[6] | 1 | ;+ |
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| 2 | ; |
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| 3 | ; .. _interp_erai_dewt_1989_2009.pro: |
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| 4 | ; |
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[67] | 5 | ; ============================== |
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[70] | 6 | ; interp_erai_dewt_1989_2009.pro |
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[67] | 7 | ; ============================== |
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[6] | 8 | ; |
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[67] | 9 | ; DESCRIPTION |
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| 10 | ; =========== |
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| 11 | ; |
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[66] | 12 | ; Interpolation of d2 from ERA-I grid to OAFLUX grid |
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[6] | 13 | ; |
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[66] | 14 | ; :file:`${PROJECT_ID}/20c3m_erai_d2_TROP_1989_2009.nc` containing d2 from ERA-I have been produced |
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| 15 | ; by :ref:`compute_erai_daily_region_2d.sh`. |
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| 16 | ; |
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| 17 | ; :file:`${PROJECT_ID}/mask_oaflux_30N30S.nc` containing OAFLUX grid have been produced by :ref:`oaflux_mask_30N30S.pro`. |
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| 18 | ; |
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| 19 | ; Interpolated d2 is written in |
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| 20 | ; :file:`${PROJECT_OD}/erai_d2m_19890101_20091231_oafluxgrid.nc` if this file not already exists. |
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| 21 | ; |
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[67] | 22 | ; This output file :file:`${PROJECT_OD}/erai_d2m_19890101_20091231_oafluxgrid.nc` must be processed after by :ref:`d2m_to_q2m_erai.pro`. |
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[66] | 23 | ; |
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[8] | 24 | ; .. graphviz:: |
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| 25 | ; |
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| 26 | ; digraph interp_erai_dewt_1989_2009 { |
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| 27 | ; graph [ |
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| 28 | ; rankdir="LR", |
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| 29 | ; ] |
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[71] | 30 | ; |
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[66] | 31 | ; file_in [shape=ellipse,fontname=Courier,label="${PROJECT_ID}/20c3m_erai_d2_TROP_1989_2009.nc"]; |
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[50] | 32 | ; mask [shape=ellipse,fontname=Courier,label="${PROJECT_ID}/mask_oaflux_30N30S.nc"]; |
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[71] | 33 | ; file_out [shape=ellipse,fontname=Courier,label="${PROJECT_OD}/erai_d2m_19890101_20091231_oafluxgrid.nc"]; |
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[8] | 34 | ; |
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| 35 | ; interp_erai_dewt_1989_2009 [shape=box, |
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| 36 | ; fontname=Courier, |
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| 37 | ; color=blue, |
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| 38 | ; URL="http://forge.ipsl.jussieu.fr/tropflux/browser/trunk/src/interp_erai_dewt_1989_2009.pro", |
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[50] | 39 | ; label="${PROJECT}/src/interp_erai_dewt_1989_2009.pro"]; |
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[8] | 40 | ; |
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| 41 | ; {file_in mask} -> {interp_erai_dewt_1989_2009} -> {file_out} |
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| 42 | ; |
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[71] | 43 | ; } |
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[8] | 44 | ; |
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[6] | 45 | ; SEE ALSO |
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| 46 | ; ======== |
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| 47 | ; |
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[50] | 48 | ; :ref:`project_profile.sh` |
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[19] | 49 | ; |
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[20] | 50 | ; :func:`report <saxo:report>` |
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| 51 | ; :func:`isadirectory <saxo:isadirectory>` |
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| 52 | ; :func:`isafile <saxo:isafile>` |
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| 53 | ; :func:`initncdf <saxo:initncdf>` |
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| 54 | ; :func:`read_ncdf <saxo:read_ncdf>` |
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| 55 | ; :func:`domdef <saxo:domdef>` |
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| 56 | ; :func:`call_interp2d <saxo:call_interp2d>` |
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| 57 | ; :func:`ncdf_quickwrite <saxo:ncdf_quickwrite>` |
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| 58 | ; |
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[67] | 59 | ; :ref:`d2m_to_q2m_erai.pro` |
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[66] | 60 | ; |
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[6] | 61 | ; EXAMPLES |
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| 62 | ; ======== |
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| 63 | ; |
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| 64 | ; :: |
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| 65 | ; |
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[66] | 66 | ; IDL> .compile file_interp |
