[THREDDS #GHS-781915]: questions from Argentina

On 9/7/2012 8:29 AM, Walter Maza wrote:
> New Client Reply: questions from Argentina
>
> Thank you, very much. Regards from Patagonia Argentina.
> Walter
>
>
>>> Good morning,Lansing Madry.
>>> A final question in relation to the siguinte link (obtained today):
>>>
>>> http://motherlode.ucar.edu:8080/thredds/dodsC/fmrc/NCEP/GFS/Global_onedeg/NCEP-GFS-Global_onedeg_best.ncd.htm
>>>
>>> the date and initial hour of the forecast is  09-06-2012 hour 06 z
>>> (start
>>> on 06-06-2012 at 06z) with validity at 702 hours of term [end at
>>> 10-05-2012 at 06z (702 hours of term)]?
>>>
>>> I think start 09-06-2012 06z end 10-05-2012 06z
>>>
>>> I check U-component_of_wind: Grid
>>> in time:[0:1:234]
>>>
>>> The rest I understood well
>>> Thank you again for your help, regards
>>>
>>> Walter
>>>
>>>
>>>
>>>>> Good morning,Lansing Madry.I am trying to get a time series of the
>>>>> forecast U-component of the surface level winds for to specific
>>> gridbox
>>>>> containing the location 45.78 S - 067.5 W, for the level of 1000 hpa.
>>> If
>>>>> this is not possible, it would be for surface. In another order, for
>>>>> example; if today, I try to obtain the data; which is the date  from
>>>>> start
>>>>> of the forecast and until term of time (end date of the forecast).
>>>>> Please sendo to me an example with other variable (prate)
>>>>> Thank you in adavance, sorry my english is bad. Regards.
>>>>> Walter
>>>>>
>>>>>
>>>>>>> Good morning, my name is Walter Maza. I am teacher in the National
>>>>>>> University of the Patagonia, in Argentina.
>>>>>>>
>>>>>>> My consultation is the following one:
>>>>>>>
>>>>>>>  From the page:
>>>>>>> http://motherlode.ucar.edu:8080/thredds/dodsC/fmrc/NCEP/GFS/Global_onedeg/NCEP-GFS-Global_onedeg_fmrc.ncd.html
>>>>>>>
>>>>>>> I try to obtain information ascii (best time series) for Comodoro
>>>>>>> Rivadavia (45.78 S - 067.5 W) with forecast to the major possible
>>>>> time
>>>>>>> of
>>>>>>> the variable U component of wind in 1000 hpa.
>>>>>>> For the date of today on September 04 (satart date)with
>>> information
>>>>> of
>>>>>>> 06z.
>>>>>>> since it should deposit the following information?
>>>>>>>
>>>>>>> U-component_of_wind_altitude_above_msl: Grid
>>>>>>> I think
>>>>>>> time:0:1:234
>>>>>>> altitude_above_msl:???
>>>>>>> lat: 135:1:135
>>>>>>> lon: 292:1:292
>>>>>>>
>>>>>>> Please if it can help me with this, thank you very much in
>>> advance,
>>>>>>> regards
>>>>>>>
>>>>>>>
>>>>>> Dear Walter,
>>>>>>
>>>>>> I have taken a look at your question, and I want to make sure I
>>>>> understand
>>>>>> what you're asking.  It seems to me that you are trying to get a
>>> time
>>>>>> series of the forecast U-component of the surface level winds for a
>>>>>> specific gridbox containing the location 45.78 S - 067.5 W, and you
>>>>> appear
>>>>>> to be asking which level, of the three available, is the surface
>>>>> level.
>>>>>> I looked at the three levels, and none are at the surface.  They
>>> are
>>>>> at
>>>>>> elevations above msl of:
>>>>>>
>>>>>> Dataset {
>>>>>>      Float64 altitude_above_msl[altitude_above_msl = 3];
>>>>>> }
>>>>> fmrc%2fNCEP%2fGFS%2fGlobal_onedeg%2fNCEP-GFS-Global_onedeg_fmrc%2encd;
>>>>>> ---------------------------------------------
>>>>>> altitude_above_msl[3]
>>>>>> 1829.0, 2743.0, 3658.0
>>>>>>
>>>>>> Also, I am having trouble understanding your suggestion of time
>>>>>> coordinates.  As near as I can tell, the time variable has 65 steps
>>> in
>>>>>> each of 87 runs, rather than a single time series of 235 steps.
>>>>>>
>>>>>> Could you confirm my interpretation or otherwise clarify what you
>>> are
>>>>>> looking for?
>>>>>>
>>>>>> Regards,
>>>>>>    Lansing Madry
>>>>>>    Unidata
>>>>>>    Boulder, CO
>>>>>>
>>>>>> Ticket Details
>>>>>> ===================
>>>>>> Ticket ID: GHS-781915
>>>>>> Department: Support THREDDS
>>>>>> Priority: Normal
>>>>>> Status: Open
>>>>>>
>>>>>>
>>>>>
>>>> Walter,
>>>>
>>>> I think you want to do the following:
>>>>
>>>> 1) Check the box next to "U-component_of_wind: Array of 32 bit Reals
>>> [run
>>>> = 0..86][time = 0..64][pressure = 0..25][lat = 0..180][lon = 0..359]"
>>> --
>>>> it is the third variable in the list.
>>>> 2) In the "run" box enter "0:1:0" -- or whichever run you want
>>>> 3) In the "time" box enter "0:1:64 -- to get all of the forecast
>>> timesteps
>>>> 4) In the "pressure" box enter "0:1:0" -- to get 100hPa level
>>>> 5) In the "lat" box enter "135:1:135" -- to get your latitude of
>>> interest
>>>> gridbox
>>>> 6) In the "lon" box enter "292:1:292" -- to get your longitude of
>>> interest
>>>> gridbox
>>>> 7) Click the "Get ASCII" button to see the data.
>>>>
>>>> You may want a different (or multiple) run instead of just the first
>>> one.
>>>> Hope this helps!
>>>>
>>>> -Lansing
>>>>
>>>>
>>>> Ticket Details
>>>> ===================
>>>> Ticket ID: GHS-781915
>>>> Department: Support THREDDS
>>>> Priority: Normal
>>>> Status: Open
>>>>
>>>>
>>>
>> Walter,
>>
>> I think I see a couple points of confusion.  First, you might notice that
>> you have provided two similar-looking, but critically different links.
>> One of them is a "best time series", the other a "forecast model run
>> collection".  Under the "best" time series (the most recent link you
>> provided), there is indeed a time with 235 steps.  However, this leads to
>> perhaps the second point of confusion.  The time described is "hours since
>> 2012-08-16T00:00:00Z", rather than the 09-06-2012 you are looking for.
>>
>> Cheers,
>>    Lansing
>>
>> Ticket Details
>> ===================
>> Ticket ID: GHS-781915
>> Department: Support THREDDS
>> Priority: Normal
>> Status: Open
>>
>>
>
>
>
> Ticket Details
> ===================
> Ticket ID: GHS-781915
> Department: Support THREDDS
> Priority: Normal
> Status: Open
> Link:  
> https://www.unidata.ucar.edu/esupport/staff/index.php?_m=tickets&_a=viewticket&ticketid=20532
No worries, glad to help!

-Lansing



Ticket Details
===================
Ticket ID: GHS-781915
Department: Support THREDDS
Priority: Normal
Status: Open