Dynamic Lightning (LPI): Registry/driver/lightning updates only #2258
Conversation
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I accidentally uploaded an abbreviated version of registry.sbm_light. I have uploaded the complete file and all should be well. |
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OK. We had some automatic checks that failed and will let you know what they are later. This could be special compilation options for example. |
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Hi Jimy:
I just compiled the code I sent you on my machine without a problem. There
is an extra variable, "l_obs," which I used to assimilate lightning.
Rather than remove it, I just left it, since I may want to use it in the
future.
It's a new option; I didn't put it under the lightning option schemes (I
don't remember why I did this but I think it was complicated merging it
with the other codes).
Barry
…On Mon, Nov 3, 2025 at 11:12 AM dudhia ***@***.***> wrote:
*dudhia* left a comment (wrf-model/WRF#2258)
<#2258 (comment)>
OK. We had some automatic checks that failed and will let you know what
they are later. This could be special compilation options for example.
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Fax: (972)-25662581
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| LOGICAL :: f_flux ! flag for computing averaged fluxes in cu_gd | ||
| REAL :: curr_secs, curr_secs2, curr_mins2 | ||
| REAL(8) :: curr_secs_r8, curr_secs2_r8 | ||
| REAL :: curr_secs, curr_secs2 |
There was a problem hiding this comment.
I don't think you should be making this change. The two lines in the code should be retained.
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||
| TYPE(WRFU_TimeInterval) :: tmpTimeInterval, tmpTimeInterval2 | ||
| REAL :: real_time | ||
| REAL(8) :: real_time_r8 |
There was a problem hiding this comment.
The same for this line, which should not be removed.
| curr_secs2 = real_time(tmpTimeInterval2) | ||
| curr_secs_r8 = real_time_r8(tmpTimeInterval) | ||
| curr_secs2_r8 = real_time_r8(tmpTimeInterval2) | ||
| curr_mins2 = REAL( curr_secs2_r8 / 60.0d0 ) |
There was a problem hiding this comment.
The same applies here.
| , config_flags%use_adaptive_time_step & | ||
| , curr_secs, curr_mins2 & | ||
| , curr_secs & | ||
| , psim , psih , gz1oz0 & |
There was a problem hiding this comment.
The same applies here.
| & ,P8W=p8w ,P=p_phy ,PI_PHY=pi_phy & | ||
| & ,RHO=grid%rho ,SPEC_ZONE=grid%spec_zone & | ||
| & ,SR=grid%sr ,TH=th_phy & | ||
| & ,ssat=grid%ssat, ssati=grid%ssati & |
| !====================== | ||
| #endif | ||
| & ,XLAND=grid%xland,SNOWH=grid%SNOW,XICE=grid%XICE & | ||
| & ,XLAND=grid%xland,SNOWH=grid%SNOW & !PMA |
| module_bl_mynnedmf_driver.o \ | ||
| module_bl_mynn_common.o \ | ||
| module_bl_mynn.o \ | ||
| module_bl_mynn_wrapper.o \ |
There was a problem hiding this comment.
These should not be changed in your PR.
| module_mp_etanew.o \ | ||
| module_mp_fer_hires.o \ | ||
| module_mp_thompson.o \ | ||
| module_mp_rcon.o \ |
There was a problem hiding this comment.
This should not be removed.
| module_mp_wdm5.o \ | ||
| module_mp_wdm6.o \ | ||
| module_mp_wdm7.o \ | ||
| module_mp_udm.o \ |
There was a problem hiding this comment.
This one too, should not be removed.
| TARGETDIR = ./ | ||
|
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||
| $(LIBTARGET) : | ||
| (cd .. && ./tools/manage_externals/checkout_externals --externals ./arch/Externals.cfg) |
There was a problem hiding this comment.
You definitely should not remove this line.
| else \ | ||
| echo No action required for MYNN-EDMF submodule ; \ | ||
| fi | ||
|
|
There was a problem hiding this comment.
