Hello, I am not able to plot the data correctly because I did not find any documentation where I could objectively explain how to do this.
In the seasonal data of precipitation the minimum values are in the order of 10^-12 and maximum values in the order of 10^-7, how do I change this to millimeters?
In the temperature variable at 2 meters the minimum values are in the order of 0.23354 and maximum in the order of 7.6154, in which unit is this? And how do I convert to degrees celsius?
I am working with the data for "Seasonal forecast anomalies on single levels" and the variables used are: "Total precipitation anomalous rate of accumulation" and "2m temperature anomaly" and the type of product selected was only "Ensemble mean".
https://cds.climate.copernicus.eu/cdsapp#!/dataset/seasonal-postprocessed-single-levels?tab=form
Please, if you can help me with how to do this I would be very grateful.
Best regards,
4 Comments
Eduardo Penabad
Olá Gabriel,
As you can see from the names of the variables you are trying to plot ("Total precipitation anomalous rate of accumulation" and "2m temperature anomaly") and from the name of the dataset you are querying ("Seasonal forecast anomalies on single levels"), the variables you are looking at are "anomalies" in the sense they tell you how different the forecast is from the mean model climate, and that's a good thing in the sense that by construction it implies the mean model bias has been removed, which is something one would expect to be done when dealing with this long range forecasts.
Regarding the units in which these variables are expressed, you can find that information in the table describing the variables included in the "overview" tab of the CDS dataset you are interested in, specifically, I mean here: https://cds.climate.copernicus.eu/cdsapp#!/dataset/seasonal-postprocessed-single-levels?tab=overview
So, in the case of the two variables you mentioned:
I hope that makes sense to you!
Regards,
Eduardo Penabad
C3S Seasonal Forecast
Luiz Gabriel Cassol Machado
Eduardo, one last question, which anomalies maps of the C3S models are anomalies calculated for which period? 1979 to 2019?
Luiz Gabriel Cassol Machado
Thank you for clarifying my question!
Just one more question, on which day and time approximately does the seasonal forecast update of the models that make up the C3S occur?
Eduardo Penabad
From https://climate.copernicus.eu/seasonal-forecasts
"The seasonal forecasts include data as well as graphical products, and are updated every month – currently on the 13th day at 12 UTC. They cover a time period of six months."
Additionally I would recommend you to "watch" (subscribe to) the following seasonal forecast documentation page (and the C3S user's forum announcements), so you get warned when something is announced in them:
Summary of available data
Announcements
C3S Announcements
Regards,
Eduardo Penabad
C3S Seasonal Forecast