Data Access Form

Dataset Title:	SPI - Cold and warm temperature advection mask for the Antarctic Circumnavigation Expedition from December 2016 – March 2017.
Institution:	Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland (Dataset ID: SPI_10_5281_zenodo_3973198)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Files \| Make a graph

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Variable	Minimum	Maximum
time (UTC)	2016-12-21T08:00:00Z	2017-03-18T04:00:00Z

maskcw_12h	-2147483647	1
maskcw_6h	-2147483647	1
maskcw_all	-2147483647	1
filter_sif	0	1
filter_lsm	0	1
latitude (degrees_north)	-74.0053383333333	-36.0498084266667

longitude (degrees_east)	-179.999965	179.955968333333

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    UInt32 _ChunkSizes 512;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4823072e+9, 1.4898096e+9;
    String axis "T";
    String description "time";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
    String x_spi_emodnet_visualise_variable "False";
  }
  maskcw_12h {
    UInt32 _ChunkSizes 1024;
    Int32 actual_range -2147483647, 1;
    String description "mask of all cold (-1) and warm (1) advection events of a length of at least 12h. (0) flags denote no cold or warm advection event.";
    String spi_original_name "maskcw_12h";
    String x_spi_emodnet_visualise_variable "True";
  }
  maskcw_6h {
    UInt32 _ChunkSizes 1024;
    Int32 actual_range -2147483647, 1;
    String description "mask of all cold (-1) and warm (1) advection events of a length of at least 6h. (0) flags denote no cold or warm advection event.";
    String spi_original_name "maskcw_6h";
    String x_spi_emodnet_visualise_variable "True";
  }
  maskcw_all {
    UInt32 _ChunkSizes 1024;
    Int32 actual_range -2147483647, 1;
    String description "mask of all cold (-1) and warm (1) advection events. (0) flags denote no cold or warm advection event.";
    String spi_original_name "maskcw_all";
    String x_spi_emodnet_visualise_variable "True";
  }
  filter_sif {
    UInt32 _ChunkSizes 1024;
    Int32 actual_range 0, 1;
    String description "filter for proximity to sea ice. (1) indicates time steps, when the ACE track was close to or within sea ice. (0) flags denote when track was not close to or within sea ice.";
    String spi_original_name "filter_sif";
    String x_spi_emodnet_visualise_variable "True";
  }
  filter_lsm {
    UInt32 _ChunkSizes 1024;
    Int32 actual_range 0, 1;
    String description "filter for proximity to land masses in the ECMWF model data. (1) indicates time steps, when the ACE track was close to land or to a model grid point which lies within land area. (0) flags denote when track was not close to or within land area.";
    String spi_original_name "filter_lsm";
    String x_spi_emodnet_visualise_variable "True";
  }
  latitude {
    UInt32 _ChunkSizes 512;
    String _CoordinateAxisType "Lat";
    Float64 actual_range -74.0053383333333, -36.0498084266667;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
    String x_spi_emodnet_visualise_variable "False";
  }
  longitude {
    UInt32 _ChunkSizes 512;
    String _CoordinateAxisType "Lon";
    Float64 actual_range -179.999965, 179.955968333333;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    String x_spi_emodnet_visualise_variable "False";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.7.2,hdf5=1.10.5";
    String cdm_data_type "Other";
    String citation "Thurnherr, I., Aemisegger, F. and Wernli, H. (2020). Cold and warm temperature advection mask for the Antarctic Circumnavigation Expedition from December 2016 – March 2017. (Version 1.1) [Data set]. Zenodo. doi: 10.5281/zenodo.3989318";
    String contributors "[{'title': 'Iris Thurnherr', 'path': 'https://orcid.ord/0000-0003-3647-0373', 'email': 'iris.thurnherr@env.ethz.ch', 'role': 'author', 'organisation': 'Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland'}, {'title': 'Franziska Aemisegger', 'path': 'https://orcid.ord/0000-0002-4022-9825', 'role': 'author', 'organisation': 'Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland'}, {'title': 'Heini Wernli', 'path': 'https://orcid.ord/0000-0001-9674-4837', 'role': 'author', 'organisation': 'Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland'}, {'title': 'Jenny Thomas', 'path': 'https://orcid.ord/0000-0002-5986-7026', 'role': 'publisher', 'organisation': 'Swiss Polar Institute'}]";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Iris Thurnherr";
    String creator_type "institution";
    String creator_url "https://orcid.ord/0000-0003-3647-0373";
    String DOI "https://doi.org/10.5281/zenodo.3989318";
    Float64 Easternmost_Easting 179.955968333333;
    Float64 geospatial_lat_max -36.0498084266667;
    Float64 geospatial_lat_min -74.0053383333333;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 179.955968333333;
    Float64 geospatial_lon_min -179.999965;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-12-22T02:47:04Z (local files)
2024-12-22T02:47:04Z http://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_3973198.html";
    String infoUrl "https://doi.org/10.5281/zenodo.3989318";
    String institution "Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland";
    String keywords "ACE, air mass advection, air-sea interaction, Antarctic Circumnavigation Expedition, Antarctica, Southern Ocean";
    String license "CC-BY-4.0";
    Float64 Northernmost_Northing -36.0498084266667;
    String platform_code "UBXH3_ace_3973198";
    String platform_name "R/V Akademik Tryoshnikov";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -74.0053383333333;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "This dataset contains a mask for the identification of cold and warm temperature advection along the Antarctic Circumnavigation Expedition (ACE) track based on a simple method using the difference between the sea surface and air temperature. This mask is a combination of measured air temperature during ACE and sea surface temperature fields from ECMWF operational analysis data.";
    String time_coverage_end "2017-03-18T04:00:00Z";
    String time_coverage_start "2016-12-21T08:00:00Z";
    String title "SPI - Cold and warm temperature advection mask for the Antarctic Circumnavigation Expedition from December 2016 – March 2017.";
    String type "ferrybox/ship";
    Float64 Westernmost_Easting -179.999965;
  }
}

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