Catalog of Learjet Dropsonde Data Collected During CEPEX Oct. 5, 1993 John del Corral,SIO Temporal Span: March 4, 1993 - April 6, 1993 GMT Number of files: 113 File List: x3160400.cxb.cdf x3252338.cxa.cdf x3310536.cxb.cdf x3040234.cxa.cdf x3160425.cxa.cdf x3260016.cxb.cdf x3310602.cxa.cdf x3040234.cxb.cdf x3160707.cxb.cdf x3260037.cxa.cdf x4012154.cxa.cdf x3080031.cxa.cdf x3160758.cxb.cdf x3260059.cxb.cdf x4012222.cxb.cdf x3080050.cxb.cdf x3180003.cxb.cdf x3260401.cxb.cdf x4012237.cxa.cdf x3080120.cxa.cdf x3180018.cxb.cdf x3260425.cxa.cdf x4032220.cxa.cdf x3080150.cxb.cdf x3180031.cxa.cdf x3260446.cxb.cdf x4032245.cxa.cdf x3080220.cxa.cdf x3180101.cxa.cdf x3260508.cxa.cdf x4032245.cxa.cdf.orig x3080247.cxb.cdf x3180129.cxb.cdf x3282311.cxb.cdf x4032324.cxa.cdf x3110232.cxb.cdf x3180159.cxb.cdf x3282311.cxb.cdf.orig x4032357.cxa.cdf x3110252.cxa.cdf x3180229.cxa.cdf x3282335.cxa.cdf x4040332.cxa.cdf x3110322.cxb.cdf x3180247.cxa.cdf x3290000.cxb.cdf x4050033.cxa.cdf x3110352.cxa.cdf x3202328.cxb.cdf x3290032.cxa.cdf x4050053.cxb.cdf x3110422.cxb.cdf x3210004.cxb.cdf x3290057.cxb.cdf x4052022.cxb.cdf x3120034.cxb.cdf x3210022.cxb.cdf x3290057.cxb.cdf.orig x4052051.cxb.cdf x3120104.cxa.cdf x3210052.cxa.cdf x3290123.cxa.cdf x4052122.cxa.cdf x3120135.cxb.cdf x3210117.cxb.cdf x3290147.cxb.cdf x4052153.cxa.cdf x3120204.cxa.cdf x3210138.cxa.cdf x3290147.cxb.cdf.orig x4052203.cxb.cdf x3120235.cxb.cdf x3210357.cxb.cdf x3290215.cxa.cdf x4060124.cxb.cdf x3142240.cxb.cdf x3210416.cxa.cdf x3290504.cxb.cdf x4060154.cxa.cdf x3142250.cxa.cdf x3210440.cxb.cdf x3290504.cxb.cdf.orig x4060224.cxb.cdf x3142310.cxb.cdf x3232329.cxb.cdf x3290529.cxa.cdf x4060245.cxa.cdf x3142323.cxa.cdf x3232359.cxa.cdf x3290557.cxb.cdf x4060303.cxb.cdf x3142341.cxb.cdf x3240031.cxb.cdf x3310043.cxa.cdf x4060327.cxa.cdf x3150011.cxa.cdf x3240235.cxa.cdf x3310059.cxb.cdf x4060353.cxb.cdf x3160237.cxb.cdf x3240306.cxb.cdf x3310119.cxa.cdf x4060418.cxa.cdf x3160301.cxa.cdf x3240334.cxb.cdf x3310438.cxa.cdf x4060429.cxb.cdf x3160311.cxb.cdf x3250606.cxa.cdf x3310511.cxa.cdf x3160334.cxa.cdf x3252303.cxb.cdf x3310511.cxa.cdf.orig File coverage: GMT hour 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 March 4 XX 5 6 7 8 XX XX XX 9 10 11 XX XX 12 X XX XX 13 14 XX XX 15 X 16 X XXXXX XX 17 18 XXXXXXXX 19 20 X 21 XXXXX X XX 22 23 XX 24 X X XX 25 X XX 26 XXX XXXX 27 28 XXX 29 XXXXX X XXX 30 31 XX X X XX X April 1 X XX 2 3 XX XX 4 X 5 XX XX XX X 6 XX XX X 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Data File Format: NetCDF Filename description: xMDDHHMM.cxa(b).cdf - Where M is month of 1993, DD is day, HH is hours, MM is minutes GMT. There were two types of dropsondes, cxa and cxb. 