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.
Green Network of Excellence Program - Arctic Climate Change Research Project
Last metadata update: 2015-05-14T00:00:00Z
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Abstract:
It is the result of analysis of Chlorophyll-a concentration of the glacier. The samples were obtained at July 2012. This data represent the change of the Chlorophyll-a concentration with altitude.
Green Network of Excellence Program - Arctic Climate Change Research Project
Last metadata update: 2015-05-14T00:00:00Z
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Abstract:
It is the result of microscopic analysis of snow algal community of the glacier. The samples were obtained at August 2012. These data represent the change of total algal biomass (biovolume), algal cell number and structure of snow algal community with altitude.
This dataset contains the ice thickness data recorded in the Dome Fuji region, East Antarctica. The data was recorded by the 54th Japanese Antarctic Research Expedition (JARE54) using a pulse-modulated POL radar sounder with a peak transmission power of 1kW, a center frequency of 179 MHz and a transmitter pulse width of 500 or 60 ns.
Green Network of Excellence Program - Arctic Climate Change Research Project
Last metadata update: 2015-05-14T00:00:00Z
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Abstract:
This data was measured by an shipborne Electromagnetic induction (EM) sensor which mountaed on the JCG Soya. The observation started from 11 to 13 February 2012 Off the Hokkaido island in the southern part of Sea of Okhotsk. The number of EM measurements was 5 profiles.
Wet and dry deposition of black carbon (BC) aerosol in the Arctic lowers snow albedo, thus contributing to warming in the Arctic. However, the processes and impacts associated with BC deposition in the Arctic are poorly understood because of the scarcity and uncertainties of measurements of BC in snow with adequate spatiotemporal resolution. We sampled snowpack at two sites (11 m and 300 m above sea level) at Ny-Alesund, Spitsbergen, in April 2013. We also collected falling snow near the surface with a windsock from September 2012 to April 2013. The size distribution of BC in snowpack and falling snow was measured using a single-particle soot photometer combined with a nebulizer. The BC size distributions did not show significant variations with depth in the snowpack, suggesting stable size distributions in falling snow. The BC number and mass concentrations (CNBC and CMBC) at these sites agreed to within 19% and 10%, respectively, despite the sites difference in snow water equivalent (SWE). This indicates the small influence of the amount of SWE (or precipitation) on these quantities. Average CNBC and CMBC in snowpack and falling snow at nearly the same locations agreed to within 5% and 16%, after small corrections for artifacts associated with the sampling of the falling snow. This comparison shows that the relative contribution of dry deposition to total deposition to be smaller than the uncertainty of their measurements. CNBC and CMBC in falling snow and BC concentrations in ambient air were highest in winter.
Green Network of Excellence Program - Arctic Climate Change Research Project
Last metadata update: 2016-03-31T00:00:00Z
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Abstract:
Dataset of atmospheric O2 and CO2 concentrations obtained at Ny-Alesund Station using a differencial fuel-cell oxygen analyzer and non-dispersive infrared analyzer
Stable isotope data (d18O and dD) and temperature reconstruction from Dome Fuji ice cores, Antarctica for the past 360,000 years. Data from core DF1 are deltaD (Uemura et al., 2004) and delta18O (Watanabe et al., 2003). The data-set is corrected and updated in Uemura et al. (2012). Data from core DF2 includes deltaD and delta18O (Uemura et al., 2012). Temperature estimates are based on combined isotope data from both cores (Uemura et al., 2012). The age scale adopted here is the Dome Fuji Ice Core O2/N2 timescale (DFO-2006) (Kawamura et al., 2007).
Green Network of Excellence Program - Arctic Climate Change Research Project
Last metadata update: 2015-05-14T00:00:00Z
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Abstract:
It is the result of chemical analysis of meltwater of the glacier. The samples were obtained at July 2012. It is composed by the result about Li, Na, NH4, K, Mg, Ca, F, Cl, NO2, Br, NO3, PO4 and SO4.
The Arctic Challenge for Sustainability II, Arctic Challenge for Sustainability
Last metadata update: 2022-04-13T00:00:00Z
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Abstract:
Time-series data of an automatic weather station (AWS) operated at the SIGMA-B site on the Ice cap of Greenland since July 2012. The AWS measures the meteorological parameters every hour, which are air temperature, relative humidity, wind speed, wind direction, atmospheric pressure, shortwave radiation, longwave radiation, and snow height. This dataset (data level: 1.2) has been applied brief data masking procedures discriminating apparent erroneous data records. Detailed information of the data level definition is referred to "readme_SIGMA-B_Level_1.2.txt".
Measurements of sea ice thickness, sea ice concentration, water temperature/salinity profile, and water current profile. Monitoring of vessel movement during ice navigation.
Green Network of Excellence Program - Arctic Climate Change Research Project
Last metadata update: 2015-05-14T00:00:00Z
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Abstract:
It is the result of chemical analysis of meltwater of the glacier. The samples were obtained at July 2012. It is composed by the result about Li, Na, NH4, K, Mg, Ca, F, Cl, NO2, Br, NO3, PO4 and SO4.