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.
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Brief user guide
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 through the drop down menu above the text field. Text strings that are not quoted are treated as separate words and will match any of the words (i.e. assuming the OR operator). Phrases may be prefixed with '-' to indicate no occurence of the phrase in the results.
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.
Data consists of surface mass balance (SMB) derived using stake height measurements of 90 stakes installed and successfully reoccupied over Blåskimen Island ice rise in western Dronning Maud Land. It uses firn density measured using 3 m deep firn cores at 11 sites over the ice rise to account for the spatial variation in density. The SMB represents a one year period between 2013 and 2014. The data are provided in MATLAB (.mat) file format.
IRD_smb_stake.mat includes – • ‘x’ and ‘y’ arrays with coordinates in a polar stereographic projection parallel to 71° S (EPSG 3031) •‘dh’ array with measured stake height difference over the given period •‘rho’ shows the density used in the estimate •‘smb’ the surface mass balance in kg m-2
See the following manuscript for further details: Goel, V., Brown, J., and Matsuoka, K.: Glaciological settings and recent mass balance of Blåskimen Island in Dronning Maud Land, Antarctica, The Cryosphere Discuss., https://doi.org/10.5194/tc-2017-61, in review, 2017.
This dataset provides SMB estimates for Blåskimen Island ice rise, western Dronning Maud Land. It was estimated using englacial reflectors visible in radar stratigraphy, dated using 23-m deep firn core, It provides an average annual SMB for past 9 years from 2014 along the radar profiles. In this estimate, the same density-depth profile obtained using a 23 m deep firn core near the summit is used along all the profiles. For more on the method refer to Goel et al., (2017). The data are provided in MATLAB (.mat) file format named ‘IRD_smb_radar.mat’ consisting struct-class variables for each radar profile as ‘Profile_1’, Profile_2’ etc.
Profile_1 includes – • ‘x’ and ‘y’ arrays with coordinates in a polar stereographic projection parallel to 71° S (EPSG 3031), and ‘z’ shows elevations above the WGS84 ellipsoid. All are in the unit of meters. • ‘smb_const’ array with the second SMB estimate using constant density-depth profile in kg m-2 • ‘dis’ array with distance from the starting point in meters.
See the following manuscript for further details: Goel, V., Brown, J., and Matsuoka, K.: Glaciological settings and recent mass balance of Blåskimen Island in Dronning Maud Land, Antarctica, The Cryosphere Discuss., https://doi.org/10.5194/tc-2017-61, in review, 2017.