| 1 | ! %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 2 | ! Copyright (c) 2015, Regents of the University of Colorado |
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| 3 | ! All rights reserved. |
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| 4 | ! |
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| 5 | ! Redistribution and use in source and binary forms, with or without modification, are |
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| 6 | ! permitted provided that the following conditions are met: |
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| 7 | ! |
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| 8 | ! 1. Redistributions of source code must retain the above copyright notice, this list of |
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| 9 | ! conditions and the following disclaimer. |
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| 10 | ! |
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| 11 | ! 2. Redistributions in binary form must reproduce the above copyright notice, this list |
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| 12 | ! of conditions and the following disclaimer in the documentation and/or other |
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| 13 | ! materials provided with the distribution. |
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| 14 | ! |
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| 15 | ! 3. Neither the name of the copyright holder nor the names of its contributors may be |
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| 16 | ! used to endorse or promote products derived from this software without specific prior |
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| 17 | ! written permission. |
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| 18 | ! |
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| 19 | ! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY |
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| 20 | ! EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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| 21 | ! MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
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| 22 | ! THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 23 | ! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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| 24 | ! OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 25 | ! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 26 | ! LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 27 | ! OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | ! |
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| 29 | ! History: |
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| 30 | ! Jul 2007 - A. Bodas-Salcedo - Initial version |
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| 31 | ! Jul 2008 - A. Bodas-Salcedo - Added capability of producing outputs in standard grid |
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| 32 | ! Oct 2008 - J.-L. Dufresne - Bug fixed. Assignment of Npoints,Nlevels,Nhydro,Ncolumns |
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| 33 | ! in COSP_STATS |
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| 34 | ! Oct 2008 - H. Chepfer - Added PARASOL reflectance arguments |
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| 35 | ! Jun 2010 - T. Yokohata, T. Nishimura and K. Ogochi - Added NEC SXs optimisations |
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| 36 | ! Jan 2013 - G. Cesana - Added betaperp and temperature arguments |
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| 37 | ! - Added phase 3D/3Dtemperature/Map output variables in diag_lidar |
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| 38 | ! May 2015 - D. Swales - Modified for cosp2.0 |
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| 39 | ! %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 40 | MODULE MOD_COSP_STATS |
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| 41 | USE COSP_KINDS, ONLY: wp |
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| 42 | USE MOD_COSP_CONFIG, ONLY: R_UNDEF,R_GROUND |
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| 43 | IMPLICIT NONE |
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| 44 | CONTAINS |
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| 45 | |
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| 46 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 47 | !---------- SUBROUTINE COSP_CHANGE_VERTICAL_GRID ---------------- |
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| 48 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 49 | SUBROUTINE COSP_CHANGE_VERTICAL_GRID(Npoints,Ncolumns,Nlevels,zfull,zhalf,y,Nglevels,newgrid_bot,newgrid_top,r,log_units) |
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| 50 | implicit none |
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| 51 | ! Input arguments |
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| 52 | integer,intent(in) :: Npoints !# of grid points |
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| 53 | integer,intent(in) :: Nlevels !# of levels |
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| 54 | integer,intent(in) :: Ncolumns !# of columns |
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| 55 | real(wp),dimension(Npoints,Nlevels),intent(in) :: zfull ! Height at model levels [m] (Bottom of model layer) |
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| 56 | real(wp),dimension(Npoints,Nlevels),intent(in) :: zhalf ! Height at half model levels [m] (Bottom of model layer) |
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| 57 | real(wp),dimension(Npoints,Ncolumns,Nlevels),intent(in) :: y ! Variable to be changed to a different grid |
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| 58 | integer,intent(in) :: Nglevels !# levels in the new grid |
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| 59 | real(wp),dimension(Nglevels),intent(in) :: newgrid_bot ! Lower boundary of new levels [m] |
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| 60 | real(wp),dimension(Nglevels),intent(in) :: newgrid_top ! Upper boundary of new levels [m] |
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| 61 | logical,optional,intent(in) :: log_units ! log units, need to convert to linear units |
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| 62 | ! Output |
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| 63 | real(wp),dimension(Npoints,Ncolumns,Nglevels),intent(out) :: r ! Variable on new grid |
