CanWIN ERDDAP
The Canadian Watershed Information Networks' ERDDAP server making scientific data more accessible

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Data Access Form

Dataset Title:	Physical Ice Sampling Data
Institution:	Centre for Earth Observation Science, University of Manitoba (Dataset ID: physical_ice_61b5_9ec0_ae15)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Files \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

Site_ID

latitude (degrees_north)

longitude (degrees_east)

time (Date, UTC)

Time_UTC

Depth_Top_cm (Depth)

Depth_Bot_cm (Depth)

SAL_PSU

0.0

2.4

Cond_mS_cm

0.01899

3.46

Temp_C

13.7

14.1

Server-side Functions

distinct()

Hover here to see a list of options. Click on an option to select it.

File type: (more info)

(Documentation / Bypass this form )

(Please be patient. It may take a while to get the data.)

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Site_ID {
    Byte actual_range 1, 1;
    String ioos_category "Identifier";
    String long_name "Site ID";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 74.357918, 74.357918;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "Latitude_DecDeg";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -128.465103, -128.465103;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "Longitude_DecDeg";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2855456e+9, 1.2855456e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date";
    String source_name "Date";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  Time_UTC {
    String ioos_category "Time";
    String long_name "Time UTC";
  }
  Depth_Top_cm {
    Byte actual_range 0, 55;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
  }
  Depth_Bot_cm {
    Byte actual_range 5, 60;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String standard_name "depth";
  }
  SAL_PSU {
    Float32 _FillValue -9999.0;
    Float32 actual_range 0.0, 2.4;
    String ioos_category "Salinity";
    String long_name "SAL PSU";
  }
  Cond_mS_cm {
    Float32 _FillValue -9999.0;
    Float32 actual_range 0.01899, 3.46;
    String ioos_category "Unknown";
    String long_name "Cond M S Cm";
  }
  Temp_C {
    Float32 _FillValue -9999.0;
    Float32 actual_range 13.7, 14.1;
    String ioos_category "Unknown";
    String long_name "Temp C";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Centre for Earth Observation Science, University of Manitoba";
    String creator_type "institution";
    String creator_url "https://umanitoba.ca/ceos/";
    String data_curator "CanWIN";
    String data_curator_affiliation "Centre for Earth Observation Science";
    Float64 Easternmost_Easting -128.465103;
    String featureType "Point";
    Float64 geospatial_lat_max 74.357918;
    Float64 geospatial_lat_min 74.357918;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -128.465103;
    Float64 geospatial_lon_min -128.465103;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-10-31T03:24:47Z (local files)
2025-10-31T03:24:47Z http://CanWINerddap.ad.umanitoba.ca/erddap/tabledap/physical_ice_61b5_9ec0_ae15.html";
    String infoUrl "https://umanitoba.ca/ceos/";
    String institution "Centre for Earth Observation Science, University of Manitoba";
    String keywords "altimetry, centre, cond, Cond_mS_cm, data, date, depth, Depth_Bot_cm, Depth_Top_cm, earth, ice, identifier, laboratory, latitude, longitude, manitoba, observation, physical, practical, psu, sal, SAL_PSU, salinity, sampling, satellite, science, site, Site_ID, Temp_C, temperature, time, Time_UTC, unit, university";
    String license "Creative Commons Attribution 4.0 International";
    Float64 Northernmost_Northing 74.357918;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 74.357918;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "Site_ID, latitude, longitude, time, Time_UTC";
    String summary "Physical Ice Sampling Data. Centre for Earth Observation Science, University of Manitoba data from a local source.";
    String time_coverage_end "2010-09-27";
    String time_coverage_start "2010-09-27";
    String title "Physical Ice Sampling Data";
    Float64 Westernmost_Easting -128.465103;
  }
}

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 (external link)

Data Access Protocol (DAP) (external link)

and its selection constraints (external link)

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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