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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Ocean transport of heat is a substantial component of the climate system but its characteristics and dynamic causes are still somewhat unknown. Prior research has shown that global observations from the ocean and atmosphere indicate that...
Two major thrust systems are located along the eastern Blue Ridge â western Blue Ridge boundary in the Alabama and Georgia Appalachians. The pre-metamorphic Hillabee thrust is near the trailing edge of the Talladega belt thrust sheet...
The Florida Big Bend region in the northeastern Gulf of Mexico contains both spawning sites and nursery habitats for a variety of economically valuable marine species. One species, the gag grouper (Mycteroperca microlepis), relies on the...
A large fraction of the continental shelf is covered by permeable sediments that are flushed by wave, wind, and tide generated bottom currents. Elevated dissolved organic carbon (DOC) concentrations in coastal zones, a diverse and...
The deep-sea, soft-bottom habitat is considered the largest ecosystem on Earth, yet little is known about the biogeography of the infauna. This dissertation examines the species' ranges of the meiofaunal taxon Harpacticoida (Crustacea:...
Ice clouds play an important role in earth radiation balance by reflecting solar and absorbing thermal radiation, the so-called albedo versus greenhouse eects, which cause signicant dierential atmospheric heating and cooling in...
Understanding and predicting the evolution of the tropical cyclone (TC) inner-core continues to be a major research focus in tropical meteorology. Eyewall slope and its relationship to intensity and intensity change is one example that...
The land/sea warming contrast being greater than unity is a well-known phenomenon in response to anthropogenic radiative forcing. The land/sea surface warming asymmetry is essentially a result of the differing surface and boundary layer...
Seamounts are one of the largest biomes on earth, yet remain one of the least explored. They are known to be centers of increased biomass, species richness, endemism and speciation as well as areas of distinct community structure, as...
Satellite data is compared to objectively analyzed wind data from the Hurricane Research Division's H*Wind software to attempt to quantify the value that satellite data could bring to the objective analysis. Previous research (DiNapoli...
Nitrogen (N) is often a limiting nutrient for primary productivity in the ocean and plays a critical role in the global carbon cycle. Fixation of N2 into reactive N (Nr) by photosynthetic prokaryotes in surface waters is a primary source...
In this study, we have diagnosed diabatic heating, meridional adiabatic mass and angular momentum transport, and downward transfer of westerly angular momentum by the pressure torque in isentropic coordinates using daily NCEP-NCAR...
The Tongue of the Ocean (TOTO) region located within the Bahamas archipelago is a relatively under-studied region in terms of both its biological and physical oceanographic characteristics. This region is comprised of a deep trough along...
ABSTRACT This work presents turbulence data collected in the Gulf of Mexico in an attempt to quantify the source or sources of turbulent dissipation along the continental shelf and any possible causes for its seasonal change. In addition...
The geostationary satellite television (TV) signals that are reflected off the ocean surfaces could enter the AMSR-E antenna, resulting in RFI (Radio Frequency Interference) contamination in AMSR-E 10.65 and 18.7 GHz channels. If not...
Late Quaternary Evolution of the Northwest Florida Coast and Margin: Development of a Conceptual Model for Identifying and Characterizing Shelf Sediment Deposits
The objective of this investigation was the interpretation of the late Quaternary history of the northwest Florida margin and the development of a conceptual model for understanding the late Quaternary evolution of the regional coast and...
Anthropogenic emissions are transported both locally and globally. Depending on the magnitude of the transport, the emissions can have varying impacts on air quality and atmospheric chemistry. Transport occurs most efficiently if...
Determining the Characteristics of Anvil and Thunderstorm Lightning for Use in the Lightning Launch Commit Criteria at Cape Canaveral Air Force Station and Kennedy Space Center
The 45th Weather Squadron (45WS) provides weather support to America's space program at Florida's Cape Canaveral Air Force Station (CCAFS), Kennedy Space Center (KSC), and Patrick Air Force Base (PAFB). Since CCAFS/KSC lies within...
The growth of a locally isolated strain of green algae, Chlorella sp., selected for its promise as a biodiesel feedstock, was studied in wastewater effluent from the municipal wastewater treatment plant in Tallahassee FL. Nutrient...
The sporadic nature of lightning in tropical cyclones (TCs) is a topic of great interest to researchers and forecasters. This study explores relationships between lightning, cloud microphysics, and TC storm structure in rapidly...
This study presents a new algorithm to dealias folded Doppler velocities in S, C, and X-Band radars using a new boundary detection technique on the raw velocity field as a whole, rather than the traditional gate by gate methodology used...
The Cartersville area in Georgia lies at the junction between the Alabama Recess and the Tennessee Salient. The rocks here are the easternmost exposures in the foreland fold and thrust belt of the southern Appalachians. It is bounded to...
In the uppermost millimeters of shallow marine sands, photosynthesis by microalgae can cause oxygen supersaturation, leading to formation of oxygen bubbles and subsequent ebullition of the gas from the sediment. The role of ebullition...
Nitrates (NO3- ) are one of the principal contaminants in ground water. Excess nitrate in ground water is known to cause serious illnesses such as methemoglobinemia, and cancer. In addition to the adverse impact on the health of humans, ...
Calcareous Nannoplankton as Paleoceanographic and Biostratigraphic Proxies: Examples from the Mid-Cretaceous Equatorial Atlantic (ODP Leg 207) and Pleistocene of the Antarctic Peninsula (NBP0602A) and North Atlantic (IODP Exp. 306)
This dissertation is a collection of three projects utilizing calcareous nannoplankton as biostratigraphic and paleoceanographic indicators. The materials studied come from three locations: 1) Ocean Drilling Program (ODP) Leg 207 (Site...
