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source: palm/trunk/SOURCE/virtual_flight_mod.f90 @ 3682

Last change on this file since 3682 was 3655, checked in by knoop, 6 years ago
Bugfix: made "unit" and "found" intend INOUT in module interface subroutines + automatic copyright update
Property svn:keywords set to `Id`
File size: 40.0 KB

Rev	Line
[1957]	1	!> @file virtual_flights_mod.f90
[2000]	2	!------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1957]	4	!
[2000]	5	! PALM is free software: you can redistribute it and/or modify it under the
	6	! terms of the GNU General Public License as published by the Free Software
	7	! Foundation, either version 3 of the License, or (at your option) any later
	8	! version.
[1957]	9	!
	10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	13	!
	14	! You should have received a copy of the GNU General Public License along with
	15	! PALM. If not, see <http://www.gnu.org/licenses/>.
	16	!
[3655]	17	! Copyright 1997-2019 Leibniz Universitaet Hannover
[2000]	18	!------------------------------------------------------------------------------!
[1957]	19	!
	20	! Current revisions:
	21	! ------------------
	22	!
[3049]	23	!
[1957]	24	! Former revisions:
	25	! -----------------
	26	! $Id: virtual_flight_mod.f90 3655 2019-01-07 16:51:22Z knoop $
[3547]	27	! variables documented
	28	!
	29	! 3421 2018-10-24 18:39:32Z gronemeier
[3421]	30	! Renamed output variables
	31	!
	32	! 3274 2018-09-24 15:42:55Z knoop
[3274]	33	! Modularization of all bulk cloud physics code components
	34	!
	35	! 3248 2018-09-14 09:42:06Z sward
[3248]	36	! Minor formating changes
	37	!
	38	! 3246 2018-09-13 15:14:50Z sward
[3246]	39	! Added error handling for input namelist via parin_fail_message
	40	!
	41	! 3241 2018-09-12 15:02:00Z raasch
[3241]	42	! unused variables removed
	43	!
	44	! 3182 2018-07-27 13:36:03Z suehring
[3065]	45	! IF statement revised to consider new vertical grid stretching
	46	!
	47	! 3049 2018-05-29 13:52:36Z Giersch
[3049]	48	! Error messages revised
	49	!
	50	! 2932 2018-03-26 09:39:22Z Giersch
[2932]	51	! renamed flight_par to virtual_flight_parameters
	52	!
	53	! 2894 2018-03-15 09:17:58Z Giersch
[2894]	54	! variable named found has been introduced for checking if restart data was
	55	! found, reading of restart strings has been moved completely to
	56	! read_restart_data_mod, virtual_flight_prerun flag has been removed, redundant
	57	! skipping function has been removed, flight_read/write_restart_data
	58	! have been renamed to flight_r/wrd_global, flight_rrd_global is called in
	59	! read_restart_data_mod now, marker * end flight * was removed, strings and
	60	! their respective lengths are written out and read now in case of restart runs
	61	! to get rid of prescribed character lengths, CASE DEFAULT was added if restart
	62	! data is read
	63	!
	64	! 2872 2018-03-12 10:05:47Z Giersch
[2776]	65	! virutal_flight_prerun flag is used to define if module
	66	! related parameters were outputted as restart data
	67	!
	68	! 2718 2018-01-02 08:49:38Z maronga
[2716]	69	! Corrected "Former revisions" section
	70	!
	71	! 2696 2017-12-14 17:12:51Z kanani
	72	! Change in file header (GPL part)
	73	!
	74	! 2576 2017-10-24 13:49:46Z Giersch
[2576]	75	! Definition of a new function called flight_skip_var_list to skip module
	76	! parameters during reading restart data
	77	!
	78	! 2563 2017-10-19 15:36:10Z Giersch
[2563]	79	! flight_read_restart_data is called in flight_parin in the case of a restart
	80	! run. flight_skip_var_list is not necessary anymore due to marker changes in
	81	! restart files.
	82	!
	83	! 2271 2017-06-09 12:34:55Z sward
[2271]	84	! Todo added
	85	!
	86	! 2101 2017-01-05 16:42:31Z suehring
[1957]	87	!
[2001]	88	! 2000 2016-08-20 18:09:15Z knoop
	89	! Forced header and separation lines into 80 columns
	90	!
[1961]	91	! 1960 2016-07-12 16:34:24Z suehring
	92	! Separate humidity and passive scalar.
	93	! Bugfix concerning labeling of timeseries.
	94	!
[1958]	95	! 1957 2016-07-07 10:43:48Z suehring
[1957]	96	! Initial revision
	97	!
	98	! Description:
	99	! ------------
	100	!> Module for virtual flight measurements.
[2271]	101	!> @todo Err msg PA0438: flight can be inside topography -> extra check?
[1957]	102	!--------------------------------------------------------------------------------!
