[gradsusr] Trying to plot values (grid? ascii?) of weasdsfc onto map.

[Christopher Gilroy]

I've never used station data, ha. If you think it's based on that setup,
I'll take a peak at playing with plotting that type of data. :)

I do have one last quick question that just came up, if you don't mind. :-/
We've been using the GFS pgrb2.0p25 files for the longest time and I'm
wondering, are those the highest-resolution model data (for the GFS in this
context) available? I recently came across these sflux files, which are
possibly the highest resolution available?

On Fri, Sep 25, 2015 at 10:34 AM, Stephen McMillan <
smcmillan at planalytics.com> wrote:

> I'm not able to view the first for whatever reason, but the one from
> second link does not appear to be from gxout grid.  Rather, it looks like
> it was done using the method ('draw string...') mentioned in my first
> response.  I would say they were based on station data, possibly used as
> the basis for the shaded contours, giving it a more irregular appearance.
>
> Bottom line...which do you want?  Regularly-spaced values based on a grid,
> or irregular values based on station locations?  It can be done either way.
>
> Stephen Mc
>
> On Fri, Sep 25, 2015 at 10:24 AM, Christopher Gilroy <
> chris.gilroy at gmail.com> wrote:
>
>> I hear you, I've done that too. Can you take a peak at either of the
>> images I linked to? With your knowledge of grads, would you say they are
>> plotting those snowfall numbers using gxout grid? It just seems so
>> different than what a gridded plot does, even with skipping.
>>
>> On Fri, Sep 25, 2015 at 10:21 AM, Stephen McMillan <
>> smcmillan at planalytics.com> wrote:
>>
>>> Yes, Chris, what you said makes sense.  If all you want to do is thin
>>> out the number displays from a grid, then use "skip" (and maskout too if
>>> you want to not plot the values over some area such as over water).  For
>>> example:
>>>
>>> 'd skip(maskout(t2m,landsfc-0.5),2)'
>>>
>>> displays every other grid value in both x- and y-direction over land
>>> areas only, where "t2m" was my temperature variable.
>>>
>>> Stephen
>>>
>>> On Fri, Sep 25, 2015 at 9:59 AM, Christopher Gilroy <
>>> chris.gilroy at gmail.com> wrote:
>>>
>>>> I do want it to draw snowfall amounts, but like in the two images, not
>>>> "griddy". If you look at,
>>>> http://blog.chron.com/weather/wp-content/blogs.dir/2579/files/2014/01/gfs_6hr_snow_acc_se_19.png
>>>> that doesn't appear to be drawing those numbers based on a grid at all.
>>>> They are all scattered about on the map with no real "grid" structure to
>>>> them. The only way I know how to "control" the frequency (perhaps
>>>> "stepping" might be a better word?) of the drawing of values would really
>>>> be to maskout coupled with re-gridding so it doesn't put a number on every
>>>> possible area that weasdsfc has a value for is. If that makes sense?
>>>>
>>>> On Fri, Sep 25, 2015 at 9:53 AM, Stephen McMillan <
>>>> smcmillan at planalytics.com> wrote:
>>>>
>>>>> Hello Chris,
>>>>>
>>>>> If you don't want to display all the grid values, then you can use
>>>>> 'draw string...' using the coordinates of whatever stations or locations
>>>>> you want displayed on top of the shaded contours.  See
>>>>> http://www.iges.org/grads/gadoc/gradcomddrawstring.html
>>>>>
>>>>> Stephen McMillan
>>>>>
>>>>> On Fri, Sep 25, 2015 at 8:55 AM, Christopher Gilroy <
>>>>> chris.gilroy at gmail.com> wrote:
>>>>>
>>>>>> I'm trying to plot something like this:
>>>>>> http://i60.tinypic.com/2v9voe0.jpg (WXBell has the same basic setup,
>>>>>> http://blog.chron.com/weather/wp-content/blogs.dir/2579/files/2014/01/gfs_6hr_snow_acc_se_19.png)
>>>>>> with the inch's plotting on-top of the shaded area but the only way I know
>>>>>> how to display "values" like that is with gxout grid, which then makes the
>>>>>> numbers plot in grids (obviously) and unless I'm missing something with
>>>>>> options I don't see a way to make it output as "loose" as theirs are,
>>>>>> instead of literally in a "grid" (square box) format.
>>>>>>
>>>>>> I'm currently simply doing:
>>>>>>
>>>>>> 'set gxout grid'
>>>>>> 'set gridln off'
>>>>>> 'set dignum 1'
>>>>>> 'set digsiz 0.05'
>>>>>> 'd re(maskout(weasdsfc, weasdsfc-3), 0.25)'
>>>>>>
>>>>>> Which, you can image it will output tons of numbers all over, making
>>>>>> it completely illegible. Any clue on how to do something like the above two
>>>>>> images?
>>>>>>
>>>>>> --
>>>>>> -Chris A. Gilroy
>>>>>>
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>>>>>>
>>>>>>
>>>>>
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>>>>>
>>>>
>>>>
>>>> --
>>>> -Chris A. Gilroy
>>>>
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>>>>
>>>
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>>
>>
>> --
>> -Chris A. Gilroy
>>
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-- 
-Chris A. Gilroy
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