The Reliability And Skill Of Air Force Weather’S Ensemble Prediction Suites,
2016
Air Force Institute of Technology
The Reliability And Skill Of Air Force Weather’S Ensemble Prediction Suites, Derek A. Burns
Theses and Dissertations
The Ensemble Prediction Suites (EPS) used at the 557th Weather Wing (557 WW) provide probability based forecasts for thousands of worldwide locations. Point Ensemble Probability (PEP) bulletins are tailored specifically to the United States military and its criteria for operationally significant weather. This study assesses the performance of PEPs from each EPS at 17 Continental United States (CONUS) locations. Results from April to October of 2015 show that each EPS is underforecasting ceilings and visibility for most forecast hours at several locations. The underforecasting of ceilings is most severe at Vandenberg AFB, an area prone to frequent marine layer fog …
Forecasting Sea Breeze Enhanced Thunderstorms At Eglin Air Force Base: A Comparison Between Empirical Methods And The High Resolution Rapid Refresh Model,
2016
Air Force Institute of Technology
Forecasting Sea Breeze Enhanced Thunderstorms At Eglin Air Force Base: A Comparison Between Empirical Methods And The High Resolution Rapid Refresh Model, Matthew P. King
Theses and Dissertations
Summer thunderstorms pose the greatest forecast challenge for the United States Air Force's 96th Weather Flight (96WF) which provides weather support for Eglin Air Force Base (AFB). Located on Florida's panhandle, Eglin AFB encompasses the Department of Defense's largest range complex which covers 134,000 sq mi (347,000 sq km) of water and 724 sq mi (1875 sq km) of land. Due to the base's coastal location and unique coastline geometry, sea breeze is a dominant forecast consideration for thunderstorms. The 96 WF currently utilizes an empirical method, called WINNDEX, developed by former staff meteorologist Roger Winn to aid in thunderstorm …
Flood-Inundation Maps For A 12.5-Mile Reach Of Big Papillion Creek At Omaha, Nebraska,
2016
Nebraska Water Science Center
Flood-Inundation Maps For A 12.5-Mile Reach Of Big Papillion Creek At Omaha, Nebraska, Kellan R. Strauch, Benjamin J. Dietsch, Kayla J. Anderson
United States Geological Survey: Water Reports and Publications
Digital flood-inundation maps for a 12.5-mile reach of the Big Papillion Creek from 0.6 mile upstream from the State Street Bridge to the 72nd Street Bridge in Omaha, Nebraska, were created by the United States Geological Survey (USGS) in cooperation with the Papio-Missouri River Natural Resources District. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgage on the Big Papillion Creek at Fort Street at Omaha, Nebraska (station 06610732). Near-real-time …
West Florida Shelf Connectivity: An Exploratory Study,
2016
University of South Florida
West Florida Shelf Connectivity: An Exploratory Study, Amanda Sue Reinert
USF Tampa Graduate Theses and Dissertations
This Thesis explores the connectiveness of the West Florida Shelf’s various areas of economic and ecological importance by considering five case studies of varying dynamic forcing influences and time. The advection of water about the shelf moves nutrients and has a direct impact on the shelf’s ecology and the determination of whether or not the shelf will be oligotrophic at any given time or location. The case studies are analyzed both quantitatively and qualitatively after quasi-isopycnal particle trajectory calculations are completed for each. The findings support a combination of local and deep-ocean forcing being ideal for the maximum advection and …
Characterization Of Bacterial Diversity In Cold-Water Anthothelidae Corals,
2016
University of South Florida
Characterization Of Bacterial Diversity In Cold-Water Anthothelidae Corals, Stephanie Nichole Lawler
USF Tampa Graduate Theses and Dissertations
Cold-water corals, similar to tropical corals, contain a diverse and complex microbial landscape. Comprised of vital microscopic organisms (i.e. bacteria, viruses, archaea), the coral microbiome is a driving factor in the proliferation and survival of the coral host. Bacteria provide essential biological functions within coral holobionts, facilitating increased nutrient utilization and production of antimicrobial compounds. To date, few cold-water octocoral species have been analyzed to explore the diversity and abundance of their microbial associates. For this study, 23 samples of the family Anthothelidae were collected from Norfolk (n = 12) and Baltimore Canyons (n = 11) from the western Atlantic …
Sponge Distribution And The Presence Of Photosymbionts In Moorea, French Polynesia,
2016
Smithsonian Marine Station - Ft. Pierce; Institute for Pacific Coral Reefs
Sponge Distribution And The Presence Of Photosymbionts In Moorea, French Polynesia, Christopher J. Freeman, Cole Easson
Marine & Environmental Sciences Faculty Articles
Photosymbionts play an important role in the ecology and evolution of diverse host species within the marine environment. Although sponge-photosymbiont interactions have been well described from geographically disparate sites worldwide, our understanding of these interactions from shallow water systems within French Polynesia is limited. We surveyed diverse habitats around the north coast of Moorea, French Polynesia and screened sponges for the presence of photosymbionts. Overall sponge abundance and diversity were low, with <1% cover and only eight putative species identified by 28S barcoding from surveys at 21 sites. Of these eight species, seven were found predominately in shaded or semi-cryptic habitats under overhangs or within caverns. Lendenfeldia chondrodeswas the only species that supported a high abundance of photosymbionts and was also the only species found in exposed, illuminated habitats. Interestingly, L. chondrodes was …
