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Author Topic: Kalassak runs WRF  (Read 1788 times)

atomic7732

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Kalassak runs WRF
« on: August 19, 2016, 12:14:36 AM »
thread for graphics and stuff of interesting WRF runs i do

have some cute convective pops from 10W and some future invest behind it



i really wish i could run a global model at this resolution (15km)

atomic7732

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Re: Kalassak runs WRF
« Reply #1 on: February 23, 2017, 02:45:38 PM »
00z run from last night (feb 23) of 12F

this, like the above image, is just the inner 15km domain


atomic7732

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Re: Kalassak runs WRF
« Reply #2 on: March 03, 2017, 01:44:38 PM »
Enawo (then TDi 06) 03/00z run

20 km res grid


atomic7732

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Re: Kalassak runs WRF
« Reply #3 on: March 06, 2017, 12:53:45 AM »
a global run test


atomic7732

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Re: Kalassak runs WRF
« Reply #4 on: March 06, 2017, 02:02:56 AM »
notes to self: module_model_constants.F

change P2SI, reradius

try ocean planet

atomic7732

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Re: Kalassak runs WRF
« Reply #5 on: March 06, 2017, 04:36:07 PM »
so here's a global run


atomic7732

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Re: Kalassak runs WRF
« Reply #6 on: March 08, 2017, 12:48:45 AM »
a new run basically testing if it could form a cyclone in the mozambique channel like GFS did and how evident weak TCs are



going to restart this run (where it left off) tonight and run it for another week just to see what happens

atomic7732

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Re: Kalassak runs WRF
« Reply #7 on: March 08, 2017, 01:26:31 AM »
ayyy i figured out a way to get higher resolution

change the timestep

apparently i had a lot of leeway there so now i'm rerunning the above run at 87 km resolution (instead of 133 km) with 540s timestep (instead of 180s)

it seems to be running a little more than twice as fast, so i might be able to get down to 50 km or so and run a week-long simulation reasonably within 8-10 hours

atomic7732

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Re: Kalassak runs WRF
« Reply #8 on: March 08, 2017, 07:27:14 PM »
other than the part where i didn't actually run the model with the correct resolution so i had to re-run it today and the fact that i messed up the output interval, i'd say it was a success



there's a grand total of 3 TCs in the southwest indian in 7 days now lmao
"Fernando" at initialization
"Gabekile" in the Mozambique Channel (peaks at 992 at end of run)
"Harold" northeast of Madagascar (peaks at 1003 at end of run)

and the weak TCs (Fernando and Harold) show up very obviously as cyclones, so that's really good





"Gabekile" landfalls in Mozambique, peaks at 981
"Harold" passes near the Mascarenes and peaks at 984
"Cook" forms in the South Pacific near Vanuatu
a tropical depression exists briefly near French Polynesia
a tropical low seems to be developing at the end of the run near Western Australia
« Last Edit: March 09, 2017, 06:07:28 PM by atomic7732 »

atomic7732

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Re: Kalassak runs WRF
« Reply #9 on: March 11, 2017, 01:24:11 AM »
i got a script working that finds the lowest pressure within a region and tracks its movement for a given WRF run
it also finds the highest winds in the search region as well

Harold track from the above run ^



Cook



Gabekile coming soon, the current algorithm doesn't work well near land with high elevation
fixed, script now calculates mean sea level pressure :)



(it dissipated during the run, so that's why there's a tropical depression jumping around, there is no real system, so the script jumps everywhere)

Code: [Select]
Fernando
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Harold
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AA,00,2017030100,,,35.0649375916S,70.5194854736E,62,980,TS
Cook
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AA,00,2017030100,,,15.5844192505S,167.142852783E,19,1005,TS
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AA,00,2017030100,,,15.5844192505S,167.142852783E,20,1006,TS
AA,00,2017030100,,,15.5844192505S,167.142852783E,20,1004,TS
AA,00,2017030100,,,15.5844192505S,167.142852783E,22,1005,TS
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Gabekile
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AA,00,2017030100,,,14.8051986694S,35.4545440674E,20,1008,TS
AA,00,2017030100,,,14.0259780884S,36.2337646484E,19,1004,TS
AA,00,2017030100,,,10.9090957642S,33.8961029053E,16,1003,TS
AA,00,2017030100,,,12.4675369263S,34.6753234863E,11,1007,TS
Donna
AA,00,2017030100,,,17.1428604126S,159.350646973W,24,1003,TS
AA,00,2017030100,,,17.1428604126S,159.350646973W,26,1003,TS
AA,00,2017030100,,,17.9220809937S,160.129867554W,29,1005,TS
AA,00,2017030100,,,17.9220809937S,160.129867554W,31,1004,TS
AA,00,2017030100,,,17.9220809937S,160.129867554W,31,1001,TS
AA,00,2017030100,,,18.7013015747S,160.909088135W,32,1000,TS
AA,00,2017030100,,,18.7013015747S,160.909088135W,33,1002,TS
AA,00,2017030100,,,18.7013015747S,160.909088135W,33,1001,TS
AA,00,2017030100,,,19.4805221558S,160.909088135W,32,999,TS
AA,00,2017030100,,,19.4805221558S,160.909088135W,32,999,TS
AA,00,2017030100,,,19.4805221558S,160.909088135W,33,1001,TS
AA,00,2017030100,,,19.4805221558S,160.909088135W,33,1000,TS
AA,00,2017030100,,,19.4805221558S,160.909088135W,34,997,TS
AA,00,2017030100,,,20.2597427368S,160.909088135W,34,999,TS
AA,00,2017030100,,,20.2597427368S,160.909088135W,32,999,TS
AA,00,2017030100,,,20.2597427368S,160.909088135W,30,1000,TS
AA,00,2017030100,,,21.0389633179S,160.909088135W,30,997,TS
AA,00,2017030100,,,21.0389633179S,160.909088135W,31,998,TS
AA,00,2017030100,,,21.0389633179S,160.909088135W,34,999,TS
AA,00,2017030100,,,21.8181838989S,160.909088135W,34,1001,TS
AA,00,2017030100,,,23.376625061S,160.909088135W,34,999,TS
AA,00,2017030100,,,23.376625061S,160.909088135W,35,1000,TS
AA,00,2017030100,,,24.1558456421S,160.909088135W,36,1002,TS
AA,00,2017030100,,,24.9350662231S,161.688308716W,38,1002,TS
AA,00,2017030100,,,25.7142868042S,161.688308716W,36,1000,TS
AA,00,2017030100,,,27.2727279663S,161.688308716W,36,1001,TS
AA,00,2017030100,,,28.0519485474S,160.909088135W,40,1002,TS
AA,00,2017030100,,,29.6103897095S,159.350646973W,44,1003,TS
AA,00,2017030100,,,30.3896102905S,157.792205811W,43,1001,TS
AA,00,2017030100,,,31.1688308716S,157.012985229W,43,1001,TS
AA,00,2017030100,,,31.9480552673S,156.233764648W,44,1002,TS
AA,00,2017030100,,,32.7272758484S,156.233764648W,43,1000,TS
AA,00,2017030100,,,33.5064964294S,154.675323486W,45,998,TS
AA,00,2017030100,,,35.0649375916S,153.116882324W,44,998,TS
AA,00,2017030100,,,35.8441581726S,151.558441162W,46,997,TS
AA,00,2017030100,,,36.6233787537S,149.22076416W,49,995,TS
AA,00,2017030100,,,38.1818199158S,146.883117676W,51,991,TS
AA,00,2017030100,,,39.7402610779S,144.545440674W,51,988,TS
AA,00,2017030100,,,41.29870224S,142.207794189W,53,986,TS
AA,00,2017030100,,,42.8571434021S,139.870117188W,54,982,TS
AA,00,2017030100,,,44.4155845642S,137.532455444W,54,981,TS
AA,00,2017030100,,,46.7532463074S,135.194793701W,51,979,TS
AA,00,2017030100,,,48.3116912842S,132.857131958W,51,977,TS
AA,00,2017030100,,,49.8701324463S,129.740249634W,49,976,TS
AA,00,2017030100,,,52.2077941895S,127.402587891W,45,976,TS
AA,00,2017030100,,,53.7662353516S,124.285705566W,44,975,TS
AA,00,2017030100,,,55.3246765137S,121.948043823W,41,973,TS
AA,00,2017030100,,,56.8831176758S,118.831161499W,41,972,TS
AA,00,2017030100,,,58.4415588379S,115.714279175W,43,970,TS
AA,00,2017030100,,,59.2207794189S,112.597396851W,47,969,TS
AA,00,2017030100,,,60.7792205811S,109.480514526W,51,970,TS
AA,00,2017030100,,,63.8961029053S,109.480514526W,39,973,TS
AA,00,2017030100,,,64.6753234863S,108.701293945W,36,975,TS
AA,00,2017030100,,,65.4545440674S,107.142852783W,35,977,TS
AA,00,2017030100,,,67.7922058105S,111.038955688W,29,978,TS
AA,00,2017030100,,,64.6753234863S,114.935058594W,31,975,TS