	103	MODULE flight_mod
	104
	105	USE control_parameters, &
[2894]	106	ONLY: fl_max, num_leg, num_var_fl, num_var_fl_user, virtual_flight
[1957]	107
	108	USE kinds
	109
	110	CHARACTER(LEN=6), DIMENSION(fl_max) :: leg_mode = 'cyclic' !< flight mode through the model domain, either 'cyclic' or 'return'
	111
	112	INTEGER(iwp) :: l !< index for flight leg
	113	INTEGER(iwp) :: var_index !< index for measured variable
	114
	115	LOGICAL, DIMENSION(:), ALLOCATABLE :: cyclic_leg !< flag to identify fly mode
	116
	117	REAL(wp) :: flight_end = 9999999.9_wp !< end time of virtual flight
	118	REAL(wp) :: flight_begin = 0.0_wp !< end time of virtual flight
	119
	120	REAL(wp), DIMENSION(fl_max) :: flight_angle = 45.0_wp !< angle determining the horizontal flight direction
	121	REAL(wp), DIMENSION(fl_max) :: flight_level = 100.0_wp !< flight level
	122	REAL(wp), DIMENSION(fl_max) :: max_elev_change = 0.0_wp !< maximum elevation change for the respective flight leg
	123	REAL(wp), DIMENSION(fl_max) :: rate_of_climb = 0.0_wp !< rate of climb or descent
	124	REAL(wp), DIMENSION(fl_max) :: speed_agl = 25.0_wp !< absolute horizontal flight speed above ground level (agl)
	125	REAL(wp), DIMENSION(fl_max) :: x_start = 999999999.0_wp !< start x position
	126	REAL(wp), DIMENSION(fl_max) :: x_end = 999999999.0_wp !< end x position
	127	REAL(wp), DIMENSION(fl_max) :: y_start = 999999999.0_wp !< start y position
	128	REAL(wp), DIMENSION(fl_max) :: y_end = 999999999.0_wp !< end y position
	129
	130	REAL(wp), DIMENSION(:), ALLOCATABLE :: u_agl !< u-component of flight speed
	131	REAL(wp), DIMENSION(:), ALLOCATABLE :: v_agl !< v-component of flight speed
	132	REAL(wp), DIMENSION(:), ALLOCATABLE :: w_agl !< w-component of flight speed
	133	REAL(wp), DIMENSION(:), ALLOCATABLE :: x_pos !< aircraft x-position
	134	REAL(wp), DIMENSION(:), ALLOCATABLE :: y_pos !< aircraft y-position
	135	REAL(wp), DIMENSION(:), ALLOCATABLE :: z_pos !< aircraft z-position
	136
	137	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: sensor_l !< measured data on local PE
	138	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: sensor !< measured data
	139
	140	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: var_u !< dummy array for possibly user-defined quantities
	141
	142	SAVE
	143
	144	PRIVATE
	145
	146	INTERFACE flight_header
	147	MODULE PROCEDURE flight_header
	148	END INTERFACE flight_header
	149
	150	INTERFACE flight_init
	151	MODULE PROCEDURE flight_init
	152	END INTERFACE flight_init
	153
	154	INTERFACE flight_init_output
	155	MODULE PROCEDURE flight_init_output
	156	END INTERFACE flight_init_output
	157
	158	INTERFACE flight_check_parameters
	159	MODULE PROCEDURE flight_check_parameters
	160	END INTERFACE flight_check_parameters
	161
	162	INTERFACE flight_parin
	163	MODULE PROCEDURE flight_parin
	164	END INTERFACE flight_parin
	165
	166	INTERFACE interpolate_xyz
	167	MODULE PROCEDURE interpolate_xyz
	168	END INTERFACE interpolate_xyz
	169
	170	INTERFACE flight_measurement
	171	MODULE PROCEDURE flight_measurement
	172	END INTERFACE flight_measurement
	173
[2894]	174	INTERFACE flight_rrd_global
	175	MODULE PROCEDURE flight_rrd_global
	176	END INTERFACE flight_rrd_global
[1957]	177
[2894]	178	INTERFACE flight_wrd_global
	179	MODULE PROCEDURE flight_wrd_global
	180	END INTERFACE flight_wrd_global
[1957]	181
	182	!
	183	!-- Private interfaces
	184	PRIVATE flight_check_parameters, flight_init_output, interpolate_xyz
	185	!
	186	!-- Public interfaces
	187	PUBLIC flight_init, flight_header, flight_parin, flight_measurement, &
[2894]	188	flight_wrd_global, flight_rrd_global
[1957]	189	!
	190	!-- Public variables
	191	PUBLIC fl_max, sensor, x_pos, y_pos, z_pos
	192
	193	CONTAINS
	194
	195	!------------------------------------------------------------------------------!
	196	! Description:
	197	! ------------
	198	!> Header output for flight module.
	199	!------------------------------------------------------------------------------!
	200	SUBROUTINE flight_header ( io )
	201
	202
	203	IMPLICIT NONE
	204
	205	INTEGER(iwp), INTENT(IN) :: io !< Unit of the output file
	206
	207	WRITE ( io, 1 )
	208	WRITE ( io, 2 )
	209	WRITE ( io, 3 ) num_leg
	210	WRITE ( io, 4 ) flight_begin
	211	WRITE ( io, 5 ) flight_end
	212
	213	DO l=1, num_leg
	214	WRITE ( io, 6 ) l
	215	WRITE ( io, 7 ) speed_agl(l)
	216	WRITE ( io, 8 ) flight_level(l)
	217	WRITE ( io, 9 ) max_elev_change(l)
	218	WRITE ( io, 10 ) rate_of_climb(l)
	219	WRITE ( io, 11 ) leg_mode(l)
	220	ENDDO
	221
	222
	223	1 FORMAT (' Virtual flights:'/ &
	224	' ----------------')
	225	2 FORMAT (' Output every timestep')
	226	3 FORMAT (' Number of flight legs:', I3 )
	227	4 FORMAT (' Begin of measurements:', F10.1 , ' s' )
	228	5 FORMAT (' End of measurements:', F10.1 , ' s' )
	229	6 FORMAT (' Leg', I3/, &
	230	' ------' )
	231	7 FORMAT (' Flight speed : ', F5.1, ' m/s' )
	232	8 FORMAT (' Flight level : ', F5.1, ' m' )
	233	9 FORMAT (' Maximum elevation change: ', F5.1, ' m/s' )
	234	10 FORMAT (' Rate of climb / descent : ', F5.1, ' m/s' )
	235	11 FORMAT (' Leg mode : ', A/ )
	236
	237	END SUBROUTINE flight_header
	238
	239	!------------------------------------------------------------------------------!
	240	! Description:
	241	! ------------
	242	!> Reads the namelist flight_par.
	243	!------------------------------------------------------------------------------!
