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.
The data show concentrations of persistent organic pollutants in plasma and adipose tissue of adult female polar bears from Svalbard sampled in spring and autumn, 2012-2013. The data was used to explore what determines the variation in concentrations of PCBs, organochlorine pesticides and brominated flame retardants in adult female polar bears from Svalbard. The predictor variables included samplig season, location, feeding habits (approximated by stable isotopes and fatty acid composition), body condition index, fasting status (the ratio between plasma urea in mmol/L and creatinine μmol/L), age (years) and breeding status. All contaminant concentrations are in ng/g wet weight in the data file, but were lipid corrected (concentration/fat%*100) in the publication (except OH-PCBs). Stable isotopes of carbon and nitrogen, d13C and d15N, were analysed in red blood cells and are shown in ‰ unit. Fatty acid composition was determined in adipose tissue and shown in % unit. Breeding status refers to females captured alone (no), or with cubs of the year (coy) or with one or two year old offspring (yrl).
Quality
See DOI: 10.1016/j.scitotenv.2016.10.132 for details.
The ACS_Bayelva_class dataset contains 302 high-resolution binary snow cover images that were obtained by classifying orthrorectified photographs of a 1.77 km^2 area of interest in the Bayelva catchment. This catchment is close to Ny-Ã…lesund, the northernmost permanent civilian settlement in the world and a major hub for polar research, in the Norwegian high-Arctic Svalbard archipelago. The imagery has a (roughly) daily temporal resolution and a ground sampling distance (pixel spacing) of 0.5 m. The dataset spans 6 snowmelt seasons, covering the months May-August for the period 2012-2017. The orthophotos were obtained by processing oblique time-lapse photographs taken by a terrestiral automatic camera system (ACS) mounted at 562 m a.s.l. near the summit of Scheteligfjellet (719 m a.s.l.) a few kilometers west of Ny-Ã…lesund. The orthophotos were manually classified into binary snow cover images (0=no snow, 1=snow) by iteratively selecting a (visually) optimal threshold on the intensity in the blue band for each image. More details are provided in the study of Aalstad et al. (2020) [a copy is available in this repository] where this dataset was created. The ACS was maintained by scientists from the group of Sebastian Westermann at the Section for Physical Geography and Hydrology in the Department of Geosciences at the University of Oslo, Oslo, Norway.
Institutions: GE01L, National Environmental Agency, Tbilisi, GE01L, National Environmental Agency, Tbilisi
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of wet_only_sampler at Abastumani (GE0001R). 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: 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), pH in precip (mass_concentration_of_pH_in_precipitation), potassium in precip (mass_concentration_of_potassium_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).
Institutions: GR02L, Ministry of Environment, GR02L, Ministry of Environment
Last metadata update: 2021-12-08T00:00:00Z
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Abstract:
Ground based in situ observations of smps at Finokalia (GR0002R). 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_size_distribution in pm10, particle_number_size_distribution in pm10, particle_number_size_distribution in pm10
Institutions: US13L, University of Colorado - INSTAAR, INSTAAR, Institute of Arctic and Alpine Research, 4001 Discovery Drive, Rm N202, CO 80303, Boulder, USA, US13L, University of Colorado - INSTAAR, INSTAAR, Institute of Arctic and Alpine Research, 4001 Discovery Drive, Rm N202, CO 80303, Boulder, USA
Last metadata update: 2021-04-30T00:00:00Z
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Abstract:
Ground based in situ observations of ethene at Summit (DK0025G) using online_gc. These measurements are gathered as a part of the following projects GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ethene in air (mass_fraction_of_ethene_in_air)
Institutions: NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway, NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway
Last metadata update: 2023-04-21T00:00:00Z
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Abstract:
Ground based in situ observations of mass_121_organic_compounds at Birkenes II (NO0002R) using PTR-MS. These measurements are gathered as a part of the following projects ACTRIS, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: mass_121_organic_compounds in air
Institutions: NO01L, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, 2007, Kjeller, Norway, NO01L, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, 2007, Kjeller, Norway
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of methane at Zeppelin mountain (Ny-Ã…lesund) (NO0042G) using online_crds. These measurements are gathered as a part of the following projects EMEP, NILU and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: methane in air (mass_fraction_of_methane_in_air)
License : EMEP: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy)., NILU: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy).
