SF2021 Datasets

altimetry_moc_transport_1993_2020_18mos_smoothed.nc

Dataset Overview

  • Project: Satellite proxy for the AMOC at 26N

  • Description: A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry

  • Source File: altimetry_moc_transport_1993_2020_18mos_smoothed.nc

  • Data Product: A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry

  • License: CC-BY-4.0

  • Time Coverage: 1993-01-17 to 2018-12-17

  • Record Length: 312 observations (25.9 years)

  • Sampling Frequency: monthly

Citation:

Sanchez-Franks, A., Frajka-Williams, E., Moat, B. I., and Smeed, D. A.: A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry, Ocean Sci., 17, 1321-1340, https://doi.org/10.5194/os-17-1321-2021, 2021

Acknowledgement:

The authors thank the reviewers for their helpful comments. The authors also thank the many officers, crew, and technicians who helped to collect these data. Alejandra Sanchez-Franks also thanks Louis Clément for helpful discussions on normal-mode decomposition. This research has been supported by grants from the UK Natural Environment Research Council for the RAPID-AMOC programme and the ACSIS programme (grant no. NE/N018044/1) as well as funding from the European Union Horizon 2020 Research and Innovation programme BLUE-ACTION (grant no. 727852).

Dataset Visualization

AMOC time series plot

Time series plot for SF2021 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 %

sat_time → TIME

Time

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

(312,)

1993-01-17

2018-12-17

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 %

sat_moc_filt → MOC_PROXY

MOC proxy: constructed by adding the satellite-derived TRANS_GS and TRANS_UMO with the TRANS_EK, obtained from ERA5 wind stress

sverdrup

(312,)

-3.76

2.83

0.0%

sat_gs_filt → TRANS_GS_PROXY

Gulf Stream / Florida Current: The strength of the Gulf Stream transport through the Florida Straits between Florida and Bahamas, as measured by a submarine telephone cable.

sverdrup

(312,)

-0.64

1.09

0.0%

sat_umo_filt → TRANS_UMO_PROXY

UMO proxy: sum of the western boundary wedge transport, the hypsometric mass compensation, and the internal geostrophic transport over the top 1100 m

sverdrup

(312,)

-2.37

3.20

0.0%

Metadata (edits applied noted)

The following metadata describes this dataset:

  • Summary: A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry

  • Description*: A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry

  • Project*: Satellite proxy for the AMOC at 26N

  • License*: CC-BY-4.0

  • Acknowledgment*: The authors thank the reviewers for their helpful comments. The authors also thank the many officers, crew, and technicians who helped to collect these data. Alejandra Sanchez-Franks also thanks Louis Clément for helpful discussions on normal-mode decomposition. This research has been supported by grants from the UK Natural Environment Research Council for the RAPID-AMOC programme and the ACSIS programme (grant no. NE/N018044/1) as well as funding from the European Union Horizon 2020 Research and Innovation programme BLUE-ACTION (grant no. 727852).

  • Weblink*: https://zenodo.org/records/18941523

  • Data Product*: A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry

  • Time Coverage Start*: 1993-01-17

  • Time Coverage End*: 2018-12-17

  • Contributor Name*: Alejandra Sanchez-Franks

  • Contributor Role*: originator

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

  • Contributor Email:

  • Contributor Id:

  • Contributing Institutions*: National Oceanographic Centre

  • Contributing Institutions Vocabulary:

  • 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*: altimetry_moc_transport_1993_2020_18mos_smoothed.nc

  • Source Path*: ~/.amocatlas_data/altimetry_moc_transport_1993_2020_18mos_smoothed.nc

  • Source Url*: https://zenodo.org/records/18941523/files/altimetry_moc_transport_1993_2020_18mos_smoothed.nc

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

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

  • Processing Version: v0.4.0

  • Processing Datasource*: sf2021

  • Applied Variable Mapping: {‘sat_time’: ‘TIME’, ‘sat_moc_filt’: ‘MOC_PROXY’, ‘sat_umo_filt’: ‘TRANS_UMO_PROXY’, ‘sat_gs_filt’: ‘TRANS_GS_PROXY’}