Arctic Freshwater content

'''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.

'''DOI (product):'''

https://doi.org/10.48670/moi-00193

 
Citation proposal
Yann Drillet (GLO-MERCATOR-TOULOUSE-FR). Arctic Freshwater content. https://services.mspdata.eu:/geonetwork/srv/api/records/a78600a4-a280-47b5-8ddd-0dc8b5e9c9d9

Simple

Alternate title
ARCTIC_OMI_TEMPSAL_FWC
Date ( Creation )
2018-02-12
Edition
3.4
Edition date
2018-02-12
Identifier
a78600a4-a280-47b5-8ddd-0dc8b5e9c9d9
Credit
E.U. Copernicus Marine Service Information

  Custodian

  Originator

  Point of contact

  Resource provider

  Distributor

Maintenance and update frequency
Annually
Other
P0M0D0H/P0M0D0H
Maintenance note
N/A
GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Oceanographic geographical features
Discipline ( Discipline )
  • numerical-model
Climate and Forecast Standard Names ( parameter )
Temporal scale ( temporal-scale )
  • multi-year
Area of benefit ( area-of-benefit )
  • marine-safety , weather-climate-and-seasonal-forecasting , coastal-marine-environment , marine-resources
Reference Geographical Areas ( reference-geographical-area )
  • arctic-ocean
Processing level ( processing-level )
  • N/A
Model assimilation ( Theme )
  • Not Applicable
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 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
Date ( Creation )
2019-05-08
Association Type
Cross reference
Initiative Type
reference
Metadata language
eng
Topic category
  • Oceans
Description
bounding box
N
S
E
W


Vertical extent

Minimum value
0
Maximum value
0.0
Vertical CRS
Supplemental Information
display priority: 53800
Unique resource identifier
Codespace
EPSG
Number of dimensions
2
Dimension name
Row
Dimension name
Column
Cell geometry
Area
Transformation parameter availability
false
Distribution format
  • NetCDF-4 ( )

OnLine resource
arctic_omi_tempsal_fwc  
Hierarchy level
Series

Conformance result

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']")

Metadata

File identifier
a78600a4-a280-47b5-8ddd-0dc8b5e9c9d9   XML
Metadata language
English
Character set
UTF8
Hierarchy level
Series
Hierarchy level name
Copernicus Marine Service product specification
Date stamp
2021-12-10T13:22:29
Metadata standard name
ISO 19139, MyOcean profile
Metadata standard version
0.2

  Point of contact

Website
http://marine.copernicus.eu/  
 
 

  Overviews


Provided by

Access to the portal

Associated resources

Not available