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This is part of Issue NOAA-EMC#392 (NOAA-EMC#460)
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Fixes the doxygen warnings in CALHEL.f CALHEL2.f CALHEL3.f

Please review this subroutine. Thank you.
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kayeekayee authored Mar 29, 2022
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115 changes: 39 additions & 76 deletions sorc/ncep_post.fd/CALHEL.f
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!> @file
! . . .
!> SUBPROGRAM: CALHEL COMPUTES STORM RELATIVE HELICITY
!! PRGRMMR: BALDWIN ORG: W/NP2 DATE: 94-08-22
!!
!! ABSTRACT:
!! THIS ROUTINE COMPUTES ESTIMATED STORM MOTION AND
!! STORM-RELATIVE ENVIRONMENTAL HELICITY.
!! (DAVIES-JONES ET AL 1990) THE ALGORITHM PROCEEDS AS
!! FOLLOWS.
!!
!! THE STORM MOTION COMPUTATION NO LONGER EMPLOYS THE DAVIES AND
!! JOHNS (1993) METHOD WHICH DEFINED STORM MOTION AS 30 DEGREES TO
!! THE RIGHT OF THE 0-6 KM MEAN WIND AT 75% OF THE SPEED FOR MEAN
!! SPEEDS LESS THAN 15 M/S AND 20 DEGREES TO THE RIGHT FOR SPEEDS
!! GREATER THAN 15 M/S. INSTEAD, WE NOW USE THE DYNAMIC METHOD
!! (BUNKERS ET AL. 1998) WHICH HAS BEEN FOUND TO DO BETTER IN
!! CASES WITH 'NON-CLASSIC' HODOGRAPHS (SUCH AS NORTHWEST-FLOW
!! EVENTS) AND DO AS WELL OR BETTER THAN THE OLD METHOD IN MORE
!! CLASSIC SITUATIONS.
!!
!! PROGRAM HISTORY LOG:
!! 94-08-22 MICHAEL BALDWIN
!! 97-03-27 MICHAEL BALDWIN - SPEED UP CODE
!! 98-06-15 T BLACK - CONVERSION FROM 1-D TO 2-D
!! 00-01-04 JIM TUCCILLO - MPI VERSION
!! 00-01-10 G MANIKIN - CHANGED TO BUNKERS METHOD
!! 02-05-22 G MANIKIN - NOW ALLOW CHOICE OF COMPUTING
!! HELICITY OVER TWO DIFFERENT
!! (0-1 and 0-3 KM) DEPTHS
!! 03-03-25 G MANIKIN - MODIFIED CODE TO COMPUTE MEAN WINDS
!! USING ARITHMETIC AVERAGES INSTEAD OF
!! MASS WEIGHTING; DIFFERENCES ARE MINOR
!! BUT WANT TO BE CONSISTENT WITH THE
!! BUNKERS METHOD
!! 04-04-16 M PYLE - MINIMAL MODIFICATIONS, BUT PUT INTO
!! NMM WRFPOST CODE
!! 05=02-25 H CHUANG - ADD COMPUTATION FOR ARW A GRID
!! 05-07-07 BINBIN ZHOU - ADD RSM FOR A GRID
!! 19-10-30 Bo CUI - REMOVE "GOTO" STATEMENT
!!
!! USAGE: CALHEL(UST,VST,HELI)
!! INPUT ARGUMENT LIST:
!! DPTH - DEPTH IN METERS OVER WHICH HELICITY SHOULD BE COMPUTED;
!! ALLOWS ONE TO DISTINGUISH 0-3 KM AND 0-1 KM VALUES
!!
!! OUTPUT ARGUMENT LIST:
!! UST - ESTIMATED U COMPONENT (M/S) OF STORM MOTION.
!! VST - ESTIMATED V COMPONENT (M/S) OF STORM MOTION.
!! HELI - STORM-RELATIVE HELICITY (M**2/S**2)
!! CRA
!! USHR1 - U COMPONENT (M/S) OF 0-1 KM SHEAR
!! VSHR1 - V COMPONENT (M/S) OF 0-1 KM SHEAR
!! USHR6 - U COMPONENT (M/S) OF 0-0.5 to 5.5-6.0 KM SHEAR
!! VSHR6 - V COMPONENT (M/S) OF 0-0.5 to 5.5-6.0 KM SHEAR
!! CRA

!!
!! OUTPUT FILES:
!! NONE
!!
!! SUBPROGRAMS CALLED:
!! UTILITIES:
!!
!! LIBRARY:
!! COMMON - VRBLS
!! LOOPS
!! PHYS
!! EXTRA
!! MASKS
!! OPTIONS
!! INDX
!!
