[ncl-talk] joint-histogram

[Barry Lynn]

Hi Marston:

I made some histogram plots of WRF output data vs observations.  However, I
can't see your figure, so I am not sure what I did would be helpful to you.

Barry

On Mon, Oct 16, 2017 at 10:48 PM, Marston Johnston <shejo284 at gmail.com>
wrote:

> Hi Mary & Dennis,
>
>
>
> The table looks like a good place to start.
>
> I’m currently unaware of a cloud fraction that is calculated from optical
> depth and cloud top pressure.
>
> However, I do have data for all there, i.e., I have ctp, cf, and cot
> (optical depth).
>
>
>
> I’ll take a look at the table tomorrow.
>
>
>
> Thanks guys ☺
>
>
>
> Best,
>
> /M
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Marston S. Ward, PhD
>
> Department of Earth Sciences
>
> University of Gothenburg, Sweden
>
> Email: marston.johnston at gu.se
>
> SkypeID: marston.johnston
>
> Phone: +46-31-7864901 <+46%2031%20786%2049%2001>
>
> Only the fruitful thing is true!
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>
>
> *From: *Mary Haley <haley at ucar.edu>
> *Date: *Monday, 16 October 2017 at 21:31
> *To: *Marston Johnston <shejo284 at gmail.com>
> *Cc: *Dennis Shea <shea at ucar.edu>, "ncl-talk at ucar.edu" <ncl-talk at ucar.edu>
> *Subject: *Re: [ncl-talk] joint-histogram
>
>
>
> Marston,
>
>
>
> Take a look at this page:
>
>
>
> http://www.ncl.ucar.edu/Applications/table.shtml
>
>
> These are examples showing how to draw filed cells (square or triangle)
> based on some criteria.  I think table_4.ncl colors the cells by ranges of
> values.
>
>
>
> --Mary
>
>
>
>
>
> On Mon, Oct 16, 2017 at 1:03 PM, Marston Johnston <shejo284 at gmail.com>
> wrote:
>
> Hi Dennis,
>
>
>
> At first glance it would appear so, but example 6 calculates the
> percentage. In the ucar example:
>
> https://climatedataguide.ucar.edu/climate-data/isccp-
> international-satellite-cloud-climatology-project
>
>
>
> The ISCCP cloud fraction is calculated for each bin instead of density of
> the frequency of occurrence. So in example 6 there are 2 datasets that are
> used as input data, but in the figure in question seems to use 3.
>
>
>
> /M
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Marston S. Ward, PhD
>
> Department of Earth Sciences
>
> University of Gothenburg, Sweden
>
> Email: marston.johnston at gu.se
>
> SkypeID: marston.johnston
>
> Phone: +46-31-7864901 <+46%2031%20786%2049%2001>
>
> Only the fruitful thing is true!
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>
>
> *From: *ncl-talk <ncl-talk-bounces at ucar.edu> on behalf of Dennis Shea <
> shea at ucar.edu>
> *Date: *Monday, 16 October 2017 at 20:53
> *To: *Marston Ward <marston.johnston at gu.se>
> *Cc: *"ncl-talk at ucar.edu" <ncl-talk at ucar.edu>
> *Subject: *Re: [ncl-talk] joint-histogram
>
>
>
> I am not a graphics person.
>
> Looks like example 6
> https://www.ncl.ucar.edu/Applications/pdf.shtml
>
> ===
>
> Really, a contour plot with raster mode.
>
>
>
> On Mon, Oct 16, 2017 at 12:46 PM, Marston Ward <marston.johnston at gu.se>
> wrote:
>
> Hi guys!
>
>
>
> I’m trying to develop a NCL script to produce the attached figure, which
> is a joint-histogram, but a bit different from what pdfxy produces.
>
> I have a good idea of how this image is produced; but why reinvent the
> wheel? I don’t think that NCL has such a plot function, or am I mistaken?
>
> Does anyone have such a script – and would like to share?
>
> This is something I can definitely think of contributing to the NCL.
>
>
>
> Best,
>
> /M
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Marston S. Ward, PhD
>
> Department of Earth Sciences
>
> University of Gothenburg, Sweden
>
> Email: marston.johnston at gu.se
>
> SkypeID: marston.johnston
>
> Phone: +46-31-7864901 <+46%2031%20786%2049%2001>
>
> Only the fruitful thing is true!
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>
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-- 
Barry H. Lynn, Ph.D
Senior 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

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