ERDDAP > tabledap > Data Access Form

Dataset Title:	Northern Hemisphere Extratropical Cyclone Tracks from ERA-5
Institution:	Centre for Earth Observation Science - University of Manitoba   (Dataset ID: Alex_Crawford_NH_cyclone_data_3e70_09c6_75db)
Information:	Summary | License | Metadata | Background | Subset | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
url	!= =~ <= >= = < >		!= =~ <= >= = < >
name (File Name)	!= =~ <= >= = < >		!= =~ <= >= = < >
lastModified (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2024-04-03T15:01:06Z	2024-10-28T17:12:04Z
size (bytes)	!= =~ <= >= = < >		!= =~ <= >= = < >		4038409.0	5234936.0
fileType	!= =~ <= >= = < >		!= =~ <= >= = < >		".zip"

 

Server-side Functions

distinct()

orderBy orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean (" url name lastModified size fileType url name lastModified size fileType url name lastModified size fileType url name lastModified size fileType url name lastModified size fileType ")

File type: (more info) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .dataTable - A JSON file formatted for use with the Google Visualization client library (Google Charts). .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

(Documentation / Bypass this form )
 
Submit (Please be patient. It may take a while to get the data.)

 

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  url {
    String ioos_category "Identifier";
    String long_name "URL";
  }
  name {
    String ioos_category "Identifier";
    String long_name "File Name";
  }
  lastModified {
    String ioos_category "Time";
    String long_name "Last Modified";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  size {
    String ioos_category "Other";
    String long_name "Size";
    String units "bytes";
  }
  fileType {
    String ioos_category "Identifier";
    String long_name "File Type";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Data_collection_end_date "2020-10-13";
    String Data_collection_start_date "1979-01-01";
    String Dataset_Author "Crawford, Alex";
    String Dataset_Author_Affiliation "Centre for Earth Observation Science - University of Manitoba";
    String Dataset_Author_Email "alex.crawford@umanitoba.ca";
    String Dataset_Contributor_1 "Barber, David";
    String Dataset_Contributor_2 "Dahl-Jensen, Dorthe";
    String Dataset_Contributor_3 "Stroeve, Julienne C";
    String Dataset_Contributor_4 "Serreze, Mark C";
    String Dataset_Contributor_5 "Sommer, Nathan";
    String Dataset_Contributor_Afiliation_1 "Centre for Earth Observation Science - University of Manitoba";
    String Dataset_Contributor_Afiliation_2 "Centre for Earth Observation Science - University of Manitoba";
    String Dataset_Contributor_Afiliation_3 "Centre for Earth Observation Science - University of Manitoba";
    String Dataset_Contributor_Afiliation_4 "National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder";
    String Dataset_Contributor_Afiliation_5 "College of Wooster";
    String Dataset_Contributor_Email_1 "Barber.David@umaniotba.ca";
    String Dataset_Contributor_Email_5 "nsommer@wooster.edu";
    String Dataset_Contributor_Role_1 "Supervisor";
    String Dataset_Contributor_Role_2 "Supervisor";
    String Dataset_Contributor_Role_3 "Supervisor";
    String Dataset_Contributor_Role_4 "ProjectMember";
    String Dataset_Contributor_Role_5 "ProjectMember";
    String Dataset_Maintenance_&_Update_Frequency "As needed";
    String Dataset_Status "Complete";
    String Dataset_Version "None";
    String history 
"2024-11-21T12:00:03Z (local files)
2024-11-21T12:00:03Z http://CanWINerddap.ad.umanitoba.ca/erddap/tabledap/Alex_Crawford_NH_cyclone_data_3e70_09c6_75db.html";
    String infoUrl "https://canwin-datahub.ad.umanitoba.ca/data/dataset/nsidc-extratropical-cyclone-tracking-cnect";
    String institution "Centre for Earth Observation Science - University of Manitoba";
    String Keywords_1 "Cyclone";
    String Keywords_2 "Modeling";
    String keywords_vocabulary "Polar Data Catalogue";
    String license "Creative Commons Attribution 4.0 International";
    String Research_Area "northern-hemisphere";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "fileType";
    String summary "This dataset comprises a series of CSV files, each of which catalogues a suite of information for an individual cyclone track for the Northern Hemisphere. Detection and tracking are conducted using version 13.2 of the Lagrangian cyclone detection and tracking algorithm described by Crawford et al. (2021). This algorithm is applied to sea-level pressure data from Version 5 of the European Centre for Medium-Range Weather Forecasts (ECMWF) Retrospective Analysis (ERA-5) at a 3-hour temporal reso...";
    String title "Northern Hemisphere Extratropical Cyclone Tracks from ERA-5";
    String Type "dataset";
  }
}

 

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Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP Data Access Protocol (DAP) and its selection constraints.

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

• (easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
• (easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
• (not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

 

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