# Latest

**URL:** https://discourse.pangeo.io/latest.md

[Latest](https://discourse.pangeo.io/latest.md) · [Categories](https://discourse.pangeo.io/categories.md) · [Tags](https://discourse.pangeo.io/tags.md)

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## [Welcome to Pangeo Discourse](https://discourse.pangeo.io/t/welcome-to-pangeo-discourse/7)

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**Author:** [@system](https://discourse.pangeo.io/u/system)\
**Replies:** 7\
**Last updated:** [March 22, 2025, 10:51pm UTC](https://discourse.pangeo.io/t/welcome-to-pangeo-discourse/7 "2025-03-22T22:51:02Z")

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Pangeo is a community of scientists and software developers working together to improve the way we do scientific research. We work on software tools, such as the python packages Xarray and Dask, as well as customized env…

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## [CNG Forum 2026 - Saturday is the final day for the room block](https://discourse.pangeo.io/t/cng-forum-2026-saturday-is-the-final-day-for-the-room-block/5810)

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**Author:** [@maxrjones](https://discourse.pangeo.io/u/maxrjones)\
**Replies:** 2\
**Last updated:** [September 23, 2026, 3:40pm UTC](https://discourse.pangeo.io/t/cng-forum-2026-saturday-is-the-final-day-for-the-room-block/5810 "2026-09-23T15:40:59Z")

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Hey Pangeo Community, Several of my Development Seed colleagues will be at the 2026 CNG Forum in Snowbird, Utah. I’m sad to not be attending, but I’d encourage others who are interested in sharing knowledge and advancin…

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## [How are reseachers using AI in Earth Observation workflows today?](https://discourse.pangeo.io/t/how-are-reseachers-using-ai-in-earth-observation-workflows-today/5804)

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**Author:** [@rpmenon](https://discourse.pangeo.io/u/rpmenon)\
**Replies:** 1\
**Last updated:** [September 22, 2026, 2:01pm UTC](https://discourse.pangeo.io/t/how-are-reseachers-using-ai-in-earth-observation-workflows-today/5804 "2026-09-22T14:01:13Z")

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Hi everyone, I’m an early-career researcher working primarily with ICESat-2 and other cryosphere datasets, and I’ve been thinking a lot about how AI is changing Earth observation research. I’ve seen several exciting pr…

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## [Decode GeoTIFF to GPU memory](https://discourse.pangeo.io/t/decode-geotiff-to-gpu-memory/5214)

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**Author:** [@weiji14](https://discourse.pangeo.io/u/weiji14)\
**Replies:** 15\
**Last updated:** [September 21, 2026, 1:10am UTC](https://discourse.pangeo.io/t/decode-geotiff-to-gpu-memory/5214 "2026-09-21T01:10:46Z")

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Sharing this blog post on speeding up Cloud-optimized GeoTIFF (COG) reads using a CUDA GPU library called nvTIFF that I’ve been playing around with for the past month. Hopefully it’ll be useful for folks struggling to us…

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## [Pangeo Showcase: "insitubatch: Streaming ML Batches from Cloud Zarr Without Resharding" (September 16, 12 PM EDT / 16:00 UTC)](https://discourse.pangeo.io/t/pangeo-showcase-insitubatch-streaming-ml-batches-from-cloud-zarr-without-resharding-september-16-12-pm-edt-16-00-utc/5812)

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**Author:** [@maxrjones](https://discourse.pangeo.io/u/maxrjones)\
**Replies:** 3\
**Last updated:** [September 16, 2026, 6:39pm UTC](https://discourse.pangeo.io/t/pangeo-showcase-insitubatch-streaming-ml-batches-from-cloud-zarr-without-resharding-september-16-12-pm-edt-16-00-utc/5812 "2026-09-16T18:39:10Z")

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Title: “insitubatch: Streaming ML Batches from Cloud Zarr Without Resharding” Speaker: David Stuebe When: Wednesday, September 16, 2026 at 12 PM EDT (2026-09-16T16:00:00Z (UTC)) Where: Launch Meeting - Zoom Details: …

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## [Experiment: querying large Zarr datasets directly from PostgreSQL/PostGIS without ETL](https://discourse.pangeo.io/t/experiment-querying-large-zarr-datasets-directly-from-postgresql-postgis-without-etl/5809)

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**Author:** [@HamzaMPSY](https://discourse.pangeo.io/u/HamzaMPSY)\
**Replies:** 3\
**Last updated:** [September 16, 2026, 6:55am UTC](https://discourse.pangeo.io/t/experiment-querying-large-zarr-datasets-directly-from-postgresql-postgis-without-etl/5809 "2026-09-16T06:55:35Z")

