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  1. Article: A structured light method for underwater surface reconstruction

    Sarafraz, Amin / Brian K. Haus

    International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS) ISPRS journal of photogrammetry and remote sensing. 2016 Apr., v. 114

    2016  

    Abstract: A new structured-light method for 3D imaging has been developed which can simultaneously estimate both the geometric shape of the water surface and the geometric shape of underwater objects. The method requires only a single image and thus can be applied ...

    Abstract A new structured-light method for 3D imaging has been developed which can simultaneously estimate both the geometric shape of the water surface and the geometric shape of underwater objects. The method requires only a single image and thus can be applied to dynamic as well as static scenes. Experimental results show the utility of this method in non-invasive underwater 3D reconstruction applications. The performance of the new method is studied through a sensitivity analysis for different parameters of the suggested method.
    Keywords detection limit ; geometry ; image analysis ; photogrammetry ; remote sensing
    Language English
    Dates of publication 2016-04
    Size p. 40-52.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1007774-1
    ISSN 0924-2716
    ISSN 0924-2716
    DOI 10.1016/j.isprsjprs.2016.01.014
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Author Correction

    Breanna Vanderplow / Alexander V. Soloviev / Cayla W. Dean / Brian K. Haus / Roger Lukas / Muhammad Sami / Isaac Ginis

    Scientific Reports, Vol 11, Iss 1, Pp 1-

    Potential effect of bio-surfactants on sea spray generation in tropical cyclone conditions

    2021  Volume 1

    Abstract: An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...

    Abstract An amendment to this paper has been published and can be accessed via a link at the top of the paper.
    Keywords Medicine ; R ; Science ; Q
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Potential effect of bio-surfactants on sea spray generation in tropical cyclone conditions

    Breanna Vanderplow / Alexander V. Soloviev / Cayla W. Dean / Brian K. Haus / Roger Lukas / Muhammad Sami / Isaac Ginis

    Scientific Reports, Vol 10, Iss 1, Pp 1-

    2020  Volume 10

    Abstract: Abstract Despite significant improvement in computational and observational capabilities, predicting intensity and intensification of major tropical cyclones remains a challenge. In 2017 Hurricane Maria intensified to a Category 5 storm within 24 h, ... ...

    Abstract Abstract Despite significant improvement in computational and observational capabilities, predicting intensity and intensification of major tropical cyclones remains a challenge. In 2017 Hurricane Maria intensified to a Category 5 storm within 24 h, devastating Puerto Rico. In 2019 Hurricane Dorian, predicted to remain tropical storm, unexpectedly intensified into a Category 5 storm and destroyed the Bahamas. The official forecast and computer models were unable to predict rapid intensification of these storms. One possible reason for this is that key physics, including microscale processes at the air-sea interface, are poorly understood and parameterized in existing forecast models. Here we show that surfactants significantly affect the generation of sea spray, which provides some of the fuel for tropical cyclones and their intensification, but also provides some of the drag that limits intensity and intensification. Using a numerical model verified with a laboratory experiment, which predicts spray radii distribution starting from a 100 μm radius, we show that surfactants increase spray generation by 20–34%. We anticipate that bio-surfactants affect heat, energy, and momentum exchange through altered size distribution and concentration of sea spray, with consequences for tropical cyclone intensification or decline, particularly in areas of algal blooms and near coral reefs, as well as in areas affected by oil spills and dispersants.
    Keywords Medicine ; R ; Science ; Q
    Subject code 333
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Coral restoration for coastal resilience

    T. Shay Viehman / Borja G. Reguero / Hunter S. Lenihan / Johanna H. Rosman / Curt D. Storlazzi / Elizabeth A. Goergen / Miguel F. Canals Silander / Sarah H. Groves / Daniel M. Holstein / Andrew W. Bruckner / Jane V. Carrick / Brian K. Haus / Julia B. Royster / Melissa S. Duvall / Walter I. Torres / James L. Hench

    Ecosphere, Vol 14, Iss 5, Pp n/a-n/a (2023)

    Integrating ecology, hydrodynamics, and engineering at multiple scales

    2023  

    Abstract: Abstract The loss of functional and accreting coral reefs reduces coastal protection and resilience for tropical coastlines. Coral restoration has potential for recovering healthy reefs that can mitigate risks from coastal hazards and increase ... ...

