USAP-DC

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Cape Adare Long Term Moorings (CALM): Analysis Phase Start Date: 2012-06-01 End Date: 2015-05-31 Description/Abstract Time series data, from ocean moorings, on key aspects of evolving ocean properties are of considerable importance in assessing the condition of the ocean system. They are needed, for example, their understand how the oceans are warming, and how they continue to uptake greenhouse gases such as CO2. The Cape Adare Long Term Mooring (CALM) program goal was to observe the bottom water export from the Ross Sea to the deep ocean. To accomplish this two instrumented moorings were set on the continental slope off Cape Adare (western Ross Sea, Antarctica), positioned to capture the export of Antarctic Bottom Water (AABW), some of the coldest and densest water found in the global ocean. Data records for the moorings spans over some four years in this very remote part of the ocean. The CALM analysis will address some specific objectives: ? Characterize the temperature, salinity and current variability associated with the Ross Sea AABW export. ? Examine the linkages between observed variability to regional tides, atmosphere and sea ice forcing. ? Relate the Ross Sea AABW export fluctuations to the larger scale climate system dynamics, such as ENSO and SAM, and to AABW formation along other margins of Antarctica, e.g. the Weddell Sea Personnel Person Role Huber, Bruce Investigator Vernet, Maria Investigator Funding Antarctic Ocean and Atmospheric Sciences Award # 1141890 AMD - DIF Record(s) NBP1203 Data Management Plan None in the Database Product Level: Not provided Datasets Repository Title (link) Format(s) Status R2R Expedition Data of NBP1203 None exist USAP-DC Processed ship-based LADCP Sonar Data from the Larsen Ice Shelf near Antarctica acquired during the Nathaniel B. Palmer expedition NBP1203 Excel exists USAP-DC Processed CTD Data from the Larsen Ice Shelf near Antarctica acquired during the Nathaniel B. Palmer expedition NBP1203 Excel exists Publications Cheon, W. G., Lee, S.-K., Gordon, A. L., Liu, Y., Cho, C.-B., & Park, J. J. (2015). Replicating the 1970s’ Weddell Polynya using a coupled ocean-sea ice model with reanalysis surface flux fields. Geophysical Research Letters, 42(13), 5411–5418. (doi:10.1002/2015gl064364) Gordon, A. L., Huber, B. A., & Busecke, J. (2015). Bottom water export from the western Ross Sea, 2007 through 2010. Geophysical Research Letters, 42(13), 5387–5394. (doi:10.1002/2015gl064457) Platforms and Instruments ADCP AWS CTD ECHO SOUNDERS FLUOROMETERS GPS MBES R/V NBP THERMOSALINOGRAPHS XBT