You should not remove these lines either.
| ,cldfra, cldfra_old, exch_h, nsource & | ||
| ,qlsink, precr, preci, precs, precg & | ||
| ,xland,snowh,xice,itimestep & | ||
| ,xland,snowh,itimestep & |
There was a problem hiding this comment.
You should not change it here.
| #endif | ||
| ,qnwfa2d, qnifa2d, qnbca2d & ! for water/ice-friendly/black carbon aerosols | ||
| ,qnocbb2d, qnbcbb2d & ! for biomass burning aerosols | ||
| ,ssat,ssati & |
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You should not remove this line.
| USE module_state_description, ONLY : & | ||
| KESSLERSCHEME, LINSCHEME, SBU_YLINSCHEME, WSM3SCHEME, WSM5SCHEME & | ||
| ,WSM6SCHEME, ETAMPNEW, FER_MP_HIRES, THOMPSON, THOMPSONAERO, RCON_MP_SCHEME, THOMPSONGH, FAST_KHAIN_LYNN_SHPUND, MORR_TWO_MOMENT & | ||
| ,WSM6SCHEME, ETAMPNEW, FER_MP_HIRES, THOMPSON, THOMPSONAERO, THOMPSONGH, FAST_KHAIN_LYNN_SHPUND, MORR_TWO_MOMENT & |
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Should not change this line.
| ,GSFCGCESCHEME, WDM5SCHEME, WDM6SCHEME, NSSL_2MOM, MADWRF_MP & | ||
| ,FER_MP_HIRES_ADVECT & | ||
| ,WSM7SCHEME, WDM7SCHEME, UDMSCHEME & | ||
| ,WSM7SCHEME, WDM7SCHEME & |
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Should not change this line.
| USE module_mp_wsm7 | ||
| USE module_mp_etanew | ||
| USE module_mp_fer_hires | ||
| USE module_mp_rcon |
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| USE module_mp_wdm5 | ||
| USE module_mp_wdm6 | ||
| USE module_mp_wdm7 | ||
| USE module_mp_udm |
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| ! Optional | ||
| ! | ||
| REAL, OPTIONAL, DIMENSION( ims:ime , kms:kme, jms:jme ) , INTENT(OUT) :: refl_10cm,ssat,ssati | ||
| REAL, OPTIONAL, DIMENSION( ims:ime , kms:kme, jms:jme ) , INTENT(OUT) :: refl_10cm |
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should not change this line.
| dbz = refl_10cm, & | ||
| ssat3d = ssat, & | ||
| ssati = ssati, & | ||
| nssl_ssat_output = config_flags%nssl_ssat_output, & |
There was a problem hiding this comment.
should not remove these lines.
| ENDIF | ||
| ELSE | ||
| CALL wrf_error_fatal ( 'arguments not present for calling rcon' ) | ||
| ENDIF |
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| ELSE | ||
| CALL wrf_error_fatal ( 'arguments not present for calling udm') | ||
| ENDIF | ||
|
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should not remove these lines.
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@BarryHLynn The general errors you made is to overwrite the current version of the code with the version you worked on. Doing so, you removed many new updates we made in the model (which I pointed out). Those changes are not part of the modification you intend to make, and should be removed / corrected for this PR. |
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Hi:
I am not sure how this happened.
I downloaded the code a while back (but not too long ago) and made changes
only to solve_em.F by passing some variables to the microphysical driver,
and added three subroutine calls to the driver. I am not sure how to
address any of the other issues because I had trouble downloading a clean
version from the web again. I can't compile on a node that has access to
the web and the extra pull did not solve the problem with missing code.
I indicated which routines I added and which were modified. That is all
that has to be done.