updated tracks with the first week, so now there's Fernando. Gabekile and Harold's tracks are now complete too, and dar can have a random extratrop for fun
« Last Edit: March 13, 2017, 03:18:35 PM by atomic7732 »

Darvince

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Re: Kalassak runs WRF
« Reply #10 on: March 11, 2017, 05:33:44 AM »
dot good work friend

atomic7732

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Re: Kalassak runs WRF
« Reply #11 on: March 13, 2017, 05:44:00 PM »


http://pastebin.com/ht0i6vim

^ track file is too big for posts now

atomic7732

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Re: Kalassak runs WRF
« Reply #12 on: March 19, 2017, 02:09:20 PM »


this week in cyclones (April 20-27)

formed before:
TC Kundai (swio)
STC Kala (aus)
TC Liua (spac)
TC Mona (spac)

formed this week:
STC Cempaka (aus)
STS Merbok (wpac)
TS Lisebo (swio)
STS Michel (swio)

atomic7732

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Re: Kalassak runs WRF
« Reply #13 on: August 02, 2017, 08:44:09 PM »
remember this 463 232 67 km (pavala) 87 km (earth)


Darvince

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Re: Kalassak runs WRF
« Reply #14 on: August 03, 2017, 12:27:07 AM »
✔️

atomic7732

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Re: Kalassak runs WRF
« Reply #15 on: August 03, 2017, 12:46:53 AM »
new graphics script, except this time i wrote it



« Last Edit: August 03, 2017, 01:47:12 AM by atomic7732 »

atomic7732

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Re: Kalassak runs WRF
« Reply #16 on: August 03, 2017, 03:25:50 AM »
recompiled wrf with normal earth values and i'm going to rerun the above sim and compare them at 7 days

i'm probably going to have to do another run where i just change the radius of the planet and see if anything changes, cause i'm not sure if geogrid knows what to do with different sized planets (and it might be the only thing that knows how to deal with them)

atomic7732

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Re: Kalassak runs WRF
« Reply #17 on: August 04, 2017, 03:19:18 AM »
recompiled wrf with normal earth values and i'm going to rerun the above sim and compare them at 7 days

i'm probably going to have to do another run where i just change the radius of the planet and see if anything changes, cause i'm not sure if geogrid knows what to do with different sized planets (and it might be the only thing that knows how to deal with them)

here's a comparison of the 168hr output from the normal earth vs the earth with pavala characteristics simulations



they're surprisingly similar, but the things i changed seem to work...

