Re: Analysis of climate models

From	benj <benj.fake@gmail.com>
Newsgroups	sci.physics
Subject	Re: Analysis of climate models
Date	2018-11-05 14:51 -0500
Organization	Aioe.org NNTP Server
Message-ID	<prq70f$ca$4@gioia.aioe.org> (permalink)
References	<c94395fc-09b1-445a-b53c-1f3ad6412a74@googlegroups.com> <shin1fnq6k.fsf@lnx231.classe.cornell.edu> <f33628db-15c7-4573-8049-349722a47537@googlegroups.com> <prq419$1r1g$2@gioia.aioe.org> <prq476$1rg2$1@gioia.aioe.org>

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On 11/5/2018 2:04 PM, Sergio wrote:
> On 11/5/2018 1:00 PM, Sergio wrote:
>> On 11/5/2018 10:23 AM, Edward Prochak wrote:
>>> On Friday, November 2, 2018 at 5:08:06 PM UTC-4, Dan Riley wrote:
>>>> Edward Prochak <edprochak@gmail.com> writes:
>>>>> In response to sergio's comments and my own goal of trying to
>>>>> talk about physics in this group, I am starting this thread.
>>>>>
>>>>> So the goal is to investigate the limits of climate models.
>>>>
>>>> One place to look is this article:
>>>>
>>>> https://journals.ametsoc.org/doi/10.1175/BAMS-D-15-00135.1
>>>>
>>>> "The Art and Science of Climate Model Tuning"
>>>>
>>>>  From the intro:
>>>>
>>>> "While the fundamental physics of climate is generally well established,
>>>> submodels or parameterizations are approximate, either because of
>>>> numerical cost issues (limitations in grid resolution, acceleration of
>>>> radiative transfer computation) or, more fundamentally, because they try
>>>> to summarize complex and multiscale processes through an idealized and
>>>> approximate representation. Each parameterization relies on a set of
>>>> internal equations and often depends on parameters, the values of which
>>>> are often poorly constrained by observations. The process of estimating
>>>> these uncertain parameters in order to reduce the mismatch between
>>>> specific observations and model results is usually referred to as tuning
>>>> in the climate modeling community."
>>>>
>>>> The need for approximate parameterizations that aren't derived directly
>>>> from first principles is one of the chief sources of uncertainty in
>>>> modeling, so understanding why and how the models are tuned is one way
>>>> to approach the limits of models.
>>>>
>>>> -dan
>>>
>>> Cool. Thanks Dan. Just the kind of resource we need.
>>>
>>> Ed
>>>
>>
>> Great!   looks like a good paper, have not read it yet, and no paywall.
>>
> 
> there is an analysis (engineering tool) with modeling or in control
> systems  called "Sensitivity Analysis"
> where you have a blackbox  with many inputs and one or several outputs,
> and you very each input by itself say +_10% and monitor how much and
> which out put changes.
> 
I use that method here in these newsgroups all the time!

Thread

Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-10-31 10:22 -0700
  UsedCar salesman cite facts. Jeff-Relf.Me  @. - 2018-10-31 12:37 -0700
  Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-10-31 14:49 -0500
    Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-01 13:00 -0700
  Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-10-31 18:32 -0400
    Re: Analysis of climate models Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-01 06:32 +0100
      Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-01 02:06 -0400
        Re: Analysis of climate models Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-01 07:33 +0100
          Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-01 10:08 -0400
            Re: Analysis of climate models Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-01 15:33 +0100
            Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-01 13:22 -0700
              Re: Analysis of climate models Wally W. <ww84wa@aim.com> - 2018-11-14 00:28 -0500
                Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-15 16:47 -0800
          Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-01 10:16 -0500
    Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-01 13:16 -0700
    Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-01 16:02 -0700
      Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-02 20:19 -0500
      Re: Analysis of climate models James McGinn <jimmcginn9@gmail.com> - 2018-11-04 12:56 -0800
        Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-05 08:39 -0800
          Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-05 12:59 -0600
          Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-05 14:45 -0500
            Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-13 13:07 -0800
          Re: Analysis of climate models Claudius Denk <claudiusdenk@gmail.com> - 2018-11-05 12:34 -0800
            Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-13 13:09 -0800
              Re: Analysis of climate models Claudius Denk <claudiusdenk@gmail.com> - 2018-11-16 09:50 -0800
        Re: Analysis of climate models pnalsing@gmail.com - 2018-11-05 19:17 -0800
          Re: Analysis of climate models Claudius Denk <claudiusdenk@gmail.com> - 2018-11-06 07:16 -0800
  Re: Archimedes "Village Idiot" Plutonium flunked the Math Test of a lifetime-generation test moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-11-01 21:23 +0000
  Re: Analysis of climate models Boris Mohar <borism_void_@sympatico.ca> - 2018-11-02 05:21 -0400
    Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-05 08:04 -0800
  Re: Analysis of climate models Wally W. <ww84wa@aim.com> - 2018-11-02 08:31 -0400
    Re: Analysis of climate models Dan Riley <dan131riley@gmail.com> - 2018-11-02 17:15 -0400
      Re: Analysis of climate models Claudius Denk <claudiusdenk@gmail.com> - 2018-11-05 12:40 -0800
        Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-13 13:13 -0800
          Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-18 17:22 -0600
            Re: Analysis of climate models James McGinn <jimmcginn9@gmail.com> - 2018-11-18 17:48 -0800
            Re: Analysis of climate models Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-19 05:05 +0100
              Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-18 22:46 -0600
                Re: Analysis of climate models Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-19 06:59 +0100
                Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-20 07:42 -0800
                Re: Analysis of climate models James McGinn <jimmcginn9@gmail.com> - 2018-11-20 08:58 -0800
                Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-20 19:17 -0500
                Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-20 12:22 -0500
                Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-20 21:02 -0600
            Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-19 11:01 -0500
              Re: Analysis of climate models Claudius Denk <claudiusdenk@gmail.com> - 2018-11-19 12:58 -0800
                Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-20 08:10 -0800
                Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-20 12:04 -0500
                Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-20 22:02 -0600
      Re: Analysis of climate models Wally W. <ww84wa@aim.com> - 2018-11-19 07:00 -0500
        Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-20 08:00 -0800
          Re: Analysis of climate models Wally W. <ww84wa@aim.com> - 2018-11-20 21:28 -0500
            Re: Analysis of climate models James McGinn <jimmcginn9@gmail.com> - 2018-11-21 10:38 -0800
            Re: Analysis of climate models Wally W. <ww84wa@aim.com> - 2018-11-25 00:53 -0500
    Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-05 08:21 -0800
  Re: Analysis of climate models Dan Riley <dan131riley@gmail.com> - 2018-11-02 17:08 -0400
    Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-05 08:23 -0800
      Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-05 13:00 -0600
        Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-05 13:04 -0600
          Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-05 14:51 -0500
            Re: Analysis of climate models Sergio <invalid@invalid.com> - 2018-11-05 13:59 -0600
  Re: Analysis of climate models Wally W. <ww84wa@aim.com> - 2018-11-19 07:27 -0500
    Re: Analysis of climate models Edward Prochak <edprochak@gmail.com> - 2018-11-20 08:06 -0800
      Re: Analysis of climate models benj <benj.fake@gmail.com> - 2018-11-20 11:59 -0500

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