Barry
…On Thu, Nov 20, 2025 at 2:12 PM weiwangncar ***@***.***> wrote:
*weiwangncar* left a comment (wrf-model/WRF#2258)
<#2258 (comment)>
@BarryHLynn <https://github.com/BarryHLynn> The general errors you made
is to overwrite the current version of the code with the version you worked
on. Doing so, you removed many new updates we made in the model (which I
pointed out). Those changes are not part of the modification you intend to
make, and should be removed / corrected for this PR.
—
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--
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <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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In github one thing not to do is copy modules from another directory into the one you downloaded. You should only clone an existing recent release version and edit that directly. |
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We are still waiting for a PR that fixes the reversion problems.
…On Thu, Nov 20, 2025 at 5:26 AM BarryHLynn ***@***.***> wrote:
*BarryHLynn* left a comment (wrf-model/WRF#2258)
<#2258 (comment)>
Hi:
I am not sure how this happened.
I downloaded the code a while back (but not too long ago) and made changes
only to solve_em.F by passing some variables to the microphysical driver,
and added three subroutine calls to the driver. I am not sure how to
address any of the other issues because I had trouble downloading a clean
version from the web again. I can't compile on a node that has access to
the web and the extra pull did not solve the problem with missing code.
I indicated which routines I added and which were modified. That is all
that has to be done.
Barry
On Thu, Nov 20, 2025 at 2:12 PM weiwangncar ***@***.***>
wrote:
> *weiwangncar* left a comment (wrf-model/WRF#2258)
> <#2258 (comment)>
>
> @BarryHLynn <https://github.com/BarryHLynn> The general errors you made
> is to overwrite the current version of the code with the version you
worked
> on. Doing so, you removed many new updates we made in the model (which I
> pointed out). Those changes are not part of the modification you intend
to
> make, and should be removed / corrected for this PR.
>
> —
> Reply to this email directly, view it on GitHub
> <#2258 (comment)>,
or
> unsubscribe
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> .
> You are receiving this because you were mentioned.Message ID:
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>
--
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <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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Hi:
I am unable to do that now because I was unable to compile the latest
version. When I downloaded the latest version (with the stipulation I was
compiling "offline") the compiler complained that some of the subroutines
were still not found.
So, I cannot modify a current version of WRF.
As I wrote, the changes are relatively small and confined to just
solve_em.F, microphysics_driver.F, one registry file, and three added
phys/subroutines. Those are all the changes.
Barry
…On Thu, Dec 11, 2025 at 9:07 PM dudhia ***@***.***> wrote:
*dudhia* left a comment (wrf-model/WRF#2258)
<#2258 (comment)>
We are still waiting for a PR that fixes the reversion problems.
On Thu, Nov 20, 2025 at 5:26 AM BarryHLynn ***@***.***> wrote:
> *BarryHLynn* left a comment (wrf-model/WRF#2258)
> <#2258 (comment)>
> Hi:
>
> I am not sure how this happened.
>
> I downloaded the code a while back (but not too long ago) and made
changes
> only to solve_em.F by passing some variables to the microphysical
driver,
> and added three subroutine calls to the driver. I am not sure how to
> address any of the other issues because I had trouble downloading a
clean
> version from the web again. I can't compile on a node that has access to
> the web and the extra pull did not solve the problem with missing code.
>
> I indicated which routines I added and which were modified. That is all
> that has to be done.
>
> Barry
>
> On Thu, Nov 20, 2025 at 2:12 PM weiwangncar ***@***.***>
> wrote:
>
> > *weiwangncar* left a comment (wrf-model/WRF#2258)
> > <#2258 (comment)>
> >
> > @BarryHLynn <https://github.com/BarryHLynn> The general errors you
made
> > is to overwrite the current version of the code with the version you
> worked
> > on. Doing so, you removed many new updates we made in the model (which
I
> > pointed out). Those changes are not part of the modification you
intend
> to
> > make, and should be removed / corrected for this PR.
> >
> > —
> > Reply to this email directly, view it on GitHub
> > <#2258 (comment)>,
> or
> > unsubscribe
> > <
>
https://github.com/notifications/unsubscribe-auth/AKWLWRXKGQSCCFXYGZSPL4335WVZZAVCNFSM6AAAAACK5MMZMCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTKNJXGY4TONRZGA>
>
> > .
