ERDDAP
Easier access to the Hakai Institute data
Easier access to the Hakai Institute data
| Dataset Title: | High-resolution record of surface seawater carbon dioxide (CO2) content, water temperature, sea surface salinity and other parameters collected in Sitka Harbor, Alaska, USA 
|
| Institution: | Hakai Institute (Dataset ID: HakaiSitkaBoLResearch) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
station_id {
String cf_role "timeseries_id";
String long_name "Station";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.49631162e+9, 1.6195173e+9;
String axis "T";
String ioos_category "Time";
String long_name "Date Time";
String source_name "date_time";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String time_precision "1970-01-01T00:00:00Z";
String units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range 57.0526, 57.0526;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String ioos_category "Location";
String long_name "Latitude";
String source_name "Latitude (deg N)";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range -135.3456, -135.3456;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String ioos_category "Location";
String long_name "Longitude";
String source_name "Longitude (deg E)";
String standard_name "longitude";
String units "degrees_east";
}
TSG_T {
Float32 _FillValue -999.0;
Float32 actual_range 3.1858, 19.3353;
String long_name "Sea Water Temperature";
String scale "ITS-90";
String sensor_description "Seabird SBE45";
String sensor_type "CTD";
String standard_name "sea_surface_temperature";
String units "degC";
}
TSG_S {
Float32 _FillValue -999.0;
Float32 actual_range 17.0705, 31.5198;
String long_name "Sea Water Practical Salinity";
String sensor_description "Seabird SBE45";
String sensor_type "CTD";
String standard_name "sea_water_practical_salinity";
String units "1E-3";
}
corrected_xCO2 {
Float32 _FillValue NaN;
Float32 actual_range 126.1362, 743.8439;
String long_name "Corrected X CO2 (ppm)";
String units "ppm";
}
equilibrator_pressure {
Float32 _FillValue NaN;
Float32 actual_range 96.82423, 103.8459;
String long_name "Equilibrator Pressure (kPa)";
String units "kPa";
}
SWpCO2_TSG_T {
Float32 _FillValue NaN;
Float32 actual_range 127.6803, 734.5145;
String long_name "SWp CO2@TSG T (uatm)";
String units "uatm";
}
SWfCO2_TSG_T {
Float32 _FillValue NaN;
Float32 actual_range 127.675, 734.4868;
String long_name "SWf CO2@TSG T (uatm)";
String units "uatm";
}
SBE56_T {
Float32 _FillValue NaN;
Float32 actual_range 4.004629, 6.253504;
String long_name "SBE56 T (deg C)";
String standard_name "sea_water_temperature";
String units "degree_Celsius";
}
SST_TSG_T_minus_mean_delta_T {
Float32 _FillValue NaN;
Float32 actual_range 3.129876, 19.27938;
String long_name "Sea Surface Temperature";
String standard_name "sea_surface_temperature";
String units "degree_Celsius";
}
SWpCO2_SST {
Float32 _FillValue NaN;
Float32 actual_range 127.3786, 732.7789;
String long_name "SWp CO2@SST (uatm)";
String units "uatm";
}
SWfCO2_SST {
Float32 _FillValue NaN;
Float32 actual_range 127.3733, 732.7513;
String long_name "SWf CO2@SST (uatm)";
String units "uatm";
}
TA {
Float32 _FillValue NaN;
Float32 actual_range 1438.774, 2143.479;
String description "From Evans Et Al., 2019 Relationship";
String long_name "Total Alkalinity";
String units "umol/kg";
}
TCO2 {
Float32 _FillValue NaN;
Float32 actual_range 1376.069, 2070.025;
String long_name "TCO2 (umol/kg; Waters Et Al Constants)";
String units "umol/kg";
}
pH_T {
Float32 _FillValue NaN;
Float32 actual_range 7.77193, 8.436511;
String long_name "pH T (total Scale; Waters Et Al Constants)";
String standard_name "sea_water_ph_reported_on_total_scale";
String units "1";
}
Omega_arag {
Float32 _FillValue NaN;
Float32 actual_range 0.6303325, 3.262348;
String long_name "Omega Arag (Waters Et Al Constants)";
}
Omega_calc {
Float32 _FillValue NaN;
Float32 actual_range 1.044145, 5.207119;
String long_name "Omega Calc (Waters Et Al Constants)";
}
Revelle_factor {
Float32 _FillValue NaN;
Float32 actual_range 9.066612, 19.59086;
String long_name "Revelle Factor (Waters Et Al Constants)";
}
}
NC_GLOBAL {
String cdm_data_type "TimeSeries";
String cdm_timeseries_variables "station_id, latitude, longitude";
String contributor_email "wiley.evans at hakai.org";
String contributor_name "Wiley Evans";
String contributor_role "pointOfContact";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_address "1713 Hyacinthe Bay Road";
String creator_city "Campbell River";
String creator_country "Canada";
String creator_email "wiley.evans@hakai.org";
String creator_institution "Hakai Institute";
String creator_name "Evans, Wiley";
String creator_orcid "https://orcid.org/0000-0002-5450-0903";
String creator_ror "https://ror.org/02pry0c91";
String creator_type "person";
String creator_url "https://www.hakai.org/";
String date_created "2022-12-01";
String date_modified "2025-04-23T16:21:47.635Z";
String doi "https://doi.org/10.25921/9vnv-0g64";
Float64 Easternmost_Easting -135.3456;
String featureType "TimeSeries";
Float64 geospatial_lat_max 57.0526;
Float64 geospatial_lat_min 57.0526;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -135.3456;
Float64 geospatial_lon_min -135.3456;
String geospatial_lon_units "degrees_east";
String history
"2025-10-28T23:30:15Z https://www.nodc.noaa.gov/ocads/data/0208638.xml
2025-10-28T23:30:15Z https://catalogue.hakai.org/erddap/tabledap/HakaiSitkaBoLResearch.html";
String id "d049351d-b806-461f-85fb-451f100fd7d6";
String infoUrl "https://catalogue.hakai.org/dataset/ca-cioos_d049351d-b806-461f-85fb-451f100fd7d6";
String institution "Hakai Institute";
String instrument "CTD-Divers,SUPERCO2,SBE 45,Burke-o-Lator pCO2/TCO2 analyzer";
String keywords "CIOOS:inorganicCarbon, CIOOS:oxygen, CIOOS:seaSurfaceSalinity, CIOOS:seaSurfaceTemperature, coastal zone, ocean-atmosphere exchange, physical-chemical, salinit, water temperature";
String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
String license "https://creativecommons.org/licenses/by/4.0";
String metadata_form "https://hakaiinstitute.github.io/hakai-metadata-entry-form#/en/hakai/tV5qE0aUgaOjSVmgPgiZ6MyHuSy1/-NHZwyY9Qlk5leV5vMEV";
String metadata_link "https://catalogue.hakai.org/dataset/ca-cioos_d049351d-b806-461f-85fb-451f100fd7d6";
String naming_authority "ca.cioos";
Float64 Northernmost_Northing 57.0526;
String platform "land/onshore structure";
String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
String progress "onGoing";
String project "Oceanography";
String publisher_address "1002 Wharf Street";
String publisher_city "Victoria";
String publisher_country "Canada";
String publisher_email "info@hakai.org";
String publisher_institution "Hakai Institute";
String publisher_name "Hakai Institute";
String publisher_ror "https://ror.org/02pry0c91";
String publisher_type "institution";
String publisher_url "hakai.org";
String sourceUrl "https://www.nodc.noaa.gov/ocads/data/0208638.xml";
Float64 Southernmost_Northing 57.0526;
String standard_name_vocabulary "CF Standard Name Table v79";
String subsetVariables "station_id";
String summary "This dataset includes measurements of partial pressure of carbon dioxide (pCO2), sea surface salinity, sea surface temperature and other parameters collected in Sitka Harbor, Alaska, USA from 2017-06-01 to 2021-04-27. Sitka Tribe of Alaska’s Environmental Research Laboratory adjacent to Sitka Harbor, has been a site for shore-based and high-resolution measurement of surface seawater CO2 content since June 2017. Temperature, salinity, and CO2 partial pressure measurements are made near-continuously from a seawater sample line with an intake 50 m from shore and at a depth of 1 m in Sitka Harbor. The effort to collect these data is a collaboration between the Sitka Tribe of Alaska and the Hakai Institute with support from the Alaska Ocean Observing System.";
String time_coverage_end "2021-04-27T09:55:00Z";
String time_coverage_start "2017-06-01T10:07:00Z";
String title "High-resolution record of surface seawater carbon dioxide (CO2) content, water temperature, sea surface salinity and other parameters collected in Sitka Harbor, Alaska, USA";
Float64 Westernmost_Easting -135.3456;
}
}
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.
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.