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Dataset

 

NCEO LTSS: Global Ocean Lagrangian Trajectories, v1.0, 1998-2018 (OLTraj)

Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2020-08-21
DOI Publication Date: 2020-08-21
Download Stats: last 12 months

Abstract

The National Centre for Earth Observation (NCEO) Long Term Science Single Centre (LTSS) Global Ocean Lagrangian Trajectories (OLTraj) provides 30-day forward and backward Lagrangian trajectories based on surface velocities from an ocean reanalysis. Each trajectory represents the path that a water mass would move along starting at a given pixel and a given day. OLTraj can be thus used to implement analyses of oceanic data in a Lagrangian framework. The purpose of OLTraj is to allow non-specialists to conduct Lagrangian analyses of surface ocean data.

The dataset has global coverage and spans 1998-2018 with a daily temporal resolution. The trajectories were generated starting from zonal and meridional model velocity fields that were integrated using the LAMTA package (6-hour time step) as described in Nencioli et al., 2018. Please see the documentation section below for further information.

Citable as:  Dall'Olmo, G.; Nencioli, F. (2020): NCEO LTSS: Global Ocean Lagrangian Trajectories, v1.0, 1998-2018 (OLTraj). Centre for Environmental Data Analysis, 21 August 2020. doi:10.5285/b9c80907bb37487fa1744f3c86f3e792. http://dx.doi.org/10.5285/b9c80907bb37487fa1744f3c86f3e792
Abbreviation: Not defined
Keywords: Global, Ocean Lagrangian Trajectories, LAMTA, zonal, meridional model

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
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://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).

File Format:
NetCDF V4.0

Process overview

This dataset was generated by the computation detailed below.
Title NCEO OLTraj V1.0
Abstract The trajectories were generated starting from zonal and meridional model velocity fields; please see Global Ocean Physics Reanalysis reference in the documentation section for more details on the model used. The output of which was integrated using the LAMTA package (6-hour time step) as previously described in Nencioli et al., 2018 (also available in the documentation section).
Input Description None
Output Description None
Software Reference None
  • var_id: lat
  • var_id: lon
  • var_id: time
  • var_id: trajlat
  • var_id: trajlon

Co-ordinate Variables

Coverage
Temporal Range
Start time:
1998-01-01T00:00:00
End time:
2018-11-25T00:00:00
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°