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| 64 | |
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| 65 | ! Local variables |
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| 66 | integer :: i,j,k |
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| 67 | logical :: lunits |
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| 68 | integer :: l |
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| 69 | real(wp) :: w ! Weight |
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| 70 | real(wp) :: dbb, dtb, dbt, dtt ! Distances between edges of both grids |
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| 71 | integer :: Nw ! Number of weights |
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| 72 | real(wp) :: wt ! Sum of weights |
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| 73 | real(wp),dimension(Nlevels) :: oldgrid_bot,oldgrid_top ! Lower and upper boundaries of model grid |
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| 74 | real(wp) :: yp ! Local copy of y at a particular point. |
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| 75 | ! This allows for change of units. |
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| 76 | |
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| 77 | lunits=.false. |
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| 78 | if (present(log_units)) lunits=log_units |
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| 79 | |
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| 80 | r = 0._wp |
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| 81 | |
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| 82 | DO i=1,Npoints |
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| 83 | ! Calculate tops and bottoms of new and old grids |
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| 84 | oldgrid_bot = zhalf(i,:) |
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| 85 | oldgrid_top(1:Nlevels-1) = oldgrid_bot(2:Nlevels) |
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| 86 | oldgrid_top(Nlevels) = zfull(i,Nlevels) + zfull(i,Nlevels) - zhalf(i,Nlevels) ! Top level symmetric |
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| 87 | l = 0 ! Index of level in the old grid |
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| 88 | ! Loop over levels in the new grid |
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| 89 | DO k = 1,Nglevels |
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| 90 | Nw = 0 ! Number of weigths |
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| 91 | wt = 0._wp ! Sum of weights |
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| 92 | ! Loop over levels in the old grid and accumulate total for weighted average |
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| 93 | DO |
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| 94 | l = l + 1 |
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| 95 | w = 0.0 ! Initialise weight to 0 |
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| 96 | ! Distances between edges of both grids |
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| 97 | dbb = oldgrid_bot(l) - newgrid_bot(k) |
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| 98 | dtb = oldgrid_top(l) - newgrid_bot(k) |
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| 99 | dbt = oldgrid_bot(l) - newgrid_top(k) |
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| 100 | dtt = oldgrid_top(l) - newgrid_top(k) |
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| 101 | if (dbt >= 0.0) exit ! Do next level in the new grid |
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| 102 | if (dtb > 0.0) then |
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| 103 | if (dbb <= 0.0) then |
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| 104 | if (dtt <= 0) then |
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| 105 | w = dtb |
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| 106 | else |
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| 107 | w = newgrid_top(k) - newgrid_bot(k) |
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| 108 | endif |
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| 109 | else |
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| 110 | if (dtt <= 0) then |
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| 111 | w = oldgrid_top(l) - oldgrid_bot(l) |
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| 112 | else |
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| 113 | w = -dbt |
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| 114 | endif |
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| 115 | endif |
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| 116 | ! If layers overlap (w/=0), then accumulate |
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| 117 | if (w /= 0.0) then |
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| 118 | Nw = Nw + 1 |
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| 119 | wt = wt + w |
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| 120 | DO j=1,Ncolumns |
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| 121 | if (lunits) then |
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| 122 | if (y(i,j,l) /= R_UNDEF) then |
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| 123 | yp = 10._wp**(y(i,j,l)/10._wp) |
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| 124 | else |
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| 125 | yp = 0._wp |
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| 126 | endif |
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| 127 | else |
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| 128 | yp = y(i,j,l) |
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| 129 | endif |
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| 130 | r(i,j,k) = r(i,j,k) + w*yp |
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| 131 | enddo |
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| 132 | endif |
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| 133 | endif |
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| 134 | enddo |
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| 135 | l = l - 2 |
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| 136 | if (l < 1) l = 0 |
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| 137 | ! Calculate average in new grid |
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| 138 | if (Nw > 0) then |
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| 139 | DO j=1,Ncolumns |
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| 140 | r(i,j,k) = r(i,j,k)/wt |