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Experiment: querying Zarr directly from PostgreSQL/PostGIS I’ve been working on a Zarr FDW for PostgreSQL and I’d like to get feedback from people who work with real Zarr datasets. The idea came from a workflow I keep …

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## [Xue: A binary format for animating weather forecasts in the browser](https://discourse.pangeo.io/t/xue-a-binary-format-for-animating-weather-forecasts-in-the-browser/5818)

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**Author:** [@ringsaturn](https://discourse.pangeo.io/u/ringsaturn)\
**Replies:** 3\
**Last updated:** [September 15, 2026, 2:19pm UTC](https://discourse.pangeo.io/t/xue-a-binary-format-for-animating-weather-forecasts-in-the-browser/5818 "2026-09-15T14:19:16Z")

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I’ve been working on weather/climate data visualization for a few years. GRIB/NetCDF are good file formats for data distribution. Zarr is good for large-scale datasets, especially for machine learning cases. But none of…

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## [WakeAtlas: an ocean-data exploration globe — feedback welcome](https://discourse.pangeo.io/t/wakeatlas-an-ocean-data-exploration-globe-feedback-welcome/5817)

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**Author:** [@Stalkerpve](https://discourse.pangeo.io/u/Stalkerpve)\
**Replies:** 0\
**Last updated:** [September 11, 2026, 10:27pm UTC](https://discourse.pangeo.io/t/wakeatlas-an-ocean-data-exploration-globe-feedback-welcome/5817 "2026-09-11T22:27:20Z")

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Hi everyone, I’m building WakeAtlas (https://wakeatlas.uk/), a browser-based globe for exploring marine data, and I’d welcome feedback from people working with ocean observations and models. It brings together Argo tem…

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## [WxData 2.3 Released](https://discourse.pangeo.io/t/wxdata-2-3-released/5815)

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**Author:** [@edrewitz](https://discourse.pangeo.io/u/edrewitz)\
**Replies:** 0\
**Last updated:** [September 11, 2026, 12:34am UTC](https://discourse.pangeo.io/t/wxdata-2-3-released/5815 "2026-09-11T00:34:57Z")

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WxData 2.3 has been released on conda-forge and pypi. conda install wxdata (conda-forge) OR pip install wxdata (pypi) WxData 2.3 has several new end-to-end weather data clients geared for use in automated Python script…

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## [FROST: Front Range Open Science Teamup](https://discourse.pangeo.io/t/frost-front-range-open-science-teamup/3293)

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**Author:** [@dcherian](https://discourse.pangeo.io/u/dcherian)\
**Replies:** 43\
**Last updated:** [September 10, 2026, 4:47pm UTC](https://discourse.pangeo.io/t/frost-front-range-open-science-teamup/3293 "2026-09-10T16:47:37Z")

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A decent number of us are in the Colorado Front Range area. Perhaps we should have a monthly meetup group? Suggestions on name are welcome. Comment here to sign up to be added to a calendar invite / deal with a schedul…

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## [Public Virtual Zarr of the NASA (NEX-GDDP-CMIP6) Dataset](https://discourse.pangeo.io/t/public-virtual-zarr-of-the-nasa-nex-gddp-cmip6-dataset/5802)

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**Author:** [@norlandrhagen](https://discourse.pangeo.io/u/norlandrhagen)\
**Replies:** 3\
**Last updated:** [August 24, 2026, 8:52am UTC](https://discourse.pangeo.io/t/public-virtual-zarr-of-the-nasa-nex-gddp-cmip6-dataset/5802 "2026-08-24T08:52:30Z")

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In a recent project, I needed some downscaled CMIP6 data. I created a Virtual Zarr store of the NEX-GDDP-CMIP6 dataset. I wanted to share it if anyone has use of this dataset and doesn’t want to go through the work of re…

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## [AMS 2027 EIPT Sessions](https://discourse.pangeo.io/t/ams-2027-eipt-sessions/5806)

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**Author:** [@mgrover1](https://discourse.pangeo.io/u/mgrover1)\
**Replies:** 0\
**Last updated:** [August 6, 2026, 6:59pm UTC](https://discourse.pangeo.io/t/ams-2027-eipt-sessions/5806 "2026-08-06T18:59:10Z")

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AMS 2027 (Denver): EIPT sessions of interest to the Pangeo community At next year’s American Meteorological Society (AMS) Annual Meeting, there are several sessions within the 43rd Conference on Environmental Information…

