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  1. AU="Noah Lawrence-Slavas"
  2. AU="Arms, K.G"
  3. AU="Middleton, Elliott" AU="Middleton, Elliott"
  4. AU="Mrityunjoy Biswas"
  5. AU="Li, Changyang"
  6. AU="Kalaitzis, Panagiotis"
  7. AU="Atallah, Reham"
  8. AU="Schelhaas, Mart Jan"
  9. AU="Wang, Lixianqiu"
  10. AU="Cronin, Robert M"
  11. AU="Wu, Zhang Zhi"
  12. AU="Lombardo, Michael V" AU="Lombardo, Michael V"
  13. AU="Muhammad Asghar Pasha"
  14. AU="Linda Feketeová"
  15. AU="Aldrich, J Matthew"
  16. AU="Williams, Kristopher"
  17. AU="Calvet, Loreley"
  18. AU="Rui Pinto"
  19. AU="Feret, Geoff"
  20. AU="Sherrill-Mix, Scott"
  21. AU="Eleanor Eaton"
  22. AU="Latour, Corine H M"
  23. AU="Radetic, Mark"
  24. AU="James Jensen"
  25. AU="McFalls, Jeanne"
  26. AU="Sylvain Sebert"

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  1. Artikel ; Online: Sea Surface Salinity Variability in the Bering Sea in 2015–2020

    Jian Zhao / Yan Wang / Wenjing Liu / Hongsheng Bi / Edward D. Cokelet / Calvin W. Mordy / Noah Lawrence-Slavas / Christian Meinig

    Remote Sensing, Vol 14, Iss 758, p

    2022  Band 758

    Abstract: Salinity in the Bering Sea is vital for the physical environment that is tied to the productive ecosystem and the properties of Pacific waters transported to the Arctic Ocean. Its salinity variability reflects many fundamental processes, including sea ... ...

    Abstract Salinity in the Bering Sea is vital for the physical environment that is tied to the productive ecosystem and the properties of Pacific waters transported to the Arctic Ocean. Its salinity variability reflects many fundamental processes, including sea ice formation/melting and river runoff, but its spatial and temporal characteristics require better documentation. This study utilizes remote sensing products and in situ observations collected by saildrone missions to investigate Sea Surface Salinity (SSS) variability. All Satellite products resolve the large-scale pattern set up by the relatively salty deep basin and the fresh coastal region, but they can be inaccurate near the ice edge and near land. The SSS annual cycle exhibits seasonal maxima in winter to spring, and minima in summer to fall. The amplitude and timing of the seasonal cycle are variable, especially on the eastern Bering Sea shelf. SSS variability recorded by both saildrone, and satellite instruments provide unprecedented insights into short-term oceanic processes including sea ice melting, wind-driven currents during weather events, and river plumes etc. In particular, the Soil Moisture Active Passive (SMAP) satellite demonstrates encouraging skills in capturing the freshening signals induced by spring sea ice melting. The Yukon River plume is another source of intense SSS variability. Surface wind forcing plays an essential role in controlling the horizontal movement of plume water and thereby shaping the SSS seasonal cycle in local regions.
    Schlagwörter sea surface salinity ; Bering Sea ; remote sensing ; saildrone ; sea ice ; river plume ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2022-02-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Surface ocean warming near the core of hurricane Sam and its representation in forecast models

    Andrew M. Chiodi / Hristina Hristova / Gregory R. Foltz / Jun A. Zhang / Calvin W. Mordy / Catherine R. Edwards / Chidong Zhang / Christian Meinig / Dongxiao Zhang / Edoardo Mazza / Edward D. Cokelet / Eugene F. Burger / Francis Bringas / Gustavo Goni / Hyun-Sook Kim / Sue Chen / Joaquin Triñanes / Kathleen Bailey / Kevin M. O’Brien /
    Maria Morales-Caez / Noah Lawrence-Slavas / Shuyi S. Chen / Xingchao Chen

    Frontiers in Marine Science, Vol

    2024  Band 10

    Abstract: On September 30, 2021, a saildrone uncrewed surface vehicle intercepted Hurricane Sam in the northwestern tropical Atlantic and provided continuous observations near the eyewall. Measured surface ocean temperature unexpectedly increased during the first ... ...

    Abstract On September 30, 2021, a saildrone uncrewed surface vehicle intercepted Hurricane Sam in the northwestern tropical Atlantic and provided continuous observations near the eyewall. Measured surface ocean temperature unexpectedly increased during the first half of the storm. Saildrone current shear and upper-ocean structure from the nearest Argo profiles show an initial trapping of wind momentum by a strong halocline in the upper 30 m, followed by deeper mixing and entrainment of warmer subsurface water into the mixed layer. The ocean initial conditions provided to operational forecast models failed to capture the observed upper-ocean structure. The forecast models failed to simulate the warming and developed a surface cold bias of ~0.5°C by the time peak winds were observed, resulting in a 12-17% underestimation of surface enthalpy flux near the eyewall. Results imply that enhanced upper-ocean observations and, critically, improved assimilation into the hurricane forecast systems, could directly benefit hurricane intensity forecasts.
    Schlagwörter tropical cyclones ; saildrone intercept ; enthalpy flux ; salinity stratification ; temperature inversions ; ARGO ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Thema/Rubrik (Code) 551
    Sprache Englisch
    Erscheinungsdatum 2024-01-01T00:00:00Z
    Verlag Frontiers Media S.A.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Exploring the Pacific Arctic Seasonal Ice Zone With Saildrone USVs

