# Pangeo - Online Show & Tell

###### tags: `S&T` `pangeo`

## October 6, 2022: DGGS and their __potential__ impact in Geoscience and Geospatial communities

Thank you for joining the Pangeo online Show & Tell 🎬 💬 !

We're delighted to have you here 🎉

**What?** [Pangeo](https://pangeo.io/) is a community-centric initiative that promotes open, reproducible, and scalable geoscience.

Show and Tell are **online calls** to gather feedback informally, but more importantly, it's a monthly celebration of what the Pangeo community has accomplished.

S&T are organised by members of **Pangeo Europe continental meetings** (see notes of previous meetings [here](https://pangeo.io/meeting-notes.html)).

**When?** 8 October 2022, 14:00 - 15:00 CEST ([see in your time zone](https://arewemeetingyet.com/Paris/2022-09-01/14:00))

**Next call:** TBC, November 2022

**How?** **Join Zoom Meeting**
https://cnrs.zoom.us/j/94270013019?pwd=eVB1OUJ6SW5lQ0N5MVB4aGhBWUNGUT09

***All questions, comments and recommendations are welcome!***

### Code of conduct :heavy_check_mark:

* [Take a moment to read this](https://github.com/pangeo-data/governance/blob/master/conduct/code_of_conduct.md)

### Chat (Gitter) :loudspeaker:
* [Pangeo Global](https://gitter.im/pangeo-data/Lobby)
* [Pangeo Europe](https://gitter.im/pangeo-data/Europe)

### Sign-up :pencil:

**Name + an emoji to represent your mood today ([emoji cheatsheet](https://github.com/ikatyang/emoji-cheat-sheet/blob/master/README.md))**

*(Remember that this is a public document. You can use a pseudonym if you'd prefer.)*

* Pier Lorenzo Marasco, SEIDOR, 🤪
* Anne Fouilloux, Simula Research Laboratory, Norway, 😃
* Tina Odaka, UMR-LOPS IFREMER France, :sunflower:
* Justus Magin, UMR-LOPS Ifremer France, :ocean:
* Alejandro Coca-Castro, the Alan Turing Institute UK, :taco:
* Greg Duveiller, MPI-BGC, Jena, Germany :footprints:
* Alexander Kmoch, Tartu University, Estonia :earth_africa:

### Notes and Q&A :question:

*(Add here any question or issue you might need assistance. Feel free to put it below or ask in the [Pangeo Europe Gitter](https://gitter.im/pangeo-data/Europe))*

* Q: What library should we use to "interpolate/convert" from geotiff to DGGS? I mean for physical quantities.

A: Depends.

* Q: Can the ID of hexagons be made to be intuitive (i.e. to include notions of lat and lon for for instance)?

A: No, it's systematic.

* Tips:
* check the Binder and the Presi

# Previous talks

## September 1, 2022: Handling large geo data with Julia

### Discourse :information_source: [Pangeo Discourse Ad](https://discourse.pangeo.io/t/september-1-2022-handling-large-geo-data-with-julia/2656)

### Recording :tv: [Pangeo YouTube Channel](https://youtu.be/18_e8wmI9Os)
### Sign-up :pencil:

**Name + an emoji to represent your mood today ([emoji cheatsheet](https://github.com/ikatyang/emoji-cheat-sheet/blob/master/README.md))**

*(Remember that this is a public document. You can use a pseudonym if you'd prefer.)*

* Anne 😄
* Alejandro :hot_pepper:
* Lorenzo 🙃
* Tina 💮🏫
* Felix :smiley:
* Fabian :sunflower:
* Jean :grinning:
* Holger
* Guillaume :children_crossing:

### Notes and Q&A :question:

*(Add here any question or issue you might need assistance. Feel free to put it below or ask in the [Pangeo Europe Gitter](https://gitter.im/pangeo-data/Europe))*

git hub repo of this presentation: https://github.com/JuliaDataCubes/ESDLTutorials

* Q: plotting is based on matplotlib/hvplot like in python? how is it different from python enviroment?

A: In this example, the backend is matplotlib. It can be something else.

* Q: when plotting `plot(europe.time.values,europe[Variable="air_temperature_2m", lat=50, lon=11].data)` do we need to provide the exact lat/lon or the nearest? point is selected?

* Q: Can users set the strategy for imputing missing values?
A: yes, it needs to be passed through the function

* Q: Can you transform YAXArray objects to sort of xarray.Dataset?
A: There is DataSets object

* Tips: cutting connection to rmprocs(workers())
starting process : addprocs, it can be for on the same node as threads, it can be process outside the node that main julila process is running.

* Tips: docstring is with '?' , for example ?addprocs

* Tips: 'a .+ b ' is for applying the '+' operation for all the element of 'a' . For example if you have a=rand(3,3) b=rand(3,3), 'a .* b ' and 'a * b' do not have same answer.

> *This HackMD is adapted under a CC-BY license from [_the EDS_ show and tell template](https://github.com/alan-turing-institute/environmental-ds-book/blob/master/book/community/templates/template-coworking-showtell.md)*