[gradsusr] Average wind and swell values NOAA wavewatch III full dataset.

kent balas kentbalas at gmail.com
Sat Apr 14 03:43:33 EDT 2012


I imagine I'd specify the lat long covering the area of interest?  What I
want to do is identical to the NOAA product viewer (
http://polar.ncep.noaa.gov/waves/viewer.shtml?) but over 10 years, instead
of 180 hrs.  Perhaps animating with a daily or weekly average values.


On Sat, Apr 14, 2012 at 5:32 PM, James T. Potemra <jimp at hawaii.edu> wrote:

>
> You want to get/plot a variable along an arbitrary coastline?  This is not
> going to be straightforward; the output is on a regular lat/lon grid.
>
> Jim
>
>
> On 4/13/12 9:18 PM, kent balas wrote:
>
> I'd be very interested Jim, thanks.
>
> What I ultimately want to do is specify any coastline in the world and see
> an averages of the various parameters contained within the NOAA dataset
> (swell direction, amplitude, wind direction ect.).
>
> On Sat, Apr 14, 2012 at 5:12 PM, James T. Potemra <jimp at hawaii.edu> wrote:
>
>>  Kent:
>>
>> I made a monthly mean climatology from the early WW3 output, based on
>> 1998-2007 output, if interested just let me know.
>>
>> Jim
>>
>>
>> On 4/13/12 8:51 PM, kent balas wrote:
>>
>> I'm currently downloading everything that sits in this directory
>> ftp://polar.ncep.noaa.gov/pub/history/waves/
>>
>> Its 96GB i think.
>>
>>  On Sat, Apr 14, 2012 at 4:33 PM, kent balas <kentbalas at gmail.com> wrote:
>>
>>> How much space do you think I'll need?
>>>
>>>
>>> On Sat, Apr 14, 2012 at 4:23 PM, Jeff Lake <admin at michiganwxsystem.com>wrote:
>>>
>>>>  How big of a hard drive do you have on your server ...
>>>> GRIB2 files 2x daily since 1999 .. OUCH
>>>>
>>>> -Jeff Lake
>>>> MichiganWxSystem.com
>>>> WeatherMichigan.net
>>>> TheWeatherCenter.net
>>>> GRLevelXStuff.com
>>>>
>>>>
>>>> On 4/14/2012 2:00 AM, kent balas wrote:
>>>>
>>>>  Hi Gradusers,
>>>>
>>>> I'm new to Grads and am not a computer scientist or Meteorologist (a
>>>> lowly Geologist) so pardon my ignorance.  I'd like to use the NOAA
>>>> wavewatch III dataset (ftp://polar.ncep.noaa.gov/pub/history/waves/)
>>>> in *.grb2 format and grads to get average wind and swell amplitude and
>>>> direction for any part of the globe.  I'm fairly sure this is possible as
>>>> the wavewatch III product viewer (
>>>> http://polar.ncep.noaa.gov/waves/viewer.shtml?) does it over the past
>>>> 180 hours.  I'd like to get the average values over the full dataset (1999
>>>> - present) and produce an animation of this if possible.  Can someone help
>>>> me with where to start?  I'm aware I'll probably need g2ctl, however my
>>>> programming knowledge is limited to some basic python so I'm having trouble
>>>> with getting started.  Apologies for the basic question.
>>>>
>>>> Kind Regards,
>>>>
>>>> Kent Balas
>>>>
>>>>
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>>>
>>
>>
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