'cdf' is the standard NetCDF file extension used for CEPEX data processed at SIO. Quality Control: Six dropsonde files had bad data due to transmission problems. These are indicated with a filename extension of '.orig'. Steve Sherwood, SIO has removed the bad points in the '.cdf' files. Both copies are included in this dataset. Example Header: netcdf x3180031.cxa { dimensions: time = UNLIMITED ; // (106 currently) variables: double llon ; llon:descrip = "Launch longitude" ; llon:units = "degrees" ; double llat ; llat:descrip = "Launch latitude" ; llat:units = "degrees" ; double lalt ; lalt:descrip = "Launch altitude" ; lalt:units = "feet" ; double lidate ; lidate:descrip = "Launch date" ; lidate:units = "year/month/day" ; double ltime ; ltime:descrip = "Launch time (after midnight)" ; ltime:units = "seconds" ; double time(time) ; time:descrip = "Time" ; time:units = "seconds" ; double press(time) ; press:descrip = "Pressure" ; press:units = "millibar" ; double T(time) ; T:descrip = "Temperatue" ; T:units = "Celsius" ; double TD(time) ; TD:descrip = "Dewpoint temperature" ; TD:units = "Celsius" ; double RH(time) ; RH:descrip = "Relative humidity" ; RH:units = "percent" ; RH:valid_range = 0., 100. ; double u(time) ; u:descrip = "Eastward wind speed component" ; u:units = "meters/second" ; double v(time) ; v:descrip = "Northward wind speed component" ; v:units = "meters/second" ; double SPD(time) ; SPD:descrip = "Wind speed" ; SPD:units = "meters/second" ; double DIR(time) ; DIR:descrip = "Wind direction" ; DIR:units = "degrees" ; double dz(time) ; dz:descrip = "Upward wind speed" ; dz:units = "meters/second" ; double lon(time) ; lon:descrip = "Longitude" ; lon:units = "degrees" ; double lat(time) ; lat:descrip = "Latitude" ; lat:units = "degrees" ; double rng(time) ; rng:descrip = "Range" ; rng:units = "kilometers" ; double ang(time) ; ang:descrip = "Angle" ; ang:units = "degrees" ; double alt(time) ; alt:descrip = "Altitude" ; alt:units = "meters" ; double qp(time) ; qp:descrip = "Pressure flag" ; qp:units = "millibar" ; double qt(time) ; qt:descrip = "Temperature flag" ; qt:units = "Celsius" ; double qh(time) ; qh:descrip = "Relative humidity flag" ; qh:units = "percent" ; double qu(time) ; qu:descrip = "Easterly wind speed component flag" ; qu:units = "meters/second" ; double qv(time) ; qv:descrip = "Northerly wind speed component flag" ; qv:units = "meters/second" ; double quv(time) ; quv:descrip = "Wind speed flag" ; quv:units = "meters/second" ; // global attributes: :title = "Sonde netCDF file" ; :history = "Version 1.5. NetCDF test file. Including launch information" ; :header from data file = "Data Type: L2D2/LOD2 10 SECOND DATA\n", "Project ID: CEPEX -- AEROMET LEARJET (LOD2 \"A\")\n", "Aircraft Type/Aircraft ID: LEARJET - MODEL 36, CXA\n", "Launch Location (lon,lat,alt): 178 24.40\'E, 12 12.60\'S, -178.40667, -12.21, 7746.5\n", "GMT Launch Time (y,m,d,h,m,s): 1993, 03, 18, 00:31:58\n", "Sonde Type/ID/Sensor ID/Tx Freq: NCAR LOD2 (OMEGA) 277, 479, 400.525\n", "Met Processor/Met Smoothing: NCAR PTH PROCESSOR, 0 SECONDS\n", "Winds Type/Processor/Smoothing: OMEGA, TRIMBLE MINI-OMEGA, 240 SECONDS\n", "Pre-launch Met Obs Source: AEROMET ADAS\n", "System Operator/Comments: D. RUSK, (REPROCESSED),THIRD DROP OF 3/17/93 - FIRST SUCCESSFUL ONE\n", "/\n", "/\n", " Time Press Temp Dewpt RH Uwind Vwind Wspd Dir dZ Lon Lat Rng Ang Alt Qp Qt Qh Qu Qv Quv\n", " sec mb C C % m/s m/s m/s deg m/s deg deg km deg m mb C % m/s m/s m/s\n", "------ ------ ----- ----- ----- ------ ------ ----- ----- ----- -------- ------- ----- ----- ------- ---- ---- ---- ---- ---- ----\n", "" ; }