ESA Greenland Ice Sheet Climate Change Initiative (Greenland_Ice_Sheet_cci): Grounding Line Locations v1.2
This dataset contains grounding lines for 5 North Greenland glaciers, derived from generated from ERS -1/-2 SAR Tandem and 3 days data sets. This addition includes the grounding line for the Petermann glacier from Sentinel-1A. Data was produced as part of the ESA Greenland Ice Sheets Climate Change Initiative (CCI) project by ENVEO, Austria.
The grounding line is the separation point between the floating and grounded parts of the glacier. Processes at the grounding lines of floating marine termini of glaciers and ice streams are important for understanding the response of the ice masses to changing boundary conditions and for establishing realistic scenarios for the response to climate change. The grounding line location product is derived from InSAR data by mapping the tidal flexure and is generated for a selection of the few glaciers in Greenland, which have a floating tongue. In general, the true location of the grounding line is unknown, and therefore validation is difficult for this product.
Remote sensing observations do not provide direct measurement on the transition from floating to grounding ice (the grounding line). The satellite data deliver observations on ice surface features (e.g. tidal deformation by InSAR, spatial changes in texture and shading in optical images) that are indirect indicators for estimating the position of the grounding line. Due to the plasticity of ice these indicators spread out over a zone upstream and downstream of the grounding line, the tidal flexure zone (also called grounding zone).
Simple
- Date (Publication)
- 2016-11-30T20:19:38
- Date (Creation)
- 2016-11-30T20:19:38
- Identifier
- Centre for Environmental Data Analysis (CEDA) / 2d43e43de3484810ae24cfdc13eab263
- Maintenance and update frequency
- unknown Unknown
- Update scope
- dataset Dataset
- Keywords
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- ice sheets
- ice sheets
- Greenland
- Ice Sheet
- CCI
- ESA
- GEMET - INSPIRE themes, version 1.0
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- orthoimagery
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Public data: access to these data is available to both registered and non-registered users.
- Use constraints
- otherRestrictions Other restrictions
- Spatial representation type
- grid Grid
- Metadata language
- EnglishEnglish
- Topic category
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- Imagery base maps earth cover
- Begin date
- 1995-01-01T00:00:00
- End date
- 2015-12-31T00:00:00
- Unique resource identifier
- WGS 84
- Distribution format
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Data are ESRI shapefiles
()
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Data are ESRI shapefiles
()
- OnLine resource
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CEDA Data Catalogue Page
Detail and access information for the resource
- OnLine resource
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DOWNLOAD
Download Data
- OnLine resource
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The ESA Greenland Ice Sheet CCI Project
No further details.
- OnLine resource
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Product User Guide
No further details.
- OnLine resource
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ESA Climate Change Initiative website
No further details.
- Hierarchy level
- dataset Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
- Data were processed by the ESA CCI Greenland Ice Sheet project team and supplied to CEDA in the context of the ESA CCI Open Data Portal Project.
- File identifier
- 2d43e43de3484810ae24cfdc13eab263 XML
- Metadata language
- EnglishEnglish
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
- Parent identifier
- 394464f9c39445d3b6445d8e305841d7 394464f9c39445d3b6445d8e305841d7
- Hierarchy level
- dataset Dataset
- Date stamp
- 2024-10-02T07:13:19
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3