	244	SUBROUTINE flight_parin
	245
[2563]	246	USE control_parameters, &
[3241]	247	ONLY: message_string
[2563]	248
[1957]	249	IMPLICIT NONE
	250
	251	CHARACTER (LEN=80) :: line !< dummy string that contains the current line of the parameter file
	252
	253	NAMELIST /flight_par/ flight_angle, flight_end, flight_begin, leg_mode,&
	254	flight_level, max_elev_change, rate_of_climb, &
	255	speed_agl, x_end, x_start, y_end, y_start
[2932]	256
	257
	258	NAMELIST /virtual_flight_parameters/ &
	259	flight_angle, flight_end, flight_begin, leg_mode,&
	260	flight_level, max_elev_change, rate_of_climb, &
	261	speed_agl, x_end, x_start, y_end, y_start
[1957]	262	!
	263	!-- Try to find the namelist flight_par
	264	REWIND ( 11 )
	265	line = ' '
[3248]	266	DO WHILE ( INDEX( line, '&virtual_flight_parameters' ) == 0 )
[3246]	267	READ ( 11, '(A)', END=12 ) line
[1957]	268	ENDDO
	269	BACKSPACE ( 11 )
	270
	271	!
	272	!-- Read namelist
[3246]	273	READ ( 11, virtual_flight_parameters, ERR = 10 )
[2932]	274	!
	275	!-- Set switch that virtual flights shall be carried out
	276	virtual_flight = .TRUE.
	277
[3246]	278	GOTO 14
	279
	280	10 BACKSPACE( 11 )
[3248]	281	READ( 11 , '(A)') line
	282	CALL parin_fail_message( 'virtual_flight_parameters', line )
[2932]	283	!
	284	!-- Try to find the old namelist
[3246]	285	12 REWIND ( 11 )
[2932]	286	line = ' '
[3248]	287	DO WHILE ( INDEX( line, '&flight_par' ) == 0 )
[3246]	288	READ ( 11, '(A)', END=14 ) line
[2932]	289	ENDDO
	290	BACKSPACE ( 11 )
	291
	292	!
	293	!-- Read namelist
[3246]	294	READ ( 11, flight_par, ERR = 13, END = 14 )
[2932]	295
	296	message_string = 'namelist flight_par is deprecated and will be ' // &
[3046]	297	'removed in near future.& Please use namelist ' // &
[2932]	298	'virtual_flight_parameters instead'
	299	CALL message( 'flight_parin', 'PA0487', 0, 1, 0, 6, 0 )
[1957]	300	!
	301	!-- Set switch that virtual flights shall be carried out
	302	virtual_flight = .TRUE.
	303
[3246]	304	GOTO 14
[2563]	305
[3246]	306	13 BACKSPACE( 11 )
[3248]	307	READ( 11 , '(A)') line
	308	CALL parin_fail_message( 'flight_par', line )
[3246]	309
	310	14 CONTINUE
	311
[1957]	312	END SUBROUTINE flight_parin
	313
	314	!------------------------------------------------------------------------------!
	315	! Description:
	316	! ------------
	317	!> Inititalization of required arrays, number of legs and flags. Moreover,
	318	!> initialize flight speed and -direction, as well as start positions.
	319	!------------------------------------------------------------------------------!
	320	SUBROUTINE flight_init
	321
[3274]	322	USE basic_constants_and_equations_mod, &
[1957]	323	ONLY: pi
	324
	325	USE control_parameters, &
	326	ONLY: initializing_actions
	327
	328	USE indices, &
	329	ONLY: nxlg, nxrg, nysg, nyng, nzb, nzt
	330
	331	IMPLICIT NONE
	332
	333	REAL(wp) :: distance !< distance between start and end position of a flight leg
	334	!
	335	!-- Determine the number of flight legs
	336	l = 1
	337	DO WHILE ( x_start(l) /= 999999999.0_wp .AND. l <= SIZE(x_start) )
	338	l = l + 1
	339	ENDDO
	340	num_leg = l-1
	341	!
	342	!-- Check for proper parameter settings
	343	CALL flight_check_parameters
	344	!
	345	!-- Allocate and initialize logical array for flight pattern
	346	ALLOCATE( cyclic_leg(1:num_leg) )
	347	!
	348	!-- Initialize flags for cyclic/return legs
	349	DO l = 1, num_leg
	350	cyclic_leg(l) = MERGE( .TRUE., .FALSE., &
	351	TRIM( leg_mode(l) ) == 'cyclic' &
	352	)
	353	ENDDO
	354	!
	355	!-- Allocate and initialize arraxs for flight position and speed. In case of
	356	!-- restart runs these data are read by the routine read_flight_restart_data
	357	!-- instead.
	358	IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN
	359
	360	ALLOCATE( x_pos(1:num_leg), y_pos(1:num_leg ), z_pos(1:num_leg) )
	361	!
	362	!-- Inititalize x-, y-, and z-positions with initial start position
	363	x_pos(1:num_leg) = x_start(1:num_leg)
	364	y_pos(1:num_leg) = y_start(1:num_leg)
	365	z_pos(1:num_leg) = flight_level(1:num_leg)
	366	!
	367	!-- Allocate arrays for flight-speed components
	368	ALLOCATE( u_agl(1:num_leg), &
	369	v_agl(1:num_leg), &
	370	w_agl(1:num_leg) )
	371	!
	372	!-- Inititalize u-, v- and w-component.
	373	DO l = 1, num_leg
	374	!
	375	!-- In case of return-legs, the flight direction, i.e. the horizontal
	376	!-- flight-speed components, are derived from the given start/end
	377	!-- positions.
	378	IF ( .NOT. cyclic_leg(l) ) THEN
	379	distance = SQRT( ( x_end(l) - x_start(l) )**2 &
	380	+ ( y_end(l) - y_start(l) )**2 )
	381	u_agl(l) = speed_agl(l) * ( x_end(l) - x_start(l) ) / distance
	382	v_agl(l) = speed_agl(l) * ( y_end(l) - y_start(l) ) / distance
	383	w_agl(l) = rate_of_climb(l)
	384	!
	385	!-- In case of cyclic-legs, flight direction is directly derived from
	386	!-- the given flight angle.
	387	ELSE
	388	u_agl(l) = speed_agl(l) * COS( flight_angle(l) * pi / 180.0_wp )
	389	v_agl(l) = speed_agl(l) * SIN( flight_angle(l) * pi / 180.0_wp )
	390	w_agl(l) = rate_of_climb(l)
	391	ENDIF
	392
	393	ENDDO
	394
	395	ENDIF
	396	!
