Merge branch 'AS_year_week' into 'master'

add year week as coord not replacing forecast_time

Closes s2s-ai-challenge#29

See merge request aaron.spring/s2s-ai-challenge-template!18

.renku/metadata.yml

@@ -2,7 +2,7 @@
 '@type':
 - http://schema.org/Project
 - http://www.w3.org/ns/prov#Location
-http://schema.org/agent: 0.14.2
+http://schema.org/agent: 0.14.1
 http://schema.org/creator:
   '@id': mailto:aaron.spring@mpimet.mpg.de
   '@type':

CHANGELOG.md

@@ -3,6 +3,10 @@
 ### *unreleased*
 
 - add `eccodes` to [`environment.yml`](https://renkulab.io/gitlab/aaron.spring/s2s-ai-challenge-template/-/blob/master/environment.yml) to resolve `cfgrib` `ImportError` (https://renkulab.io/gitlab/aaron.spring/s2s-ai-challenge/-/issues/26, !15, [Aaron Spring](https://renkulab.io/gitlab/aaron.spring))
+- Create categories by `groupby('week')`. (https://renkulab.io/gitlab/aaron.spring/s2s-ai-challenge/-/issues/29, !18 [Aaron Spring](https://renkulab.io/gitlab/aaron.spring) with help from [Sergi Bech Sala](https://renkulab.io/gitlab/sbechsal7) and [Llorenç Lledó](https://renkulab.io/gitlab/llledo))
+- Regrid observations conservatively with [xesmf](https://pangeo-xesmf.readthedocs.io/) (https://renkulab.io/gitlab/aaron.spring/s2s-ai-challenge/-/issues/32, !18, [Aaron Spring](https://renkulab.io/gitlab/aaron.spring) with help from [Arlan Dirkson](https://renkulab.io/gitlab/arlan.dirkson))
+- Observations now have data at longitude=0 (https://renkulab.io/gitlab/aaron.spring/s2s-ai-challenge/-/issues/35, !18, [Aaron Spring](https://renkulab.io/gitlab/aaron.spring) with help from [Sergi Bech Sala](https://renkulab.io/gitlab/sbechsal7))
+- Missing `tp` observations after leap days added (https://renkulab.io/gitlab/aaron.spring/s2s-ai-challenge/-/issues/31, !18, [Aaron Spring](https://renkulab.io/gitlab/aaron.spring) with help from [David Landry](https://renkulab.io/gitlab/david.landry])
 
 
 ### 2021-06-19: `v0.3.1` *release*