    Andrew M. Chiodi / Chidong Zhang / Edward D. Cokelet / Qiong Yang / Calvin W. Mordy / Chelle L. Gentemann / Jessica N. Cross / Noah Lawrence-Slavas / Christian Meinig / Michael Steele / Don E. Harrison / Phyllis J. Stabeno / Heather M. Tabisola / Dongxiao Zhang / Eugene F. Burger / Kevin M. O’Brien / Muyin Wang

    Frontiers in Marine Science, Vol

    2021  Band 8

    Abstract: More high-quality, in situ observations of essential marine variables are needed over the seasonal ice zone to better understand Arctic (or Antarctic) weather, climate, and ecosystems. To better assess the potential for arrays of uncrewed surface ... ...

    Abstract More high-quality, in situ observations of essential marine variables are needed over the seasonal ice zone to better understand Arctic (or Antarctic) weather, climate, and ecosystems. To better assess the potential for arrays of uncrewed surface vehicles (USVs) to provide such observations, five wind-driven and solar-powered saildrones were sailed into the Chukchi and Beaufort Seas following the 2019 seasonal retreat of sea ice. They were equipped to observe the surface oceanic and atmospheric variables required to estimate air-sea fluxes of heat, momentum and carbon dioxide. Some of these variables were made available to weather forecast centers in real time. Our objective here is to analyze the effectiveness of existing remote ice navigation products and highlight the challenges and opportunities for improving remote ice navigation strategies with USVs. We examine the sources of navigational sea-ice distribution information based on post-mission tabulation of the sea-ice conditions encountered by the vehicles. The satellite-based ice-concentration analyses consulted during the mission exhibited large disagreements when the sea ice was retreating fastest (e.g., the 10% concentration contours differed between analyses by up to ∼175 km). Attempts to use saildrone observations to detect the ice edge revealed that in situ temperature and salinity measurements varied sufficiently in ice bands and open water that it is difficult to use these variables alone as a reliable ice-edge indicator. Devising robust strategies for remote ice zone navigation may depend on developing the capability to recognize sea ice and initiate navigational maneuvers with cameras and processing capability onboard the vehicles.
    Schlagwörter Arctic sea ice ; saildrone ; USVs ; satellite sea-ice concentration ; remote navigation ; air-sea fluxes ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Thema/Rubrik (Code) 290
    Sprache Englisch
    Erscheinungsdatum 2021-05-01T00:00:00Z
    Verlag Frontiers Media S.A.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Public–Private Partnerships to Advance Regional Ocean-Observing Capabilities

    Christian Meinig / Eugene F. Burger / Nora Cohen / Edward D. Cokelet / Meghan F. Cronin / Jessica N. Cross / Sebastien de Halleux / Richard Jenkins / Andrew T. Jessup / Calvin W. Mordy / Noah Lawrence-Slavas / Adrienne J. Sutton / Dongxiao Zhang / Chidong Zhang

    Frontiers in Marine Science, Vol

    A Saildrone and NOAA-PMEL Case Study and Future Considerations to Expand to Global Scale Observing

    2019  Band 6

    Abstract: Partnership between the private sector and the ocean-observing community brings exciting opportunities to address observing challenges through leveraging the unique strengths of each sector. Here, we discuss a case study of a successful relationship ... ...

    Abstract Partnership between the private sector and the ocean-observing community brings exciting opportunities to address observing challenges through leveraging the unique strengths of each sector. Here, we discuss a case study of a successful relationship between the National Oceanic and Atmospheric Administration (NOAA) Pacific Marine Environmental Laboratory (PMEL) and Saildrone to instrument an unmanned surface vehicle (USV) in order to serve shared goals. This case study demonstrates that a private company working with a federal laboratory has provided innovative ocean-observing solutions deployed at regional scale in only a few years, and we project that this model will be sustainable over the long term. An alignment of long-term goals with practical deliverables during the development process and integrating group cultures were key to success. To date, this effort has expanded NOAA’s interdisciplinary observing capabilities, improved public access to ocean data, and paved the way for a growing range of USV applications in every ocean. By emphasizing shared needs, complementary strengths, and a clear vision for a sustainable future observing system, we believe that this case study can serve as a blueprint for public and private partners who wish to improve observational capacity. We recommend that the international scientific community continues to foster collaborations between the private sector and regional ocean-observing networks. This effort could include regional workshops that build community confidence through independent oversight of data quality. We also recommend that an international framework should be created to organize public and private partners in the atmospheric and oceanographic fields. This body would coordinate development of observational technologies that adhere to best practices and standards for sensor integration, verification, data quality control and delivery, and provide guidance for unmanned vehicle providers. Last, we also recommend building bridges between the private sector, the ...
    Schlagwörter unmanned surface vehicle ; Saildrone ; National Oceanic and Atmospheric Administration ; Pacific Marine Environmental Laboratory ; surface essential ocean variables ; essential climate variables ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Thema/Rubrik (Code) 551 ; 333
    Sprache Englisch
    Erscheinungsdatum 2019-08-01T00:00:00Z
    Verlag Frontiers Media S.A.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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