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  • 106-Mile Dumpsite Oceanographic Project (Mid Atlantic Bight); Surface Drifters and Hydrographic Measurements; NOAA/NOS

    https://cmr.earthdata.nasa.gov/search/concepts/C1214422215-SCIOPS.xml
    Description:

    The 106-Mile Dumpsite Oceanographic project is response to the Ocean Dumping Act (http://www.epa.gov/history/topics/mprsa/02.htm) which directs the National Oceanic and Atmospheric Administration (NOAA), the US Environmental Protection Agency (EPA), and the US Coast Guard to perform research, monitoring, and surveillance until ocean dumping of municipal sewage sludge is ended in 1992. NOAA is responsible for research and monitoring of the far-field and long-term effects of dumping at the dumpsite, which is located in the Mid-Atlantic Bight (MAB). Four 1991 seasonal deployments of four satellite-tracked drifters each and a single 1990 deployment of eight drifters were conducted across the continental shelf break and Dumpsite. The tracking and processing of near-surface drifters continues. Coupled with EPA weekly drifter deployments, the CEOB drifter study provides information on the relationship between suspended sludge dispersal to the near-surface circulation and interaction of shelf water, slope water, and Gulf Stream over the continental margin in the MAB. Hydrographic studies include quasi-synoptic conductivity and temperature profile and expendable bathythermograph (XBT) surveys of the MAB and dumpsite. These surveys were conducted in support of biological and chemical sampling and in conjunction with the deployment of drifters. Weekly transects were taken across the shelf, slope, and northern tip of the Dumpsite to the Gulf Stream from the ship of opportunity, M/V OLEANDER; this was an expansion of the monthly program managed by National Marine Fisheries Service's Northeast Fisheries Center, in Narragansett, Rhode Island.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 37 -74 41 -70

    SCIOPS Short Name: OES_CEOB_106_MILE Version ID: Not provided Unique ID: C1214422215-SCIOPS

  • 12 Hourly Interpolated Surface Air Pressure from Buoys

    https://cmr.earthdata.nasa.gov/search/concepts/C1214600618-SCIOPS.xml
    Description:

    Optimally interpolated atmospheric surface pressure over the Arctic Ocean Basin. Temporal format - twice daily (0Z and 12Z) Spatial format - 2 degree latitude x 10 degree longitude - latitude: 70 N - 90 N - longitude: 0 E - 350 E

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 70 -180 90 180

    SCIOPS Short Name: 12_hourly_interpolated_surface_air_pressure_from_buoys Version ID: Not provided Unique ID: C1214600618-SCIOPS

  • 12,000 year record of sea spray and minerogenic input from Emerald Lake, Macquarie Island

    https://cmr.earthdata.nasa.gov/search/concepts/C2102891784-AU_AADC.xml
    Description:

    Reconstructed sea spray and minerogenic data for a 12,000 year lake sediment record from Emerald Lake, Macquarie Island. Proxies are based on biological (diatoms) and geochemical (micro x-ray fluorescence and hyperspectral imaging) indicators. Data correspond to the figures in: Saunders et al. 2018 Holocene dynamics of the Southern Hemisphere westerly winds and possible links to CO2 outgassing. Nature Geoscience 11:650-655. doi.org/10.1038/s41561-018-0186-5. Detailed supplementary information: https://static-content.springer.com/esm/art%3A10.1038%2Fs41561-018-0186-5/MediaObjects/41561_2018_186_MOESM1_ESM.pdf Abstract: The Southern Hemisphere westerly winds (SHW) play an important role in regulating the capacity of the Southern Ocean carbon sink. They modulate upwelling of carbon-rich deep water and, with sea ice, determine the ocean surface area available for air–sea gas exchange. Some models indicate that the current strengthening and poleward shift of these winds will weaken the carbon sink. If correct, centennial- to millennial-scale reconstructions of the SHW intensity should be linked with past changes in atmospheric CO2, temperature and sea ice. Here we present a 12,300-year reconstruction of wind strength based on three independent proxies that track inputs of sea-salt aerosols and minerogenic particles accumulating in lake sediments on sub-Antarctic Macquarie Island. Between about 12.1 thousand years ago (ka) and 11.2 ka, and since about 7 ka, the wind intensities were above their long-term mean and corresponded with increasing atmospheric CO2. Conversely, from about 11.2 to 7.2 ka, the wind intensities were below their long-term mean and corresponded with decreasing atmospheric CO2. These observations are consistent with model inferences of enhanced SHW contributing to the long-term outgassing of CO2 from the Southern Ocean.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -54.77772 158.77441 -54.4828 158.94951

    AU_AADC Short Name: AAS_4156_Macquarie_Island_Emerald_Lake Version ID: 1 Unique ID: C2102891784-AU_AADC

  • 12-Hourly Interpolated Surface Position from Buoys

    https://cmr.earthdata.nasa.gov/search/concepts/C1214600619-SCIOPS.xml
    Description:

    This data set contains Arctic Ocean daily buoy positions interpolated to hours 0Z and 12Z.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 60 -180 90 180

    SCIOPS Short Name: 12-hourly_interpolated_surface_position_from_buoys Version ID: Not provided Unique ID: C1214600619-SCIOPS

  • 12-Hourly Interpolated Surface Velocity from Buoys

    https://cmr.earthdata.nasa.gov/search/concepts/C1214600621-SCIOPS.xml
    Description:

    This data set contains 12-hourly interpolated surface velocity data from buoys. Point grid: Latitude 74N to 90N - 4 degree increment Longitude 0E to 320E - 20 and 40 degree increment.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 74 -180 90 180

    SCIOPS Short Name: 12-hourly_interpolated_surface_velocity_from_buoys Version ID: Not provided Unique ID: C1214600621-SCIOPS

  • 14C of soil CO2 from IPY ITEX Cross Site Comparison

    https://cmr.earthdata.nasa.gov/search/concepts/C1214602443-SCIOPS.xml
    Description:

    Study sites: Toolik Lake Field Station Alaska, USA 68.63 N, 149.57 W; Atqasuk, Alaska USA 70.45 N, 157.40 W; Barrow, Alaska, USA 71.30 N, 156.67 W; Latnjajaure, Sweden 68.35 N, 18.50 E; Falls Creek, Australia: Site 2-unburned 36.90 S 147.29 E; Site 3-burned 36.89 S 147.28 E. Additional sites will be added summer 2008, but the exact sites are not finalized. Purpose: Collect soil CO2 for analysis of radiocarbon to evaluate the age of the carbon respired in controls and warmed plots from across the ITEX network. Treatments: control and ITEX OTC warming experiment (1994-2007). Design: 5 replicates of each treatment at dry site and moist site. Sampling frequency: Once per peak season.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -36.9 -157.4 71.3 147.29

    SCIOPS Short Name: 14c_of_soil_co2_from_ipy_itex_cross_site_comparison Version ID: Not provided Unique ID: C1214602443-SCIOPS

  • 15 Minute Stream Flow Data: USGS (FIFE)

    https://cmr.earthdata.nasa.gov/search/concepts/C179003030-ORNL_DAAC.xml
    Description:

    USGS 15 minute stream flow data for Kings Creek on the Konza Prairie

    Links: Temporal Extent: Spatial Extent:
    Point: 39.1 -96.6

    ORNL_DAAC Short Name: FIFE_STRM_15M_1 Version ID: 1 Unique ID: C179003030-ORNL_DAAC

  • 15 year Wilhelm II Land MSA and HOOH shallow ice core record from Mount Brown South (MBS)

    https://cmr.earthdata.nasa.gov/search/concepts/C1214313640-AU_AADC.xml
    Description:

    This work presents results from a short firn core spanning 15 years collected from near Mount Brown, Wilhelm II Land, East Antarctica. Variations of methanesulphonic acid (MSA) at Mount Brown were positively correlated with sea-ice extent from the coastal region surrounding Mount Brown (60-1208 E) and from around the entire Antarctic coast (0-3608 E). Previous results from Law Dome identified this MSA-sea-ice relationship and proposed it as an Antarctic sea-ice proxy (Curran and others, 2003), with the strongest results found for the local Law Dome region. Our data provide supporting evidence for the Law Dome proxy (at another site in East Antarctica), but a deeper Mount Brown ice core is required to confirm the sea-ice decline suggested by Curran and others (2003). Results also indicate that this deeper record may also provide a more circum-Antarctic sea-ice proxy. This work was completed as part of ASAC project 757 (ASAC_757).

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -69.13 86.082 -69.12 86.084

    AU_AADC Short Name: mbs_wilhelm_msa_hooh Version ID: 1 Unique ID: C1214313640-AU_AADC

  • 150 year MSA sea ice proxy record from Law Dome, Antarctica

    https://cmr.earthdata.nasa.gov/search/concepts/C1214313532-AU_AADC.xml
    Description:

    This MSA record (1841-1995) is from a Law Dome ice core called "DSS" in East Antarctica. It was calibrated against satellite sea ice records and used to reconstruct sea ice extent prior to the satellite era. The following is taken from the abstract of the paper (Curran et al., 2003). The instrumental record of Antarctic sea ice in recent decades does not reveal a clear signature of warming despite observational evidence from coastal Antarctica. This work shows a significant correlation (P less than 0.002) between methanesulphonic acid (MSA) concentrations from a Law Dome ice core and 22 years of satellite-derived sea ice extent (SIE) for the 80 degrees E to 140 degrees E sector. Applying this instrumental calibration to longer term MSA data (1841 to 1995 A.D.) suggests that there has been a 20% decline in SIE since about 1950. The decline is not uniform, showing large cyclical variations, with periods of about 11 years, that confuse trend detection over the relatively short satellite era. This work was completed as part of ASAC project 757 (ASAC_757).

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -66.76972 112.806946 -66.76972 112.806946

    AU_AADC Short Name: law_dome_annual_msa Version ID: 1 Unique ID: C1214313532-AU_AADC

  • 17O Excess from WAIS Divide, 0 to 25 ka BP, Version 1

    https://cmr.earthdata.nasa.gov/search/concepts/C1386205647-NSIDCV0.xml
    Description:

    This data set contains the VSMOW-SLAP d17O, d18O, and 17O-excess data from the WAIS Divide Ice Core Project, Siple Dome and Taylor Dome, along with the published and VSMOW-SLAP normalized d17O, d18O, and 17O-excess for Vostok [Landais et al. 2008], EPICA Dome C and Talos Dome [Winkler et al., 2012]. The data cover the Last Glacial Maximum (25-20 ka), through the Early Holocene (12-9 ka) and into present-day (past 2 kyr)

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -77.79 -158.72 -77.79 -158.72

    NSIDCV0 Short Name: NSIDC-0596 Version ID: 1 Unique ID: C1386205647-NSIDCV0