!! ATTRIBUTES:
!! LANGUAGE: FORTRAN 90
!! MACHINE : IBM SP
!!
!> @brief Subroutine that computes storm relative helicity.
!
!> This routine computes estimated storm motion and storm-relative
!> environmental helicity. (Davies-Jones et al 1990) the algorithm
!> processd as follows.
!>
!> The storm motion computation no longer employs the Davies and Johns (1993)
!> method which defined storm motion as 30 degress to the right of the 0-6 km
!> mean wind at 75% of the speed for mean speeds less than 15 m/s and 20 degrees
!> to the right for speeds greater than 15 m/s. Instead, we now use the dynamic
!> method (Bunkers et al. 1988) which has been found to do better in cases with
!> 'non-classic' hodographs (such as Northwest-flow events) and do as well or
!> better than the old method in more classic situations.
!>
!> @param[in] DPTH Depth in meters over whcih helicity should be computed; allows one to distinguish 0-3 km and 0-1 km values.
!> @param[out] UST Estimated U Component (m/s) Of Storm motion.
!> @param[out] VST Estimated V Component (m/s) Of Storm motion.
!> @param[out] HELI Storm-relative heliciry (m**2/s**2).
!> @param[out] USHR1 U Component (m/s) Of 0-1 km shear.
!> @param[out] VSHR1 V Component (m/s) Of 0-1 km shear.
!> @param[out] USHR6 U Component (m/s) Of 0-0.5 to 5.5-6.0 km shear.
!> @param[out] VSHR6 V Component (m/s) Of 0-0.5 to 5.5-6.0 km shear.
!>
!> ### Program history log:
!> Date | Programmer | Comments
!> -----|------------|---------
!> 1994-08-22 | Michael Baldwin | Initial
!> 1997-03-27 | Michael Baldwin | Speed up code
!> 1998-06-15 | T Black | Conversion from 1-D to 2-D
!> 2000-01-04 | Jim Tuccillo | MPI Version
!> 2000-01-10 | G Manikin | Changed to Bunkers method
!> 2002-05-22 | G Manikin | Now allow choice of computing helicity over two different (0-1 and 0-3 km) depths
!> 2003-03-25 | G Manikin | Modified code to compute mean winds using arithmetic averages instead of mass weighting; differences are minor but want to be consistent with the Bunkers method
!> 2004-04-16 | M Pyle | Minimal modifications but put into NMM WRFPOST code
!> 2005-02-25 | H Chuang | Add computation for ARW A grid
!> 2005-07-07 | Binbin Zhou | Add RSM for A grid
!> 2019-10-30 | Bo Cui | Remove "goto" statement
!>
!> @author Michael Baldwin W/NP2 @date 1994-08-22
SUBROUTINE CALHEL(DEPTH,UST,VST,HELI,USHR1,VSHR1,USHR6,VSHR6)

!
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122 changes: 42 additions & 80 deletions sorc/ncep_post.fd/CALHEL2.f
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Original file line number Diff line number Diff line change
@@ -1,84 +1,46 @@
!> @file
! . . .
!> SUBPROGRAM: CALHEL COMPUTES STORM RELATIVE HELICITY
!! PRGRMMR: BALDWIN ORG: W/NP2 DATE: 94-08-22
!!
!! ABSTRACT:
!! THIS ROUTINE COMPUTES ESTIMATED STORM MOTION AND
!! STORM-RELATIVE ENVIRONMENTAL HELICITY.
!! (DAVIES-JONES ET AL 1990) THE ALGORITHM PROCEEDS AS
!! FOLLOWS.
!!
!! THE STORM MOTION COMPUTATION NO LONGER EMPLOYS THE DAVIES AND
!! JOHNS (1993) METHOD WHICH DEFINED STORM MOTION AS 30 DEGREES TO
!! THE RIGHT OF THE 0-6 KM MEAN WIND AT 75% OF THE SPEED FOR MEAN
!! SPEEDS LESS THAN 15 M/S AND 20 DEGREES TO THE RIGHT FOR SPEEDS
!! GREATER THAN 15 M/S. INSTEAD, WE NOW USE THE DYNAMIC METHOD
!! (BUNKERS ET AL. 1998) WHICH HAS BEEN FOUND TO DO BETTER IN
!! CASES WITH 'NON-CLASSIC' HODOGRAPHS (SUCH AS NORTHWEST-FLOW
!! EVENTS) AND DO AS WELL OR BETTER THAN THE OLD METHOD IN MORE
!! CLASSIC SITUATIONS.
!!
