[Ncep.hmon] Thoughts on the HMON performance for Harvey

Weiguo Wang - NOAA Affiliate weiguo.wang at noaa.gov
Thu Aug 31 21:24:36 UTC 2017


Roughly, need 50% more time.

Phys also play an  important role. If we look at results for 09L from HMON
ensemble members, some members did good job,



On Thu, Aug 31, 2017 at 2:12 PM, Avichal Mehra - NOAA Federal <
avichal.mehra at noaa.gov> wrote:

> But we did make runs with 61 (?) levels during our retrospectives. How
> much more expensive were these as compared to the 43 level operational
> configuration?
>
> Thanks, Avichal.
>
> On Thu, Aug 31, 2017 at 1:36 PM, Weiguo Wang - NOAA Affiliate <
> weiguo.wang at noaa.gov> wrote:
>
>> Avichal
>>
>> No, we do not have members with large # levels.
>> Most of them are using different phys options.
>>
>> On Thu, Aug 31, 2017 at 1:12 PM, Avichal Mehra - NOAA Federal <
>> avichal.mehra at noaa.gov> wrote:
>>
>>> Weiguo,
>>>
>>> Do you have any ensemble members with larger number of vertical levels?
>>> How did they perform for Harvey?
>>>
>>> Thanks, Avichal.
>>>
>>>
>>>
>>> On Thu, Aug 31, 2017 at 1:05 PM, Hyun-Sook Kim - NOAA Affiliate <
>>> hyun.sook.kim at noaa.gov> wrote:
>>>
>>>> Avichal,
>>>>
>>>> It occurred to me that we have to increase the vertical layer for NMMB.
>>>> What I saw from today's Meg is that the HMON storm is too strong, too fast,
>>>> and quick dissipation. Such prediction can be remedied by not only ocean
>>>> coupling, but also increase in vertical levels.
>>>>
>>>> The HMON Gert forecast supports this suggestion, recall Weiguo's
>>>> post-stamp figures of the large scale flow comparisons against the analysis.
>>>>
>>>> As long as its running time wouldn't be a big issue, we should consider
>>>> one of upgrades for next year.
>>>>
>>>> -hsk
>>>> --
>>>>
>>>> Hyun-Sook Kim
>>>> NOAA Center for Weather & Climate Prediction
>>>> 5830 University Research Court
>>>> College Park, MD 20740
>>>> (o)301-683-3760 <(301)%20683-3760>
>>>>
>>>>
>>>
>>>
>>> --
>>>     Dr. Avichal Mehra
>>> Avichal.Mehra at noaa.gov
>>>     Lead Physical Scientist                      NOAA/NWS/NCEP/EMC
>>>     5830 University Research Court        Room 2104
>>>     College Park                                      Ph.   301-683-3746
>>> <(301)%20683-3746>
>>>     MD 20740                                          Fax: 301-683-3703
>>> <(301)%20683-3703>
>>>
>>> _______________________________________________
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>>>
>>
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>
>
> --
>     Dr. Avichal Mehra                               Avichal.Mehra at noaa.gov
>     Lead Physical Scientist                      NOAA/NWS/NCEP/EMC
>     5830 University Research Court        Room 2104
>     College Park                                      Ph.   301-683-3746
> <(301)%20683-3746>
>     MD 20740                                          Fax: 301-683-3703
> <(301)%20683-3703>
>
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