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Pattern December to Remember

For some perspective, this ridge would still give us above average heights even if it happened in July

kXPpR9Zpa2.png

At least when the bathwater sloshes, it’ll still be warm.


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I honestly should strongly consider making my own MJO composites (including ones for lags, phase speed, etc) and update some of those other plots for Miller As and Bs on my webpage. Think I can make the plots look a lot nicer and use better reanalysis datasets (ERA-5 instead of NCEP-R1 for ex).
I've been playing around with the data. I'm interested in seeing the snow distribution for each phase based on geographical area as well. The only concern I have is that the sample size is so small as some phases only have a couple of snow events.
 
I've been playing around with the data. I'm interested in seeing the snow distribution for each phase based on geographical area as well. The only concern I have is that the sample size is so small as some phases only have a couple of snow events.

Yep, that's the case in many instances, using a 45-60 day sliding centered window around each one could help increase sample size. Another solution would be to just "create" more data, i.e. construct an MJO index based on zonal + upper level winds, VP200, and SLPa that goes back to 1950 in ERA-5, which would afford us an additional 25 years to work w/ than current RMM MJO (1974-2021). Been trying to wrap my head around how to go about doing something like this, but it would be really useful to a lot of people and I think using those parameters is very defensible because they're easier to resolve than OLRa (used in RMM) and VP200a is more closely linked w/ the mid-latitude circulation
 
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