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| 141 | enddo |
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| 142 | endif |
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| 143 | enddo |
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| 144 | enddo |
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| 145 | |
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| 146 | ! Set points under surface to R_UNDEF, and change to dBZ if necessary |
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| 147 | DO k=1,Nglevels |
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| 148 | DO j=1,Ncolumns |
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| 149 | DO i=1,Npoints |
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| 150 | if (newgrid_top(k) > zhalf(i,1)) then ! Level above model bottom level |
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| 151 | if (lunits) then |
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| 152 | if (r(i,j,k) <= 0.0) then |
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| 153 | r(i,j,k) = R_UNDEF |
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| 154 | else |
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| 155 | r(i,j,k) = 10._wp*log10(r(i,j,k)) |
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| 156 | endif |
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| 157 | endif |
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| 158 | else ! Level below surface |
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| 159 | r(i,j,k) = R_GROUND |
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| 160 | endif |
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| 161 | enddo |
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| 162 | enddo |
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| 163 | enddo |
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| 164 | |
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| 165 | END SUBROUTINE COSP_CHANGE_VERTICAL_GRID |
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| 166 | |
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| 167 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 168 | !------------- SUBROUTINE COSP_LIDAR_ONLY_CLOUD ----------------- |
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| 169 | ! (c) 2008, Lawrence Livermore National Security Limited Liability Corporation. |
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| 170 | ! All rights reserved. |
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| 171 | !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 172 | SUBROUTINE COSP_LIDAR_ONLY_CLOUD(Npoints,Ncolumns,Nlevels,beta_tot, & |
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| 173 | beta_mol,Ze_tot,lidar_only_freq_cloud,tcc) |
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| 174 | ! Inputs |
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| 175 | integer,intent(in) :: & |
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| 176 | Npoints, & ! Number of horizontal gridpoints |
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| 177 | Ncolumns, & ! Number of subcolumns |
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| 178 | Nlevels ! Number of vertical layers |
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| 179 | real(wp),dimension(Npoints,Nlevels),intent(in) :: & |
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| 180 | beta_mol ! Molecular backscatter |
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| 181 | real(wp),dimension(Npoints,Ncolumns,Nlevels),intent(in) :: & |
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| 182 | beta_tot, & ! Total backscattered signal |
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| 183 | Ze_tot ! Radar reflectivity |
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| 184 | ! Outputs |
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| 185 | real(wp),dimension(Npoints,Nlevels),intent(out) :: & |
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| 186 | lidar_only_freq_cloud |
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| 187 | real(wp),dimension(Npoints),intent(out) ::& |
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| 188 | tcc |
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| 189 | |
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| 190 | ! local variables |
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| 191 | real(wp) :: sc_ratio |
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| 192 | real(wp),parameter :: & |
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| 193 | s_cld=5.0, & |
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| 194 | s_att=0.01 |
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| 195 | integer :: flag_sat,flag_cld,pr,i,j |
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| 196 | |
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| 197 | lidar_only_freq_cloud = 0._wp |
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| 198 | tcc = 0._wp |
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| 199 | DO pr=1,Npoints |
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| 200 | DO i=1,Ncolumns |
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| 201 | flag_sat = 0 |
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| 202 | flag_cld = 0 |
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| 203 | DO j=1,Nlevels |
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| 204 | sc_ratio = beta_tot(pr,i,j)/beta_mol(pr,j) |
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| 205 | if ((sc_ratio .le. s_att) .and. (flag_sat .eq. 0)) flag_sat = j |
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| 206 | if (Ze_tot(pr,i,j) .lt. -30.) then !radar can't detect cloud |
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| 207 | if ( (sc_ratio .gt. s_cld) .or. (flag_sat .eq. j) ) then !lidar sense cloud |
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| 208 | lidar_only_freq_cloud(pr,j)=lidar_only_freq_cloud(pr,j)+1. !top->surf |
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| 209 | flag_cld=1 |
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| 210 | endif |
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| 211 | else !radar sense cloud (z%Ze_tot(pr,i,j) .ge. -30.) |
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| 212 | flag_cld=1 |
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| 213 | endif |
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| 214 | enddo !levels |
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| 215 | if (flag_cld .eq. 1) tcc(pr)=tcc(pr)+1._wp |