	397	!-- Initialized data output
	398	CALL flight_init_output
	399	!
	400	!-- Allocate array required for user-defined quantities if necessary.
	401	IF ( num_var_fl_user > 0 ) &
	402	ALLOCATE( var_u(nzb:nzt+1,nysg:nyng,nxlg:nxrg) )
	403	!
	404	!-- Allocate and initialize arrays containing the measured data
	405	ALLOCATE( sensor_l(1:num_var_fl,1:num_leg) )
	406	ALLOCATE( sensor(1:num_var_fl,1:num_leg) )
	407	sensor_l = 0.0_wp
	408	sensor = 0.0_wp
	409
	410	END SUBROUTINE flight_init
	411
	412
	413	!------------------------------------------------------------------------------!
	414	! Description:
	415	! ------------
	416	!> Initialization of output-variable names and units.
	417	!------------------------------------------------------------------------------!
	418	SUBROUTINE flight_init_output
	419
	420	USE control_parameters, &
[3274]	421	ONLY: cloud_droplets, humidity, neutral, passive_scalar
	422
	423	USE bulk_cloud_model_mod, &
	424	ONLY: bulk_cloud_model
	425
[1957]	426	USE netcdf_interface
	427
	428	IMPLICIT NONE
	429
	430	CHARACTER(LEN=10) :: label_leg !< dummy argument to convert integer to string
	431
	432	INTEGER(iwp) :: i !< loop variable
[1960]	433	INTEGER(iwp) :: id_pt !< identifyer for labeling
	434	INTEGER(iwp) :: id_q !< identifyer for labeling
	435	INTEGER(iwp) :: id_ql !< identifyer for labeling
	436	INTEGER(iwp) :: id_s !< identifyer for labeling
	437	INTEGER(iwp) :: id_u = 1 !< identifyer for labeling
	438	INTEGER(iwp) :: id_v = 2 !< identifyer for labeling
	439	INTEGER(iwp) :: id_w = 3 !< identifyer for labeling
[1957]	440	INTEGER(iwp) :: k !< index variable
	441
	442	LOGICAL :: init = .TRUE. !< flag to distiquish calls of user_init_flight
	443	!
	444	!-- Define output quanities, at least three variables are measured (u,v,w)
	445	num_var_fl = 3
[1960]	446	IF ( .NOT. neutral ) THEN
	447	num_var_fl = num_var_fl + 1
	448	id_pt = num_var_fl
	449	ENDIF
	450	IF ( humidity ) THEN
	451	num_var_fl = num_var_fl + 1
	452	id_q = num_var_fl
	453	ENDIF
[3274]	454	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1960]	455	num_var_fl = num_var_fl + 1
	456	id_ql = num_var_fl
	457	ENDIF
	458	IF ( passive_scalar ) THEN
	459	num_var_fl = num_var_fl + 1
	460	id_s = num_var_fl
	461	ENDIF
[1957]	462	!
	463	!-- Write output strings for dimensions x, y, z
	464	DO l=1, num_leg
	465
	466	IF ( l < 10 ) WRITE( label_leg, '(I1)') l
	467	IF ( l >= 10 .AND. l < 100 ) WRITE( label_leg, '(I2)') l
	468	IF ( l >= 100 .AND. l < 1000 ) WRITE( label_leg, '(I3)') l
	469
	470	dofl_dim_label_x(l) = 'x_' // TRIM( label_leg )
	471	dofl_dim_label_y(l) = 'y_' // TRIM( label_leg )
	472	dofl_dim_label_z(l) = 'z_' // TRIM( label_leg )
	473
	474	ENDDO
	475
	476	!
	477	!-- Call user routine to initialize further variables
	478	CALL user_init_flight( init )
	479	!
	480	!-- Write output labels and units for the quanities
	481	k = 1
	482	DO l=1, num_leg
	483
	484	IF ( l < 10 ) WRITE( label_leg, '(I1)') l
	485	IF ( l >= 10 .AND. l < 100 ) WRITE( label_leg, '(I2)') l
	486	IF ( l >= 100 .AND. l < 1000 ) WRITE( label_leg, '(I3)') l
	487
	488	label_leg = 'leg_' // TRIM(label_leg)
	489	DO i=1, num_var_fl
	490
[1960]	491	IF ( i == id_u ) THEN
	492	dofl_label(k) = TRIM( label_leg ) // '_u'
	493	dofl_unit(k) = 'm/s'
	494	k = k + 1
	495	ELSEIF ( i == id_v ) THEN
	496	dofl_label(k) = TRIM( label_leg ) // '_v'
	497	dofl_unit(k) = 'm/s'
	498	k = k + 1
	499	ELSEIF ( i == id_w ) THEN
	500	dofl_label(k) = TRIM( label_leg ) // '_w'
	501	dofl_unit(k) = 'm/s'
	502	k = k + 1
	503	ELSEIF ( i == id_pt ) THEN
[3421]	504	dofl_label(k) = TRIM( label_leg ) // '_theta'
[1960]	505	dofl_unit(k) = 'K'
	506	k = k + 1
	507	ELSEIF ( i == id_q ) THEN
	508	dofl_label(k) = TRIM( label_leg ) // '_q'
	509	dofl_unit(k) = 'kg/kg'
	510	k = k + 1
	511	ELSEIF ( i == id_ql ) THEN
	512	dofl_label(k) = TRIM( label_leg ) // '_ql'
	513	dofl_unit(k) = 'kg/kg'
	514	k = k + 1
	515	ELSEIF ( i == id_s ) THEN
	516	dofl_label(k) = TRIM( label_leg ) // '_s'
	517	dofl_unit(k) = 'kg/kg'
	518	k = k + 1
	519	ENDIF
[1957]	520	ENDDO
	521
	522	DO i=1, num_var_fl_user
	523	CALL user_init_flight( init, k, i, label_leg )
	524	ENDDO
	525
	526	ENDDO
	527	!
	528	!-- Finally, set the total number of flight-output quantities.
	529	num_var_fl = num_var_fl + num_var_fl_user
	530
	531	END SUBROUTINE flight_init_output
	532
	533	!------------------------------------------------------------------------------!
	534	! Description:
	535	! ------------
	536	!> This routine calculates the current flight positions and calls the
	537	!> respective interpolation routine to measures the data at the current
	538	!> flight position.
	539	!------------------------------------------------------------------------------!
	540	SUBROUTINE flight_measurement
	541
	542	USE arrays_3d, &
[1960]	543	ONLY: ddzu, ddzw, pt, q, ql, s, u, v, w, zu, zw
[1957]	544
	545	USE control_parameters, &
[3274]	546	ONLY: cloud_droplets, dt_3d, humidity, neutral, &
[3241]	547	passive_scalar, simulated_time
[1957]	548
	549	USE cpulog, &
	550	ONLY: cpu_log, log_point
	551
	552	USE grid_variables, &
	553	ONLY: ddx, ddy, dx, dy
	554
	555	USE indices, &
[3241]	556	ONLY: nx, nxl, nxr, ny, nys, nyn
[1957]	557
[3274]	558	USE bulk_cloud_model_mod, &
	559	ONLY: bulk_cloud_model
	560
[1957]	561	USE pegrid
	562
	563	IMPLICIT NONE
	564
	565	LOGICAL :: on_pe !< flag to check if current flight position is on current PE
	566
	567	REAL(wp) :: x !< distance between left edge of current grid box and flight position
	568	REAL(wp) :: y !< distance between south edge of current grid box and flight position
	569
	570	INTEGER(iwp) :: i !< index of current grid box along x
	571	INTEGER(iwp) :: j !< index of current grid box along y
	572	INTEGER(iwp) :: n !< loop variable for number of user-defined output quantities
	573
	574	CALL cpu_log( log_point(65), 'flight_measurement', 'start' )
	575	!
	576	!-- Perform flight measurement if start time is reached.
	577	IF ( simulated_time >= flight_begin .AND. &
	578	simulated_time <= flight_end ) THEN
	579
	580	sensor_l = 0.0_wp
	581	sensor = 0.0_wp
	582	!
	583	!-- Loop over all flight legs
	584	DO l=1, num_leg
	585	!
	586	!-- Update location for each leg
	587	x_pos(l) = x_pos(l) + u_agl(l) * dt_3d
	588	y_pos(l) = y_pos(l) + v_agl(l) * dt_3d
	589	z_pos(l) = z_pos(l) + w_agl(l) * dt_3d
	590	!
	591	!-- Check if location must be modified for return legs.
	592	!-- Carry out horizontal reflection if required.
	593	IF ( .NOT. cyclic_leg(l) ) THEN
	594	!
	595	!-- Outward flight, i.e. from start to end
	596	IF ( u_agl(l) >= 0.0_wp .AND. x_pos(l) > x_end(l) ) THEN
	597	x_pos(l) = 2.0_wp * x_end(l) - x_pos(l)
	598	u_agl(l) = - u_agl(l)
	599	!
	600	!-- Return flight, i.e. from end to start
	601	ELSEIF ( u_agl(l) < 0.0_wp .AND. x_pos(l) < x_start(l) ) THEN
	602	x_pos(l) = 2.0_wp * x_start(l) - x_pos(l)
	603	u_agl(l) = - u_agl(l)
	604	ENDIF
	605	!
	606	!-- Outward flight, i.e. from start to end
	607	IF ( v_agl(l) >= 0.0_wp .AND. y_pos(l) > y_end(l) ) THEN
	608	y_pos(l) = 2.0_wp * y_end(l) - y_pos(l)
	609	v_agl(l) = - v_agl(l)
	610	!
	611	!-- Return flight, i.e. from end to start
	612	ELSEIF ( v_agl(l) < 0.0_wp .AND. y_pos(l) < y_start(l) ) THEN
	613	y_pos(l) = 2.0_wp * y_start(l) - y_pos(l)
	614	v_agl(l) = - v_agl(l)
	615	ENDIF
	616	!
	617	!-- Check if flight position is out of the model domain and apply
	618	!-- cyclic conditions if required
	619	ELSEIF ( cyclic_leg(l) ) THEN
	620	!
	621	!-- Check if aircraft leaves the model domain at the right boundary
	622	IF ( ( flight_angle(l) >= 0.0_wp .AND. &
	623	flight_angle(l) <= 90.0_wp ) .OR. &
	624	( flight_angle(l) >= 270.0_wp .AND. &
	625	flight_angle(l) <= 360.0_wp ) ) THEN
	626	IF ( x_pos(l) >= ( nx + 0.5_wp ) * dx ) &
	627	x_pos(l) = x_pos(l) - ( nx + 1 ) * dx
	628	!
	629	!-- Check if aircraft leaves the model domain at the left boundary
	630	ELSEIF ( flight_angle(l) > 90.0_wp .AND. &
	631	flight_angle(l) < 270.0_wp ) THEN
	632	IF ( x_pos(l) < -0.5_wp * dx ) &
	633	x_pos(l) = ( nx + 1 ) * dx + x_pos(l)
	634	ENDIF
	635	!
	636	!-- Check if aircraft leaves the model domain at the north boundary
	637	IF ( flight_angle(l) >= 0.0_wp .AND. &
	638	flight_angle(l) <= 180.0_wp ) THEN
	639	IF ( y_pos(l) >= ( ny + 0.5_wp ) * dy ) &
	640	y_pos(l) = y_pos(l) - ( ny + 1 ) * dy
	641	!
	642	!-- Check if aircraft leaves the model domain at the south boundary
	643	ELSEIF ( flight_angle(l) > 180.0_wp .AND. &
	644	flight_angle(l) < 360.0_wp ) THEN
	645	IF ( y_pos(l) < -0.5_wp * dy ) &
	646	y_pos(l) = ( ny + 1 ) * dy + y_pos(l)
	647	ENDIF
	648
	649	ENDIF
	650	!