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[6] | 67 | ; IDL> interp_erai_dewt_1989_2009 |
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| 68 | ; |
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| 69 | ; TODO |
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| 70 | ; ==== |
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| 71 | ; |
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[66] | 72 | ; make it work : pb on loholt1:: |
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[6] | 73 | ; |
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[71] | 74 | ; d2m[longitude,latitude,time]=d2mout:d2m_attr; longitude[]=lon:lon_attr; latitude[]=lat:lat_attr; time[*time]=timein:time_attr @ globattr |
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| 75 | ; % NCDF_DIMDEF: 0 is not a valid cdfid. |
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| 76 | ; % Stop encountered: INTERP_ERAI_DEWT_1989_2009 1 |
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| 77 | ; /home/pinsard/tropflux_ws/src/interp_erai_dewt_1989_2009.pro |
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[66] | 78 | ; |
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[70] | 79 | ; check OUTMASK_IND and SET_OUTMSKVAL added to call_interp2d call |
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| 80 | ; |
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| 81 | ; use real output of :ref:`compute_erai_daily_region_2d.sh`. |
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| 82 | ; |
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[6] | 83 | ; coding rules |
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| 84 | ; |
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[19] | 85 | ; KNOWN ISSUES |
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| 86 | ; ============ |
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| 87 | ; |
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| 88 | ; test of existence of fullfilename_msk not very efficient because |
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| 89 | ; MUST_EXIST keyword of :func:`isafile <saxo:isafile>` not yet implemented |
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| 90 | ; |
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[6] | 91 | ; EVOLUTIONS |
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| 92 | ; ========== |
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| 93 | ; |
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[66] | 94 | ; $Id$ |
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| 95 | ; |
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| 96 | ; $URL$ |
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| 97 | ; |
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[70] | 98 | ; - fplod 20110808T094156Z cratos (Linux) |
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| 99 | ; |
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| 100 | ; * add OUTMASK_IND and SET_OUTMSKVAL to call_interp2d call |
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| 101 | ; |
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[66] | 102 | ; - pinsard 2011-07-05T07:33:36Z loholt1.ipsl.polytechnique.fr (Linux) |
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| 103 | ; |
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| 104 | ; * usage of $PROJECT_ID and $PROJECT_OD |
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| 105 | ; |
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[19] | 106 | ; - fplod 20101217T140745Z aedon.locean-ipsl.upmc.fr (Darwin) |
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| 107 | ; |
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| 108 | ; * remove hard coded directory for mask_oaflux_30N30S.nc |
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| 109 | ; |
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[8] | 110 | ; - fplod 20101215T093710Z aedon.locean-ipsl.upmc.fr (Darwin) |
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| 111 | ; |
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| 112 | ; * add graph in header |
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| 113 | ; |
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[6] | 114 | ; - fplod 20101214T093615Z aedon.locean-ipsl.upmc.fr (Darwin) |
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| 115 | ; |
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| 116 | ; * minimal header |
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| 117 | ; |
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| 118 | ; - pbk 2008 |
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| 119 | ; |
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| 120 | ; * creation |
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| 121 | ; |
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| 122 | ;- |
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[5] | 123 | pro interp_erai_dewt_1989_2009 |
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[66] | 124 | ; |
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| 125 | @cm_4cal |
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| 126 | @cm_4data |
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| 127 | @cm_4mesh |
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| 128 | @cm_4data |
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[50] | 129 | @cm_project |
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[19] | 130 | ; |
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[66] | 131 | ; check for input directory |
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[19] | 132 | ; |
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[50] | 133 | ; test if ${PROJECT_ID} defined |
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| 134 | CASE project_id_env OF |
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[19] | 135 | '' : BEGIN |
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[50] | 136 | msg = 'eee : ${PROJECT_ID} is not defined' |
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[19] | 137 | ras = report(msg) |