Distribution, Abundance And Movement Of Fish Among Seagrass And Mangrove Habitats In Biscayne Bay,
2016
Nova Southeastern University
Distribution, Abundance And Movement Of Fish Among Seagrass And Mangrove Habitats In Biscayne Bay, Patrick C. Goebel
HCNSO Student Theses and Dissertations
Inshore tropical and subtropical estuaries harbor a relatively high abundance and diversity of organisms. Specifically within estuaries, mangrove and seagrass habitats provide shelter and food for a plethora of organisms, through some or all their life histories. Given the biological connection between offshore coral reefs and coastal estuaries, there is a critical need to understand the underlying processes that determine distribution and abundance patterns within mangrove-seagrass habitats. The predatory fish assemblage within the mangrove and seagrass beds of Biscayne Bay, Florida (USA), was examined over 24-hr. time periods along a distance and habitat gradient from the mangrove edge and nearshore …
Soft Robotic Grippers For Biological Sampling On Deep Reefs,
2016
Harvard University
Soft Robotic Grippers For Biological Sampling On Deep Reefs, Kevin C. Galloway, Kaitlyn P. Becker, Brennan Phillips, Jordan Kirby, Stephen Licht, Dan Tchernov, Robert J. Wood, David F. Gruber
Publications and Research
This article presents the development of an underwater gripper that utilizes soft robotics technology to delicately manipulate and sample fragile species on the deep reef. Existing solutions for deep sea robotic manipulation have historically been driven by the oil industry, resulting in destructive interactions with undersea life. Soft material robotics relies on compliant materials that are inherently impedance matched to natural environments and to soft or fragile organisms. We demonstrate design principles for soft robot end effectors, bench-top characterization of their grasping performance, and conclude by describing in situ testing at mesophotic depths. The result is the first use of …
Variability In Terrigenous Sediment Supply Offshore Of The Río De La Plata (Uruguay) Recording The Continental Climatic History Over The Past 1200 Years,
2016
Universidad de la Republica
Variability In Terrigenous Sediment Supply Offshore Of The Río De La Plata (Uruguay) Recording The Continental Climatic History Over The Past 1200 Years, Laura Perez, Felipe García-Rodríguez, Till J.J. Hanebuth
Marine Science
The continental shelf adjacent to the Río de la Plata (RdlP) exhibits extremely complex hydrographic and ecological characteristics which are of great socioeconomic importance. Since the long-term environmental variations related to the atmospheric (wind fields), hydrologic (freshwater plume), and oceanographic (currents and fronts) regimes are little known, the aim of this study is to reconstruct the changes in the terrigenous input into the inner continental shelf during the late Holocene period (associated with the RdlP sediment discharge) and to unravel the climatic forcing mechanisms behind them. To achieve this, we retrieved a 10 m long sediment core from the RdlP …
Sustainable Whale-Watching For The Philippines: A Bioeconomic Model Of The Spinner Dolphin (Stenella Longirostris),
2016
Nova Southeastern University
Sustainable Whale-Watching For The Philippines: A Bioeconomic Model Of The Spinner Dolphin (Stenella Longirostris), Allison Jenny Santos
HCNSO Student Theses and Dissertations
Whale-watching provides economic opportunities worldwide and particularly proliferates in developing countries, such as the Philippines. The sustainability of whale-watching is increasingly debated as these activities also negatively impact cetaceans through changes in behavior, communication, habitat use, morbidity, mortality, and life-history parameters. This study evaluated the total annual cost, revenue, and profit of whale-watching operators in Bais, Philippines, and predicted the changes in the population for spinner dolphin Stenella longirostris with varying levels of whale-watching effort. Total revenue was 3,805,077 PHP ($92,478 USD) while total cost was 5,649,094 PHP ($137,294 USD) with a discount rate of ten percent. The total annual …
Intergovernmental Pilot Program,
2016
Old Dominion University
Intergovernmental Pilot Program, Ray Toll
Presentations, Lectures, Posters, Reports
No abstract provided.
Effects Of Streamflows On Stream-Channel Morphology In The Eastern Niobrara National Scenic River, Nebraska, 1988–2010,
2016
Nebraska Water Science Center
Effects Of Streamflows On Stream-Channel Morphology In The Eastern Niobrara National Scenic River, Nebraska, 1988–2010, Nathaniel J. Schaepe, Jason S. Alexander, Kiernan Folz-Donahue
United States Geological Survey: Water Reports and Publications
The Niobrara River is an important and valuable economic and ecological resource in northern Nebraska that supports ecotourism, recreational boating, wildlife, fisheries, agriculture, and hydroelectric power. Because of its uniquely rich resources, a 122-kilometer reach of the Niobrara River was designated as a National Scenic River in 1991, which has been jointly managed by the United States Fish and Wildlife Service and National Park Service (NPS). To assess how the remarkable qualities of the National Scenic River may change if consumptive uses of water are increased above current levels, the United States Geological Survey (USGS), in cooperation with the NPS, …
Research, Cooperation, A Vision For Combatting Rising Seas,
2016
Old Dominion University
Research, Cooperation, A Vision For Combatting Rising Seas, Joshua Behr
VMASC Publications
No abstract provided.
