IEDA
Dataset Information
Gridded Values of Conservative Temperature and Absolute Salinity Around Antarctica averaged for the depth range 300 m to min([water depth, 1000]) m
Data DOI:
https://doi.org/10.15784/601516
Cite as
Howard, S. L., Little, C., Padman, L., & Sun, Q. (2022) "Gridded Values of Conservative Temperature and Absolute Salinity Around Antarctica averaged for the depth range 300 m to min([water depth, 1000]) m" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601516.
Abstract
This dataset contains NetCDF files of two-dimensional gridded fields of hydrographic properties, Conservative Temperature (CT) and Absolute Salinity (SA), around Antarctica, depth-averaged for the depth range 300 m to min([water depth, 1000]) m from 38 CMIP6 models, the World Ocean Atlas 2018, and our own product developed from the World Ocean Database. These fields are designed to represent the hydrography of deeper water masses on the Antarctic Continental Shelf (ACS), where typical water depths are 400-600 m, and the intermediate-depth water off the continental shelf. The dataset includes a high-resolution polar-stereographic grid (2 x 2 km) of Southern Ocean geometry, including water depth, elevation of the land and ice-sheet surface (including ice shelves), a mask (identifying water, land and grounded ice, and ice shelves), and offshore distance from the continental shelf break. An example MATLAB script for accessing the grids and plotting them is included. The primary purpose of this dataset is to provide simplified 2-D hydrographic fields that can be used to assess the performance of climate models for the ACS, focusing on the depth range that affects most basal melting of Antarctica’s ice shelves.
Creator(s):
Howard, Susan L.; Little, Chris; Sun, Qiang; Padman, Laurence
Date Created:
2022-02-01
Repository:
USAP-DC (current)
Spatial Extent(s)
West: -180, East: 180, South: -90, North: -60
Temporal Extent(s)
Start: 1841-01-18 - End: 2020-12-31
Version:
1
References
  1. Sun, Q., Little, C. M., Barthel, A. M., and Padman, L. (2021). A clustering-based approach to ocean model–data comparison around Antarctica, Ocean Sci., 17, 131–145, https://doi.org/10.5194/os-17-131-2021. (doi:10.5194/os-17-131-2021)
  2. Adusumilli, S., Fricker, H. A., Medley, B., Padman, L., and Siegfried, M. R. (2020). Interannual variations in meltwater input to the Southern Ocean from Antarctic ice shelves. Nat. Geosci. 13, 616–620. https://doi.org/10.1038/s41561-020-0616-z (doi:10.1038/s41561-020-0616-z)
Supplemental Docs
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README_601516.txt
Data Files
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193.8 MB
ACS_Geometry_grid.zip

MD5 Checksum: 4c680429f242c44c1865fb75e5a9c7b4 File Type: NetCDF

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11.6 MB
CIMP6_model_avg.zip

MD5 Checksum: 8fff1288555695a79b627a4861164b18 File Type: NetCDF

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699.9 kB
README_ACS_CMIP6.pdf

MD5 Checksum: 252dd999f2836f2832285383ff0c1566 File Type: Readme Text File

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2.0 MB
WOA18_300-1000m_avg.zip

MD5 Checksum: 50e97b33d653bd434eace4bc64c6af35 File Type: NetCDF

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5.7 MB
WOD_300-1000m_avg.zip

MD5 Checksum: 755e98a6e26be7485d3b0292fc54c106 File Type: NetCDF

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