Re: Polar Vector Plots

From: David Bailey <dbailey_at_nyahnyahspammersnyahnyah>
Date: Wed Jun 11 2014 - 14:30:48 MDT

I will work up a simpler script that demonstrates the issue.

Dave


On Wed, Jun 11, 2014 at 2:27 PM, David Brown <dbrown@ucar.edu> wrote:

> I agree that the last one looks better. Do you think still think there is
> a problem though? If so, we would need some scripts and data to reproduce
> it. But it's also true that getting the best results for these resources is
> a bit of a trial and error process.
> -dave
>
>
>
> On Wed, Jun 11, 2014 at 1:51 PM, David Bailey <dbailey@ucar.edu> wrote:
>
>> Note that I just reduced vcMinDistanceF to 0.01 and the results are much
>> better.
>>
>> Dave
>>
>>
>> On Wed, Jun 11, 2014 at 1:29 PM, David Bailey <dbailey@ucar.edu> wrote:
>>
>>> Hi Dave,
>>>
>>> I have attached some before and after plots. These are not exactly the
>>> same run, but I think it demonstrates the issue. The one with "-1" is the
>>> newer one.
>>>
>>> Dave
>>>
>>>
>>> On Wed, Jun 11, 2014 at 1:23 PM, David Brown <dbrown@ucar.edu> wrote:
>>>
>>>> Hi Dave,
>>>> The behavior of these resources should not have changed. If you are
>>>> getting different results now, can you send a sample code that we could use
>>>> to reproduce the issue? It would also help if you have a graphic of what
>>>> you used to get.
>>>> -dave
>>>>
>>>>
>>>>
>>>> On Wed, Jun 11, 2014 at 1:15 PM, David Bailey <dbailey@ucar.edu> wrote:
>>>>
>>>>> Hi there,
>>>>>
>>>>> I seem to revisit this in the ice diagnostics every year. I regularly
>>>>> generate polar projection vector/contour plots of the sea ice velocities. I
>>>>> have typically used the resource:
>>>>>
>>>>> res@vcMinDistanceF = 0.018
>>>>>
>>>>> but recently, this does not seem to be working as well for me. So I am
>>>>> considering subsampling my data as an alternative:
>>>>>
>>>>> uplot = uvel(::thin,::thin)
>>>>> vplot = vvel(::thin,::thin)
>>>>>
>>>>> where thin is 2 or 3. This doesn't really give me the desired result
>>>>> either. I wondered what other people have done in this sort of example. I
>>>>> also seem to be getting an interaction between vcMinDistanceF and
>>>>> vcRefMagnitudeF, where I am losing all vectors north and south of 60N/S.
>>>>>
>>>>> Dave
>>>>>
>>>>> --
>>>>>
>>>>> David A Bailey email:
>>>>> dbailey_at_ucar.edu
>>>>> National Center for Atmospheric Research phone: 303-497-1737
>>>>> PO Box 3000 fax :
>>>>> 303-497-1700
>>>>> Boulder, CO 80307-3000
>>>>> http://www.cgd.ucar.edu/staff/dbailey
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> List instructions, subscriber options, unsubscribe:
>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>>
>>> David A Bailey email:
>>> dbailey_at_ucar.edu
>>> National Center for Atmospheric Research phone: 303-497-1737
>>> PO Box 3000 fax :
>>> 303-497-1700
>>> Boulder, CO 80307-3000
>>> http://www.cgd.ucar.edu/staff/dbailey
>>>
>>
>>
>>
>> --
>>
>> David A Bailey email:
>> dbailey_at_ucar.edu
>> National Center for Atmospheric Research phone: 303-497-1737
>> PO Box 3000 fax :
>> 303-497-1700
>> Boulder, CO 80307-3000
>> http://www.cgd.ucar.edu/staff/dbailey
>>
>
>


--

David A Bailey email:
dbailey_at_ucar.edu
National Center for Atmospheric Research phone: 303-497-1737
PO Box 3000 fax :
303-497-1700
Boulder, CO 80307-3000
                   http://www.cgd.ucar.edu/staff/dbailey

Received on Wed Jun 11 08:31:18 2014

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