OVIDE Datasets

46195.nc

Dataset Overview

  • Project: OVIDE

  • Description: Time series of the Meridional Overturning Circulation intensity across the Greenland-Portugal A25 OVIDE line

  • Source File: 46195.nc

  • Data Product: Monthly MOC-intensity time series across the Greenland-Portugal A25 OVIDE line, derived from AVISO altimetry and Argo/ISAS temperature and salinity

  • License: CC-BY-NC-4.0

  • Date Created: 10-Oct-2016 11:37:48

  • Time Coverage: 1993-01-15 to 2015-12-15

  • Record Length: 276 observations (22.9 years)

  • Sampling Frequency: monthly

Citation:

Mercier Herle, Daniault Nathalie, Lherminier Pascale (2016). Time series of the Meridional Overturning Circulation intensity at OVIDE. SEANOE. https://doi.org/10.17882/46445

Acknowledgement:

The authors request that Mercier et al. (2015, Progress in Oceanography) be cited alongside this dataset.

Dataset Visualization

AMOC time series plot

Time series plot for OVIDE dataset.

Dataset Statistics

  • Total Variables: 3

  • Total Coordinates: 1

  • Dataset Size: 0.01 MB

Coordinate Information

The following table shows information about the dataset coordinates in the standardised version, including coordinate name remapping from the original, if any:

Coordinate

Description

Units

Size

Min Value

Max Value

Missing %

date_AVISO → TIME

Time

seconds since 1970-01-01T00:00:00Z

(276,)

1993-01-15

2015-12-15

0.0%

Variable Information

The following table shows the mapping from original variable names to standardized names, along with key statistics for each variable.

Variable

Description

Units

Size

Min Value

Max Value

Missing %

MOC_index_ISAS → MOC_SIGMA1

meridional overturning circulation intensity: MOC index over 2002-2015: AVISO surface velocities combined with the time-varying Argo/ISAS-derived geostrophic velocity shear; maximum of the overturning streamfunction in sigma1 density space

sverdrup

(276,)

8.49

30.61

39.1%

err_index_ISAS → MOC_SIGMA1_ERR

meridional overturning circulation intensity, ensemble standard deviation: Standard deviation of a 100-member ensemble of MOC index estimates over 2002-2015, from random perturbations of the ISAS fields and altimetry-derived surface dynamic heights

sverdrup

(276,)

1.81

3.03

39.1%

MOC_index_AVISO → MOC_SIGMA1_PROXY

meridional overturning circulation intensity, altimetry proxy: MOC index over 1993-2015: AVISO surface velocities combined with the 2002-2015 mean Argo/ISAS interior (fixed-interior altimetry proxy); maximum of the overturning streamfunction in sigma1 density space

sverdrup

(276,)

9.91

31.18

0.0%

Metadata (edits applied noted)

The following metadata describes this dataset:

  • Title: Time series of the MOC intensity across the Greenland-Portugal A25 OVIDE line

  • Summary: Time series of the Meridional Overturning Circulation intensity across the Greenland-Portugal A25 OVIDE line

  • Description*: Time series of the Meridional Overturning Circulation intensity across the Greenland-Portugal A25 OVIDE line

  • Program*: OVIDE

  • Project*: OVIDE

  • License*: CC-BY-NC-4.0

  • Acknowledgment: The authors request that Mercier et al. (2015, Progress in Oceanography) be cited alongside this dataset.

  • References: Mercier et al., PIO 2015 http://dx.doi.org/10.1016/j.pocean.2013.11.001

  • Weblink*: https://www.seanoe.org/data/00353/46445/

  • Data Product*: Monthly MOC-intensity time series across the Greenland-Portugal A25 OVIDE line, derived from AVISO altimetry and Argo/ISAS temperature and salinity

  • Time Coverage Start*: 1993-01-15

  • Time Coverage End*: 2015-12-15

  • Contributor Name*: Herlé Mercier, Nathalie Daniault, Pascale Lherminier

  • Contributor Role*: originator, originator, originator

  • Contributor Role Vocabulary*: https://vocab.nerc.ac.uk/collection/G04/current/

  • Contributor Email: , ,

  • Contributor Id: https://orcid.org/0000-0002-1940-617X, https://orcid.org/0000-0001-8357-6627, https://orcid.org/0000-0001-9007-2160

  • Contributing Institutions*: Laboratory for Ocean Physics and Satellite remote sensing (LOPS)

  • Contributing Institutions Vocabulary: https://edmo.seadatanet.org/report/4536

  • Contributing Institutions Role:

  • Conventions*: CF-1.8, ACDD-1.3, OceanSITES-1.5

  • featureType*: timeSeries

  • featureType_vocabulary: https://cfconventions.org/cf-conventions/v1.6.0/cf-conventions.html#_features_and_feature_types

  • Source File*: 46195.nc

  • Source Path*: ~/.amocatlas_data/46195.nc

  • Source Url*: https://www.seanoe.org/data/00353/46445/data/46195.nc

  • Date Created: 10-Oct-2016 11:37:48

  • Date Modified: 2026-08-01T00:00:00Z

  • Processing Software: http://github.com/AMOCcommunity/amocatlas

  • Processing Version: v0.4.0

  • Processing Datasource*: ovide

  • Applied Variable Mapping: {‘date_AVISO’: ‘TIME’, ‘MOC_index_ISAS’: ‘MOC_SIGMA1’, ‘MOC_index_AVISO’: ‘MOC_SIGMA1_PROXY’, ‘err_index_ISAS’: ‘MOC_SIGMA1_ERR’}

  • Description1: The MOC monthly time series was generated following the method described in Mercier et al. (2015).

  • Description2: It combines sea surface velocities from altimetry with geostrophic velocity vertical shear from Argo to compute a meridional overturning stream function.

  • Description3: MOC index is defined as the maximum of this meridional overturning stream function.

  • Description4: The sea surface velocities and the geostrophic velocity shear are estimated from AVISO and from ISAS data, respectively.

  • Description5: The ISAS time series starts on January 2002 and ends on December 2015 (one MOC estimate per month).

  • Description6: Two MOC indexes are provided: The first index (MOC_index_AVISO) was computed over 1993-2015, combining AVISO with the 2002-2015 monthly mean velocity field derived from ISAS.

  • Description7: The second index (MOC_index_ISAS) was computed over 2002-2015, combining AVISO with the monthly velocity fields derived from ISAS.