!! PROGRAM HISTORY LOG:
!! 94-08-22 MICHAEL BALDWIN
!! 97-03-27 MICHAEL BALDWIN - SPEED UP CODE
!! 98-06-15 T BLACK - CONVERSION FROM 1-D TO 2-D
!! 00-01-04 JIM TUCCILLO - MPI VERSION
!! 00-01-10 G MANIKIN - CHANGED TO BUNKERS METHOD
!! 02-05-22 G MANIKIN - NOW ALLOW CHOICE OF COMPUTING
!! HELICITY OVER TWO DIFFERENT
!! (0-1 and 0-3 KM) DEPTHS
!! 03-03-25 G MANIKIN - MODIFIED CODE TO COMPUTE MEAN WINDS
!! USING ARITHMETIC AVERAGES INSTEAD OF
!! MASS WEIGHTING; DIFFERENCES ARE MINOR
!! BUT WANT TO BE CONSISTENT WITH THE
!! BUNKERS METHOD
!! 04-04-16 M PYLE - MINIMAL MODIFICATIONS, BUT PUT INTO
!! NMM WRFPOST CODE
!! 05=02-25 H CHUANG - ADD COMPUTATION FOR ARW A GRID
!! 05-07-07 BINBIN ZHOU - ADD RSM FOR A GRID
!! 19-09-03 J MENG - MODIFIED TO COMPUTE EFFECTIVE HELICITY
!! AND CRITICAL ANGLE
!!
!! USAGE: CALHEL(UST,VST,HELI)
!! INPUT ARGUMENT LIST:
!! LLOW - LOWER BOUND CAPE>=100 AND CINS>=-250
!! LUPP - UPPER BOUND CAPE< 100 OR CINS< -250
!! DPTH - DEPTH IN METERS OVER WHICH HELICITY SHOULD BE COMPUTED;
!! ALLOWS ONE TO DISTINGUISH 0-3 KM AND 0-1 KM VALUES
!!
!! OUTPUT ARGUMENT LIST:
!! UST - ESTIMATED U COMPONENT (M/S) OF STORM MOTION.
!! VST - ESTIMATED V COMPONENT (M/S) OF STORM MOTION.
!! HELI - STORM-RELATIVE HELICITY (M**2/S**2)
!! CANGLE - CRITICAL ANGLE
!! CRA
!! USHR1 - U COMPONENT (M/S) OF 0-1 KM SHEAR
!! VSHR1 - V COMPONENT (M/S) OF 0-1 KM SHEAR
!! USHR6 - U COMPONENT (M/S) OF 0-0.5 to 5.5-6.0 KM SHEAR
!! VSHR6 - V COMPONENT (M/S) OF 0-0.5 to 5.5-6.0 KM SHEAR
!! CRA

!!
!! OUTPUT FILES:
!! NONE
!!
!! SUBPROGRAMS CALLED:
!! UTILITIES:
!!
!! LIBRARY:
!! COMMON - VRBLS
!! LOOPS
!! PHYS
!! EXTRA
!! MASKS
!! OPTIONS
!! INDX
!!
!! ATTRIBUTES:
!! LANGUAGE: FORTRAN 90
!! MACHINE : IBM SP
!!
!> @brief Subroutine that computes storm relative helicity.
!
!> This routine computes estimated storm motion and storm-relative
!> environmental helicity. (Davies-Jones et al 1990) the algorithm
!> processd as follows.
!>
!> The storm motion computation no longer employs the Davies and Johns (1993)
!> method which defined storm motion as 30 degress to the right of the 0-6 km
!> mean wind at 75% of the speed for mean speeds less than 15 m/s and 20 degrees
!> to the right for speeds greater than 15 m/s. Instead, we now use the dynamic
!> method (Bunkers et al. 1988) which has been found to do better in cases with
!> 'non-classic' hodographs (such as Northwest-flow events) and do as well or
!> better than the old method in more classic situations.
!>
!> @param[in] LLOW Lower bound CAPE>=100 and CINS>=-250.
!> @param[in] LUPP Upper bound CAPE< 100 or CINS< -250; allows one to distinguish 0-3 km and 0-1 km values.
!> @param[in] DPTH Depth in meters over whcih helicity should be computed; allows one to distinguish 0-3 km and 0-1 km values.
!> @param[out] UST Estimated U Component (m/s) Of Storm motion.
!> @param[out] VST Estimated V Component (m/s) Of Storm motion.
!> @param[out] HELI Storm-relative heliciry (m**2/s**2).
!> @param[out] CANGLE Critical angle.
!> @param[out] USHR1 U Component (m/s) Of 0-1 km shear.