	651	!-- Check if maximum elevation change is already reached. If required
	652	!-- reflect vertically.
	653	IF ( rate_of_climb(l) /= 0.0_wp ) THEN
	654	!
	655	!-- First check if aircraft is too high
	656	IF ( w_agl(l) > 0.0_wp .AND. &
	657	z_pos(l) - flight_level(l) > max_elev_change(l) ) THEN
	658	z_pos(l) = 2.0_wp * ( flight_level(l) + max_elev_change(l) )&
	659	- z_pos(l)
	660	w_agl(l) = - w_agl(l)
	661	!
	662	!-- Check if aircraft is too low
	663	ELSEIF ( w_agl(l) < 0.0_wp .AND. z_pos(l) < flight_level(l) ) THEN
	664	z_pos(l) = 2.0_wp * flight_level(l) - z_pos(l)
	665	w_agl(l) = - w_agl(l)
	666	ENDIF
	667
	668	ENDIF
	669	!
	670	!-- Determine grid indices for flight position along x- and y-direction.
	671	!-- Please note, there is a special treatment for the index
	672	!-- along z-direction, which is due to vertical grid stretching.
	673	i = ( x_pos(l) + 0.5_wp * dx ) * ddx
	674	j = ( y_pos(l) + 0.5_wp * dy ) * ddy
	675	!
	676	!-- Check if indices are on current PE
	677	on_pe = ( i >= nxl .AND. i <= nxr .AND. &
	678	j >= nys .AND. j <= nyn )
	679
	680	IF ( on_pe ) THEN
	681
	682	var_index = 1
	683	!
	684	!-- Recalculate indices, as u is shifted by -0.5*dx.
	685	i = x_pos(l) * ddx
	686	j = ( y_pos(l) + 0.5_wp * dy ) * ddy
	687	!
	688	!-- Calculate distance from left and south grid-box edges.
	689	x = x_pos(l) - ( 0.5_wp - i ) * dx
	690	y = y_pos(l) - j * dy
	691	!
	692	!-- Interpolate u-component onto current flight position.
	693	CALL interpolate_xyz( u, zu, ddzu, 1.0_wp, x, y, var_index, j, i )
	694	var_index = var_index + 1
	695	!
	696	!-- Recalculate indices, as v is shifted by -0.5*dy.
	697	i = ( x_pos(l) + 0.5_wp * dx ) * ddx
	698	j = y_pos(l) * ddy
	699
	700	x = x_pos(l) - i * dx
	701	y = y_pos(l) - ( 0.5_wp - j ) * dy
	702	CALL interpolate_xyz( v, zu, ddzu, 1.0_wp, x, y, var_index, j, i )
	703	var_index = var_index + 1
	704	!
	705	!-- Interpolate w and scalar quantities. Recalculate indices.
	706	i = ( x_pos(l) + 0.5_wp * dx ) * ddx
	707	j = ( y_pos(l) + 0.5_wp * dy ) * ddy
	708	x = x_pos(l) - i * dx
	709	y = y_pos(l) - j * dy
	710	!
	711	!-- Interpolate w-velocity component.
	712	CALL interpolate_xyz( w, zw, ddzw, 0.0_wp, x, y, var_index, j, i )
	713	var_index = var_index + 1
	714	!
	715	!-- Potential temerature
	716	IF ( .NOT. neutral ) THEN
	717	CALL interpolate_xyz( pt, zu, ddzu, 1.0_wp, x, y, var_index, j, i )
	718	var_index = var_index + 1
	719	ENDIF
	720	!
[1960]	721	!-- Humidity
	722	IF ( humidity ) THEN
[1957]	723	CALL interpolate_xyz( q, zu, ddzu, 1.0_wp, x, y, var_index, j, i )
	724	var_index = var_index + 1
	725	ENDIF
	726	!
	727	!-- Liquid water content
[3274]	728	IF ( bulk_cloud_model .OR. cloud_droplets ) THEN
[1957]	729	CALL interpolate_xyz( ql, zu, ddzu, 1.0_wp, x, y, var_index, j, i )
	730	var_index = var_index + 1
	731	ENDIF
	732	!
[1960]	733	!-- Passive scalar
	734	IF ( passive_scalar ) THEN
	735	CALL interpolate_xyz( s, zu, ddzu, 1.0_wp, x, y, var_index, j, i )
	736	var_index = var_index + 1
	737	ENDIF
	738	!
[1957]	739	!-- Treat user-defined variables if required
	740	DO n = 1, num_var_fl_user
	741	CALL user_flight( var_u, n )
	742	CALL interpolate_xyz( var_u, zu, ddzu, 1.0_wp, x, y, var_index, j, i )
	743	var_index = var_index + 1
	744	ENDDO
	745	ENDIF
	746
	747	ENDDO
	748	!
	749	!-- Write local data on global array.
	750	#if defined( __parallel )
	751	CALL MPI_ALLREDUCE(sensor_l(1,1), sensor(1,1), &
	752	num_var_fl*num_leg, MPI_REAL, MPI_SUM, &
	753	comm2d, ierr )
	754	#else
	755	sensor = sensor_l
	756	#endif
	757	ENDIF
	758
	759	CALL cpu_log( log_point(65), 'flight_measurement', 'stop' )
	760
	761	END SUBROUTINE flight_measurement
	762
	763	!------------------------------------------------------------------------------!
	764	! Description:
	765	! ------------
	766	!> This subroutine bi-linearly interpolates the respective data onto the current
	767	!> flight position.
	768	!------------------------------------------------------------------------------!
