# Eulerian+Lagrangian particle tracking dataset freely accessible

**URL:** <https://forum.access-hive.org.au/t/eulerian-lagrangian-particle-tracking-dataset-freely-accessible/3676>\
**Category:** COSIMA\
**Tags:** cloud, zarr, python, particle-tracking\
**Created:** [12 September 2024 00:20 UTC](https://forum.access-hive.org.au/t/eulerian-lagrangian-particle-tracking-dataset-freely-accessible/3676 "2024-09-12T00:20:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Aidan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aidan/32/42_2.png) [@Aidan](https://forum.access-hive.org.au/u/Aidan)\
**Post date:** [12 September 2024 00:20 UTC](https://forum.access-hive.org.au/t/eulerian-lagrangian-particle-tracking-dataset-freely-accessible/3676/1 "2024-09-12T00:20:47Z")

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How cool is this!

> **[Cloud-optimized Eulerian+Lagrangian dataset freely accessible](https://discourse.pangeo.io/t/cloud-optimized-eulerian-lagrangian-dataset-freely-accessible/4496/)**
>
> Hello Pangeo community! I wanted to share with you what I think is an exciting freely-accessible, cloud-optimized, dataset: HYCOM-OceanTrack! This dataset comprises sea surface height and near-surface velocity at hourly time steps on an Eulerian...

> I wanted to share with you what I think is an exciting freely-accessible, cloud-optimized, dataset: [HYCOM-OceanTrack](https://registry.opendata.aws/hycom-global-drifters/)! This dataset comprises sea surface height and near-surface velocity **at hourly time steps on an Eulerian grid from a global [HYCOM](https://www.hycom.org/), 1-year, 1/25 degree** simulation resolving the ocean general circulation and the tides. In addition, it comes with nearly **13M Lagrangian trajectories of particles** released in the Eulerian velocity fields thanks to [Ocean Parcels](https://oceanparcels.org/#developmentstatus).

No idea who is still watching little dots on ocean plots, but may be of interest @hrsdawson @adele-morrison ?

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**Author:** ![Aidan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aidan/32/42_2.png) [@Aidan](https://forum.access-hive.org.au/u/Aidan)\
**Post date:** [12 September 2024 00:30 UTC](https://forum.access-hive.org.au/t/eulerian-lagrangian-particle-tracking-dataset-freely-accessible/3676/2 "2024-09-12T00:30:08Z")

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The `clouddrift` package looks pretty cool too

> **[GitHub - Cloud-Drift/clouddrift: CloudDrift accelerates the use of Lagrangian data...](https://github.com/Cloud-Drift/clouddrift)**
>
> CloudDrift accelerates the use of Lagrangian data for atmospheric, oceanic, and climate sciences.

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**Author:** ![hrsdawson](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/hrsdawson/32/218_2.png) [@hrsdawson](https://forum.access-hive.org.au/u/hrsdawson)\
**Post date:** [12 September 2024 04:06 UTC](https://forum.access-hive.org.au/t/eulerian-lagrangian-particle-tracking-dataset-freely-accessible/3676/3 "2024-09-12T04:06:04Z")

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Amazing! Thanks for sharing @Aidan.