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| 138 | STOP |
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| 139 | END |
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| 140 | ELSE: BEGIN |
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[50] | 141 | msg = 'iii : ${PROJECT_ID} is ' + project_id_env |
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[19] | 142 | ras = report(msg) |
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| 143 | END |
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| 144 | ENDCASE |
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| 145 | ; |
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[50] | 146 | iodirin = isadirectory(project_id_env) |
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[19] | 147 | ; |
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[50] | 148 | ; existence and protection of ${PROJECT_ID} |
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[19] | 149 | IF (FILE_TEST(iodirin, /DIRECTORY, /EXECUTABLE, /READ) EQ 0) THEN BEGIN |
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| 150 | msg = 'eee : the directory' + iodirin + ' is not accessible.' |
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| 151 | ras = report(msg) |
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| 152 | STOP |
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| 153 | ENDIF |
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| 154 | ; |
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| 155 | ; build mask filename |
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| 156 | filename_msk='mask_oaflux_30N30S.nc' |
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| 157 | ; |
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| 158 | ; check if this file exists |
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| 159 | fullfilename_msk = isafile(iodirin + filename_msk, NEW=0, /MUST_EXIST) |
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| 160 | IF fullfilename_msk[0] EQ '' THEN BEGIN |
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| 161 | msg = 'eee : the file ' + fullfilename_msk + ' was not found.' |
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| 162 | ras = report(msg) |
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| 163 | STOP |
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| 164 | ENDIF |
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| 165 | ; |
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[66] | 166 | ; build data filename |
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| 167 | filename='20c3m_erai_d2_TROP_1989_2009.nc' |
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[71] | 168 | ; |
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| 169 | ; check if this file exists |
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[66] | 170 | fullfilename = isafile(iodirin + filename, NEW=0, /MUST_EXIST) |
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| 171 | IF fullfilename[0] EQ '' THEN BEGIN |
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| 172 | msg = 'eee : the file ' + fullfilename + ' was not found.' |
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| 173 | ras = report(msg) |
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| 174 | STOP |
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| 175 | ENDIF |
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| 176 | ; |
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| 177 | ; test if ${PROJECT_OD} defined |
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| 178 | CASE project_od_env OF |
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| 179 | '' : BEGIN |
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| 180 | msg = 'eee : ${PROJECT_OD} is not defined' |
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| 181 | ras = report(msg) |
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| 182 | STOP |
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| 183 | END |
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| 184 | ELSE: BEGIN |
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| 185 | msg = 'iii : ${PROJECT_OD} is ' + project_od_env |
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| 186 | ras = report(msg) |
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| 187 | END |
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| 188 | ENDCASE |
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| 189 | ; |
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| 190 | ; check if output data will be possible |
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| 191 | iodirout = isadirectory(project_od_env) |
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| 192 | ; |
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| 193 | ; existence and protection |
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| 194 | IF (FILE_TEST(iodirout, /DIRECTORY, /WRITE) EQ 0) THEN BEGIN |
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| 195 | msg = 'eee : the directory' + iodirout + ' was not found.' |
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| 196 | ras = report(msg) |
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| 197 | STOP |
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| 198 | ENDIF |
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| 199 | ; |
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| 200 | ; build output filename |
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| 201 | filename_out = 'erai_d2m_19890101_20091231_oafluxgrid.nc' |
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| 202 | fullfilename_out = iodirout + filename_out |
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| 203 | ; in order to avoid unexpected overwritten |
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| 204 | IF (FILE_TEST(fullfilename_out) EQ 1) THEN BEGIN |
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| 205 | msg = 'eee : the file ' + fullfilename_out + ' already exists.' |
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| 206 | ras = report(msg) |