Rates of U(VI) release from two field-aggregated and contaminated composite sediments were collected from the seasonally saturated lower vadose zone of the US Hanford 300 Area were examined in stirred flow-cell reactors. Kinetic U(VI)...
The Asian summer monsoon is a dominant feature of the global circulation. The upper-level anticyclone (ULAC) associated with the Asian summer monsoon circulation stands out vividly in satellite observations of trace gases. The ULAC also...
In the Gulf of Mexico, barrier islands absorb the majority of the wind and wave action from storms, resulting in modification of dune morphology and vegetation dynamics. Understanding changes in dune vegetation in response to storms can...
The isotopic composition of species-specific atmospheric mercury (Hg) was investigated in the coastal environment of Grand Bay, Mississippi, USA. Hg0(g), HgII(g) and Hg(p) were concurrently separated and collected, and subsequently...
Calcareous nannofossils are used as biostratigraphic indicators integral for age control in both petroleum industry and academic settings. The Oligocene and Late Cretaceous are especially problematic for nannofossil biostratigraphers due...
ABSTRACT High-resolution biostratigraphic data were collected from two cores drilled in 2007 and 2009 by the United States Geological Survey at the South Dover Bridge (SDB) and the Cambridge-Dorchester (Cam-Dor) Airport in eastern...
Improving lightning cessation forecasts is important to operations of the 45th Weather Squadron (45WS) at Kennedy Space Center (KSC). If lightning advisories can be cancelled closer to the time that cessation actually occurs without...
Tropical cyclogenesis in the eastern North Pacific (EPAC) basin is related to gap-wind-induced vorticity, the monsoon trough, and the intertropical convergence zone (ITCZ). There are several gaps in the Central American Mountains, on the...
Community Structure of Benthic Invertebrates on Necker Ridge in the North Pacific: Distribution, Diversity, and Preliminary Comparison to the Hawaiian Archipelago
In shallow water the Hawaiian Archipelago is one of the most isolated archipelagos in the world, but at depth it may be connected to the vastly understudied seamount-rich region of the central and western Pacific by Necker Ridge, an...
Salt marshes provide an important habitat for animals and food for fish, shellfish, birds and mammals. They also serve as a breeding ground and nursery for numerous species. The value of salt marshes lies in the benefits that it provides...
Wildfires have a great impact throughout the atmosphere, particularly in the surface and boundary layers. The magnitude of heat flux and turbulence generated by the spread of these fires is relatively large and has scarcely been...
In this study, a laboratory analog is used to simulate the conduit and matrix domains of a Karst aquifer. The conduit domain is located at the bottom of the transparent plexiglas laboratory analog and glass beads occupy the remaining...
The Gulf of Mexico is among the most populated of coastlines threatened by tropical cyclones and has experienced some of the most destructive hurricanes in history. The importance of the warm ocean waters of the Gulf in providing optimal...
A hypothesis by Maul [1977], stating the rate of change of Loop Current (LC) volume is related to deep Yucatan Channel (YC) transport, is examined and validated with a continuous 54-year simulation of the regional 1/25˚ Gulf of Mexico ...
Indications of climatic warming are expected to be greatest over high latitudes and high altitudes, the regions where the cyrosphere is present. Mountain glaciers, in particular, can be an early detector for man-induced climate change, ...
While both computer model and official track forecasts of Atlantic Basin hurricanes have improved significantly over the past several decades, forecasts of intensity continue to prove difficult. Even specialized hurricane models struggle...
During the past two decades, the accuracy of rainfall retrieval based on passive microwave observations has been greatly improved, particularly over ocean. However, rainfall retrieval over land remains to be problematic. The objective of...
Initializing Coupled General Circulation Models (CGCMs) for routine seasonal ENSO prediction is currently an onerous task. This is one of the main reasons on why the CGCMs participating in the Coupled Model Intercomparison Project 5 ...
Located in West Central Florida, Plant City is an agriculturally dominated region, growing strawberries and citrus. Due to temperatures during winter months, when they often fall below freezing, farmers in the area must use freeze...
A local, regime-dependent cloud mask (CM) algorithm is developed for isolating cloud-free pixels from cloudy pixels for Geostationary Operational Environmental Satellite (GOES) imager radiance assimilation using mesoscale forecast models...
The structure of a tropical cyclone (TC) is a spatial representation of its organizational pattern and distribution of energy acquisition and release. This fingerprint depicts a specific phase in the TC's meteorological lifecycle, ...
To avoid unfavorable seasonal conditions, some species of calanoid copepods produce resting eggs that do not immediately hatch. When buried in the sediment, these eggs can remain viable from weeks to years, and therefore can represent a...
A major theme of recent research is the investigation of the nature of climate variability and the current capability to measure, model, and predict it. This is a formidable task that involves understanding complex interactions and...
Abstract Photographic transects were taken in 2009 and 2010 on the VK826, VK906 and GB535 lease blocks to quantify the amount of the seafloor covered by living or dead colonies of the deep-sea coral L. pertusa, as well as species...
The impact of Stokes drift, a wave-driven mechanism of mass transport, is investigated for surface oil movement in the Gulf of Mexico. Stokes drift was neglected in trajectory forecasts in the Gulf during the Deepwater Horizon oil spill....
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
