Dataset
ESA Sea Level Climate Change Initiative (Sea_Level_cci): High Latitude Sea Level Anomalies from satellite altimetry (by DTU/TUM)
Abstract
This dataset contains high latitude sea level anomalies produced by DTU (Technical University of Denmark) and TUM (Technical University of Munich) as part of the ESA Sea Level CCI (Climate Change Initiative) project, covering both the Arctic and Antarctic regions.
The data comprises weekly means from August 1991 to April 2017 and has been obtained using satellite altimetry data from four satellite missions: ERS1 (weeks 0 - 217); ERS2 (weeks 218 - 573); Envisat (weeks 574 - 1020); CryoSat-2 (weeks 1021 - 1336).
Two datasets are available: dataset #1 is based on the ALES+ retracking without correction of the inverse barometer whereas dataset #2 has been corrected for this effect.
Dataset #1 is provided both 'masked' and 'unmasked', where the masked data have been masked using sea ice concentrations downloaded from osisaf.met.no/p/ice. Dataset #2 is provided both 'masked' and 'unmasked', where the masked data have had data points retrieved over land removed from the files.
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 product has been developed within the sea level project of the European Space Agency (ESA) Climate Change Initiative. A copy has been transferred to CEDA as part of the ESA CCI Open Data Portal project. |
| Data Quality: |
Data are as provided by the Sea Level CCI project team
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| File Format: |
Data are in ascii format.
For dataset 1 the columns are:
Longitude,
Latitude,
Height (always 0),
Sea level anomaly (SLA),
SLA error,
Data origin (mission).
The time in the filename denotes the beginning of the data, and files contain weekly means.
For Dataset 2 the columns are:
Longitude,
Latitude,
Height (always 0),
Sea level anomaly (SLA).
The filename states the region and the month and year of the dataset (YYYYMM).
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Related Documents
Process overview
Instrument/Platform pairings
| RA | Deployed on: ERS-1 |
| RA | Deployed on: European Remote Sensing satellite 2 - ERS-2 |
| Radar Altimeter 2 (RA-2) | Deployed on: Envisat |
| The SAR Interferometer Radar Altimeter (SIRAL) | Deployed on: CryoSat-2 |
Computation Element: 1
| Title | Retrieval algorithm for ESA Sea Level Climate Change Initiative (Sea_Level_cci): High Latitude Sea Level Anomalies from satellite altimetry (by DTU/TUM) |
| Abstract | For more details see the linked technical notes in the documentation section |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
No variables found.
Temporal Range
1991-08-01T00:00:00
2017-04-30T23:59:59
Geographic Extent
90.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |