Changeset 4314
- Timestamp:
- Nov 29, 2019 10:29:20 AM (5 years ago)
- Location:
- palm/trunk/SOURCE
- Files:
-
- 2 edited
-
init_grid.f90 (modified) (4 diffs)
-
plant_canopy_model_mod.f90 (modified) (9 diffs)
Legend:
- Unmodified
- Added
- Removed
-
palm/trunk/SOURCE/init_grid.f90
r4294 r4314 25 25 ! ----------------- 26 26 ! $Id$ 27 ! Set additional topography flag 4 to mark topography grid points emerged 28 ! from the filtering process. 29 ! 30 ! 4294 2019-11-13 18:34:16Z suehring 27 31 ! Bugfix, always set bit 5 and 6 of wall_flags, indicating terrain- and 28 32 ! building surfaces in all cases, in order to enable terrain-following output … … 1600 1604 num_hole_l = num_hole_l + 1 1601 1605 ! 1602 !-- Clear flag 0 and set special flag ( bit 3) to indicate1606 !-- Clear flag 0 and set special flag ( bit 4) to indicate 1603 1607 !-- that new topography point is a result of filtering process. 1604 1608 topo_3d(k,j,i) = IBCLR( topo_3d(k,j,i), 0 ) 1605 topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 3)1609 topo_3d(k,j,i) = IBSET( topo_3d(k,j,i), 4 ) 1606 1610 ! 1607 1611 !-- If filled grid point is occupied by a building, classify … … 2180 2184 CALL exchange_horiz_int( topo, nys, nyn, nxl, nxr, nzt, nbgp ) 2181 2185 ! 2182 !-- Set lateral boundary conditions for topography on all ghost layers 2186 !-- Set lateral boundary conditions for topography on all ghost layers 2183 2187 IF ( .NOT. bc_ns_cyc ) THEN 2184 2188 IF ( nys == 0 ) THEN … … 2601 2605 ENDDO 2602 2606 ! 2607 !-- Set flag 4, indicating new topography grid points due to filtering. 2608 DO i = nxl, nxr 2609 DO j = nys, nyn 2610 DO k = nzb, nzt+1 2611 IF ( BTEST( topo(k,j,i), 4 ) ) & 2612 wall_flags_0(k,j,i) = IBSET( wall_flags_0(k,j,i), 4 ) 2613 ENDDO 2614 ENDDO 2615 ENDDO 2616 ! 2603 2617 !-- Exchange ghost points for wall flags 2604 2618 CALL exchange_horiz_int( wall_flags_0, nys, nyn, nxl, nxr, nzt, nbgp ) -
palm/trunk/SOURCE/plant_canopy_model_mod.f90
r4309 r4314 27 27 ! ----------------- 28 28 ! $Id$ 29 ! - Bugfix, plant canopy was still considered at building edges on for the u- 30 ! and v-component. 31 ! - Relax restriction of LAD on building tops. LAD is only omitted at 32 ! locations where building grid points emerged artificially by the 33 ! topography filtering. 34 ! 35 ! 4309 2019-11-26 18:49:59Z suehring 29 36 ! Typo 30 37 ! … … 114 121 USE indices, & 115 122 ONLY: nbgp, nxl, nxlg, nxlu, nxr, nxrg, nyn, nyng, nys, nysg, nysv, & 116 nz, nzb, nzt, topo_top_ind 123 nz, nzb, nzt, topo_top_ind, wall_flags_0 117 124 118 125 USE kinds … … 938 945 ONLY: message_string, ocean_mode 939 946 940 USE indices, &941 ONLY: wall_flags_0942 943 947 USE netcdf_data_input_mod, & 944 948 ONLY: leaf_area_density_f … … 1108 1112 ! 1109 1113 !-- Check if resolved vegetation is mapped onto buildings. 1110 !-- Even if the user defines LAD only for non-building covered 1111 !-- grid points, the filter process of topography may cause 1112 !-- that LAD overlaps with buildings. This case, an 1113 !-- informative message is given and the LAD field is set to 1114 !