	769	SUBROUTINE interpolate_xyz( var, z_uw, ddz_uw, fac, x, y, var_ind, j, i )
	770
	771	USE control_parameters, &
[3065]	772	ONLY: dz, dz_stretch_level_start
[1957]	773
[3241]	774	USE grid_variables, &
[1957]	775	ONLY: dx, dy
	776
	777	USE indices, &
	778	ONLY: nzb, nzt, nxlg, nxrg, nysg, nyng
	779
	780	IMPLICIT NONE
	781
	782	INTEGER(iwp) :: i !< index along x
	783	INTEGER(iwp) :: j !< index along y
	784	INTEGER(iwp) :: k !< index along z
	785	INTEGER(iwp) :: k1 !< dummy variable
	786	INTEGER(iwp) :: var_ind !< index variable for output quantity
	787
	788	REAL(wp) :: aa !< dummy argument for horizontal interpolation
	789	REAL(wp) :: bb !< dummy argument for horizontal interpolation
	790	REAL(wp) :: cc !< dummy argument for horizontal interpolation
	791	REAL(wp) :: dd !< dummy argument for horizontal interpolation
	792	REAL(wp) :: gg !< dummy argument for horizontal interpolation
	793	REAL(wp) :: fac !< flag to indentify if quantity is on zu or zw level
	794	REAL(wp) :: var_int !< horizontal interpolated variable at current position
	795	REAL(wp) :: var_int_l !< horizontal interpolated variable at k-level
	796	REAL(wp) :: var_int_u !< horizontal interpolated variable at (k+1)-level
	797	REAL(wp) :: x !< distance between left edge of current grid box and flight position
	798	REAL(wp) :: y !< distance between south edge of current grid box and flight position
	799
	800	REAL(wp), DIMENSION(1:nzt+1) :: ddz_uw !< inverse vertical grid spacing
	801	REAL(wp), DIMENSION(nzb:nzt+1) :: z_uw !< height level
	802
	803	REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< treted quantity
	804	!
	805	!-- Calculate interpolation coefficients
	806	aa = x2 + y2
	807	bb = ( dx - x )2 + y2
	808	cc = x2 + ( dy - y )2
	809	dd = ( dx - x )2 + ( dy - y )2
	810	gg = aa + bb + cc + dd
	811	!
	812	!-- Obtain vertical index. Special treatment for grid index along z-direction
	813	!-- if flight position is above the vertical grid-stretching level.
	814	!-- fac=1 if variable is on scalar grid level, fac=0 for w-component.
[3065]	815	IF ( z_pos(l) < dz_stretch_level_start(1) ) THEN
	816	k = ( z_pos(l) + fac * 0.5_wp * dz(1) ) / dz(1)
[1957]	817	ELSE
	818	!
	819	!-- Search for k-index
	820	DO k1=nzb, nzt
	821	IF ( z_pos(l) >= z_uw(k1) .AND. z_pos(l) < z_uw(k1+1) ) THEN
	822	k = k1
	823	EXIT
	824	ENDIF
	825	ENDDO
	826	ENDIF
	827	!
	828	!-- (x,y)-interpolation at k-level
	829	var_int_l = ( ( gg - aa ) * var(k,j,i) + &
	830	( gg - bb ) * var(k,j,i+1) + &
	831	( gg - cc ) * var(k,j+1,i) + &
	832	( gg - dd ) * var(k,j+1,i+1) &
	833	) / ( 3.0_wp * gg )
	834	!
	835	!-- (x,y)-interpolation on (k+1)-level
	836	var_int_u = ( ( gg - aa ) * var(k+1,j,i) + &
	837	( gg - bb ) * var(k+1,j,i+1) + &
	838	( gg - cc ) * var(k+1,j+1,i) + &
	839	( gg - dd ) * var(k+1,j+1,i+1) &
	840	) / ( 3.0_wp * gg )
	841	!
	842	!-- z-interpolation onto current flight postion
	843	var_int = var_int_l &
	844	+ ( z_pos(l) - z_uw(k) ) * ddz_uw(k+1) &
	845	* (var_int_u - var_int_l )
	846	!
	847	!-- Store on local data array
	848	sensor_l(var_ind,l) = var_int
	849
	850	END SUBROUTINE interpolate_xyz
	851
	852	!------------------------------------------------------------------------------!
	853	! Description:
	854	! ------------
	855	!> Perform parameter checks.
	856	!------------------------------------------------------------------------------!
	857	SUBROUTINE flight_check_parameters
	858
	859	USE arrays_3d, &
	860	ONLY: zu
	861
	862	USE control_parameters, &
[3241]	863	ONLY: bc_lr_cyc, bc_ns_cyc, message_string
[1957]	864
	865	USE grid_variables, &
	866	ONLY: dx, dy
	867
	868	USE indices, &
	869	ONLY: nx, ny, nz
	870
	871	USE netcdf_interface, &
	872	ONLY: netcdf_data_format
	873
	874	IMPLICIT NONE
	875
	876	!
	877	!-- Check if start positions are properly set.
	878	DO l=1, num_leg
	879	IF ( x_start(l) < 0.0_wp .OR. x_start(l) > ( nx + 1 ) * dx ) THEN
	880	message_string = 'Start x position is outside the model domain'
	881	CALL message( 'flight_check_parameters', 'PA0431', 1, 2, 0, 6, 0 )
	882	ENDIF
	883	IF ( y_start(l) < 0.0_wp .OR. y_start(l) > ( ny + 1 ) * dy ) THEN
	884	message_string = 'Start y position is outside the model domain'
	885	CALL message( 'flight_check_parameters', 'PA0432', 1, 2, 0, 6, 0 )
	886	ENDIF
	887
	888	ENDDO
	889	!
	890	!-- Check for leg mode
	891	DO l=1, num_leg
	892	!
	893	!-- Check if leg mode matches the overall lateral model boundary
	894	!-- conditions.
	895	IF ( TRIM( leg_mode(l) ) == 'cyclic' ) THEN
	896	IF ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) THEN
	897	message_string = 'Cyclic flight leg does not match ' // &
	898	'lateral boundary condition'
	899	CALL message( 'flight_check_parameters', 'PA0433', 1, 2, 0, 6, 0 )
	900	ENDIF
	901	!
	902	!-- Check if end-positions are inside the model domain in case of
	903	!.. return-legs.