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| 207 | STOP |
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| 208 | ENDIF |
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| 209 | ; |
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| 210 | initncdf, fullfilename |
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[5] | 211 | domdef |
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| 212 | latin=reform(gphit(0,*)) & lonin=reform(glamt(*,0)) |
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| 213 | print, 'lat grid ',min(latin),max(latin),latin(1)-latin(0) |
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| 214 | print, 'lon grid ',min(lonin),max(lonin),lonin(1)-lonin(0) |
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[66] | 215 | d2min=read_ncdf("d2",19881201,20101231,file=fullfilename,/nostr) |
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[5] | 216 | |
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| 217 | timein=time & jptin=jpt |
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| 218 | tab=d2min(*,*,0) |
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| 219 | mskin=glamt*0.+1. |
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| 220 | |
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[19] | 221 | initncdf, fullfilename_msk |
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[5] | 222 | domdef |
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| 223 | latout=reform(gphit(0,*)) & lonout=reform(glamt(*,0)) |
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| 224 | print, 'lat grid ',min(latout),max(latout),latout(1)-latout(0) |
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| 225 | print, 'lon grid ',min(lonout),max(lonout),lonout(1)-lonout(0) |
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[19] | 226 | mskout=read_ncdf("msk", file=fullfilename_msk,/nostr) |
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[5] | 227 | |
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| 228 | help, d2min,lonin,latin,mskin,lonout,latout,mskout |
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| 229 | |
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| 230 | si=size(d2min) |
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| 231 | d2mout=fltarr(jpi,jpj,jptin) |
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| 232 | for jt=0,jptin-1 do begin |
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| 233 | print, 'Interpolation jt=',jt,' / ',jptin-1 |
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| 234 | tab=reform(d2min(*,*,jt)) |
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[70] | 235 | d2mout(*,*,jt)=call_interp2d(tab,lonin,latin,mskin $ |
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| 236 | , lonout,latout,method='bilinear' $ |
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| 237 | , OUTMASK_IND=mskout, SET_OUTMSKVAL=mskout) |
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[5] | 238 | d2mout(*,*,jt)=d2mout(*,*,jt)*mskout+(1.-mskout)*1.e20 |
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| 239 | endfor |
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| 240 | |
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| 241 | timein=timein & jptin=jpt |
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| 242 | |
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[19] | 243 | initncdf, fullfilename_msk |
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[5] | 244 | cda0=string(jul2date(timein(0)),format='(i8.8)') |
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| 245 | cda1=string(jul2date(timein(jpt-1)),format='(i8.8)') |
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| 246 | |
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| 247 | time=timegen(7670, units='days', start=julday(1,1,1989)) & jpt=n_elements(time) |
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| 248 | cda0=string(jul2date(time(0)),format='(i8.8)') |
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| 249 | cda1=string(jul2date(time(jpt-1)),format='(i8.8)') |
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| 250 | timein=time-julday(1,1,1950,00,00) |
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| 251 | |
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| 252 | lat=latout |
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| 253 | lon=lonout |
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[66] | 254 | ncfile='!' + fullfilename_out |
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[5] | 255 | lon_attr={units:'degrees_east',long_name:'Longitude'} |
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| 256 | lat_attr={units:'degrees_north',long_name:'Latitude'} |
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| 257 | time_attr={units:'days since 1950-01-01 00:00:00',long_name:'Time axis',time_origin:' 1950-JAN-01 00:00:00'} |
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| 258 | d2m_attr={units:'degK',missing_value:1e20,long_name:'Dew Point Temperature at 2m',short_name:'d2m',axis:'TYX'} |
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| 259 | globattr={source:'Data are from ECMWF ERA-Interim reanalysis', timerange:cda0+' - '+cda1} |
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| 260 | |
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| 261 | ncfields = 'd2m[longitude,latitude,time]=d2mout:d2m_attr; ' $ |
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| 262 | + 'longitude[]=lon:lon_attr; ' $ |
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| 263 | + 'latitude[]=lat:lat_attr; ' $ |
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| 264 | + 'time[*time]=timein:time_attr ' $ |
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| 265 | + ' @ globattr' |
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| 266 | |
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| 267 | @ncdf_quickwrite |
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| 268 | |
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| 269 | end |
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