Arctic Freshwater Content from Reanalysis
'''DEFINITION'''
Estimates of Arctic liquid Freshwater Content (FWC in meters) are obtained from integrated differences of the measured salinity and a reference salinity (set to 34.8) from the surface to the bottom per unit area in the Arctic region with a water depth greater than 500m as function of salinity (S), the vertical cell thickness of the dataset (dz) and the salinity reference (Sref). Waters saltier than the 34.8 reference are not included in the estimation. The regional FWC values from 1993 up to real time are then averaged aiming to:
* obtain the mean FWC as expressed in cubic km (km3)
* monitor the large-scale variability and change of liquid freshwater stored in the Arctic Ocean (i.e. the change of FWC in time).
'''CONTEXT'''
The Arctic region is warming twice as fast as the global mean and its climate is undergoing unprecedented and drastic changes, affecting all the components of the Arctic system. Many of these changes affect the hydrological cycle. Monitoring the storage of freshwater in the Arctic region is essential for understanding the contemporary Earth system state and variability. Variations in Arctic freshwater can induce changes in ocean stratification. Exported southward downstream, these waters have potential future implications for global circulation and heat transport.
'''CMEMS KEY FINDINGS'''
Since 1993, the Arctic Ocean freshwater has experienced a significant increase of 423 ± 39 km3/year. The year 2016 witnessed the highest freshwater content in the Artic since the last 24 years. Second half of 2016 and first half of 2017 show a substantial decrease of the FW storage.
Note: The key findings will be updated annually in November, in line with OMI evolutions.
'''DOI (product):'''
Simple
- Title
-
Arctic Freshwater Content from Reanalysis
- Alternate title
-
ARCTIC_OMI_TEMPSAL_FWC
- Date (Creation)
- 2018-02-12
- Edition
-
3.4
- Edition date
- 2023-03-30
- Citation identifier
- a78600a4-a280-47b5-8ddd-0dc8b5e9c9d9
- Abstract
-
'''DEFINITION'''
Estimates of Arctic liquid Freshwater Content (FWC in meters) are obtained from integrated differences of the measured salinity and a reference salinity (set to 34.8) from the surface to the bottom per unit area in the Arctic region with a water depth greater than 500m as function of salinity (S), the vertical cell thickness of the dataset (dz) and the salinity reference (Sref). Waters saltier than the 34.8 reference are not included in the estimation. The regional FWC values from 1993 up to real time are then averaged aiming to:
* obtain the mean FWC as expressed in cubic km (km3)
* monitor the large-scale variability and change of liquid freshwater stored in the Arctic Ocean (i.e. the change of FWC in time).
'''CONTEXT'''
The Arctic region is warming twice as fast as the global mean and its climate is undergoing unprecedented and drastic changes, affecting all the components of the Arctic system. Many of these changes affect the hydrological cycle. Monitoring the storage of freshwater in the Arctic region is essential for understanding the contemporary Earth system state and variability. Variations in Arctic freshwater can induce changes in ocean stratification. Exported southward downstream, these waters have potential future implications for global circulation and heat transport.
'''CMEMS KEY FINDINGS'''
Since 1993, the Arctic Ocean freshwater has experienced a significant increase of 423 ± 39 km3/year. The year 2016 witnessed the highest freshwater content in the Artic since the last 24 years. Second half of 2016 and first half of 2017 show a substantial decrease of the FW storage.
Note: The key findings will be updated annually in November, in line with OMI evolutions.
'''DOI (product):'''
- Credit
-
E.U. Copernicus Marine Service Information
- Point of contact
-
Organisation name Individual name Electronic mail address Role GLO-MERCATOR-TOULOUSE-FR
Yann Drillet
Production center GLO-MERCATOR-TOULOUSE-FR
Karina Von Schuckmann
Product manager GLO-MERCATOR-TOULOUSE-FR
GLO Service Desk
Local service desk GLO-MERCATOR-TOULOUSE-FR
Renaud Dussurget
Production Unit MOI-OMI-SERVICE
MOI-OMI-SERVICE
Dissemination Unit
- Maintenance and update frequency
- Annually
- Other
-
P0M0D0H/P0M0D0H
- Maintenance note
-
N/A
-
GEMET - INSPIRE themes, version 1.0
- Use limitation
-
See Copernicus Marine Environment Monitoring Service Data commitments and licence at: http://marine.copernicus.eu/web/27-service-commitments-and-licence.php
- Access constraints
- Other restrictions
- Use constraints
- License
- Other legal constraints
-
No limitations on public access
- Aggregate Datasetindentifier
- fab41706-add9-45d0-aa0a-cca888b7573d
- Association Type
- Cross reference
- Initiative Type
- Document
- Aggregate Datasetindentifier
- 87a8e638-58a3-4fa9-9d84-2830a2d3dcc4
- Association Type
- Cross reference
- Initiative Type
- Document
- Aggregate Datasetindentifier
- 57f024eb-eba4-4abb-99ff-da86ce6583ed
- Association Type
- Cross reference
- Initiative Type
- Document
- Title
-
G. Garric, O. Hernandez, C. Bricaud, A. Storto, K. A. Peterson, H. Zuo, 2018: Arctic Ocean freshwater content. In: Copernicus Marine Service Ocean State Report, Issue 2, Journal of Operational Oceanography, 11:sup1, s70–s72, DOI: 10.1080/1755876X.2018.1489208
- Date (Creation)
- 2019-05-08
- Association Type
- Cross reference
- Initiative Type
- Reference
- Language
-
eng
- Topic category
-
- Oceans
- Description
-
bounding box
- Begin date
- 1993-01-01
- End date
- 2017-12-31
Vertical extent
- Minimum value
- 0
- Maximum value
- 0.0
Vertical CRS
- Supplemental Information
-
display priority: 53800
- Codespace
-
EPSG
- Number of dimensions
- 2
- Dimension name
- Row
- Dimension name
- Column
- Cell geometry
- Area
- Transformation parameter availability
- Distribution format
-
Name Version NetCDF-4
- OnLine resource
-
Protocol Linkage Name WWW:STAC
https://stac.marine.copernicus.eu/metadata/ARCTIC_OMI_TEMPSAL_FWC/arctic_omi_tempsal_fwc/dataset.stac.json arctic_omi_tempsal_fwc
- Hierarchy level
- Series
Conformance result
- Title
-
COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Explanation
-
See the referenced specification
- Statement
-
The myOcean products depends on other products for production or validation. The detailed list of dependencies is given in ISO19115's aggregationInfo (ISO19139 Xpath = "gmd:MD_Metadata/gmd:identificationInfo/gmd:aggregationInfo[./gmd:MD_AggregateInformation/gmd:initiativeType/gmd:DS_InitiativeTypeCode/@codeListValue='upstream-validation' or 'upstream-production']")
- Attribute description
- observation
- Content type
- Physical measurement
- Descriptor
-
temporal resolution: monthly mean
- Descriptor
-
vertical level number: 0
- Included with dataset
- Feature types
- Point series
Metadata
- File identifier
- a78600a4-a280-47b5-8ddd-0dc8b5e9c9d9
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Series
- Hierarchy level name
-
Copernicus Marine Service product specification
- Date stamp
- 2024-03-21T09:52:41.369Z
- Metadata standard name
-
ISO 19139, MyOcean profile
- Metadata standard version
-
0.2
- Metadata author
-
Organisation name Individual name Electronic mail address Role CMEMS
Local service desk