    Abstract Abstract The loss of functional and accreting coral reefs reduces coastal protection and resilience for tropical coastlines. Coral restoration has potential for recovering healthy reefs that can mitigate risks from coastal hazards and increase sustainability. However, scaling up restoration to the large extent needed for coastal protection requires integrated application of principles from coastal engineering, hydrodynamics, and ecology across multiple spatial scales, as well as filling missing knowledge gaps across disciplines. This synthesis aims to identify how scientific understanding of multidisciplinary processes at interconnected scales can advance coral reef restoration. The work is placed within the context of a decision support framework to evaluate the design and effectiveness of coral restoration for coastal resilience. Successfully linking multidisciplinary science with restoration practice will ensure that future large‐scale coral reef restorations maximize protection for at‐risk coastal communities.
    Keywords coastal protection ; coral reef ; engineering ; hydrodynamics ; restoration ; Ecology ; QH540-549.5
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Advances in Observing and Understanding Small-Scale Open Ocean Circulation During the Gulf of Mexico Research Initiative Era

    Eric A. D'Asaro / Daniel F. Carlson / Marcelo Chamecki / Ramsey R. Harcourt / Brian K. Haus / Baylor Fox-Kemper / M. Jeroen Molemaker / Andrew C. Poje / Di Yang

    Frontiers in Marine Science, Vol

    2020  Volume 7

    Abstract: Predicting the distribution of oil, buoyant plastics, flotsam, and marine organisms near the ocean surface remains a fundamental problem of practical importance. This manuscript synthesizes progress in this area during the time of the Gulf of Mexico ... ...

    Abstract Predicting the distribution of oil, buoyant plastics, flotsam, and marine organisms near the ocean surface remains a fundamental problem of practical importance. This manuscript synthesizes progress in this area during the time of the Gulf of Mexico Research Initiative (GoMRI; 2012–2019), with an emphasis on the accumulation of floating material into highly concentrated streaks on horizontal scales of meters to 10's of kilometers. Prior to the GoMRI period, two new paradigms emerged: the importance of submesoscale frontal dynamics on the larger scales and of surface-wave-driven Langmuir turbulence on the smaller scales, with a broad transition occurring near 100 m. Rapid progress resulted from the combination of high resolution numerical modeling tools, mostly developed before GoMRI, and new observational techniques developed during GoMRI. Massive deployments of inexpensive and biodegradable satellite-tracked surface drifters combined with aerial tracking of oil surrogates (drift cards) enabled simultaneous observations of surface ocean velocities and dispersion over scales of 10 m to 10's of kilometers. Surface current maps produced by ship-mounted radar and aerial optical remote sensing systems, combined with traditional oceanographic tools, enabled a set of coordinated measurement programs that supported and expanded the new paradigms. Submesoscale fronts caused floating material to both accumulate at fronts and to disperse as they evolved, leading to higher local concentrations, but increased overall dispersion. Analyses confirmed the distinct submesoscale dynamics of this process and the complexity of the resulting fields. Existing tools could be developed into predictive models of submesoscale statistics, but prediction of individual submesoscale features will likely remain limited by data. Away from fronts, measured rates of accumulation of material in and beneath surface windrows was found to be consistent with Langmuir turbulence, but highly dependent on the rise rate of the material and thus, for oil, on the droplet size. Models of this process were developed and tested and could be further developed into predictive tools. Both the submesoscale and Langmuir processes are sensitive to coupling with surface waves and air-sea flux processes. This sensitivity is a promising area for future studies.
    Keywords submesoscale ; boundary ; turbulence ; Langmuir ; dispersion ; oil ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Subject code 551
    Language English
    Publishing date 2020-05-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: Wave energy level and geographic setting correlate with Florida beach water quality

    Feng, Zhixuan / Ad Reniers / Brian K. Haus / Elizabeth A. Kelly / Helena M. Solo-Gabriele

    Marine pollution bulletin. 2016 Mar. 15, v. 104, no. 1-2

    2016  

    Abstract: Many recreational beaches suffer from elevated levels of microorganisms, resulting in beach advisories and closures due to lack of compliance with Environmental Protection Agency guidelines. We conducted the first statewide beach water quality assessment ...

