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Calculation of Heatwave frequency, duration and magnitude index and their respective trends

Added by Shamal Marathe 7 months ago

Hi,

I have daily gridded tmax data for 35 years. I have calculated heatwave days over each grid point using CDO commands. But when I use command timsum it gives total number of heatwave days over 35 years. But it will not give me how many heatwave events have occurred in each month and what is the duration for a single event. In short I want to count number of days at each grid point satisfying heatwave criteria continuously and if there is a gap then it should return me the number of days for that particular event and then again start counting the number of days when heatwave criteria is satisfied. eca_hwfi and eca_hwdi functions are not giving any information for each year. Please help me in this regard as early as possible.

Thanks and regards,
Shamal


Replies (2)

RE: Calculation of Heatwave frequency, duration and magnitude index and their respective trends - Added by Karin Meier-Fleischer 7 months ago

Hi Shamal,

you have to write a script that splits the data into single years and then do the computations. At the end you can merge the computed data into a single file. There are a few examples in the forums.

Btw, don't do cross postings, thanks.

RE: Calculation of Heatwave frequency, duration and magnitude index and their respective trends - Added by Shamal Marathe 7 months ago

Thanks a lot Karin.

Okay, if I split the data into single years then which cdo command is useful to count the number of events and their respective duration for that year? Could you give me some guidance regarding that.

Regards,
Shamal

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