sdtaylor / phenology_forecasts

The backend for http://phenology.naturecast.org
http://phenology.naturecast.org
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which time in reanalysis to use? #6

Open sdtaylor opened 6 years ago

sdtaylor commented 6 years ago

The CFSv2 reanalysis has 6 hour timesteps, but between those timesteps it has hourly "forecasts" where the model is run with no assimilation. Since I'm just getting daily means I only want to the the primary timesteps at 6 hour intervals. But this description says the 00 forecast for some things is essential invalid, but I'm not sure if it applies to the tmp2m that I'm using.

Text from the pdf

Important Note: The forecast at the first time step (f00) of 3 minutes constitutes a spin up of the model hysics, and extreme care should be taken when using it as a proxy of any type of validation. IT IS NOT THE ANALYSIS.

The tmp2m files I'm using don't have this 3 minute initial timestep so for the time being I'm using the initial timestep.