> > You are receiving this because you were mentioned.Message ID:
> > ***@***.***>
> >
>
>
> --
>
> Barry H. Lynn, Ph.D
> Senior Scientist, Lecturer,
> The Institute of Earth Sciences,
> The Hebrew University of Jerusalem,
> Givat Ram, Jerusalem 91904, Israel
> Tel: 972 547 231 170
> Fax: (972)-25662581
>
> Weather It Is, LTD
> Weather and Climate Focus
> https://weather-it-is.com <http://weather-it-is.com>
> Jerusalem, Israel
> Local: 02 930 9525
> Cell: 054 7 231 170
> Int-IS: x972 2 930 9525
>
> —
> Reply to this email directly, view it on GitHub
> <#2258 (comment)>,
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> You are receiving this because your review was requested.Message ID:
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--
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <http://weather-it-is.com>
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
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|
Use this command to clone the code. Then you should not need to access the other repos when compiling offline. |
|
Hi:
This is what I did before. Twice.
Barry
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <http://weather-it-is.com>
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
…On Thu, 11 Dec 2025 at 22:48 dudhia ***@***.***> wrote:
*dudhia* left a comment (wrf-model/WRF#2258)
<#2258 (comment)>
Use this command to clone the code. Then you should not need to access the
other repos when compiling offline.
git clone https://github.com/wrf-model/WRF.git --recurse-submodules
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@BarryHLynn I've changed the target branch to Regarding the issues, it may be easier to provide guidance if you are able to post logs of your configuration and build output. |
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Hi Anthony:
I didn't follow your comment. There were just a few changes to the code.
I do not have access to the internet while compiling. When I built the
code this way:
git clone https://github.com/wrf-model/WRF.git
git submodule update --init --recursive
It did not compile (missing files). In a previous version of WRF, I was
able to build it without access to the internet.
Barry
…On Sat, Dec 13, 2025 at 2:01 AM Anthony Islas ***@***.***> wrote:
*islas* left a comment (wrf-model/WRF#2258)
<#2258 (comment)>
@BarryHLynn <https://github.com/BarryHLynn> I've changed the target
branch to develop as we never pull into master directly. This should have
set at creation or at least been done at the very beginning of the pull
request - I apologize. I don't think it has changed any of the diffs, but
it may be best to double check to make sure the edits have remained true to
what you intend to pull in.
Regarding the issues, it may be easier to provide guidance if you are able
to post logs of your configuration and build output.
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You are receiving this because you were mentioned.Message ID:
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--
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <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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@BarryHLynn I've put a tar file of latest WRF code (WRF v4.7.1) on our server for you and it should contain all the files needed for compilation. Can you start from there? |
|
Yes, I am able to download it, thank you.
Barry
…On Mon, Dec 15, 2025 at 11:04 AM weiwangncar ***@***.***> wrote:
*weiwangncar* left a comment (wrf-model/WRF#2258)
<#2258 (comment)>
@BarryHLynn <https://github.com/BarryHLynn> I've put a tar file of latest
WRF code (WRF v4.7.1) on our server
<https://www2.mmm.ucar.edu/wrf/src/tmp/tmp.html> for you and it should
contain all the files needed for compilation. Can you start from there?
—
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You are receiving this because you were mentioned.Message ID:
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--
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <http://weather-it-is.com>
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
|
|
Hi:
I uploaded the new code. It is in
https://github.com/BarryHLynn/Dynamic_Lightning
My code assumes that QHAIL = 0s if not calculated. I pass QGRAUP and
QHAIL, just in case.
Barry
…On Mon, Dec 15, 2025 at 12:13 PM Barry Lynn ***@***.***> wrote:
Yes, I am able to download it, thank you.
