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  • 1
    Book
    Book
    A compilation of moored current meter data... / Woods Hole Oceanographic Institution; 43: A compilation of moored current meter data and wind recorder data from the Severe Environment Surface Mooring (SESMOOR) (1991)
    Associated volumes
    Details Availability
    In: 43
    Type of Medium: Book
    Pages: VI, 49 S , graph. Darst
    Series Statement: Technical report / Woods Hole Oceanographic Institution 91-18
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    Adaptation of particle-telescope technology for medium energy ion beam analysis (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 1575-1579 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Medium energy (100–300 keV) time-of-flight spectrometry for surface analysis uses the correlated detection of an energetic ion and the secondary electrons emitted as it passes through a carbon foil. When microchannel plates are employed in this detection scheme, a typical mean efficiency of detection of less than 30% is achieved. When instead a surface barrier detector is used to detect the ion, providing simultaneous acquisition of velocity and energy information, certain advantages are realized over the two microchannel plate configuration in the characterization of low level constituents of surfaces. Specifically, energy-discriminated gating of the start pulse was observed to nearly eliminate count rate dependent background in a time-of-flight spectrum. Further reduction in background was obtained by the selective elimination of forward recoil species or backscatters from the substrate. Replacement of the stop microchannel plate by a surface barrier detector has resulted in improved detection efficiency for He, as well as provided a means for further study of the processes which affect time-of-flight spectrometer response, including multiple scattering and secondary electron emission in the start foil. In this publication, we describe the application of this particle telescope to the backscattering analysis of gold on silicon and the forward scattering measurement of hydrogen in a self-supporting carbon film.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144894
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Destruction of a MgF2 optical coating by 250 keV α particle irradiation (1990)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 1712-1714 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnesium fluoride coatings ∼170 A(ring) thick have been evaporated onto mirror-quality Be substrates in ultrahigh vacuum and subsequently subjected to 250 keV α particle irradiation at room temperature. Analysis of the irradiated area by medium energy backscattering spectrometry revealed that the irradiation selectively removed fluorine with an initial yield of 2.2 fluorine atoms per incident α particle. A visible degradation in reflectivity, which became progressively more extensive with increasing dose, was observed after an α particle fluence of 1016 cm−2. After a total irradiation of 4×1017 cm−2 less than 20% of the fluorine in the film remained, effectively reducing it to metallic magnesium. The effect of this change on the reflectivity of the surface was catastrophic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.104141
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Not so quiet on the ocean front (1990)
    [s.l.] : Nature Publishing Group
    Nature 348 (1990), S. 199-200 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OCEAN fronts are regions of strong horizontal gradients in water properties. In the open ocean they are, in effect, rather narrow boundary regions between bodies of water characterized by different temperature or salinity, or some other differing property. Since the 1960s we have known1 that ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/348199a0
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  • 5
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    Eddies and an extreme water mass anomaly observed in the eastern south Pacific at the Stratus mooring (2014)
    AGU (American Geophysical Union) | Wiley
    In:  Journal of Geophysical Research: Oceans, 119 (2). pp. 1068-1083.
    Details
    Publication Date: 2019-09-23
    Description: In the tropical eastern South Pacific the Stratus Ocean Reference Station (ORS) (∼20°S, 85.5°W) is located in the transition zone between the oxygen minimum zone (OMZ) and the well-oxygenated subtropical gyre. In February/March 2012, extremely anomalous water mass properties were observed in the thermocline at the Stratus ORS. The available eddy oxygen anomaly was −10.5 × 1016 µmol. This anomalous water was contained in an anticyclonic mode-water eddy crossing the mooring site. This eddy was absorbed at that time by an anticyclonic feature located south of the Stratus mooring. This was the largest water property anomaly observed at the mooring during the 13.5 month deployment period. The sea surface height anomaly (SSHA) of the strong mode-water eddy in February/March 2012 was weak, and while the lowest and highest SSHA were related to weak eddies, SSHA is found not to be sufficient to specify the eddy strength for subsurface-intensified eddies. Still, the anticyclonic eddy, and its related water mass characteristics, could be tracked backward in time in SSHA satellite data to a formation region in April 2011 off the Chilean coast. The resulting mean westward propagation velocity was 5.5 cm s−1. This extremely long-lived eddy carried the water characteristics from the near-coastal Chilean water to the open ocean. The water mass stayed isolated during the 11 month travel time due to high rotational speed of about 20 cm s−1 leading to almost zero oxygen in the subsurface layer of the anticyclonic mode-water eddy with indications of high primary production just below the mixed layer.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1002/2013JC009470
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 6
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    Wind measurements from an array of oceanographic moorings and from F/SMeteor during JASIN 1978 (2012)
    AGU (American Geophysical Union)
    In:  Journal of Geophysical Research: Oceans, 88 (C14). pp. 9689-9705.