    Abstract Many recreational beaches suffer from elevated levels of microorganisms, resulting in beach advisories and closures due to lack of compliance with Environmental Protection Agency guidelines. We conducted the first statewide beach water quality assessment by analyzing decadal records of fecal indicator bacteria (enterococci and fecal coliform) levels at 262 Florida beaches. The objectives were to depict synoptic patterns of beach water quality exceedance along the entire Florida shoreline and to evaluate their relationships with wave condition and geographic location. Percent exceedances based on enterococci and fecal coliform were negatively correlated with both long-term mean wave energy and beach slope. Also, Gulf of Mexico beaches exceeded the thresholds significantly more than Atlantic Ocean ones, perhaps partially due to the lower wave energy. A possible linkage between wave energy level and water quality is beach sand, a pervasive nonpoint source that tends to harbor more bacteria in the low-wave-energy environment.
    Keywords beaches ; coliform bacteria ; compliance ; correlation ; Enterococcus ; environmental protection ; guidelines ; indicator species ; sand ; shorelines ; water pollution ; water power ; water quality ; Atlantic Ocean ; Florida ; Gulf of Mexico
    Language English
    Dates of publication 2016-0315
    Size p. 54-60.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2016.02.011
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: A predictive model for microbial counts on beaches where intertidal sand is the primary source

    Feng, Zhixuan / Ad Reniers / Brian K. Haus / Helena M. Solo-Gabriele / John D. Wang / Lora E. Fleming

    Marine pollution bulletin. 2015 May 15, v. 94, no. 1-2

    2015  

    Abstract: Human health protection at recreational beaches requires accurate and timely information on microbiological conditions to issue advisories. The objective of this study was to develop a new numerical mass balance model for enterococci levels on nonpoint ... ...

    Abstract Human health protection at recreational beaches requires accurate and timely information on microbiological conditions to issue advisories. The objective of this study was to develop a new numerical mass balance model for enterococci levels on nonpoint source beaches. The significant advantage of this model is its easy implementation, and it provides a detailed description of the cross-shore distribution of enterococci that is useful for beach management purposes. The performance of the balance model was evaluated by comparing predicted exceedances of a beach advisory threshold value to field data, and to a traditional regression model. Both the balance model and regression equation predicted approximately 70% the advisories correctly at the knee depth and over 90% at the waist depth. The balance model has the advantage over the regression equation in its ability to simulate spatiotemporal variations of microbial levels, and it is recommended for making more informed management decisions.
    Keywords beaches ; coastal zone management ; Enterococcus ; equations ; health promotion ; human health ; littoral zone ; models ; predictive microbiology ; regression analysis ; sand ; spatial variation ; temporal variation ; water pollution
    Language English
    Dates of publication 2015-0515
    Size p. 37-47.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2015.03.019
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Remotely Sensed Winds and Wind Stresses for Marine Forecasting and Ocean Modeling

    Mark A. Bourassa / Thomas Meissner / Ivana Cerovecki / Paul S. Chang / Xiaolong Dong / Giovanna De Chiara / Craig Donlon / Dmitry S. Dukhovskoy / Jocelyn Elya / Alexander Fore / Melanie R. Fewings / Ralph C. Foster / Sarah T. Gille / Brian K. Haus / Svetla Hristova-Veleva / Heather M. Holbach / Zorana Jelenak / John A. Knaff / Sven A. Kranz /
    Andrew Manaster / Matthew Mazloff / Carl Mears / Alexis Mouche / Marcos Portabella / Nicolas Reul / Lucrezia Ricciardulli / Ernesto Rodriguez / Charles Sampson / Daniel Solis / Ad Stoffelen / Michael R. Stukel / Bryan Stiles / David Weissman / Frank Wentz

    Frontiers in Marine Science, Vol

    2019  Volume 6

    Abstract: Strengths and weakness of remotely sensed winds are discussed, along with the current capabilities for remotely sensing winds and stress. Future missions are briefly mentioned. The observational needs for a wide range of wind and stress applications are ... ...