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## [WxData 2.2 Released](https://discourse.pangeo.io/t/wxdata-2-2-released/5805)

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**Author:** [@edrewitz](https://discourse.pangeo.io/u/edrewitz)\
**Replies:** 0\
**Last updated:** [August 5, 2026, 9:37pm UTC](https://discourse.pangeo.io/t/wxdata-2-2-released/5805 "2026-08-05T21:37:26Z")

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Hi everyone! There have been a lot of significant updates to the WxData Python package since my last post in here. Background on WxData WxData is an open-source Python package (first released in November 2025) that he…

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## [Problems downloading CMIP6 historical simulations from PANGEO gallery](https://discourse.pangeo.io/t/problems-downloading-cmip6-historical-simulations-from-pangeo-gallery/5575)

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**Author:** [@nrchow](https://discourse.pangeo.io/u/nrchow)\
**Replies:** 5\
**Last updated:** [August 3, 2026, 12:38pm UTC](https://discourse.pangeo.io/t/problems-downloading-cmip6-historical-simulations-from-pangeo-gallery/5575 "2026-08-03T12:38:59Z")

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Hi good folks. So I am using this library: GitHub - dr-ko/python\_pangeo\_cmip6: Python scripts to download CMIP6 data from Pangeo Gallery · GitHub, to download historical simulations, particularly large ensembles. For som…

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## [Where Do You Spend the Most Time in an ICESat-2 Workflow?](https://discourse.pangeo.io/t/where-do-you-spend-the-most-time-in-an-icesat-2-workflow/5763)

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**Author:** [@rpmenon](https://discourse.pangeo.io/u/rpmenon)\
**Replies:** 2\
**Last updated:** [July 31, 2026, 3:59pm UTC](https://discourse.pangeo.io/t/where-do-you-spend-the-most-time-in-an-icesat-2-workflow/5763 "2026-07-31T15:59:58Z")

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Hi everyone, I’ve been working with ICESat-2 datasets (particularly ATL20) for about a year now, and recently I’ve been thinking more broadly about the end-to-end workflow involved in working with these data, from disco…

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## [EGU27 Pangeo session](https://discourse.pangeo.io/t/egu27-pangeo-session/5803)

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**Author:** [@tinaok](https://discourse.pangeo.io/u/tinaok)\
**Replies:** 0\
**Last updated:** [July 29, 2026, 4:30pm UTC](https://discourse.pangeo.io/t/egu27-pangeo-session/5803 "2026-07-29T16:30:27Z")

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Hi everyone, The call for EGU27 session proposals is out! I’m thinking of proposing yet another Pangeo session for EGU27, and I’m looking for a few co-conveners. Any volunteers? :blush:

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## [New Working Group for Distributed Array Computing](https://discourse.pangeo.io/t/new-working-group-for-distributed-array-computing/2734)

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**Author:** [@TomNicholas](https://discourse.pangeo.io/u/TomNicholas)\
**Replies:** 59\
**Last updated:** [July 27, 2026, 5:38pm UTC](https://discourse.pangeo.io/t/new-working-group-for-distributed-array-computing/2734 "2026-07-27T17:38:40Z")

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We’re forming a new working group to explore alternative parallel computing frameworks to dask, such as apache-beam/cubed/ramba. I propose we try a bi-weekly hour-long meeting, starting next week. If you’re interested c…

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## [Dask in Rust -- Frisky](https://discourse.pangeo.io/t/dask-in-rust-frisky/5755)

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**Author:** [@mrocklin](https://discourse.pangeo.io/u/mrocklin)\
**Replies:** 6\
**Last updated:** [July 24, 2026, 7:12pm UTC](https://discourse.pangeo.io/t/dask-in-rust-frisky/5755 "2026-07-24T19:12:10Z")

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I rebuilt the Dask scheduler and distributed compute system in Rust. It’s called Frisky. It’s fast, but also very early and could use some adventurous users to hammer on it. Here is a general overview: Why - Frisky H…

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## [Fall Pangeo Showcase: seeking conveners and presenters](https://discourse.pangeo.io/t/fall-pangeo-showcase-seeking-conveners-and-presenters/5799)

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**Author:** [@maxrjones](https://discourse.pangeo.io/u/maxrjones)\
**Replies:** 0\
**Last updated:** [July 23, 2026, 10:07pm UTC](https://discourse.pangeo.io/t/fall-pangeo-showcase-seeking-conveners-and-presenters/5799 "2026-07-23T22:07:22Z")