-- zero at these 1114 !-- In general, this is allowed and also meaningful, e.g. 1115 !-- when trees carry across roofs. However, due to the 1116 !-- topography filtering, new building grid points can emerge 1117 !-- at location where also plant canopy is defined. As a 1118 !-- result, plant canopy is mapped on top of roofs, with 1119 !-- siginficant impact on the downstream flow field and the 1120 !-- nearby surface radiation. In order to avoid that 1121 !-- plant canopy is mistakenly mapped onto building roofs, 1122 !-- check for building grid points (bit 6) that emerge from 1123 !-- the filtering (bit 4) and set LAD to zero at these 1124 !-- artificially created building grid points. This case, 1125 !-- an informative message is given. 1115 1126 IF ( ANY( lad_s(:,j,i) /= 0.0_wp ) .AND. & 1116 ANY( BTEST( wall_flags_0(:,j,i), 6 ) ) ) THEN 1127 ANY( BTEST( wall_flags_0(:,j,i), 6 ) ) .AND. & 1128 ANY( BTEST( wall_flags_0(:,j,i), 4 ) ) ) THEN 1117 1129 lad_s(:,j,i) = 0.0_wp 1118 1130 WRITE( message_string, * ) & 1119 'Resolved plant-canopy is ' // & 1120 'defined on top of a building ' // & 1121 '- lad is omitted at this grid ' //& 1122 'point: (i,j) = ', i, j 1131 'Resolved plant-canopy is ' // & 1132 'defined on top of an artificially '// & 1133 'created building grid point ' // & 1134 '(emerged from the filering) - ' // & 1135 'LAD profile is omitted at this ' // & 1136 'grid point: (i,j) = ', i, j 1123 1137 CALL message( 'pcm_init', 'PA0313', 0, 0, myid, 6, 0 ) 1124 1138 ENDIF … … 1918 1932 INTEGER(iwp) :: kk !< running index for flat lad arrays 1919 1933 1934 LOGICAL :: building_edge_e !< control flag indicating an eastward-facing building edge 1935 LOGICAL :: building_edge_n !< control flag indicating a north-facing building edge 1936 LOGICAL :: building_edge_s !< control flag indicating a south-facing building edge 1937 LOGICAL :: building_edge_w !< control flag indicating a westward-facing building edge 1938 1920 1939 REAL(wp) :: ddt_3d !< inverse of the LES timestep (dt_3d) 1921 1940 REAL(wp) :: lad_local !< local lad value … … 1935 1954 CASE ( 1 ) 1936 1955 ! 1956 !-- Set control flags indicating east- and westward-orientated 1957 !-- building edges. Note, building_egde_w is set from the perspective 1958 !-- of the potential rooftop grid point, while building_edge_e is 1959 !-- is set from the perspective of the non-building grid point. 1960 building_edge_w = ANY( BTEST( wall_flags_0(:,j,i), 6 ) ) .AND. & 1961 .NOT. ANY( BTEST( wall_flags_0(:,j,i-1), 6 ) ) 1962 building_edge_e = ANY( BTEST( wall_flags_0(:,j,i-1), 6 ) ) .AND. & 1963 .NOT. ANY( BTEST( wall_flags_0(:,j,i), 6 ) ) 1964 ! 1937 1965 !-- Determine topography-top index on u-grid 1938 1966 k_wall = topo_top_ind(j,i,1) … … 1948 1976 !-- than inside of the canopy. 1949 1977 !-- For the same reason, the lad at the rightmost(i+1)canopy 1950 !-- boundary on the u-grid equals lad_s(k,j,i). 1978 !-- boundary on the u-grid equals lad_s(k,j,i), which is considered 1979 !