    Details
    Publication Date: 2019-04-04
    Description: During the Joint Air-Sea Interaction (JASIN) experiment conducted in the northern Rockall Trough in the summer of 1978, oceanographic moorings with surface buoys carrying wind recorders were deployed in an array designed to investigate the variability of the near-surface wind field at scales of from 2 to 200 km. The wind records together with observations taken on board the research vessels participating in JASIN have provided ground truth measurements for the sea surface wind velocity sensors on the Seasat satellite. During most of the experiment the wind field was characterized by spatial scales large in comparison with the separations between the buoys. On several occasions, spatial differences associated with cold fronts were identified, and it was possible to track the passage of the front through the array. However, quantitative analysis of the variability of the wind field was complicated both by a lack of data due to mechanical failures of some instruments and by significant differences in the performance of the diverse types of wind recorders. Reevaluation of the instruments used in JASIN and recent comparison of some of these instruments with more conventional sets of wind sensors confirm the possibility that there is significant error in the JASIN wind measurements made from the buoys. In particular, the vector-averaging wind recorder on W2, which was one of the few instruments to recover a full length record and which was chosen during a Seasat-JASIN workshop as the JASIN standard, had performance characteristics that were among the most difficult to explain.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1029/JC088iC14p09689
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 7
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    Correction to “Intraseasonal variability near 10°N in the eastern tropical Pacific Ocean” (2010)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 112 (2007): C03011, doi:10.1029/2007JC004135.
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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    PAPER (OA)
  • 8
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    The CLIMODE field campaign : observing the cycle of convection and restratification over the Gulf Stream (2010)
    American Meteorological Society
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Bulletin of the American Meteorological Society 90 (2009): 1337-1350, doi:10.1175/2009BAMS2706.1.
    Description: A major oceanographic field experiment is described, which is designed to observe, quantify, and understand the creation and dispersal of weakly stratified fluid known as “mode water” in the region of the Gulf Stream. Formed in the wintertime by convection driven by the most intense air–sea fluxes observed anywhere over the globe, the role of mode waters in the general circulation of the subtropical gyre and its biogeo-chemical cycles is also addressed. The experiment is known as the CLIVAR Mode Water Dynamic Experiment (CLIMODE). Here we review the scientific objectives of the experiment and present some preliminary results.
    Description: Physical Oceanography program of NSF
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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  • 9
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    Objectively analyzed air-sea heat fluxes for the global ice-free oceans (1981-2005) (2010)
    American Meteorological Society
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2007. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Bulletin of the American Meteorological Society 88 (2007): 527-539, doi:10.1175/bams-88-4-527.
    Description: A 25-yr (1981–2005) time series of daily latent and sensible heat fluxes over the global ice-free oceans has been produced by synthesizing surface meteorology obtained from satellite remote sensing and atmospheric model reanalyses outputs. The project, named Objectively Analyzed Air–Sea Fluxes (OAFlux), was developed from an initial study of the Atlantic Ocean that demonstrated that such data synthesis improves daily flux estimates over the basin scale. This paper introduces the 25-yr heat flux analysis and documents variability of the global ocean heat flux fields on seasonal, interannual, decadal, and longer time scales suggested by the new dataset. The study showed that, among all the climate signals investigated, the most striking is a long-term increase in latent heat flux that dominates the data record. The globally averaged latent heat flux increased by roughly 9 W m−2 between the low in 1981 and the peak in 2002, which amounted to about a 10% increase in the mean value over the 25-yr period. Positive linear trends appeared on a global scale, and were most significant over the tropical Indian and western Pacific warm pool and the boundary current regions. The increase in latent heat flux was in concert with the rise of sea surface temperature, suggesting a response of the atmosphere to oceanic forcing.
    Description: The authors gratefully acknowledge support from NOAA through the Cooperative Institute for Climate and Oceanic Research (CICOR) at the Woods Hole Oceanographic Institution (WHOI). Supporting NOAA grants are from the Office of Climate Observations (OCO) and Climate Change Data and Detection (CCDD).
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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    PAPER (OA)
  • 10
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    At Sea Test 2 deployment cruise : cruise 475 on board R/V Oceanus September 22 – 26, 2011 Woods Hole –Woods Hole, MA (2012)
    Woods Hole Oceanographic Institution
    Details
    Publication Date: 2022-05-25
    Description: The R/V Oceanus, on Cruise 475, carried out the deployment of three moorings for the Coastal and Global Scale Nodes (CGSN) Implementing Organization of the NSF Ocean Observatories Initiative. These three moorings are prototypes of the moorings to be used by CGSN at the Pioneer, Endurance, and Global Arrays. Oceanus departed from Woods Hole, Massachusetts on September 22, 2011 and steamed south to the location of the mooring deployments on the shelf break. Over three days, September 23-25, Oceanus surveyed the bottom at the planned mooring sites, deployed the moorings, and carried out on site verification of the functioning of the moorings and moored hardware. Oceanus returned to Woods Hole on September 26, 2011.
    Description: Funding was provided by the National Science Foundation through the Consortium for Ocean Leadership
    Keywords: Oceanus (Ship : 1975-) Cruise OC475 ; Oceanographic buoys ; Oceanography
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: application/pdf
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