The Data Access Portal has information in 3 columns. An outline of the content in these columns is provided above. When first entering the search interface, all potential datasets are listed. Datasets are indicated in the map and results tabulation elements which are located in the middle column. The order of results can be modified using the "Sort by" option in the left column. On top of this column is normally relevant guidance information to user presented as collapsible elements.
If the user want to refine the search, this can be done by constraining the bounding box search. This is done in the map - the listing of datasets is automatically updated. Date constraints can be added in the left column. For these to take effect, the user has to push the button marked search. In the left column it is also possible to specific text elements to search for in the datasets. Again pushing the button marked "Search" is necessary for these to take action. Complex search patterns can be constructed using logical operators and phrases embedded in quotation marks. Logical operators include AND, OR and NOT. Remember to add space around operators. Text strings that are not quoted are trated as separate words and will match any of the words (i.e. assuming the OR operator). E.g. in order to find WMO synoptic weather station data from Verlegenhuken use the search phrase: [synop AND verlegenhuken]. Searches are case insensitive.
Other elements indicated in the left and right columns are facet searches, i.e. these are keywords that are found in the datasets and all datasets that contain these specific keywords in the appropriate metadata elements are listed together. Further refinement can be done using full text, date or bounding box constraints. Individuals, organisations and data centres involved in generating or curating the datasets are listed in the facets in the right column.
Collections
Collections allows the user to search in subsets of the existing catalogue. The collections are primarily data management projects that have been incorporated in the ADC catalogue after the project has ended. In this context the ADC is the long term access solution for these data. The collections currently served through ADC include (datasets may belong to multiple data collections):
ADC is the full collection of this service CC is the CryoClim collection
In order to search a specific data collection select that collection. If no data collection is selected all collections are searched.
AeN are data related to the Nansen Legacy project and are better explored through the SIOS Data Access Point using the collection defined there which is available through this URL.
SIOS, InfraNOR, SIOSCD, SIOSAP, SESS_* are collections related to SIOS. These are better explored through the SIOS Data Access Portal
Some cleaning is pending between InfraNOR and SIOSIN, for some of the SESS collections.
Citation of data and service
Always remember to cite data when used!
Citation information for individual datasets is often provided in the metadata. However, not all datasets have this information embedded in the discovery metadata. On a general basis a citation of a dataset include the same components as any other citation:
author,
title,
year of publication,
publisher (for data this is often the archive where it is housed),
edition or version,
access information (a URL or persistent identifier, e.g. DOI if provided)
The information required to properly cite a dataset is normally provided in the discovery metadata the datasets.
If you use data retrieved through this portal, please acknowledge the Norwegian Meteorological Institute/Arctic Data Centre.
On many glaciers in Svalbard, three surface types are visible on SAR images, the dark glacier ice at the glacier's lower end, the brighter superimposed ice in the middle, and the white firn at the higher elevations. Surface classification of these types is valuable especially since the retreat or advance of the firn area provides information on the status of the glacier. While the snowline reacts immediately to annual changes, the firn area smoothes out these short-term changes and shows, similar to the glacier front, longer-term changes of the glaciers.
Glacier Firn Area Change is based on the "Glacier Surface Type - Svalbard" dataset, presenting the actual area value sper glacier and year as tabular data to be plotted graphically
The dataset contains different types of marine geological and geophysical data from Kongsfjorden, Svalbard: 1) a printed profile of precision depth recording (PDR) from 1994, 2) several printed side scan sonar images from Kongsfjorden obtained in 1992, 3) printed copies of bathymetry from the inner part of Kongsfjorden, and 4) a printed map navigation map. The material is in storage at the Norwegian Polar Institute.
On many glaciers in Svalbard, three surface types are visible on SAR images, the dark glacier ice at the glacier’s lower end, the brighter superimposed ice in the middle, and the white firn at the higher elevations. Surface classification of these types is valuable especially since the retreat or advance of the firn area provides information on the status of the glacier. While the snowline reacts immediately to annual changes, the firn area smoothes out these short-term changes and shows, similar to the glacier front, longer-term changes of the glaciers.
GST uses a Otsu three-category algorithm to separate the image into these three surface types for selected Svalbard glaciers. The method works very well on glacier with distinct surface types, the main weakness is crevasses and rough areas being classifed as superimposed ice. A quality number indicates if an individual classification is ideal (1), good (2) or of medium quality (3). The quality number mainly indicates how much crevasses are classified as superimposed ice. The firn area should be displayed correctly for all selected glaciers.
