation and common occurrence of drought have promoted scrutiny of water use in urban lawns and gardens. However, few reliable measurements of water use of these landscapes exist. Quantifying the amount of water used vs. required by landscapes such as turfgrass would allow significant water conservation. Evapotranspiration (ET) is affected by biophysical factors such as: available energy, turbulent mixing, saturation deficit, soil water, and stomatal conductance. In order to simulate the water use by turfgrass, the relative importance of these processes …

Impact Of Mineral Dust On Nitrate, Sulfate, And Ozone In Transpacific Asian Pollution Plumes, T D. Fairlie, D J. Jacob, Jack E. Dibb, B Alexander, M A. Avery, Aaron Van Donkelaar, L Zhang

Earth Sciences

We use a 3-D global chemical transport model (GEOS-Chem) to interpret aircraft observations of nitrate and sulfate partitioning in transpacific dust plumes during the INTEX-B campaign of April–May 2006. The model includes explicit transport of size-resolved mineral dust and its alkalinity, nitrate, and sulfate content. The observations show that particulate nitrate is primarily associated with dust, sulfate is primarily associated with ammonium, and Asian dust remains alkaline across the Pacific. This can be reproduced in the model by using a reactive uptake coefficient for HNO₃ on dust (γ(HNO₃) ~10⁻³) much lower than commonly assumed in …

Transplantation And Parrotfish Predation: A Study On Small Siderastrea Siderea Colonies Offshore Broward County, Fl Usa, Allison S. Brownlee

HCNSO Student Theses and Dissertations

With increasing coastal development along southeastern Florida, nearshore coral reef communities are at an increased risk from anthropogenic impacts. Impact minimization and mitigation efforts associated with permitted coastal construction activities generally exclude nearshore small (< 10 cm diameter) Siderastrea siderea colonies from required coral transplantation due to an assumed high colony mortality associated with transplanting small stony corals. This study evaluated the efficacy of transplanting these small colonies by monitoring survival, growth, and zooxanthellae density post transplantation to an offshore reef area. Unexpected observations of parrotfish predation on the newly transplanted corals were made within the first 24 hours. Within 2 weeks, 94% …

Influence Of Canopy Cover, Nutrients, And Season On Stoichiometric Variation Of Epilithon In Neotropical Streams., Tyler J. Kohler

School of Natural Resources: Dissertations, Theses, and Student Research

Light and nutrient availability are strong factors determining the nutrient composition of epilithon in temperate stream ecosystems. However, little work has been performed regarding this association in tropical streams. In our study, we investigated 1) how gradients of canopy cover and nutrients and 2) wet/dry seasonality influence epilithon standing stocks and nutrient quality. We surveyed 18 stream locations within six watersheds that varied in nutrient and light conditions during both the wet and dry seasons on the island of Trinidad to test these questions. Additionally, we sampled four stream reaches bimonthly for three years, thinning the canopy of two of …

Trends In Climate Change Education In Nevada's System Of Higher Education, Amy Northrup

Graduate Research Symposium (2010 - 2017)

This poster presents research into how climate change is taught in Nevada's colleges and universities. A completed inventory of the types of courses in different disciplines and at different institutions that relay information about climate change to students is discussed.

Coherence Between The Great Salt Lake Level And The Pacific Quasi-Decadal Oscillation, Shih-Yu (Simon) Wang, Robert R. Gillies, Jiming Jin, Lawrence E. Hipps

Plants, Soils, and Climate Faculty Publications

The lake level elevation of the Great Salt Lake (GSL), a large closed basin lake in the arid western United States, is characterized by a pronounced quasi-decadal oscillation (QDO).The variation of the GSL elevation is very coherent with the QDO of sea surface temperature anomalies in the tropical central Pacific (also known as the Pacific QDO). However, such coherence denies any direct association between the precipitation in the GSL watershed and the Pacific QDO because, in a given frequency, the precipitation variation always leads the GSL elevation variation. Therefore, the precipitation variation is phase shifted from the Pacific QDO. This …

Sfa Weather Station-April 2010, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University

Weather Station Data

No abstract provided.

Fun, Fun, Fun Till The Waters Take The Beaches Away, Briana Ellis

Maria Dittman Library Research Competition: Student Award Winners

No abstract provided.

Sustainable Portland: Implementation Series 3, New England Environmental Finance Center

Climate Change

This report is the third in a series of efforts by students at the Muskie School of Public Service, Community Planning and Development Master’s program, in a core class called “Sustainable Communities.” In this course students seek to understand principles of sustainability and how efforts to implement Sustainability programs can become more successful. The report assembles term papers students completed on particular efforts by municipalities, universities, and other groups to achieve sustainability goals. Students worked on each project in a service learning format with real world clients. They were asked to fashion their papers around lessons learned by other organizations …

Corrections To The Paper "Phytoplankton Productivity In The Tidal Regions Of Four Chesapeake Bay (Usa) Tributaries." Virginia Journal Of Science. 2007 58(4): 191-204, By K. K. Nesius, H. G. Marshall, And T.A. Egerton

Virginia Journal of Science

Necessary corrections associated with the paper "Phytoplankton productivity in the tidal regions of four Chesapeake Bay (USA) tributaries", originally published in Virginia Journal of Science Volume 58, Number 4, pages 191-204, in 2007, by K.K. Nesius, H.G. Marshall, and T.A. Egerton.

Information Technology Implementation Decisions To Support The Kentucky Mesonet, D. Michael Grogan

Masters Theses & Specialist Projects

The Kentucky Mesonet is a high-density, mesoscale network of automated meteorological and climatological sensing platforms being developed across the commonwealth. Data communications, collection, processing, and delivery mechanisms play a critical role in such networks, and the World Meteorological Organization recognizes that “an observing system is not complete unless it is connected to other systems that deliver the data to the users.” This document reviews the implementation steps, decisions, and rationale surrounding communications and computing infrastructure development to support the Mesonet. A general overview of the network and technology-related research is provided followed by a review of pertinent literature related to …

Droughtscape, Spring 2010, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

NDMC and NC Drought Council Team Up

Drought to Intensify in Northwest and Hawaii

International Work

Impacts Recorded in Hawaii and Western States

U.S. Drought Monitor Archives Enhanced

Low-Water Impact Surveys Completed

K-12 Drought Outreach

The Impact Of Community Consultation To Set Resource Condition Targets For Dryland Salinity, Rebecca Heath, Susan Murphy-White, Jamie Bowyer

Resource management technical reports

No abstract provided.