Add ECMWF non-stationary gravity wave scheme option

[BoYang-NOAA]

Add ECMWF Non-stationary gravity wave scheme in UGWDV1 gravity wave suite. If do_ngw_ec is set to true, use the ECMWF NGWD scheme. Conversely, if do_ngw_ec is false, use the original UGWDv1 NGWD scheme. do_ngw_ec is set to false by default.

[mdtoyNOAA]

This is a good addition to the UGWP suite.

[yangfanglin]

Please add a doc section in ecmwf_ngw_emc to acknowledge that: This non-stationary GWD module was obtained by Fanglin Yang from ECMWF, with permission for operational use at NCEP. We would like to thank Andy Brown, Michael Sleigh, Peter Bechtold, and Nils Wedi at ECMWF for their support in porting this code to the UFS.

[yangfanglin]

@BoYang-NOAA Please also add relevant references in the doc section. Please refer to the header of the source code pasted below. Please describe briefly major changes we made for UFS installation.

!**** GWDRAG_WMS MASTER ROUTINE FOR CUMULUS MASSFLUX-SCHEME

! Original Fortran Code by J. SCINOCCIA
! Rewritten in IFS format by A. ORR E.C.M.W.F. August 2008

! PURPOSE
! -------

! THIS ROUTINE COMPUTES NON-OROGRAPHIC GRAVITY WAVE DRAG
! AFTER SCINOCCA (2003) AND Mc LANDRESS AND SCINOCCIA (JAS 2005)
! HYDROSTATIC NON-ROTATIONAL SIMPLIFIED VERSION OF THE
! WARNER AND MCINTYRE (1996) NON-OROGRAPHIC GRAVITY WAVE PARAMETERIZATION
! CONSTANTS HAVE BEEN OPTIMIZED FOLLOWING M. ERN ET AL. (ATMOS. CHEM. PHYS. 2006)

! REFERENCE: Orr, A., P. Bechtold, J. Scinoccia, M. Ern, M. Janiskova, 2010:
! Improved middle atmosphere climate and analysis in the ECMWF forecasting system
! through a non-orographic gravity wave parametrization. J. Climate., 23, 5905-5926.

! LAUNCH SPECTRUM - GENERALIZED DESAUBIES
! INCLUDES A CRITICAL-LEVEL CORRECTION THAT PREVENTS THE
! MOMEMTUM DEPOSITION IN EACH AZIMUTH FROM DRIVING THE FLOW TO SPEEDS FASTER
! THAN THE PHASE SPEED OF THE WAVES, I.E. WHEN WAVES BREAK THEY DRAG THE MEAN
! FLOW TOWARDS THEIR PHASE SPEED - NOT PAST IT.

[BoYang-NOAA]

Sure. Will work on it.

…

On Mon, Apr 28, 2025 at 9:19 AM Fanglin Yang ***@***.***> wrote: *yangfanglin* left a comment (ufs-community/ccpp-physics#273) <#273 (comment)> @BoYang-NOAA <https://github.com/BoYang-NOAA> Please also add relevant references in the doc section — Reply to this email directly, view it on GitHub <#273 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARTOITIRHWM7HJ5CRRWVWHT23YTF7AVCNFSM6AAAAAB3T46O46VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDQMZVGIYTQNRTGM> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[grantfirl]

@BoYang-NOAA I'll approve this once I hear from @mzhangw about the Doxygen changes.

The requested changes have been made. There is no need to re-review.

[rhaesung]

@BoYang-NOAA There are a lot of commented-out lines of code. Could you please remove unnecessary ones?

[grantfirl]

Combined into #295. Keeping open until merged.