Institutions: SE01L, Swedish Environmental Research Institute, IVL, P.O.Box 47086, S-402 58 GÖTEBORG, Sweden, SE01L, Swedish Environmental Research Institute, IVL, P.O.Box 47086, S-402 58 GÖTEBORG, Sweden
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of aws at Rörvik (SE0002R). These measurements are gathered as a part of the following projects EMEP, CAMPAIGN and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: relative_humidity in met (relative_humidity), temperature in met (air_temperature)
License : EMEP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy)., CAMPAIGN: For scientific purposes, access to the data is limited. Data will be given access to after approval from the data producer or owner.
Institutions: PT01L, Dir. Reg. do Amb. Rec. Naturais do Alentejo, Laboratorio de Santo Andre, Apartado 85, P-7501 SANTO ANDRE CODEX, Portugal, PT01L, Dir. Reg. do Amb. Rec. Naturais do Alentejo, Laboratorio de Santo Andre, Apartado 85, P-7501 SANTO ANDRE CODEX, Portugal
Last metadata update: 2021-02-11T00:00:00Z
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Ground based in situ observations of bulk_sampler at Viana do Castelo (PT0003R). These measurements are gathered as a part of the following projects CAMP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: precipitation_amount in precip (lwe_thickness_of_precipitation_amount), cadmium in precip (mass_concentration_of_cadmium_in_precipitation), calcium in precip (mass_concentration_of_calcium_in_precipitation), chloride in precip (mass_concentration_of_chloride_in_precipitation), magnesium in precip (mass_concentration_of_magnesium_in_precipitation), nitrate in precip (mass_concentration_of_nitrate_in_precipitation), potassium in precip (mass_concentration_of_potassium_in_precipitation), sodium in precip (mass_concentration_of_sodium_in_precipitation), sulphate_corrected in precip (mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_precipitation), sulphate_total in precip (mass_concentration_of_sulphate_total_in_precipitation)
License : CAMP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy)., EMEP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy).
Institutions: FI03L, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research (INAR), PO BOX 64, FI-00014, University of Helsinki, Finland, FI03L, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research (INAR), PO BOX 64, FI-00014, University of Helsinki, Finland
Last metadata update: 2022-10-04T00:00:00Z
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Abstract:
Ground based in situ observations of cpc at Värriö (FI0023R). These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_concentration in pm10 (number_concentration_of_pm10_aerosol_particles_in_air), particle_number_concentration in pm10 (number_concentration_of_pm10_aerosol_particles_in_air), particle_number_concentration in pm10 (number_concentration_of_pm10_aerosol_particles_in_air)
Ground based in situ observations of aerosol_light_scattering_coefficient at Sable Island (CA0101R) using nephelometer. These measurements are gathered as a part of the following projects NOAA-ESRL, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: aerosol_light_scattering_coefficient in pm1
Ground based in situ observations of particle_number_concentration at Sable Island (CA0101R) using cpc. These measurements are gathered as a part of the following projects NOAA-ESRL, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_concentration in aerosol (number_concentration_of_particles_in_dry_aerosol_particles_in_air)
Institutions: IT03L, European Commission, Joint Research Centre Ispra, JRC-Ispra, T.P. 260, I-21020 ISPRA (Varese), Italy, IT03L, European Commission, Joint Research Centre Ispra, JRC-Ispra, T.P. 260, I-21020 ISPRA (Varese), Italy
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of acidity at Ispra (IT0004R) using wet_only_sampler. These measurements are gathered as a part of the following projects EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: acidity in precip (mass_concentration_of_acidity_in_precipitation)
License : EMEP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy).
Ground based in situ observations of bulk_sampler at Reykjavik (IS0090R). These measurements are gathered as a part of the following projects CAMP, AMAP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: precipitation_amount in precip (lwe_thickness_of_precipitation_amount), arsenic in precip (mass_concentration_of_arsenic_in_precipitation), cadmium in precip (mass_concentration_of_cadmium_in_precipitation), chromium in precip (mass_concentration_of_chromium_in_precipitation), copper in precip (mass_concentration_of_copper_in_precipitation), lead in precip (mass_concentration_of_lead_in_precipitation), nickel in precip (mass_concentration_of_nickel_in_precipitation), zinc in precip (mass_concentration_of_zinc_in_precipitation)
License : CAMP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy)., AMAP: For scientific purposes, access to the AMAP data is unlimited but by their use you accept that an offer of co-authorship will be made through personal contact with the data producer or owner.