Barry
On Mon, Dec 15, 2025 at 11:04 AM weiwangncar ***@***.***>
wrote:
> *weiwangncar* left a comment (wrf-model/WRF#2258)
> <#2258 (comment)>
>
> @BarryHLynn <https://github.com/BarryHLynn> I've put a tar file of
> latest WRF code (WRF v4.7.1) on our server
> <https://www2.mmm.ucar.edu/wrf/src/tmp/tmp.html> for you and it should
> contain all the files needed for compilation. Can you start from there?
>
> —
> Reply to this email directly, view it on GitHub
> <#2258 (comment)>, or
> unsubscribe
> <https://github.com/notifications/unsubscribe-auth/AKWLWRXDUCOND765EIOGJBL4BZ2SPAVCNFSM6AAAAACK5MMZMCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTMNJUGUZDKMBVGI>
> .
> You are receiving this because you were mentioned.Message ID:
> ***@***.***>
>
--
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <http://weather-it-is.com>
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
--
Barry H. Lynn, Ph.D
Senior Scientist, Lecturer,
The Institute of Earth Sciences,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581
Weather It Is, LTD
Weather and Climate Focus
https://weather-it-is.com <http://weather-it-is.com>
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
|
|
@BarryHLynn I've created a new PR (#2276) based on your github code. Please check to see the changes are correct. Please also help edit the PR message. In the message you should state what the new scheme can do, and how the option is activated, etc. If there is publication, add the reference. |
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Hellow: I am unable to save my comments. Here they are again: To run the Dynamic Lightning Scheme add these parameters to the physics section of namelist.input dyn_lightning_option = 1, 1, 1, These are charging coefficients are set for One could also modify, j_pos, j_neg, and j_neu, which are threshold values for the breakdown field that control what magnitude of "electric potential energy" must build up to produce an event for each (see Registry/registry.dyn_light). But, this is not recommended as a first step. The original paper is: Lynn, H. B., Y. Yair, C. Price, G. Kelman, and A. J. Clark, 2012: Predicting cloud-to-ground and intracloud lightning in weather forecast models. Wea. Forecasting, 27, 1470–1488. https://doi.org/10.1175/WAF-D-11-00144.1. Additional papers were published since then. One can also reference this paper: Stefano Federico, Rosa Claudia Torcasio, Jana Popova, Zbyněk Sokol, Lukáš Pop, Martina Lagasio, Barry H. Lynn, Silvia Puca, Stefano Dietrich, |
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I should say: I was unable to save my comments... They are now saved. Thank you for your efforts to bring this scheme to the benefit of the modeling community (and public). |
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@BarryHLynn Please see the questions posted in PR-2276. |
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I believe I answered you in the email. |
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Superseded by #2276 |
4 participants
To add the Dynamic Lightning Scheme to the public version of WRF
New Feature
Lightning-Forecast Lightning Dynamic Lightning Scheme Cloud-to-ground-Lightning, Intracloud Lightning. (LPI code also updated to calculate 3d and 2d LPI)
Barry.H.Lynn@gmail.com; Barry.Lynn@Weather-It-Is.com (Weather It Is, LTD and Hebrew University of Jerusalem)
DESCRIPTION OF CHANGES:
Registry/registry.dyn_light
dyn_em/solve_em.F
phys/Makefile
phys/module_calc_lpi_new.F
phys/module_ltng_pe.F
phys/module_ltng_strokes.F
phys/module_microphysics_driver.F
Just added/modified these routines (based on already published work going back to 2010).
RELEASE NOTE: Include a stand-alone message suitable for the inclusion in the minor and annual releases. A publication citation is appropriate. This is the Dynamic Lightning Scheme based originally on this paper.
Lynn, B. H., 2017: The Usefulness and Economic Value of Total Lightning Forecasts Made with a Dynamic Lightning Scheme Coupled with Lightning Data Assimilation. Wea. Forecasting, 32, 645–663, https://doi.org/10.1175/WAF-D-16-0031.1.