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See the presentation here.

Item

Who

Notes

Presentation of the prototype tile template

Matt Griffith

In particular the tileClass references a code table including "simple" tiles as well as tile groupings. This makes it very flexible to be extended in the future
Tile coverage will be kept as a key in the GRIB message. This is necessary so that e.g. 2m temp can be encoded on a snow-covered urban tile.
Different models' implementations of tiles will be accommodated, but with the first entries of the table representing common tile classes which will need to be agreed upon by all cooperating tile models used in DestinE.

A GRIB2 in this form might look something like:

param	tileClass	tileAttribute
Fraction	Temperate grassland	Snow covered
Fraction	Temperate grassland	Flooded
Fraction	Temperate grassland	Flooded and ice covered
Fraction	Temperate grassland	Unmodified
Fraction	Temperate needleleaf evergreen	Snow
Fraction	Temperate needleleaf evergreen	Unmodified
2m temp	Temperate grassland	Snow covered
2m temp	Temperate grassland	Flooded
2m temp	Temperate grassland	Flooded and ice covered
2m temp	Temperate grassland	Unmodified
2m temp	Temperate needleleaf evergreen	Snow
2m temp	Temperate needleleaf evergreen	Unmodified

Comments

All

The feedback on the template design was generally positive. It was noted that of course the devil is in the detail so now that we have the initial prototype in place we will provide an example of a fully filled out GRIB2 with all the appropriate metadata but with no data for now. Trygve/Ulf and others will work on bundling up some tile variable data for us to then fill this prototype with.

We will communicate more in between, but next official meeting 9am 01 Feb 2023

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Minutes: Matthew Griffith
Trygve/Ulf & group to produce tile variable grouped data example.
Produce example tile variable GRIB2 with metadata but no data yet: Matthew Griffith Sebastien Villaume
Schedule next meeting: Matthew Griffith

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