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Author: maxrjones

docs/slides/2025-04.qmd

@@ -59,6 +59,43 @@ Christophe Noël structures the spec based on the Unified Data Model and Conform
 See [the GitHub pull request](https://github.com/zarr-developers/geozarr-spec/pull/64)!
 :::
 
+## Background
+
+Unidata's Common Data Model is an abstract data model that merges the NetCDF, OPenDAP, and HDF5 data models to create a common API for many types of scientific data.
+
+![](_static/CDM.png){fig-alt="Common data model" fig-align="center" width="60%"}
+
+::: footer
+Based on [Christophe Noël's ideas](https://github.com/zarr-developers/geozarr-spec/pull/64)
+:::
+
+## Unified Abstract Data Model
+
+A Unified Abstract Data Model would encapsulate traditional models from the modelling (NetCDF, CF) plus models from the earth observation (GeoTIFF, GDAL) communities
+
+![](_static/UADM.png){fig-alt="Unified data model proposal" fig-align="center" width="60%"}
+
+::: footer
+Based on [Christophe Noël's ideas](https://github.com/zarr-developers/geozarr-spec/pull/64)
+:::
+
+## N-D functionality with E-O optimizations
+
+![](_static/UADM_example.png){fig-alt="Unified data model proposal" fig-align="center" width="60%"}
+
+::: footer
+:::
+
+## Unified Abstract Data Model Implementation
+
+The VirtualiZarr library could be an implementation of the Unified Abstract Data Model
+
+![](_static/virtualizarr.png){fig-alt="Virtualizarr diagram" fig-align="center" width="60%"}
+
+::: footer
+Check it out on [GitHub](https://github.com/zarr-developers/VirtualiZarr)
+:::
+
 ## Upcoming activity
 
 Discussion about conformance classes April 17
@@ -99,8 +136,20 @@ EGU General Assembly including a EOPF Zarr discussion at the Pangeo session
 [Attend the session](https://meetingorganizer.copernicus.org/EGU25/session/52079)
 :::
 
+## Shameless plug
+
+Pangeo showcase immediately following the workshop will include a presentation about new Zarr optimizations!
+
+![](_static/pangeo-showcase.png){fig-alt="Calendar event" fig-align="center" width="60%"}
+
+::: footer
+[Attend the showcase](https://discourse.pangeo.io/t/spring-showcase-close-out-lightning-talks-april-16-2025-at-12-pm-et/5047)
+:::
+
 ## Thanks! 🚀
 
+![](_static/geozarr-examples-repo.png){fig-alt="GitHub source" fig-align="center" width="60%"}
+
 ::: footer
 [Slides](https://developmentseed.org/geozarr-examples/slides/2025-04.html#/title-slide) and [source](https://github.com/developmentseed/geozarr-examples) available online
 :::