[Oracles-flight-planning] satellite loop

Fri Mar 11 19:00:19 PST 2016

Rob and Paquita:

I will have Pat generate a movie with the stability and surface wind on 
the IR movie.

L.

On 2/27/16 9:58 AM, Paquita Zuidema wrote:
> Hi Rob et al.,
>
> I like the idea of over plotting either the low-level - say 1000 hpa - 
> winds or ( or and) LTS also. For the latter I’d
> recommend 800-1000 hpa stability, as opposed to 700-1000 hpa. It’s not 
> conventional but Yemi and I have
> found a better correspondence to cloud fraction with it. If it all 
> looks too cluttered - could just try it on a week’s
> worth of imagery to assess - we can reevaluate.
>
> Rob: It would be good to get the perspectives on mid-level cloud 
> available from the different satellites, I’ll aim to
> do that.
>
> Catching up on the week’s emails….
>
> Paquita
>
>> On Feb 22, 2016, at 10:53 PM, Robert Wood <robwood2 at uw.edu 
>> <mailto:robwood2 at uw.edu>> wrote:
>>
>> Hi Lenny,
>>
>> I just had a chance to watch this all the way through. Quite 
>> fascinating. Thanks for putting it together. A few thoughts:
>>
>> Although 9/11 looks quite bad for getting nice Sc, there look to be 
>> some major clearings offshore that could be used for direct effect 
>> assessments right under the climatological aerosol plume.
>>
>> I'm quite impressed with how far north the cold air outbreaks seem to 
>> come on occasion. I wonder if it would be useful to overplot low 
>> level winds say as a different color arrow. Perhaps it would look too 
>> cluttered. Or maybe overlaying LTS contours would be interesting.
>>
>> It's also interesting that the cloud detrained from the deep 
>> convection (e.g. see 10/06) is not at the anvil level but is quite a 
>> bit lower (warmer). I've seen this in many other locations (e.g. E 
>> Pacific ITCZ) and often wondered why these clouds are detraining at 
>> mid-levels, if that is indeed what they are doing. Perhaps there's a 
>> strong stable layer there (top of the dry convective PBL that sets up 
>> when the Cbs are not operating?).
>>
>> You can also see waves emanating from the midlatitudes over the SE 
>> Atlantic that seem to reduce the Sc below (e.g. 10/17).
>>
>> Paquita: Are you planning to use the IR to get at the mid-level 
>> clouds? CALIPSO could also prove useful for that, although I wonder 
>> about thick aerosol layers being misdiagnosed as cloud, which would 
>> not happen in the IR. Another source of mid-level cloud info would be 
>> MISR. That actually might be the most reliable source of info. Just a 
>> thought. Is it just me, or do I see more mid-level cloud over the SE 
>> Atlantic in the later part of the season? It would be good to see if 
>> this is borne out in any statistics.
>>
>> Also, what about that tropical cyclone making landfall in Yemen 
>> (11/02)? Not without precedent, apparently 
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__upload.wikimedia.org_wikipedia_commons_2_23_Global-5Ftropical-5Fcyclone-5Ftracks-2Dedit2.jpg&d=CwMDaQ&c=y2w-uYmhgFWijp_IQN0DhA&r=IL9pwgrUzZgXnjpYpeEyY_uN_e8lywf4QUVHwEqOmZw&m=zQ0dNZDvitooFuaION17Q9JbjrG4k7hWHtty_Vjgoqo&s=T5QiYT9_L6lV-3tOLN0OIxWByaP1d9Oxz_XP4klX1ko&e=>, 
>> but not that common either.
>>
>> Regards
>>
>> Rob
>>
>>
>> On 2/21/2016 7:09 AM, Paquita Zuidema wrote:
>>> Lenny -
>>>
>>> wow, this is super useful and interesting. Thanks so much for putting it together. I viewed it
>>> online using Mac-safari and didn’t have trouble with that. I see the time spans Aug 25 to Nov. 4, it’s
>>> great to have the full 3 months as you say.
>>>
>>> A notable amount of great canonical flights days (say around 9/16) and some bad ones, at the
>>> beginning and around 9/11, when a strong mid-lat disturbance came through. Mid-level clouds
>>> coming off the continent can persist for a 1000 km offshore, e.g. to the dateline on 9/15, longer than
>>> I had thought, and can also develop offshore, e.g, 9/18. Overall at least 2/3rds of the days  come
>>> across as good flight days. These tend to have a persistent meteorology so thats great.
>>>
>>> We haven’t yet developed a climatology of the mid-level clouds at Miami, but I’ll take responsibility
>>> for that prior to our STM, as that would be helpful.
>>>
>>> Paquita
>>>
>>>> On Feb 19, 2016, at 2:30 PM, Leonhard Pfister<Leonhard.Pfister-1 at nasa.gov>  wrote:
>>>>
>>>> Correction, the link is:
>>>>
>>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__bocachica.arc.nasa.gov_ORACLES_sat_ir_IR-5F600mbar.mov&d=CwIGaQ&c=y2w-uYmhgFWijp_IQN0DhA&r=IL9pwgrUzZgXnjpYpeEyY_uN_e8lywf4QUVHwEqOmZw&m=hn71TFSqa402F6vCySG2bT2WQN5FpQ7w_IXEIAWBjMU&s=BdiyWD_CowjfKyBYGcGQR1O3z8xP2G7eEgAlV5YkBJ8&e=  
>>>> Sorry
>>>>
>>>> L.
>>>>
>>>> On 2/19/16 11:18 AM, Leonhard Pfister wrote:
>>>>> There is a satellite loop with overplotted meteorology for the entire fall period last year at
>>>>>
>>>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__bocachica.arc.nasa.gov_ORACLES_sat_ir_IR-5F600mbar.avi&d=CwIGaQ&c=y2w-uYmhgFWijp_IQN0DhA&r=IL9pwgrUzZgXnjpYpeEyY_uN_e8lywf4QUVHwEqOmZw&m=hn71TFSqa402F6vCySG2bT2WQN5FpQ7w_IXEIAWBjMU&s=RT2xXwTQpwIHpbxpgvsj6a8XEcbIwpZD9OHpJEgpvlU&e=  
>>>>> BIG BIG file, be patient.
>>>>>
>>>>> L.
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>>
>> -- 
>> ____________________________________________________________________________________
>>
>> Dr. Robert Wood
>> Atmospheric Sciences, Box 351640, University of Washington, Seattle, WA  98195, USA
>>
>> robwood at atmos.washington.edu   www.atmos.washington.edu/~robwood
>>
>> Tel: (206)-543-1203     Fax: (206)-685-9302
>>
>> ____________________________________________________________________________________
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>>
>
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