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.
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This dataset provides the first-of-the-kind inventory of Antarctic ice rises and rumples, which was developed and described by Matsuoka et al. (2015). The inventory is based on available grounding-zone products and some additional visual interpretation of satellite imagery. Beginning with the island polygons of the MODIS Mosaic of Antarctica (MOA) 2003-2004 product (Haran et al., 2005; Scambos et al., 2007), we extracted all island polygons that were contained within an ice shelf, assuming that they represent ice rises or rumples. We then updated this dataset using the new MOA 2009 product as well as independent grounding-zone points from SAR interferometry (Rignot et al., 2011) and ICESat altimetry (Fricker et al., 2009; Brunt et al., 2010). This preliminary inventory was then manually edited and updated based on visual interpretation of the two MOA image mosaics, the high-resolution Landsat Image Mosaic of Antarctica (LIMA) (Bindschadler et al., 2008), and the IPY-MEaSUREs Antarctica velocity map (Rignot et al., 2011). We also digitized polygons around the most prominent ice ridges and domes within the continental grounding zone. We classified the features into four classes (ice rises, promontories/ridges, ice rumples and nunataks) and extracted basic statistical attributes on parameters such as area, surface velocity, surface elevation, bed elevation, ice thickness and surface slope. Please refer to Matsuoka et al. (2015) and the relevant metadata for more details.
Quality
Description of inventory attributes
id_icerise: Unique id code for each feature (sorted after longitude) type, type_text: 1 = Ice rise (topographic feature within an ice shelf, with distinct dynamics) 2 = Ice ridge (major promontory/ridge between ice shelves/streams, with a clear divide) 3 = Ice rumple (smaller grounded feature with irregular geometry, limited prominence and typically ice-shelf flow across it) 4 = Nunatak (visible sediments or rock) name: Name of feature for those that have, mainly based on SCAR database divide: 0 = no clear divide 1 = clear divide island: 0 = grounded below sea level 1 = partly grounded above sea level (in Bedmap2) isolated: 0 = inside or connected with an ice shelf 1 = not connected to an ice shelf (only applies to type 2 ice ridges, mainly in Siple Coast) MOA2003, MOA2009, InSAR (data source): 0 = not represented in that data set 1 = represented in that data set (three zeros imply manual identification in satellite imagery) Area_km2: Polygon area in square kilometers, Lambert Equal Area Projection nrofpoints: Number of 1 km2 grid cells used for statistics calculation vel_mean: Mean absolute velocity over each feature based on the Antarctica Velocity Map h_mean, h_min, h_max: Mean, minimum and maximum surface elevation of each feature extracted from Bedmap2 h_rise: Relative height of the feature (h_max-h_min) bed_mean, bed_min, bed_max: Mean, minimum and maximum bedrock elevation of each feature extracted from Bedmap2 thick: Mean ice thickness (h_mean-h_bed) slope_mean: Mean absolute slope of each feature extracted from Bedmap2 Width, length: Shortest and longest distances (in unit km) from the summit to the edge of each feature longi, lati: longitude and latitude of the center point of each feature —
References for external data sources
MOA2003 and MOA2009: Scambos, T. A., T. M. Haran, M. A. Fahnestock, T. H. Painter, and J. Bohlander (2007), MODIS-based Mosaic of Antarctica (MOA) data sets: Continent-wide surface morphology and snow grain size, Remote Sens. Environ., 111, 242-257, https://doi.org/10.1016/j.rse.2006.12.020
InSAR grounding line: Rignot, E., J. Mouginot, and B. Scheuchl (2011a), Antarctic grounding line mapping from differential satellite radar interferometry, Geophys. Res. Lett., 38(L10504), https://doi.org/10.1029/2011gl047109
Antarctica Velocity Map: Rignot, E., J. Mouginot, and B. Scheuchl (2011b), Ice Flow of the Antarctic Ice Sheet, Science, 333, 1427-1430, https://doi.org/10.1126/science.1208336
Bedmap2: Fretwell, P., et al. (2013), Bedmap2: improved ice bed, surface and thickness datasets for Antarctica, Cryosphere, 7, 375-393, https://doi.org/10.5194/tc-7-375-2013