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  • 1
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    On the characteristics of Circumpolar Deep Water intrusions to the west Antarctic Peninsula Continental Shelf (2010)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2009. 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 114 (2009): C05017, doi:10.1029/2008JC004955.
    Description: Hydrographic and current velocity observations collected from March 2001 to February 2003 on the west Antarctic Peninsula shelf as part of the Southern Ocean Global Ecosystems Dynamics program are used to characterize intrusions of Upper Circumpolar Deep Water (UCDW) and Lower Circumpolar Deep Water (LCDW) onto the shelf and Marguerite Bay. UCDW is found on the middle and outer shelf along Marguerite Trough, which connects the shelf break to Marguerite Bay, and at another location farther south. UCDW intrudes in the form of frequent (four per month) and small horizontal scales (≈4 km) warm eddy-like structures with maximum vertical scales of a few hundred meters. However, no evidence of UCDW intrusions was found in Marguerite Bay. LCDW was found in several deep depressions connected to the shelf break, including Marguerite Trough, forming a tongue of relatively dense water 95 m thick (on average) that reaches into Marguerite Bay through Marguerite Trough. A steady advective-diffusive balance for the LCDW intrusion is used to make an estimation of the average upwelling rate and diffusivity in the deep layer within Marguerite Trough, which suggest the LCDW layer is renewed approximately every six weeks.
    Description: This work was supported by the National Science Foundation Office of Polar programs through U.S. Southern Ocean GLOBEC grants OPP 99- 10092 and 06-23223. C. Moffat also received support from the Chilean government through its Presidential Fellowship program and the Coastal Ocean Institute at WHOI and the Cooperative Institute for Climate and Ocean Research at WHOI.
    Keywords: Coastal oceanography ; Polar ocean
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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  • 2
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    Southern Ocean GLOBEC moored array and automated weather station data report (2005)
    Woods Hole Oceanographic Institution
    Details
    Publication Date: 2022-05-26
    Description: Southern Ocean GLOBal ocean ECosystems
    Description: As part of the U.S. Southern Ocean GLOBEC program, moored time series measurements of temperature, conductivity (salinity), pressure, velocity, and acoustic backscatter were made from March 2001 to March 2003 in and near Marguerite Bay, located on the Antarctic Peninsula western shelf. To monitor surface forcing during the moored array observations, two automatic weather stations (AWSs) were deployed on islands in Marguerite Bay and time series of wind, air temperature, pressure, and relative humidity were collected from May 2001 through March 2003. This report describes the individual moorings, their locations and local bathymetry, the instrumentation used and measurement depths, calibration and data processing steps taken to produce final time series, and basic plots of the final time series. The AWS data acquisition and processing are also described and basic plots of the final meteorological time series presented. Directions are given about how to access the raw and processed moored and AWS data via the SO GLOBEC website (http://globec.whoi.edu/jg/dir/globec/soglobec/).
    Description: Funding was provided by the National Science Foundation under contract number OPP-99-10092.
    Keywords: SO GLOBEC ; Antarctica ; Coastal oceanography ; Laurence M. Gould (Ship) Cruise LMG01-03 ; Laurence M. Gould (Ship) Cruise LMG02-1A ; Laurence M. Gould (Ship) Cruise LMG03-02 ; Nathaniel B. Palmer (Ship) Cruise NBP01-03
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 10401290 bytes
    Format: application/pdf
    Location Call Number Limitation Availability
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