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| 216 | enddo !columns |
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| 217 | enddo !points |
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| 218 | lidar_only_freq_cloud=lidar_only_freq_cloud/Ncolumns |
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| 219 | tcc=tcc/Ncolumns |
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| 220 | |
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| 221 | ! Unit conversion |
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| 222 | where(lidar_only_freq_cloud /= R_UNDEF) & |
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| 223 | lidar_only_freq_cloud = lidar_only_freq_cloud*100._wp |
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| 224 | where(tcc /= R_UNDEF) tcc = tcc*100._wp |
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| 225 | |
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| 226 | END SUBROUTINE COSP_LIDAR_ONLY_CLOUD |
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| 227 | |
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| 228 | ! ###################################################################################### |
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| 229 | ! FUNCTION hist1D |
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| 230 | ! ###################################################################################### |
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| 231 | function hist1d(Npoints,var,nbins,bins) |
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| 232 | ! Inputs |
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| 233 | integer,intent(in) :: & |
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| 234 | Npoints, & ! Number of points in input array |
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| 235 | Nbins ! Number of bins for sorting |
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| 236 | real(wp),intent(in),dimension(Npoints) :: & |
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| 237 | var ! Input variable to be sorted |
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| 238 | real(wp),intent(in),dimension(Nbins+1) :: & |
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| 239 | bins ! Histogram bins [lowest,binTops] |
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| 240 | ! Outputs |
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| 241 | real(wp),dimension(Nbins) :: & |
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| 242 | hist1d ! Output histogram |
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| 243 | ! Local variables |
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| 244 | integer :: ij |
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| 245 | |
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| 246 | DO ij=2,Nbins+1 |
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| 247 | hist1D(ij-1) = count(var .ge. bins(ij-1) .and. var .lt. bins(ij)) |
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| 248 | if (count(var .eq. R_GROUND) .ge. 1) hist1D(ij-1)=R_UNDEF |
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| 249 | enddo |
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| 250 | |
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| 251 | end function hist1D |
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| 252 | |
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| 253 | ! ###################################################################################### |
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| 254 | ! SUBROUTINE hist2D |
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| 255 | ! ###################################################################################### |
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| 256 | subroutine hist2D(var1,var2,npts,bin1,nbin1,bin2,nbin2,jointHist) |
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| 257 | implicit none |
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| 258 | |
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| 259 | ! INPUTS |
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| 260 | integer, intent(in) :: & |
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| 261 | npts, & ! Number of data points to be sorted |
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| 262 | nbin1, & ! Number of bins in histogram direction 1 |
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| 263 | nbin2 ! Number of bins in histogram direction 2 |
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| 264 | real(wp),intent(in),dimension(npts) :: & |
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| 265 | var1, & ! Variable 1 to be sorted into bins |
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| 266 | var2 ! variable 2 to be sorted into bins |
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| 267 | real(wp),intent(in),dimension(nbin1+1) :: & |
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| 268 | bin1 ! Histogram bin 1 boundaries |
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| 269 | real(wp),intent(in),dimension(nbin2+1) :: & |
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| 270 | bin2 ! Histogram bin 2 boundaries |
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| 271 | ! OUTPUTS |
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| 272 | real(wp),intent(out),dimension(nbin1,nbin2) :: & |
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| 273 | jointHist |
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| 274 | |
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| 275 | ! LOCAL VARIABLES |
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| 276 | integer :: ij,ik |
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| 277 | |
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| 278 | DO ij=2,nbin1+1 |
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| 279 | DO ik=2,nbin2+1 |
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| 280 | jointHist(ij-1,ik-1)=count(var1 .ge. bin1(ij-1) .and. var1 .lt. bin1(ij) .and. & |
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| 281 | var2 .ge. bin2(ik-1) .and. var2 .lt. bin2(ik)) |
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| 282 | enddo |
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| 283 | enddo |
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| 284 | end subroutine hist2D |
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| 285 | END MODULE MOD_COSP_STATS |
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