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Hi folks, we’re getting started on organizing the fall Pangeo showcase. It’d be awesome to get more folks involved in organizing, please post here or DM me if you’re interested in joining the team with me and @chuckwondo …

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## [Best way of copying and rechunking a remote zarr store](https://discourse.pangeo.io/t/best-way-of-copying-and-rechunking-a-remote-zarr-store/5789)

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**Author:** [@guidocioni](https://discourse.pangeo.io/u/guidocioni)\
**Replies:** 2\
**Last updated:** [July 23, 2026, 1:10pm UTC](https://discourse.pangeo.io/t/best-way-of-copying-and-rechunking-a-remote-zarr-store/5789 "2026-07-23T13:10:01Z")

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I want to create a local copy of some of the variables contained in one of the many ERA5 zarr replicas available (here I chose to use the google cloud storage one for convenience). Why? Because we need quick access for a…

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## [Ai-science-toolkit: reviewer "agents" and research skills for Claude Code, for climate and atmospheric science](https://discourse.pangeo.io/t/ai-science-toolkit-reviewer-agents-and-research-skills-for-claude-code-for-climate-and-atmospheric-science/5796)

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**Author:** [@dgilford](https://discourse.pangeo.io/u/dgilford)\
**Replies:** 0\
**Last updated:** [July 20, 2026, 8:11pm UTC](https://discourse.pangeo.io/t/ai-science-toolkit-reviewer-agents-and-research-skills-for-claude-code-for-climate-and-atmospheric-science/5796 "2026-07-20T20:11:32Z")

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I’ve been using Claude Code (Anthropic’s terminal coding agent) in my climate and weather work, and over time I built up reusable “skills” and reviewer “agents” tuned for AI-assisted scientific research. I’ve cleaned the…

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## [Open Call Postdoc - Global Delta Dynamics from Satellite Observations](https://discourse.pangeo.io/t/open-call-postdoc-global-delta-dynamics-from-satellite-observations/5786)

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**Author:** [@deltahub](https://discourse.pangeo.io/u/deltahub)\
**Replies:** 0\
**Last updated:** [July 16, 2026, 12:09am UTC](https://discourse.pangeo.io/t/open-call-postdoc-global-delta-dynamics-from-satellite-observations/5786 "2026-07-16T00:09:07Z")

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The DELTA-Hub project (Horizon Europe, ERA Chair Prof. Edward Anthony) at the University of Bucharest invites applications for a 2-year postdoctoral position on global delta dynamics from satellite observations (SWOT, NI…

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## [Virtual GRIB ingestion via Gribberish](https://discourse.pangeo.io/t/virtual-grib-ingestion-via-gribberish/5785)

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**Author:** [@TomNicholas](https://discourse.pangeo.io/u/TomNicholas)\
**Replies:** 0\
**Last updated:** [July 15, 2026, 10:30pm UTC](https://discourse.pangeo.io/t/virtual-grib-ingestion-via-gribberish/5785 "2026-07-15T22:30:57Z")

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Ever wonder why GRIB is the way it is? Read our new blog post on virtually ingesting GRIB data into Icechunk using Gribberish and VirtualiZarr!

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## [Help shape HDF5 safety, security, and privacy: FOSSY Aug 6 + HDF5 SHINES workshop Aug 12](https://discourse.pangeo.io/t/help-shape-hdf5-safety-security-and-privacy-fossy-aug-6-hdf5-shines-workshop-aug-12/5784)

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**Author:** [@gheber](https://discourse.pangeo.io/u/gheber)\
**Replies:** 0\
**Last updated:** [July 15, 2026, 1:50pm UTC](https://discourse.pangeo.io/t/help-shape-hdf5-safety-security-and-privacy-fossy-aug-6-hdf5-shines-workshop-aug-12/5784 "2026-07-15T13:50:24Z")

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Two August events will focus on making HDF5 more transparent, inspectable, and secure: FOSSY 2026 — Aug 6, Vancouver: A GNU poke-based, machine-readable file-format specification for HDF5 HDF5 SHINES / Safe-OSE Worksho…

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## [Pangeo Showcase: "Ensemble Weather Forecast Data Streaming with Kerchunk / VirtualiZarr" (November 12, 2025 at 12 PM ET)](https://discourse.pangeo.io/t/pangeo-showcase-ensemble-weather-forecast-data-streaming-with-kerchunk-virtualizarr-november-12-2025-at-12-pm-et/5442)