here's some output from a point near/over visalia, CA of the planetary boundary layer height: (blue is earth, red is "pavala", the run is 7 days)



as you can see, the planetary boundary layer is higher on the planet with the lower gravity, which you would expect because the lower gravity causes the atmosphere to have a larger scale height

and i checked that changing the radius works (or does something at least) by running a sim with all earth characteristics except a pavala-sized radius

so now i figure... most of the differences in pavala won't be weather, but climate (as a result of lower insolation, different axial tilt, and different year length)

although after looking through all the model constants and determining what most of them are, there's one thing i didn't set to simulate the pavala-like earth, the angular velocity of the planet, which affects the coriolis parameter and thus might change the nature of the cyclonic (and anticyclonic) systems on the synoptic scale

another thing that will change the weather a lot is if the landmasses are different, so i just edited the input file i've been using to have no land anywhere, both to check the feasibility of adding pavala's land data and also to see how much different land masses affect the weather

so yeah, 7 day ocean planet sim coming in the morning

atomic7732

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Re: Kalassak runs WRF
« Reply #18 on: October 29, 2017, 02:18:08 AM »


gif flashes between 6 hour "satellite imagery" of an ocean planet and flattish pavala

unfortunately, the ocean planet has interpolated sea surface temperatures and the pavala does not, because they cause problems with high temperature gradients and cause weird weather and literally crash wrf

you can see some pavala coastline (most notably, ivinis)

so the status is this:

- we can't interpolate sst's so we're stuck with (at the moment) literal earth sst's and whatever weird quirks come with that (saharan sst's are insane), as well as earth land temperatures (though this should change as a few days pass in the run) - this is a general problem which definitely needs fixing, i'm not sure how to fix it yet though
- elevation doesn't work... but it does. i tried simulating it with full elevation and it caused a segfault (probably funky weather from the tibets or incomplete elevation, not entirely sure yet). the simulation you see above uses pavalan elevation but... 1/10th as pronounced. so elevation can definitely be changed, it's just that ours is either not smooth or complete enough.
- i need to make a pavalan coastline overlay

the most significant issue is definitely the sst issue... because we're currently forced to have terrible sst's where the "sahara" causes the ocean to be like 32C and makes hypercanes. that's obviously not great. idk how we can fix this though yet. an alternative that might work (temporarily) that i just thought of is replace all the temperatures with interpolated temperatures, cause we know that works, and since the soil temps of the land should come into equilibrium over a few days of simulating, it shouldn't really cause a problem. idk let's test it and then run either that sim or the one i just did overnight out to 7 days.

edit: no, that didn't work
« Last Edit: October 29, 2017, 02:33:26 AM by atomic7732 »

atomic7732

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Re: Kalassak runs WRF
« Reply #19 on: October 30, 2017, 01:35:06 AM »
7 day pavala (1/10th elevation), no sst interpolation run





some selected station data













the last one is a point on one of the ganuo islands where the "hypercane" passes over and has surprisingly little wind or rain (30 kts and 3 inches of rain is not much for a 970 hPa storm)

atomic7732

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Re: Kalassak runs WRF
« Reply #20 on: November 06, 2017, 03:09:59 AM »
3 week may run (1/10th pavala no interpolated sst's) (aka same as above but run out for longer)

total precipitation during the run in inches:



also some notes for myself

[08:05]   Kalassak   "My problem was stability issues when bringing the 3-D initial fields down to the surface. Along the Andes the model kept blowing up. I finally applied two passes of a 1-2-1 smoother to the dynamic fields and this seems to have fixed the stability problem as the model starts up"
[08:05]   Kalassak   hm so yeah it is likely a problem with just
[08:05]   Kalassak   changing the elevation
[08:05]   Kalassak   there is effectively no air where the land is removed and air is "clipping" with the land where it's added
[08:05]   Kalassak   causing stability problems
[08:15]   Kalassak   "if you alter terrain in the geo_em file, then the metgrid and real.exe steps will put the terrain-following coordinates in the right places based on the surface pressure and elevation, and will hydrostatically balance the initial state to your specified terrain.  There are issues with what to "fill in" the atmosphere with in the places that are no longer below ground, but if you're using...
[08:15]   Kalassak   ...NCEP grids as initial conditions then they do have information on pressure levels below ground (which are calculated from the US Standard Atmosphere)"

but this doesn't explain why the july and october runs don't work for even earth