!> @param[out] VSHR1 V Component (m/s) Of 0-1 km shear.
!> @param[out] USHR6 U Component (m/s) Of 0-0.5 to 5.5-6.0 km shear.
!> @param[out] VSHR6 V Component (m/s) Of 0-0.5 to 5.5-6.0 km shear.
!>
!> ### Program history log:
!> Date | Programmer | Comments
!> -----|------------|---------
!> 1994-08-22 | Michael Baldwin | Initial
!> 1997-03-27 | Michael Baldwin | Speed up code
!> 1998-06-15 | T Black | Conversion from 1-D to 2-D
!> 2000-01-04 | Jim Tuccillo | MPI Version
!> 2000-01-10 | G Manikin | Changed to Bunkers method
!> 2002-05-22 | G Manikin | Now allow choice of computing helicity over two different (0-1 and 0-3 km) depths
!> 2003-03-25 | G Manikin | Modified code to compute mean winds using arithmetic averages instead of mass weighting; differences are minor but want to be consistent with the Bunkers method
!> 2004-04-16 | M Pyle | Minimal modifications but put into NMM WRFPOST code
!> 2005-02-25 | H Chuang | Add computation for ARW A grid
!> 2005-07-07 | Binbin Zhou | Add RSM for A grid
!> 2019-09-03 | J Meng | Modified to compute effective helicity and critical angle
!>
!> @author Michael Baldwin W/NP2 @date 1994-08-22
SUBROUTINE CALHEL2(LLOW,LUPP,DEPTH,UST,VST,HELI,CANGLE)

!
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120 changes: 42 additions & 78 deletions sorc/ncep_post.fd/CALHEL3.f
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Original file line number Diff line number Diff line change
@@ -1,82 +1,46 @@
!> @file
! . . .
!> SUBPROGRAM: CALHEL COMPUTES STORM RELATIVE HELICITY
!! PRGRMMR: BALDWIN ORG: W/NP2 DATE: 94-08-22
!!
!! ABSTRACT:
!! THIS ROUTINE COMPUTES ESTIMATED STORM MOTION AND
!! STORM-RELATIVE ENVIRONMENTAL HELICITY.
!! (DAVIES-JONES ET AL 1990) THE ALGORITHM PROCEEDS AS
!! FOLLOWS.
!!
!! THE STORM MOTION COMPUTATION NO LONGER EMPLOYS THE DAVIES AND
!! JOHNS (1993) METHOD WHICH DEFINED STORM MOTION AS 30 DEGREES TO
!! THE RIGHT OF THE 0-6 KM MEAN WIND AT 75% OF THE SPEED FOR MEAN
!! SPEEDS LESS THAN 15 M/S AND 20 DEGREES TO THE RIGHT FOR SPEEDS
!! GREATER THAN 15 M/S. INSTEAD, WE NOW USE THE DYNAMIC METHOD
!! (BUNKERS ET AL. 1998) WHICH HAS BEEN FOUND TO DO BETTER IN
!! CASES WITH 'NON-CLASSIC' HODOGRAPHS (SUCH AS NORTHWEST-FLOW
!! EVENTS) AND DO AS WELL OR BETTER THAN THE OLD METHOD IN MORE
!! CLASSIC SITUATIONS.
!!
!! PROGRAM HISTORY LOG:
!! 94-08-22 MICHAEL BALDWIN
!! 97-03-27 MICHAEL BALDWIN - SPEED UP CODE
!! 98-06-15 T BLACK - CONVERSION FROM 1-D TO 2-D
!! 00-01-04 JIM TUCCILLO - MPI VERSION
!! 00-01-10 G MANIKIN - CHANGED TO BUNKERS METHOD
!! 02-05-22 G MANIKIN - NOW ALLOW CHOICE OF COMPUTING
!! HELICITY OVER TWO DIFFERENT
!! (0-1 and 0-3 KM) DEPTHS
!! 03-03-25 G MANIKIN - MODIFIED CODE TO COMPUTE MEAN WINDS
!! USING ARITHMETIC AVERAGES INSTEAD OF
!! MASS WEIGHTING; DIFFERENCES ARE MINOR
!! BUT WANT TO BE CONSISTENT WITH THE
!! BUNKERS METHOD
!! 04-04-16 M PYLE - MINIMAL MODIFICATIONS, BUT PUT INTO
!! NMM WRFPOST CODE
!! 05=02-25 H CHUANG - ADD COMPUTATION FOR ARW A GRID
!! 05-07-07 BINBIN ZHOU - ADD RSM FOR A GRID
!! 19-09-03 J MENG - MODIFIED TO COMPUTE EFFECTIVE HELICITY
!! AND CRITICAL ANGLE
!! 21-03-15 E COLON - CALHEL2 MODIFIED TO COMPUTE EFFECTIVE
!! RATHER THAN FIXED LAYER HELICITY
!! USAGE: CALHEL3(UST,VST,HELI)
!! INPUT ARGUMENT LIST:
!! LLOW - LOWER BOUND CAPE>=100 AND CINS>=-250
!! LUPP - UPPER BOUND CAPE< 100 OR CINS< -250
!!