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**Author:** [@maxrjones](https://discourse.pangeo.io/u/maxrjones)\
**Replies:** 9\
**Last updated:** [July 9, 2026, 2:27pm UTC](https://discourse.pangeo.io/t/pangeo-showcase-ensemble-weather-forecast-data-streaming-with-kerchunk-virtualizarr-november-12-2025-at-12-pm-et/5442 "2026-07-09T14:27:12Z")

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Title: “Ensemble Weather Forecast Data Streaming with Kerchunk / VirtualiZarr” Invited Speaker: Nishadh Kalladath When: Wednesday, November 12, 2025 at 12 PM EST (2025-11-12T17:00:00Z (UTC)) Where: Launc…

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## [OpenMeteoApi.NET 1.0.1](https://discourse.pangeo.io/t/openmeteoapi-net-1-0-1/5779)

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**Author:** [@edrewitz](https://discourse.pangeo.io/u/edrewitz)\
**Replies:** 0\
**Last updated:** [July 7, 2026, 3:02am UTC](https://discourse.pangeo.io/t/openmeteoapi-net-1-0-1/5779 "2026-07-07T03:02:54Z")

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I’ve been casually teaching myself the C# programming language for the past couple of months with the goal of picking up C# as my secondary language to Python. I am proud to announce that I have successfully publish…

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## [AGU 2026 Session SY029. Open Source Tools for the Earth & Space Sciences: Breaking Discipline Silos to Accelerate Discovery](https://discourse.pangeo.io/t/agu-2026-session-sy029-open-source-tools-for-the-earth-space-sciences-breaking-discipline-silos-to-accelerate-discovery/5778)

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**Author:** [@Mikejmnez](https://discourse.pangeo.io/u/Mikejmnez)\
**Replies:** 0\
**Last updated:** [July 6, 2026, 10:43pm UTC](https://discourse.pangeo.io/t/agu-2026-session-sy029-open-source-tools-for-the-earth-space-sciences-breaking-discipline-silos-to-accelerate-discovery/5778 "2026-07-06T22:43:12Z")

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This is a call for abstracts to the AGU Fall Session on cross-disciplinary open-source software — bringing together developers and users from across the full AGU spectrum – from Earth’s deep interior to its surface, ocea…

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## [\[Data Announcement\] Revamped chunking for ERA5 Zarr datasets on Earth Data Hub](https://discourse.pangeo.io/t/data-announcement-revamped-chunking-for-era5-zarr-datasets-on-earth-data-hub/5776)

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**Author:** [@Nicola\_Masotti](https://discourse.pangeo.io/u/Nicola_Masotti)\
**Replies:** 0\
**Last updated:** [July 6, 2026, 3:34pm UTC](https://discourse.pangeo.io/t/data-announcement-revamped-chunking-for-era5-zarr-datasets-on-earth-data-hub/5776 "2026-07-06T15:34:28Z")

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\[Data Announcement\] Revamped chunking for ERA5 Zarr datasets on Earth Data Hub The Earth Data Hub just migrated all its ERA5 Zarr datasets to Zarr v3 and revamped their chunking along the way! Here’s what’s changed: …

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## [Computing the El Niño index from ERA5 with SQL](https://discourse.pangeo.io/t/computing-the-el-nino-index-from-era5-with-sql/5762)

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**Author:** [@Jayendra\_Parmar](https://discourse.pangeo.io/u/Jayendra_Parmar)\
**Replies:** 3\
**Last updated:** [July 6, 2026, 3:27pm UTC](https://discourse.pangeo.io/t/computing-the-el-nino-index-from-era5-with-sql/5762 "2026-07-06T15:27:24Z")

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Sharing a small experiment that might interest folks here. I computed the full Oceanic Niño Index (ONI) — every overlapping 3-month season from 1950 to today — as a single SQL query running in place against ARCO-ERA5 on …

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## [Best Practice for Machine Learning with Huge Datasets](https://discourse.pangeo.io/t/best-practice-for-machine-learning-with-huge-datasets/4635)

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**Author:** [@yonghan](https://discourse.pangeo.io/u/yonghan)\
**Replies:** 2\
**Last updated:** [June 27, 2026, 2:19am UTC](https://discourse.pangeo.io/t/best-practice-for-machine-learning-with-huge-datasets/4635 "2026-06-27T02:19:57Z")

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Hey folks, I have been playing around with numerical weather forecasting using deep learning for a while. I mainly use the hourly reanalysis ERA5 datasets. The size of ERA5 datasets is huge, especially if you prefer a h…

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