Institutions: BG01L, Institute for Nuclear Research and Nuclear Energy, Basic Environmental Observatory Moussala, 72 Tsarigradsko Chaussee Blvd, 1784-Sofia, Bulgaria, BG01L, Institute for Nuclear Research and Nuclear Energy, Basic Environmental Observatory Moussala, 72 Tsarigradsko Chaussee Blvd, 1784-Sofia, Bulgaria
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of particle_number_size_distribution at BEO Moussala (BG0001R) using smps. These measurements are gathered as a part of the following projects ACTRIS and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_size_distribution in pm10
Institutions: NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway, NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway
Last metadata update: 2023-04-21T00:00:00Z
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Abstract:
Ground based in situ observations of ethanal at Birkenes II (NO0002R) using PTR-MS. These measurements are gathered as a part of the following projects ACTRIS, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ethanal in air (mole_fraction_of_ethanal_in_air), ethanal in air (mass_concentration_of_ethanal_in_air)
Institutions: CZ03L, Institute of Chemical Process Fundamentals ASCR v. v. i., ICPF, Laboratory of Aerosol Chemistry and Physics, Rozvojova 2,, 16502, Prague 6, Czech Republic, CZ03L, Institute of Chemical Process Fundamentals ASCR v. v. i., ICPF, Laboratory of Aerosol Chemistry and Physics, Rozvojova 2,, 16502, Prague 6, Czech Republic
Last metadata update: 2022-05-03T00:00:00Z
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Abstract:
Ground based in situ observations of smps at Prague-Suchdol (CZ0004B). 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_size_distribution in pm10, particle_number_size_distribution in pm10, particle_number_size_distribution in pm10
Institutions: GB05L, ACRG, University of Bristol, School of Chemistry, Cantocks Close, BS8 1TS, Bristol, United Kingdom, UNIVBRIS, Cantocks Close,, BS8 1TS, Bristol, United Kingdom, GB05L, ACRG, University of Bristol, School of Chemistry, Cantocks Close, BS8 1TS, Bristol, United Kingdom, UNIVBRIS, Cantocks Close,, BS8 1TS, Bristol, United Kingdom
Last metadata update: 2021-02-11T00:00:00Z
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Abstract:
Ground based in situ observations of online_crds at Angus (GB0056R). These measurements are gathered as a part of the following projects GAW-WDCGG-node, UK_DECC and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: carbon_dioxide in air (mass_fraction_of_carbon_dioxide_in_air), methane in air (mass_fraction_of_methane_in_air)
License : GAW-WDCGG-node: , UK_DECC: Public open access. We encourage contacting data originators if substatial use of individual time series is planned (fair use data policy).
Institutions: NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway, NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway
Last metadata update: 2023-04-21T00:00:00Z
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Abstract:
Ground based in situ observations of PTR-MS at Birkenes II (NO0002R). These measurements are gathered as a part of the following projects ACTRIS, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: acetonitrile in air (mole_fraction_of_aceto_nitrile_in_air), benzene in air (mole_fraction_of_benzene_in_air), benzene in air (mole_fraction_of_benzene_in_air), isoprene in air (mole_fraction_of_isoprene_in_air), mass_59_organic_compounds in air, mass_71_organic_compounds in air, methanol in air (mole_fraction_of_methanol_in_air), monoterpenes in air (mole_fraction_of_monoterpenes_in_air), toluene in air (mole_fraction_of_toluene_in_air), toluene in air (mole_fraction_of_toluene_in_air)