Institutions: RU01L, Institute of Global Climate and Ecology, Glebovskaya 20b, 107258 MOSCOW, Russian Federeation, RU01L, Institute of Global Climate and Ecology, Glebovskaya 20b, 107258 MOSCOW, Russian Federeation
Last metadata update: 2023-10-18T00:00:00Z
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Abstract:
Ground based in situ observations of bulk_sampler at Pinega (RU0013R). These measurements are gathered as a part of the following projects AMAP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ammonium in precip (mass_concentration_of_ammonium_in_precipitation), ammonium in precip (mass_concentration_of_ammonium_in_precipitation), calcium in precip (mass_concentration_of_calcium_in_precipitation), chloride in precip (mass_concentration_of_chloride_in_precipitation), conductivity in precip (conductivity_in_precipitation), magnesium in precip (mass_concentration_of_magnesium_in_precipitation), nitrate in precip (mass_concentration_of_nitrate_in_precipitation), nitrate in precip (mass_concentration_of_nitrate_in_precipitation), pH in precip (mass_concentration_of_pH_in_precipitation), potassium in precip (mass_concentration_of_potassium_in_precipitation), sodium in precip (mass_concentration_of_sodium_in_precipitation), sulphate_corrected in precip (mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_precipitation), sulphate_corrected in precip (mass_concentration_of_sulphate_corrected_in_precipitation), sulphate_total in precip (mass_concentration_of_sulphate_total_in_precipitation), sulphate_total in precip (mass_concentration_of_sulphate_total_in_precipitation)
Institutions: AT03L, Umweltbundesamt Wien, UBA-AQC, Air Quality Control, Spittelauer Lände 5, 1090, Wien, Austria, AT03L, Umweltbundesamt Wien, UBA-AQC, Air Quality Control, Spittelauer Lände 5, 1090, Wien, Austria
Last metadata update: 2023-10-17T00:00:00Z
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Abstract:
Ground based in situ observations of ozone at Pillersdorf bei Retz (AT0030R) using uv_abs. These measurements are gathered as a part of the following projects EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ozone in air (mole_fraction_of_ozone_in_air), ozone in air (mass_concentration_of_ozone_in_air)
Institutions: HU01L, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, 1675, Budapest, Hungary, HU01L, Hungarian Meteorological Service, OMSZ, Unit of Analysis on Ambient Air, P.O.Box 39, 1675, Budapest, Hungary
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of aws at K-puszta (HU0002R). These measurements are gathered as a part of the following projects EMEP, CAMPAIGN and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: relative_humidity in met (relative_humidity), temperature in met (air_temperature)
License : EMEP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy)., CAMPAIGN: For scientific purposes, access to the data is limited. Data will be given access to after approval from the data producer or owner.
Institutions: IE01L, Met Eireann, Glasnevin Hill, Dublin 9, Dublin, Ireland, IE01L, Met Eireann, Glasnevin Hill, Dublin 9, Dublin, Ireland
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of filter_2pack at Valentia Observatory (IE0001R). These measurements are gathered as a part of the following projects CAMP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: sulphate_total in aerosol (mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air)
License : CAMP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy)., EMEP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy).
Institutions: RU01L, Institute of Global Climate and Ecology, Glebovskaya 20b, 107258 MOSCOW, Russian Federeation, RU01L, Institute of Global Climate and Ecology, Glebovskaya 20b, 107258 MOSCOW, Russian Federeation
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of filter_1pack at Pinega (RU0013R). These measurements are gathered as a part of the following projects AMAP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ammonium in aerosol (mass_concentration_of_ammonium_expressed_as_nitrogen_in_dry_aerosol_particles_in _air), nitrate in aerosol (mass_concentration_of_nitrate_expressed_as_nitrogen_in_dry_aerosol_particles_in _air), sulphate_total in aerosol (mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air)
License : AMAP: For scientific purposes, access to the AMAP data is unlimited but by their use you accept that an offer of co-authorship will be made through personal contact with the data producer or owner., EMEP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy).