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Questions sur les mouillages

Questions sur les mouillages. position GPS vs position nominale PRES vs DEPH . Position GPS vs position nominale. Quel champ utiliser : LON/LAT, GPS_LON/GPS_LAT ?? Ordre de grandeur raisonnable du rayon d’évitement Proposer un test d’écart max.

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Questions sur les mouillages

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  1. Questions sur les mouillages • position GPS vs position nominale • PRES vs DEPH

  2. Position GPS vs position nominale • Quel champ utiliser : LON/LAT, GPS_LON/GPS_LAT ?? • Ordre de grandeur raisonnable du rayon d’évitement • Proposer un test d’écart max Doubles positions de certaines bouées : positions théoriques dans les fichiers MO, positions vraies (GPS ou Argos) dans les fichiers TE Distance entre MO et TE pour WMO 31003 ΔLon=0.48°= 53.28 km ΔLat=0.11° = 12.21 km Distance ~= 54.66 km  Position nominale probablement fausse

  3. Position GPS vs position nominale GL_LATEST_TS_MO_31003_20120103.nc data: TIME = 22647.5, 22647.5833333333, TIME_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ; LATITUDE = -7.916, -7.916, -7.94, -7.921, -7.913, -7.915, -7.915, -7.914, -7.905, -7.905, -7.914, -7.914, -7.917, -7.906, -7.923 ; LONGITUDE = -30.513, -30.513, -30.519, -30.511, -30.516, -30.51, -30.51, -30.508, -30.508, -30.508, -30.509, -30.512, -30.507, -30.5, -30.513 ; POSITION_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ; DEPH = 20, 40, 60, 80, 100, 120, 140, 300, 500, DEPH_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1, TEMP = 27.13, 27.12, 27.11, 27.11, 26.87, 23.11, 20.25, 9.92, 7.67, TEMP_QC = 1, 1, 1, 1, 1, 1, 1, 2, 2, PSAL = 36.44, 36.44, _, _, _, 36.64, _, _, _, PSAL_QC = 1, 1, _, _, _, 4, _, _, _, +champs: WSPD:long_name = "HORIZONTAL WIND SPEED" ; RELH:long_name = "relative humidity" ; DRYT:long_name = "DRY BULB TEMPERATURE" ; WDIR:long_name = "WIND DIRECTION REL. TRUE NORTH" ; GL_LATEST_PR_MO_31003_20120103.nc data: TIME = 22647.5 ; TIME_QC = 1 ; LATITUDE = -8 ; LONGITUDE = -30 ; POSITION_QC = 1 ; DATA_MODE = "R" ; DIRECTION = "U" ; DEPH = 20, 40, 60, 80, 100, 120, 140, 300, 500 ; DEPH_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1 ; TEMP = 27.13, 27.12, 27.11, 27.11, 26.87, 23.11, 20.25, 9.92, 7.67 ; TEMP_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1 ; PSAL = 36.44, 36.441, _, _, _, 36.644, _, _, _ ; PSAL_QC 1, 1, _, _, _, 1, _, _, _ ; GL_LATEST_PR_TE_31003_20120103.nc data: TIME = 22647.5 ; TIME_QC = 1 ; LATITUDE = -7.914 ; LONGITUDE = -30.508 ; POSITION_QC = 1 ; DATA_MODE = "R" ; DIRECTION = "U" ; DEPH = 20, 40, 60, 80, 100, 120, 140, 300, 500 ; DEPH_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1 ; PSAL = 36.44, 36.44, _, _, _, 36.64, _, _, _ ; PSAL_QC = 1, 1, _, _, _, 1, _, _, _ ; TEMP = 27.13, 27.12, 27.11, 27.11, 26.87, 23.11, 20.25, 9.92, 7.67 ; TEMP_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1 ; PMEL Données distribuées qd requête sur site web GTS OceanSites

  4. PRES vs DEPH • MO_LATEST_TS_MO_68422_20110820.nc contient les champs DEPH et PRES • DEPH= • 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, • PRES = • _, _, _, _, _, 110.28, _, _, _, _, _, _, • TEMP = • _, 26.786, 26.299, 18.257, 17.065, 16.705, _, _, _, _, _, 13.812, • PSAL = • _, 38.953, 38.956, 38.727, 38.916, 39.065, _, _, _, _, _, 38.77, • Commentaire : un calcul de pression à partir de DEPH/TEMP/PSAL = 100.7064 dbar à 100 m de profondeur

  5. PRES vs DEPH TEMP = _, 16.944, 17.061, 17.08, 16.992, 16.046, _, _, _, _, _, 13.846, _, 16.905, 16.963, 16.968, 16.235, 16.039, _, _, _, _, _, 13.846, _, 16.878, 16.924, 16.919, 16.133, 15.973, _, _, _, _, _, 13.846, _, 16.905, 16.909, 16.919, 16.367, 15.929, _, _, _, _, _, 13.846, _, 16.925, 16.924, 16.924, 16.665, 16.138, _, _, _, _, _, 13.846, _, 16.931, 16.938, 16.938, 16.919, 16.196, _, _, _, _, _, 13.846, _, 16.925, 16.958, 16.953, 16.938, 16.116, _, _, _, _, _, 13.839, _, 16.931, 16.943, 16.963, 16.836, 16.097, _, _, _, _, _, 13.841 ; TEMP_QC = 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 1, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 1, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 1, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 1, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 1 ; PSAL = _, 38.796, 38.736, 38.834, 38.898, 38.969, _, _, _, _, _, 38.775, _, 38.782, 38.731, 38.825, 38.945, 38.983, _, _, _, _, _, 38.775, _, 38.787, 38.73, 38.827, 38.97, 39.019, _, _, _, _, _, 38.776, _, 38.794, 38.727, 38.822, 38.929, 38.976, _, _, _, _, _, 38.775, _, 38.794, 38.726, 38.822, 38.898, 38.951, _, _, _, _, _, 38.776, _, 38.796, 38.726, 38.822, 38.86, 38.931, _, _, _, _, _, 38.776, _, 38.789, 38.729, 38.822, 38.86, 38.953, _, _, _, _, _, 38.775, _, 38.799, 38.727, 38.822, 38.857, 38.954, _, _, _, _, _, 38.775 ; PSAL_QC = 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 3, 1, 1, 9, 9, 9, 9, 9, 3, 0, 1, 1, 3, 1, 1, 9, 9, 9, 9, 9, 3 ; ATMS = 996.406, _, _, _, _, _, _, _, _, _, _, _, 996.858, _, _, _, _, _, _, _, _, _, _, _, 997.942, _, _, _, _, _, _, _, _, _, _, _, 1001.013, _, _, _, _, _, _, _, _, _, _, _, 1001.736, _, _, _, _, _, _, _, _, _, _, _, 1004.175, _, _, _, _, _, _, _, _, _, _, _, 1006.523, _, _, _, _, _, _, _, _, _, _, _, 1008.42, _, _, _, _, _, _, _, _, _, _, _ ; netcdf MO_LATEST_TS_MO_68422_20120107 { data: TIME = 22651, 22651.125, 22651.25, 22651.375, 22651.5, 22651.625, 22651.75, 22651.875 ; TIME_QC = 1, 1, 1, 1, 1, 1, 1, 1 ; DEPH = 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673, 0, 1, 20, 50, 75, 100, 250, 400, 500, 600, 1000, 1673 ; DEPH_QC = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ; LATITUDE = 36.829 ; LONGITUDE = 21.608 ; POSITION_QC = 1 ; GPS_LATITUDE = 36.8262, 36.8262, 36.8262, 36.8188, 36.8188, 36.8286, 36.8262, 36.8164 ; GPS_LONGITUDE = 21.6089, 21.6064, 21.6016, 21.604, 21.5991, 21.5942, 21.5942, 21.5967 ; PRES = _, _, _, _, _, 106.46, _, _, _, _, _, _, _, _, _, _, _, 107.28, _, _, _, _, _, _, _, _, _, _, _, 109.46, _, _, _, _, _, _, _, _, _, _, _, 109.67, _, _, _, _, _, _, _, _, _, _, _, 110.56, _, _, _, _, _, _, _, _, _, _, _, 109.33, _, _, _, _, _, _, _, _, _, _, _, 108.51, _, _, _, _, _, _, _, _, _, _, _, 109.26, _, _, _, _, _, _ ; PRES_QC = 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0, 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0, 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0, 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0, 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0, 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0, 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0, 0, 0, 9, 9, 9, 1, 9, 0, 0, 0, 0, 0 ; (toutes les 3 heures) CUSP:long_name = "CURRENT SPEED" ; SCDT:long_name = "SEA SURF CURRENT DIR. REL T. N" ; DOX1:long_name = "DISSOLVED OXYGEN" ; CPH1:long_name = "CHLOROPHYLL-A TOTAL" ; ATMS:long_name = "atmospheric pressure atsealevel" ; DRYT:long_name = "DRY BULB TEMPERATURE" ; WSPD:long_name = "HORIZONTAL WIND SPEED" GSPD:long_name = "GUST WIND SPEED" ; WDIR:long_name = "WIND DIRECTION REL. TRUE NORTH" ; VTZA:long_name = "AVER ZERO CROSSING WAVE PERIOD" ; VTDH:long_name = "SIGNIFICANT WAVE HEIGHT" ; VDIR:long_name = "WAVE DIRECTION REL. TRUE NORTH" ;

  6. Questions sur les données qui ne possèdent pas d’indication de profondeur – DB, TSG, NIVA MYO-GO-01,ftp://eftp.ifremer.fr/data/latest/20120102/GO_LATEST_TS_FB_NIVA.TF_20120102.nc,69.9803,70.2421,23.1087,70.2421,2012-01-02T00:00:47Z,2012-01-02T08:15:00Z,NIVA,2012-01-02T12:20:01Z,R,TEMP DOXY FLUO PSAL netcdf GO_LATEST_TS_FB_NIVA.TF_20120102 { dimensions: LATITUDE = 494 ; POSITION = 494 ; DEPTH = 1 ; LONGITUDE = 494 ; TIME = 494 ; data: DEPTH = 5 ;  mais pas dans le fichier index TEMP = 15.038, 15.036, 15.035, 15.033, 15.031, 15.03, 15.028, 15.027, PSAL = 31.16, 31.16, 31.161, 31.161, 31.162, 31.162, 31.162, 31.163, MYO-GLOBAL-01,ftp://eftp.ifremer.fr/data/latest/20120106/GL_LATEST_TS_TS_5BAD2_20120106.nc,-19.5167,-19.5167,-158.867,-158.867,2012-01-06T18:00:00Z,2012-01-06T18:00:00Z,IRD BREST,2012-01-07T03:07:40Z,R,CO06 PSAL netcdf GL_LATEST_TS_TS_5BAD2_20120106 { dimensions: TIME = UNLIMITED ; // (1 currently) DEPTH = 1 ; LATITUDE = 1 ; LONGITUDE = 1 ; POSITION = 1 ; data: DEPTH = _ ; DEPTH_QC = _ ; PSAL = 35.68 ; PSAL_QC = 1 ; CO06 = 29 ; CO06_QC = 0 ; CO06:long_name = "temperaturefromtsg" ; - température de la cuve  biais à prendre en compte avant assimilation – trop compliqué pour le temps réel MYO-GLOBAL-01,ftp://eftp.ifremer.fr/data/latest/20111218/GL_LATEST_TS_TS_FMCY_20111218.nc,-6.48887,-6.442,6.02135,6.03698,2011-12-18T00:04:28Z,2011-12-18T23:58:57Z,SHOM,2011-12-20T02:55:45Z,R,PSAL CO06 CNDC TEMP CNDC: sea_water_electrical_conductivity TEMP: sea water temperature – température de la prise d’eau – ok à assimiler dans Mercator MYO-GLOBAL-01,ftp://eftp.ifremer.fr/data/latest/20120108/GL_LATEST_TS_DB_14551_20120108.nc,9.573,9.715,87.791,87.898,2012-01-08T01:25:00Z,2012-01-08T21:56:00Z,UNKNOWN INSTITUTION,2012-01-09T04:13:57Z,R,TEMP netcdf GL_LATEST_TS_DB_14551_20120108 { dimensions: TIME = UNLIMITED ; // (21 currently) DEPTH = 1 ; LATITUDE = 21 ; LONGITUDE = 21 ; POSITION = 21 ; data: DEPTH = _ ; DEPTH_QC = _ ; TEMP = 28.2, 28.2, 28.2, 28.3, 28.4, 28.4, MYO-GLOBAL-01,ftp://eftp.ifremer.fr/data/latest/20120108/GL_LATEST_TS_DB_13983_20120108.nc,31.888,31.961,-35.382,-35.332,2012-01-08T06:23:00Z,2012-01-08T11:22:00Z,UNKNOWN INSTITUTION,2012-01-08T19:39:11Z,R,DEPH TEMP PSAL netcdf GL_LATEST_TS_DB_13983_20120108 { dimensions: TIME = UNLIMITED ; // (10 currently) DEPTH = 2 ; LATITUDE = 10 ; LONGITUDE = 10 ; POSITION = 10 ; data: DEPTH = _, 0 ; DEPTH_QC = _, 1 ; DEPH = _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0, _, 0 ; DEPH_QC = _, 1, _, 1, _, 1, _, 1, _, 1, _, 1, _, 1, _, 1, _, 1, _, 1 ; TEMP = 21.5, 21.49, 21.5, 21.51, 21.5, 21.49, 21.5, 21.51, 21.5, 21.51, 21.5, 21.51, 21.5, 21.51, 21.5, 21.5, 21.5, 21.5, 21.5, 21.49 ; TEMP_QC = 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ; PSAL = _, 37.02, _, 37.01, _, 37.01, _, 37.02, _, 37.03, _, 37.02, _, 37.01, _, 37.03, _, 37.02, _, 37.02 ; PSAL_QC = _, 4, _, 4, _, 4, _, 4, _, 4, _, 4, _, 4, _, 4, _, 4, _, 4 ; MYO-GLOBAL-01,ftp://eftp.ifremer.fr/data/latest/20120108/GL_LATEST_TS_DB_11908_20120108.nc,13.397,13.457,59.633,59.69,2012-01-08T00:50:00Z,2012-01-08T23:50:00Z,UNKNOWN INSTITUTION,2012-01-09T18:14:27Z,R,TEMP ATMP ATPT ATMS netcdf GL_LATEST_TS_DB_11908_20120108 { dimensions: TIME = UNLIMITED ; // (24 currently) DEPTH = 1 ; LATITUDE = 24 ; LONGITUDE = 24 ; POSITION = 24 ; data: DEPTH = _ ; DEPTH_QC = _ ; TEMP = 26.2, 26.2, 26.2, 26.2, 26.2, TEMP_QC = 1, 1, 1, 1,

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