[ncl-talk] Mysterious Map (Smaller Version)

[Barry Lynn]

Hi Adam:

Yes, it is convoluted.  Thank you for wading into it.

I agree that is probably what is happening.  I've tested it before.  I
thought that by using a raster plot it would solve the problem.

A couple of key points.  I thought that I am not doing any contouring at
all.  I am simply plotting points using "markid" as I needed to show points
with lightning as much larger than the underlying grid domain.  Perhaps the
key, then, is  to turn off contouring and shading in this resource?   I
don't want to plot a false point.

Barry

On Fri, Nov 20, 2020 at 2:03 AM Adam Phillips <asphilli at ucar.edu> wrote:

> Hi Barry,
> I am having trouble following your graphing section, but I can tell you
> that NCL (occasionally?) does not like it when a contour color field all
> falls in one color bin. You can see if that is the issue by randomly
> setting a point to a value of a different labelbar color bin. (So if all
> your values are between 1 and 3, set a single point to 10 and see what
> happens.) If that "fixes" things, then the before mentioned issue is the
> problem. I have gotten around this by setting a grid point just off the
> frame to a different color bin, but you may have to experiment.
> Sorry I cannot be of more help.
> Adam
>
> On Mon, Nov 16, 2020 at 9:30 PM Barry Lynn via ncl-talk <
> ncl-talk at mailman.ucar.edu> wrote:
>
>> Due to size issues, my message was held up by the moderator.
>>
>> Here is a smaller version.
>>
>> I have never been able to figure this out.  I use cnRaster to make my
>> lightning overlay.
>>
>> Yet, occasionally if the mapped values are the same value, I get a
>> complete "greenwash" on the map.
>>
>> It's as if NCL can't map a single value to a few locations.
>>
>> The greenwash is being made by the "res@" resources.
>>
>> Does someone have a possible solution in mind?
>>
>> Thanks.
>>
>> ---------- Forwarded message ---------
>> From: Barry Lynn <barry.h.lynn at gmail.com>
>> Date: Sat, Nov 14, 2020 at 6:29 PM
>> Subject: Fwd: A Mysterious Map
>> To: ncl-talk <ncl-talk at ucar.edu>
>>
>>
>> Here is a smaller sized version of what I just sent.
>>
>>
>>
>> Hi:
>>
>> I have never been able to figure this out.  I use cnRaster to make my
>> lightning overlay.
>>
>> Yet, occasionally if the mapped values are the same value, I get a
>> complete "greenwash" on the map.
>>
>> It's as if NCL can't map a single value to a few locations.
>>
>> The greenwash is being made by the "res@" resources.
>>
>> Does someone have a possible solution in mind?
>>
>> Thanks.
>>
>>
>>
>>
>> --
>> Guest Editor of Special Issue “Extreme Hydroclimatic Events and
>> Prediction”
>> LINK:
>>
>> https://www.mdpi.com/journal/water/special_issues/Extreme_Hydroclimatic_Events
>>
>> Barry H. Lynn, Ph.D
>> Senior Associate Scientist, Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>>
>>
>>
>> --
>> Guest Editor of Special Issue “Extreme Hydroclimatic Events and
>> Prediction”
>> LINK:
>>
>> https://www.mdpi.com/journal/water/special_issues/Extreme_Hydroclimatic_Events
>>
>> Barry H. Lynn, Ph.D
>> Senior Associate Scientist, Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>>
>>
>>
>> --
>> Guest Editor of Special Issue “Extreme Hydroclimatic Events and
>> Prediction”
>> LINK:
>>
>> https://www.mdpi.com/journal/water/special_issues/Extreme_Hydroclimatic_Events
>>
>> Barry H. Lynn, Ph.D
>> Senior Associate Scientist, Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>>
>>
>>
>> --
>> Guest Editor of Special Issue “Extreme Hydroclimatic Events and
>> Prediction”
>> LINK:
>>
>> https://www.mdpi.com/journal/water/special_issues/Extreme_Hydroclimatic_Events
>>
>> Barry H. Lynn, Ph.D
>> Senior Associate Scientist, Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>>
>> _______________________________________________
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>
>
>
> --
> Adam Phillips
> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>
> <http://www.cgd.ucar.edu/staff/asphilli>
>


-- 
Guest Editor of Special Issue “Extreme Hydroclimatic Events and Prediction”
LINK:
https://www.mdpi.com/journal/water/special_issues/Extreme_Hydroclimatic_Events

Barry H. Lynn, Ph.D
Senior Associate Scientist, Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
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