SPI - Trace gas mixing ratios measured over the Southern Ocean in the austral summer of 2016/2017, during the Antarctic Circumnavigation Expedition.

Project: Paul Scherrer Institute, Villigen, Switzerland Name: Julia Schmale Institution: Paul Scherrer Institute, Villigen, Switzerland InfoURL: https://doi.org/10.5281/zenodo.4028749 Source URL: (local files) SPI - Trace gas mixing ratios measured over the Southern Ocean in the austral summer of 2016/2017, during the Antarctic Circumnavigation Expedition. Unknown tabular digital data Anywhere, MD, USA ERDDAP, version 2.27.0, at Set-me Institution https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph Paul Scherrer Institute, Villigen, Switzerland The authors would highly appreciate to be contacted if the data is used for any purpose. We measured mixing ratios of CO, CO2 and CH4 with a PICARRO G2401 Gas Analyzer. Ozone (O3) mixing ratios were measured with a 2B Technology ozone monitor, model 205. We report five-minute averaged data cleaned from exhaust gas influence. Temporal coverage is from December 20, 2016 to April 10, 2017. The trace gas concentrations represent a large number of atmospheric processes that happen on different time scales. CO for example, has basically no sources other than combustion and can hence be used as tracer for air mass transport from regions with combustion activities (e.g., South Africa). CO has a lifetime of a few weeks. CO2 and CH4 are longer-lived trace gases which disperse globally. The data set shows that concentrations in the Northern Hemisphere are higher than in the Southern Hemisphere. Both trace gases are emitted by anthropogenic activities as well as natural sources. Over the cruise track, areas of the Southern Ocean were passed where these trace gases either outgas or are absorbed. Ozone is a secondary trace gas, meaning that it is formed in the atmosphere. Its concentrations are relatively low. All trace gases data have been cleaned from exhaust gas influence. Unknown https://doi.org/10.5281/zenodo.4028749 20161217 20170410 ground condition Complete As needed -179.99342 179.99936 53.97401 -74.00771 Uncontrolled ACE ACE-SPACE Antarctic Circumnavigation Expedition Antarctica carbon dioxide carbon monoxide CO CO2 CO4 methane O3 ozone Southern Ocean trace gas CF Standard Name Table v55 time latitude longitude None. CC-BY-4.0 Paul Scherrer Institute, Villigen, Switzerland Julia Schmale Unknown Mailing and Physical Address

Unknown

Unknown Unknown Unknown Unknown Unknown Unknown https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph Web page to make a customized map or graph of the data HTML Unknown Unknown Unknown Unknown Unknown Unknown Point Point Set-me Institution Firstname Surname ERDDAP Administrator Mailing and Physical Address

123 Simons Ave.

Anywhere MD 12345 USA 555-555-5555 set-me@domain.com ERDDAP, version 2.27.0: get metadata; download data; make graphs and maps. CC-BY-4.0 .ncCFMA 1 Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). https://www.ncei.noaa.gov/netcdf-templates https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .csv0 1 Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. https://en.wikipedia.org/wiki/Comma-separated_values https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .csv 1 Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). https://en.wikipedia.org/wiki/Comma-separated_values https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .xhtml 1 View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. https://www.w3schools.com/html/html_tables.asp https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .htmlTable 1 View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. https://www.w3schools.com/html/html_tables.asp https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .ncoJson 1 Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. https://nco.sourceforge.net/nco.html#json https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .ncHeader 1 View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. https://linux.die.net/man/1/ncdump https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .parquet 1 Download as a parquet file. Metadata contains column names ("column_names") and units ("column_units"). https://parquet.apache.org/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .nc 1 Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. https://www.unidata.ucar.edu/software/netcdf/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .asc 1 View OPeNDAP-style ISO-8859-1 comma-separated text. https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#ASCII_Service https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .jsonlCSV1 1 View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). https://jsonlines.org/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .csvp 1 Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. https://en.wikipedia.org/wiki/Comma-separated_values https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .dataTable 1 A JSON file formatted for use with the Google Visualization client library (Google Charts). https://developers.google.com/chart/interactive/docs/reference#dataparam https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .json 1 View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). https://www.json.org/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .fgdc 1 View the dataset's UTF-8 FGDC .xml metadata. https://www.fgdc.gov/standards/projects/FGDC-standards-projects/metadata/base-metadata/index_html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .tsv0 1 Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. https://jkorpela.fi/TSV.html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .itx 1 Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. https://www.wavemetrics.net/doc/igorman/II-09%20Data%20Import%20Export.pdf https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .wav 1 Download a .wav audio file. All columns must be numeric and of the same type. https://en.wikipedia.org/wiki/WAV https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .odvTxt 1 Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). https://odv.awi.de/en/documentation/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .iso19115 1 View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. https://en.wikipedia.org/wiki/Geospatial_metadata https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .parquetWMeta 1 Download as a parquet file. Metadata contains column names ("column_names") and units ("column_units"). https://parquet.apache.org/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .ncCFHeader 1 View the UTF-8 header (the metadata) for the .ncCF file. https://linux.die.net/man/1/ncdump https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .mat 1 Download a MATLAB binary file. https://www.mathworks.com/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .esriCsv 1 Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). https://support.esri.com/technical-article/000012745 https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .nccsvMetadata 1 View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. https://erddap.github.io/docs/user/nccsv-1.20 https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .jsonlCSV 1 View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). https://jsonlines.org/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .jsonlKVP 1 View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). https://jsonlines.org/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .tsv 1 Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). https://jkorpela.fi/TSV.html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .dods 1 OPeNDAP clients use this to download the data in the DODS binary format. https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Data_Transmission https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .das 1 View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Dataset_Attribute_Structure https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .geoJson 1 Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. http://wiki.geojson.org/Main_Page https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .ncCF 1 Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). https://cfconventions.org/Data/cf-conventions/cf-conventions-1.8/cf-conventions.html#discrete-sampling-geometries https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .tsvp 1 Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. https://jkorpela.fi/TSV.html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .ncCFMAHeader 1 View the UTF-8 header (the metadata) for the .ncCFMA file. https://linux.die.net/man/1/ncdump https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .dds 1 View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Dataset_Descriptor_Structure https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .nccsv 1 Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. https://erddap.github.io/docs/user/nccsv-1.20 https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.html .kml 1 View a .kml file, suitable for Google Earth. https://developers.google.com/kml/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph .smallPng 1 View a small .png image file with a graph or map. http://www.libpng.org/pub/png/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph .largePng 1 View a large .png image file with a graph or map. http://www.libpng.org/pub/png/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph .png 1 View a standard, medium-sized .png image file with a graph or map. http://www.libpng.org/pub/png/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph .smallPdf 1 View a small .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph .transparentPng 1 View a .png image file (just the data, without axes, landmask, or legend). http://www.libpng.org/pub/png/ https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph .largePdf 1 View a large .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph .pdf 1 View a standard, medium-sized .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html https://erddap.emodnet-physics.eu/erddap/tabledap/SPI_10_5281_zenodo_2636778.graph None 20260513 Set-me Institution Firstname Surname ERDDAP Administrator Mailing and Physical Address

123 Simons Ave.

Anywhere MD 12345 USA 555-555-5555 set-me@domain.com Content Standard for Digital Geospatial Metadata FGDC-STD-012-2002 universal time None. CC-BY-4.0