    Abstract Strengths and weakness of remotely sensed winds are discussed, along with the current capabilities for remotely sensing winds and stress. Future missions are briefly mentioned. The observational needs for a wide range of wind and stress applications are provided. These needs strongly support a short list of desired capabilities of future missions and constellations.
    Keywords satellite ; wind ; stress ; ocean ; requirements ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Language English
    Publishing date 2019-08-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Microbial release from seeded beach sediments during wave conditions

    Phillips, Matthew C / Ad J.H.M. Reniers / Amber A. Enns / Brian K. Haus / David B. Hernandez / Helena M. Solo-Gabriele / Laura J. Vogel / Yifan Zhang / Zhixuan Feng

    Marine pollution bulletin. 2014 Feb. 15, v. 79, no. 1-2

    2014  

    Abstract: Beach sands can sustain indigenous and introduced populations of enterococci. The objective of this study was to evaluate wave action in promoting the release of introduced bacteria. To accomplish this objective this study developed a method to assess ... ...

    Abstract Beach sands can sustain indigenous and introduced populations of enterococci. The objective of this study was to evaluate wave action in promoting the release of introduced bacteria. To accomplish this objective this study developed a method to assess attachment and identified conditions under which introduced bacteria are integrated into the sand. A new “shearing assay” showed that attachment of the introduced spike mimicked that of the natural sand when the spike was allowed to integrate into the sand for 24h at room temperature at a sand moisture content of 20%. Experiments in a wave flume showed that waves were capable of releasing about 60% of the total bacteria added. This suggests that for the range of wave conditions evaluated (height: 1.9–10.5cm, period:1–2.7s), waves were incapable of releasing all of the bacteria. Further study is needed to evaluate bacteria attachment mechanisms.
    Keywords ambient temperature ; bacteria ; Enterococcus ; indigenous species ; introduced species ; sand ; water content ; water pollution
    Language English
    Dates of publication 2014-0215
    Size p. 114-122.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2013.12.029
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Wave energy level and geographic setting correlate with Florida beach water quality

    Feng, Zhixuan / Ad Reniers / Brian K. Haus / Helena M. Solo-Gabriele / Elizabeth A. Kelly

    Marine Pollution Bulletin

    Volume v. 104

    Abstract: Many recreational beaches suffer from elevated levels of microorganisms, resulting in beach advisories and closures due to lack of compliance with Environmental Protection Agency guidelines. We conducted the first statewide beach water quality assessment ...

    Abstract Many recreational beaches suffer from elevated levels of microorganisms, resulting in beach advisories and closures due to lack of compliance with Environmental Protection Agency guidelines. We conducted the first statewide beach water quality assessment by analyzing decadal records of fecal indicator bacteria (enterococci and fecal coliform) levels at 262 Florida beaches. The objectives were to depict synoptic patterns of beach water quality exceedance along the entire Florida shoreline and to evaluate their relationships with wave condition and geographic location. Percent exceedances based on enterococci and fecal coliform were negatively correlated with both long-term mean wave energy and beach slope. Also, Gulf of Mexico beaches exceeded the thresholds significantly more than Atlantic Ocean ones, perhaps partially due to the lower wave energy. A possible linkage between wave energy level and water quality is beach sand, a pervasive nonpoint source that tends to harbor more bacteria in the low-wave-energy environment.
    Language English
    Document type Article
    ISSN 0025-326X
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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