!! OUTPUT ARGUMENT LIST:
!! UST - ESTIMATED U COMPONENT (M/S) OF STORM MOTION.
!! VST - ESTIMATED V COMPONENT (M/S) OF STORM MOTION.
!! HELI - STORM-RELATIVE HELICITY (M**2/S**2)
!! CRA
!! USHR1 - U COMPONENT (M/S) OF 0-1 KM SHEAR
!! VSHR1 - V COMPONENT (M/S) OF 0-1 KM SHEAR
!! USHR6 - U COMPONENT (M/S) OF 0-0.5 to 5.5-6.0 KM SHEAR
!! VSHR6 - V COMPONENT (M/S) OF 0-0.5 to 5.5-6.0 KM SHEAR
!! CRA

!!
!! OUTPUT FILES:
!! NONE
!!
!! SUBPROGRAMS CALLED:
!! UTILITIES:
!!
!! LIBRARY:
!! COMMON - VRBLS
!! LOOPS
!! PHYS
!! EXTRA
!! MASKS
!! OPTIONS
!! INDX
!!
!! ATTRIBUTES:
!! LANGUAGE: FORTRAN 90
!! MACHINE : IBM SP
!!
!> @brief Subroutine that computes storm relative helicity.
!
!> This routine computes estimated storm motion and storm-relative
!> environmental helicity. (Davies-Jones et al 1990) the algorithm
!> processd as follows.
!>
!> The storm motion computation no longer employs the Davies and Johns (1993)
!> method which defined storm motion as 30 degress to the right of the 0-6 km
!> mean wind at 75% of the speed for mean speeds less than 15 m/s and 20 degrees
!> to the right for speeds greater than 15 m/s. Instead, we now use the dynamic
!> method (Bunkers et al. 1988) which has been found to do better in cases with
!> 'non-classic' hodographs (such as Northwest-flow events) and do as well or
!> better than the old method in more classic situations.
!>
!> @param[in] LLOW Lower bound CAPE>=100 and CINS>=-250.
!> @param[in] LUPP Upper bound CAPE< 100 or CINS< -250; allows one to distinguish 0-3 km and 0-1 km values.
!> @param[out] UST Estimated U Component (m/s) Of Storm motion.
!> @param[out] VST Estimated V Component (m/s) Of Storm motion.
!> @param[out] HELI Storm-relative heliciry (m**2/s**2).
!> @param[out] CANGLE Critical angle.
!> @param[out] USHR1 U Component (m/s) Of 0-1 km shear.
!> @param[out] VSHR1 V Component (m/s) Of 0-1 km shear.
!> @param[out] USHR6 U Component (m/s) Of 0-0.5 to 5.5-6.0 km shear.
!> @param[out] VSHR6 V Component (m/s) Of 0-0.5 to 5.5-6.0 km shear.
!>
!> ### Program history log:
!> Date | Programmer | Comments
!> -----|------------|---------
!> 1994-08-22 | Michael Baldwin | Initial
!> 1997-03-27 | Michael Baldwin | Speed up code
!> 1998-06-15 | T Black | Conversion from 1-D to 2-D
!> 2000-01-04 | Jim Tuccillo | MPI Version
!> 2000-01-10 | G Manikin | Changed to Bunkers method
!> 2002-05-22 | G Manikin | Now allow choice of computing helicity over two different (0-1 and 0-3 km) depths
!> 2003-03-25 | G Manikin | Modified code to compute mean winds using arithmetic averages instead of mass weighting; differences are minor but want to be consistent with the Bunkers method
!> 2004-04-16 | M Pyle | Minimal modifications but put into NMM WRFPOST code
!> 2005-02-25 | H Chuang | Add computation for ARW A grid
!> 2005-07-07 | Binbin Zhou | Add RSM for A grid
!> 2019-09-03 | J Meng | Modified to compute effective helicity and critical angle
!> 2021-03-15 | E Colon | CALHEL2 modified to compute effective rather than fixed layer helicity
!>
!> @author Michael Baldwin W/NP2 @date 1994-08-22
SUBROUTINE CALHEL3(LLOW,LUPP,UST,VST,HELI)

!
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