	904	ELSEIF ( TRIM( leg_mode(l) ) == 'return' ) THEN
	905	IF ( x_end(l) > ( nx + 1 ) * dx .OR. &
	906	y_end(l) > ( ny + 1 ) * dx ) THEN
	907	message_string = 'Flight leg or parts of it are outside ' // &
	908	'the model domain'
	909	CALL message( 'flight_check_parameters', 'PA0434', 1, 2, 0, 6, 0 )
	910	ENDIF
	911	ELSE
	912	message_string = 'Unknown flight mode'
	913	CALL message( 'flight_check_parameters', 'PA0435', 1, 2, 0, 6, 0 )
	914	ENDIF
	915
	916	ENDDO
	917	!
	918	!-- Check if start and end positions are properly set in case of return legs.
	919	DO l=1, num_leg
	920
	921	IF ( x_start(l) > x_end(l) .AND. leg_mode(l) == 'return' ) THEN
	922	message_string = 'x_start position must be <= x_end ' // &
	923	'position for return legs'
	924	CALL message( 'flight_check_parameters', 'PA0436', 1, 2, 0, 6, 0 )
	925	ENDIF
	926	IF ( y_start(l) > y_end(l) .AND. leg_mode(l) == 'return' ) THEN
	927	message_string = 'y_start position must be <= y_end ' // &
	928	'position for return legs'
	929	CALL message( 'flight_check_parameters', 'PA0437', 1, 2, 0, 6, 0 )
	930	ENDIF
	931	ENDDO
	932	!
	933	!-- Check if given flight object remains inside model domain if a rate of
	934	!-- climb / descent is prescribed.
	935	DO l=1, num_leg
	936	IF ( flight_level(l) + max_elev_change(l) > zu(nz) .OR. &
	937	flight_level(l) + max_elev_change(l) <= 0.0_wp ) THEN
	938	message_string = 'Flight level is outside the model domain '
	939	CALL message( 'flight_check_parameters', 'PA0438', 1, 2, 0, 6, 0 )
	940	ENDIF
	941	ENDDO
	942	!
	943	!-- Check for appropriate NetCDF format. Definition of more than one
	944	!-- unlimited dimension is unfortunately only possible with NetCDF4/HDF5.
	945	IF ( netcdf_data_format <= 2 ) THEN
	946	message_string = 'netcdf_data_format must be > 2'
	947	CALL message( 'flight_check_parameters', 'PA0439', 1, 2, 0, 6, 0 )
	948	ENDIF
	949
	950
	951	END SUBROUTINE flight_check_parameters
[2894]	952
[2576]	953
	954	!------------------------------------------------------------------------------!
	955	! Description:
	956	! ------------
[2894]	957	!> This routine reads the respective restart data.
[2576]	958	!------------------------------------------------------------------------------!
[2894]	959	SUBROUTINE flight_rrd_global( found )
[2576]	960
	961
[2894]	962	USE control_parameters, &
	963	ONLY: length, restart_string
[2576]	964
[1957]	965
	966	IMPLICIT NONE
	967
[3547]	968	LOGICAL, INTENT(OUT) :: found !< flag indicating if a variable string is found
[1957]	969
[2894]	970
	971	found = .TRUE.
	972
	973
	974	SELECT CASE ( restart_string(1:length) )
[1957]	975
[2894]	976	CASE ( 'u_agl' )
	977	IF ( .NOT. ALLOCATED( u_agl ) ) ALLOCATE( u_agl(1:num_leg) )
	978	READ ( 13 ) u_agl
	979	CASE ( 'v_agl' )
	980	IF ( .NOT. ALLOCATED( v_agl ) ) ALLOCATE( v_agl(1:num_leg) )
	981	READ ( 13 ) v_agl
	982	CASE ( 'w_agl' )
	983	IF ( .NOT. ALLOCATED( w_agl ) ) ALLOCATE( w_agl(1:num_leg) )
	984	READ ( 13 ) w_agl
	985	CASE ( 'x_pos' )
	986	IF ( .NOT. ALLOCATED( x_pos ) ) ALLOCATE( x_pos(1:num_leg) )
	987	READ ( 13 ) x_pos
	988	CASE ( 'y_pos' )
	989	IF ( .NOT. ALLOCATED( y_pos ) ) ALLOCATE( y_pos(1:num_leg) )
	990	READ ( 13 ) y_pos
	991	CASE ( 'z_pos' )
	992	IF ( .NOT. ALLOCATED( z_pos ) ) ALLOCATE( z_pos(1:num_leg) )
	993	READ ( 13 ) z_pos
	994
	995	CASE DEFAULT
	996
	997	found = .FALSE.
[1957]	998
[2894]	999	END SELECT
[1957]	1000
[2894]	1001
	1002	END SUBROUTINE flight_rrd_global
[1957]	1003
	1004	!------------------------------------------------------------------------------!
	1005	! Description:
	1006	! ------------
	1007	!> This routine writes the respective restart data.
	1008	!------------------------------------------------------------------------------!
[2894]	1009	SUBROUTINE flight_wrd_global
[1957]	1010
[2894]	1011
[1957]	1012	IMPLICIT NONE
[2894]	1013
	1014	CALL wrd_write_string( 'u_agl' )
	1015	WRITE ( 14 ) u_agl
	1016
	1017	CALL wrd_write_string( 'v_agl' )
[3182]	1018
[1957]	1019	WRITE ( 14 ) v_agl
[2894]	1020
	1021	CALL wrd_write_string( 'w_agl' )
[1957]	1022	WRITE ( 14 ) w_agl
[2894]	1023
	1024	CALL wrd_write_string( 'x_pos' )
[1957]	1025	WRITE ( 14 ) x_pos
[2894]	1026
	1027	CALL wrd_write_string( 'y_pos' )
[1957]	1028	WRITE ( 14 ) y_pos
[2894]	1029
	1030	CALL wrd_write_string( 'z_pos' )
[1957]	1031	WRITE ( 14 ) z_pos
	1032
[2894]	1033	END SUBROUTINE flight_wrd_global
[1957]	1034
	1035
	1036	END MODULE flight_mod

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