Numerical lagrangian data issued from river sources in Indonesia

Particulate matter Sea State Marine debris

The data allows to describe the Lagrangian trajectories of fictive particles from major river discharges in Indenosia in a current field from a numerical ocean circulation model. Additional files also give access to the status of the particles (stranded / not stranded), to the concentration of the particles for each mesh of the grid. Marine plastic debris has become a major man-made pollution problem, with a significant portion of this production ending up in the oceans. This marine pollution is not only a major impact on marine biodiversity but also a societal impact. Through support to marine debris monitoring and modeling, the project aims to raise awareness and knowledge of Indonesian institutions on marine plastic pollution, in order to implement appropriate prevention and recommendation interventions. Our intention is to provide a statistical view of possible sites of plastic accumulation at sea for different seasons and different years impacted by El Niño / La Niña events. The statistics are computed by changing different parameters of the numerical models and Lagrangian schemes and performing a realistic simulation over the period 2016-2020. The project will also include a series of in situ validation, both for Lagrangian trajectory in a specific site off the Java Coast and collect in-situ data for validation of the ocean model (see Dobler et al. 2022).

Data and resources

Time series of simulated particle status with respect to their fate (stranding, out of domain, still at sea)

Time series of simulated particle status with respect to their fate (stranding, out of domain, still at sea) (250 Mo)

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This file is the raw output of Ariane software." ; "ntraj correponds to particle number, nb_output corresponds to time coordinate, which is relative to the release time of the particle." ; " To get the trajectory relative to the simulation t0 time, refer to 2016_2020_x1_traj_lonlat_init_t0_SMOC_UO_Utide_UStokes_scenario4_1d_0.0010_stop.nc file"

Raw output of Ariane software for trajectories (25 Go)

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Time series of 2D-histogram of simulated particles (computed as the sum of particles per grid cell)

Time series of 2D-histogram of simulated particles (358 Mo)

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Trajectories of simulated particles in grid indices and lat/lon coordinates. The position remains unchanged once the particle is considered as stranded.

Trajectories of simulated particles in grid indices (12 Go)

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Digital Object Identifier (DOI)

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Ariane trajectories qualitative - ERDDAP Subset

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Ariane trajectories qualitative - ERDDAP Data Access Form

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Ariane trajectories qualitative - ERDDAP Graph

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Ariane trajectories qualitative - ERDDAP Files

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Coast status - ERDDAP Data Access Form

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Coast status - ERDDAP Graph

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Coast status - ERDDAP Files

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Histo coord - ERDDAP Data Access Form

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Histo coord - ERDDAP Graph

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Histo coord - ERDDAP Files

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Traj lonlat init t0 - ERDDAP Data Access Form

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Traj lonlat init t0 - ERDDAP Graph

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Traj lonlat init t0 - ERDDAP Files

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Additional information

Temporal extent	2016-04-01 – 2020-05-31
Date (creation)	2022-06-15
Date (publication)	2022-07-07
Status	onGoing
Update frequency	asNeeded
Metadata language	fr
License	CC-BY (Creative Commons - Attribution)
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show