University of Reading Research Data Archive

Back trajectories released from ocean catchment boundaries

How to cite this Dataset


This dataset contains a subset from a dataset of 14-day back trajectories released from points along the ocean drainage basin catchment boundaries used in Craig, P. et al. (2023).

Six-hourly data from the ERA-Interim re-analysis from the European Centre for Medium Range Weather Forecasts (Dee et al., 2011) and the ROTRAJ model code ( were used to generate the back trajectories. Data were released every 12 hours on 17 vertical levels. The full dataset covers the years 2010-14 and contains 20.3 million trajectories per year.

The dataset defining the ocean catchment boundaries is available from the University of Reading Research Data Archive (

The back trajectories can be read using the Python code provided here.

Craig, P., Ferreira, D. & Methven, J. (2023). A Lagrangian perspective on the Atlantic and Pacific Precipitation-Evaporation asymmetry. JGR Atmospheres (in press).

Dee, D. et al. (2011). The ERA-Interim Reanalysis: configuration and performance of the data assimilation system. Quarterly Journal of the Royal Meteorological Society, 137, 553-597.

Resource Type: Dataset
Creators: Craig, Philip ORCID logoORCID:
Contributors: Ferreira, David ORCID logoORCID: and Methven, John
Rights-holders: Philip Craig
Data Publisher: University of Reading
Publication Year: 2023
Data last accessed: 9 June 2024
Metadata Record URL:
Organisational units: Science > School of Mathematical, Computational and Physical Sciences > Department of Meteorology
Participating Organisations: University of Reading
Keywords: Lagrangian trajectory, ocean catchment, moisture transport, Atlantic-Pacific asymmetry, precipitation-evaporation
Data Availability: OPEN


Download all (.zip)





Actions (Log-in required)

View item View item