Mapping Irrigated And Rainfed Wheat Areas Using Multi-Temporal Satellite Data,
2016
Institute of Geographic Sciences and Natural Resources Research, China
Mapping Irrigated And Rainfed Wheat Areas Using Multi-Temporal Satellite Data, Ning Jin, Bo Tao, Wei Ren, Meichen Feng, Rui Sun, Liang He, Wei Zhuang, Qiang Yu
Plant and Soil Sciences Faculty Publications
Irrigation is crucial to agriculture in arid and semi-arid areas and significantly contributes to crop development, food diversity and the sustainability of agro-ecosystems. For a specific crop, the separation of its irrigated and rainfed areas is difficult, because their phenology is similar and therefore less distinguishable, especially when there are phenology shifts due to various factors, such as elevation and latitude. In this study, we present a simple, but robust method to map irrigated and rainfed wheat areas in a semi-arid region of China. We used the Normalized Difference Vegetation Index (NDVI) at a 30 × 30 m spatial resolution …
Twentieth-Century Warming Preserved In A Geladaindong Mountain Ice Core, Central Tibetan Plateau,
2016
Chinese Academy of Sciences
Twentieth-Century Warming Preserved In A Geladaindong Mountain Ice Core, Central Tibetan Plateau, Yulan Zhang, Shichang Kang, Bjorn Grigholm, Yongjun Zhang, Susan Kaspari, Uwe Morgenstern, Jiawen Ren, Dahe Qin, Paul A. Mayewski, Qianggong Zhang, Zhiyuan Cong, Mika Sillanpää, Margit Schwikowski, Feng Chen
All Faculty Scholarship for the College of the Sciences
High-resolution δ18O records from a Geladaindong mountain ice core spanning the period 1477-1982 were used to investigate past temperature variations in the Yangtze River source region of the central Tibetan Plateau (TP). Annual ice-core δ18O records were positively correlated with temperature data from nearby meteorological stations, suggesting that the δ18O record represented the air temperature in the region. A generally increasing temperature trend over the past 500 years was identified, with amplified warming during the 20th century. A colder stage, spanning before the 1850s, was found to represent the Little Ice Age with colder …
Odu Sea Level Rise Expert Ray Toll To Discuss Resilience At D.C. Forum,
2016
Old Dominion University
Odu Sea Level Rise Expert Ray Toll To Discuss Resilience At D.C. Forum, Brendan O'Hallarn
News Items
No abstract provided.
Upscaling Methane Emission Hotspots In Boreal Peatlands,
2016
Max Planck Institute
Upscaling Methane Emission Hotspots In Boreal Peatlands, Fabio Cresto Aleina, Benjamin R. K. Runkle, Tim Brucher, Thomas Kleinen, Victor Brovkin
Biological and Agricultural Engineering Faculty Publications and Presentations
Upscaling the properties and effects of small-scale surface heterogeneities to larger scales is a challenging issue in land surface modeling. We developed a novel approach to upscale local methane emissions in a boreal peatland from the micro-topographic scale to the landscape scale. We based this new parameterization on the analysis of the water table pattern generated by the Hummock–Hollow model, a microtopography resolving model for peatland hydrology. We introduce this parameterization of methane hotspots in a global model-like version of the Hummock–Hollow model that underestimates methane emissions. We tested the robustness of the parameterization by simulating methane emissions for the …
Dissolved Oxygen Monitoring In Kings River And Leatherwood Creek,
2016
University of Arkansas, Fayetteville
Dissolved Oxygen Monitoring In Kings River And Leatherwood Creek, Eric Cummings, Erin E. Scott, Marty Matlock, Brian E. Haggard
Arkansas Water Resources Center Technical Reports
The Clean Water Act (CWA) establishes the basic structure used to regulate water quality. Under the CWA, States are required to assess water bodies relative to water‐quality standards and designated beneficial uses and then to submit lists of impaired bodies every other year to the US Environmental Protection Agency (USEPA). In 2015, at least 4,800 water bodies were listed as impaired by dissolved oxygen across the US (USEPA, 2015). Aquatic species like fish and macroinvertebrates depend on adequate dissolved oxygen for survival. Low dissolved oxygen can lead to fish kills, reduced aquatic diversity, and nuisance smells from anaerobic conditions – …
Ua66 Ogden College Of Science & Engineering Newsletter,
2016
Western Kentucky University
Ua66 Ogden College Of Science & Engineering Newsletter, Cheryl Stevens, Dean
Ogden College of Science & Engineering Publications
No abstract provided.
How Can Agroforestry Help Landowners Adapt To Increased Rain Intensity?,
2016
University of Nebraska - Lincoln
How Can Agroforestry Help Landowners Adapt To Increased Rain Intensity?
Working Trees (USDA-NAC)
Agroforestry practices can help landowners adapt to increased rain intensity.