-- in the next if-statement. Note, at left-sided building edges 1980 !-- this is not applied, here the LAD is equals the LAD at grid 1981 !-- point (k,j,i), in order to avoid that LAD is mistakenly mapped 1982 !-- on top of a roof where (usually) is no LAD is defined. 1951 1983 lad_local = lad_s(kk,j,i) 1952 IF ( lad_local == 0.0_wp .AND. lad_s(kk,j,i-1) > 0.0_wp ) THEN 1953 lad_local = lad_s(kk,j,i-1) 1954 ENDIF 1984 IF ( lad_local == 0.0_wp .AND. lad_s(kk,j,i-1) > 0.0_wp .AND. & 1985 .NOT. building_edge_w ) lad_local = lad_s(kk,j,i-1) 1986 ! 1987 !-- In order to avoid that LAD is mistakenly considered at right- 1988 !-- sided building edges (here the topography-top index for the 1989 !-- u-component at index j,i is still on the building while the 1990 !-- topography top for the scalar isn't), LAD is taken from grid 1991 !-- point (j,i-1). 1992 IF ( lad_local > 0.0_wp .AND. lad_s(kk,j,i-1) == 0.0_wp .AND. & 1993 building_edge_e ) lad_local = lad_s(kk,j,i-1) 1955 1994 1956 1995 pre_tend = 0.0_wp … … 1995 2034 CASE ( 2 ) 1996 2035 ! 2036 !-- Set control flags indicating north- and southward-orientated 2037 !-- building edges. Note, building_egde_s is set from the perspective 2038 !-- of the potential rooftop grid point, while building_edge_n is 2039 !-- is set from the perspective of the non-building grid point. 2040 building_edge_s = ANY( BTEST( wall_flags_0(:,j,i), 6 ) ) .AND. & 2041 .NOT. ANY( BTEST( wall_flags_0(:,j-1,i), 6 ) ) 2042 building_edge_n = ANY( BTEST( wall_flags_0(:,j-1,i), 6 ) ) .AND. & 2043 .NOT. ANY( BTEST( wall_flags_0(:,j,i), 6 ) ) 2044 ! 1997 2045 !-- Determine topography-top index on v-grid 1998 2046 k_wall = topo_top_ind(j,i,2) 1999 2000 2047 DO k = k_wall + 1, k_wall + pch_index_ji(j,i) 2001 2048 … … 2008 2055 !-- than inside of the canopy. 2009 2056 !-- For the same reason, the lad at the northmost(j+1)canopy 2010 !-- boundary on the v-grid equals lad_s(k,j,i). 2057 !-- boundary on the v-grid equals lad_s(k,j,i), which is considered 2058 !-- in the next if-statement. Note, at left-sided building edges 2059 !-- this is not applied, here the LAD is equals the LAD at grid 2060 !-- point (k,j,i), in order to avoid that LAD is mistakenly mapped 2061 !-- on top of a roof where (usually) is no LAD is defined. 2011 2062 lad_local = lad_s(kk,j,i) 2012 IF ( lad_local == 0.0_wp .AND. lad_s(kk,j-1,i) > 0.0_wp ) THEN 2013 lad_local = lad_s(kk,j-1,i) 2014 ENDIF 2063 IF ( lad_local == 0.0_wp .AND. lad_s(kk,j-1,i) > 0.0_wp .AND. & 2064 .NOT. building_edge_s ) lad_local = lad_s(kk,j-1,i) 2065 ! 2066 !-- In order to avoid that LAD is mistakenly considered at right- 2067 !-- sided building edges (here the topography-top index for the 2068 !-- u-component at index j,i is still on the building while the 2069 !-- topography top for the scalar isn't), LAD is taken from grid 2070 !-- point (j,i-1). 2071 IF ( lad_local > 0.0_wp .AND. lad_s(kk,j-1,i) == 0.0_wp .AND. & 2072 building_edge_n ) lad_local = lad_s(kk,j-1,i) 2015 2073 2016 2074 pre_tend = 0.0_wp
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