Dataset
ESA Sea Level Climate Change Initiative (Sea_level_cci): Arctic Sea Level Anomalies from ENVISAT and SARAL/Altika satellite altimetry missions (by CLS/PML)
Abstract
This dataset contains estimations of Arctic sea level anomalies produced by the ESA Sea Level Climate Change Initiative project (Sea_level_cci), based on satellite altimetry from the ENVISAT and SARAL/Altika satellites. It has been produced by Collecte Localisation Satellites (CLS) and the Plymouth Marine Laboratory (PML).
The retrieval of sea level in the Arctic sea ice covered region requires specific processing steps of the satellite altimetry measurements. For this dataset, a specific radar waveform classification method has been applied based on a neural network approach, and the waveform retracking is based on a new adaptive retracking that is able to process both open ocean and peaky echoes measured in leads without introducing any bias between the two types of surfaces. Editing and mapping processing steps have been optimized for this dataset
Details
| Previous Info: |
No news update for this record
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|---|---|
| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/esacci_sealevel_terms_and_conditions.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
The dataset has been produced by the Sea Level project of the ESA Climate Change Initiative programme. It has been supplied to CEDA for archiving in the context of the CCI Open Data Portal. |
| Data Quality: |
Data are as provided by the Sea Level CCI project team
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| File Format: |
Data are in NetCDF format
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Related Documents
| Product User Guide |
| Sea Level CCI Project website |
Process overview
Instrument/Platform pairings
| Radar Altimeter 2 (RA-2) | Deployed on: Envisat |
| AltiKa | Deployed on: SARAL (Satellite with ARGOS and AltiKa) |
Computation Element: 1
| Title | Retrieval algorithm for the ESA Sea Level Climate Change Initiative (Sea_level_cci): Arctic Sea Level Anomalies from ENVISAT and SARAL/Altika satellite altimetry missions (by CLS/PML) |
| Abstract | The retrieval of sea level in the Arctic sea ice covered region requires specific processing steps of the satellite altimetry measurements. For this dataset, a specific radar waveform classification method has been applied based on a neural network approach, and the waveform retracking is based on a new adaptive retracking that is able to process both open ocean and peaky echoes measured in leads without introducing any bias between the two types of surfaces. Editing and mapping processing steps have been optimized for this dataset |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- units: degree
- var_id: LatLonMin
- long_name: Latitude/Longitude of south/ouest corner
- units: degrees_north
- var_id: NbLatitudes
- long_name: Latitudes
- units: degrees_east
- var_id: NbLongitudes
- long_name: Longitudes
- units: count
- var_id: LatLon
- long_name: No sense but necessary for some automatic tools
- units: percent
- var_id: Grid_0003
- long_name: Sea Ice Fraction
- units: m
- var_id: Grid_0002
- long_name: Sea Level Anomaly Standard Deviation
- units: m
- var_id: Grid_0001
- long_name: Sea Level Anomaly in classes 1 and 2
- units: degree
- var_id: LatLonStep
- long_name: latitude/longitude steps
Co-ordinate Variables
Temporal Range
2003-01-01T00:00:00
2016-09-29T23:59:59
Geographic Extent
82.0000° |
||
-180.0000° |
180.0000° |
|
50.0000° |