netcdf sgpsondewnpnB1.b1.20070617.233000 { dimensions: time = UNLIMITED ; // (2794 currently) variables: int base_time ; base_time:string = "17-Jun-2007,23:30:00 GMT" ; base_time:long_name = "Base time in Epoch" ; base_time:units = "seconds since 1970-1-1 0:00:00 0:00" ; double time_offset(time) ; time_offset:long_name = "Time offset from base_time" ; time_offset:units = "seconds since 2007-06-17 23:30:00 0:00" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2007-06-17 00:00:00 0:00" ; int qc_time(time) ; qc_time:long_name = "Results of quality checks on sample time" ; qc_time:units = "unitless" ; qc_time:description = "The qc_time values are calculated by comparing each sample\n", "time with the previous time (i.e. delta_t = t[n] - t[n-1]).\n", "If the \'qc_check_prior\' flag is set the first sample time\n", "from a new raw file will be compared against the time just\n", "previous to it in the stored data. If the \'qc_check_prior\'\n", "flag is not set the qc_time value for the first sample time\n", "will be set to 0\n", "\n", "The qc_time bit values are as follows:\n", "=========================================================\n", "0x0 = delta time is within the specified range\n", "0x1 = delta time is equal to 0, duplicate sample times\n", "0x2 = delta time is less than the \'delta_t_lower_limit\'\n", "0x4 = delta time is greater than the \'delta_t_upper_limit\'\n", "\n", "" ; qc_time:delta_t_lower_limit = 2 ; qc_time:delta_t_upper_limit = 2 ; qc_time:prior_sample_flag = 0 ; float pres(time) ; pres:long_name = "Pressure" ; pres:units = "hPa" ; pres:valid_min = 0.f ; pres:valid_max = 1100.f ; pres:valid_delta = 10.f ; pres:resolution = 0.1f ; pres:missing_value = -9999.f ; int qc_pres(time) ; qc_pres:long_name = "Quality check results on field: Pressure" ; qc_pres:units = "unitless" ; float tdry(time) ; tdry:long_name = "Dry Bulb Temperature" ; tdry:units = "C" ; tdry:valid_min = -90.f ; tdry:valid_max = 50.f ; tdry:valid_delta = 10.f ; tdry:resolution = 0.1f ; tdry:missing_value = -9999.f ; int qc_tdry(time) ; qc_tdry:long_name = "Quality check results on field: Dry Bulb Temperature" ; qc_tdry:units = "unitless" ; float dp(time) ; dp:long_name = "Dewpoint Temperature" ; dp:units = "C" ; dp:valid_min = -110.f ; dp:valid_max = 50.f ; dp:resolution = 0.1f ; dp:missing_value = -9999.f ; int qc_dp(time) ; qc_dp:long_name = "Quality check results on field: Dewpoint Temperature" ; qc_dp:units = "unitless" ; float wspd(time) ; wspd:long_name = "Wind Speed" ; wspd:units = "m/s" ; wspd:valid_min = 0.f ; wspd:valid_max = 100.f ; wspd:resolution = 0.1f ; wspd:missing_value = -9999.f ; int qc_wspd(time) ; qc_wspd:long_name = "Quality check results on field: Wind Speed" ; qc_wspd:units = "unitless" ; float deg(time) ; deg:long_name = "Wind Direction" ; deg:units = "deg" ; deg:valid_min = 0.f ; deg:valid_max = 360.f ; deg:resolution = 1.f ; deg:missing_value = -9999.f ; int qc_deg(time) ; qc_deg:long_name = "Quality check results on field: Wind Direction" ; qc_deg:units = "unitless" ; float rh(time) ; rh:long_name = "Relative Humidity" ; rh:units = "%" ; rh:valid_min = 0.f ; rh:valid_max = 100.f ; rh:resolution = 1.f ; rh:missing_value = -9999.f ; int qc_rh(time) ; qc_rh:long_name = "Quality check results on field: Relative Humidity" ; qc_rh:units = "unitless" ; float u_wind(time) ; u_wind:long_name = "Eastward Wind Component" ; u_wind:units = "m/s" ; u_wind:valid_min = -75.f ; u_wind:valid_max = 75.f ; u_wind:resolution = 0.1f ; u_wind:missing_value = -9999.f ; u_wind:Calculation = "(-1.0 * sin(wind direction) * wind speed)" ; int qc_u_wind(time) ; qc_u_wind:long_name = "Quality check results on field: Eastward Wind Component" ; qc_u_wind:units = "unitless" ; float v_wind(time) ; v_wind:long_name = "Northward Wind Component" ; v_wind:units = "m/s" ; v_wind:valid_min = -75.f ; v_wind:valid_max = 75.f ; v_wind:valid_delta = 5.f ; v_wind:resolution = 0.1f ; v_wind:missing_value = -9999.f ; v_wind:Calculation = "(-1.0 * cos(wind direction) * wind speed)" ; int qc_v_wind(time) ; qc_v_wind:long_name = "Quality check results on field: Northward Wind Component" ; qc_v_wind:units = "unitless" ; float wstat(time) ; wstat:long_name = "Wind Status" ; wstat:units = "unitless" ; wstat:missing_value = -9999.f ; float asc(time) ; asc:long_name = "Ascent Rate" ; asc:units = "m/s" ; asc:valid_min = -10.f ; asc:valid_max = 20.f ; asc:valid_delta = 5.f ; asc:resolution = 0.1f ; asc:missing_value = -9999.f ; int qc_asc(time) ; qc_asc:long_name = "Quality check results on field: Ascent Rate" ; qc_asc:units = "unitless" ; float lat(time) ; lat:long_name = "north latitude" ; lat:units = "degrees" ; lat:valid_min = -90.f ; lat:valid_max = 90.f ; float lon(time) ; lon:long_name = "east longitude" ; lon:units = "degrees" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; float alt(time) ; alt:long_name = "altitude" ; alt:units = "meters above Mean Sea Level" ; // global attributes: :ingest_version = "process-ingest-sonde_ingest-8.1-0" ; :libingest_version = "ds-dsutil-ingest_lib-1.7-0" ; :libdslibc_version = "ds-dslib-c_lib-1.2-0" ; :libdsdb_version = "database-dsdb-c_lib-1.2-0" ; :ingest_software = " sonde_ingest.c,v 5.19 2006/09/28 00:59:27 ermold process-ingest-sonde_ingest-8.1-0 $" ; :proc_level = "b1" ; :input_source = "/data/collection/sgp/sgpsondeB1.00/good.2007JUN172330.parsed" ; :site_id = "sgp" ; :facility_id = "B1: Hillsboro, Kansas" ; :sample_int = "Not Specified" ; :averaging_int = "None" ; :comment = "The time assigned to each data point indicates the end of any period of averaging of the geophysical data." ; :resolution_description = "The resolution field attributes refer to the number of significant\n", "digits relative to the decimal point that should be used in\n", "calculations. Using fewer digits might result in greater uncertainty;\n", "using a larger number of digits should have no effect and thus is\n", "unnecessary. However, analyses based on differences in values with\n", "a larger number of significant digits than indicated could lead to\n", "erroneous results or misleading scientific conclusions.\n", "\n", "resolution for lat= 0.001\n", "resolution for lon = 0.001\n", "resolution for alt = 1" ; :phase_fitting_1 = "" ; :phase_fitting_2 = "" ; :phase_fitting_3 = "" ; :pressure_correction = "" ; :temperature_correction = "" ; :humidity_correction = "" ; :launch_mode = "Nominal Mode" ; :pressure_gc_sonde = "" ; :temperature_gc_sonde = "" ; :humidity_gc_sonde = "" ; :latitude_calculation = "lat[k-1]+((v_wind[k]-v_wind[k-1])/2)*delta_time)/111137.0" ; :longitude_calculation = "lon[k-1]+((u_wind[k]-u_wind[k-1])/2)*delta_time)/(111137.0*(cos(0.5*lat[k]-lat[k-1)))) " ; :sonde_pc_software_version = "8.35" ; :sounding_number = "110618071" ; :serial_number = "C1040485" ; :launch_status = "\n", "110618071 SGP/CART/HILLSBORO1\r\n", "74547\r\n", "070617 2330\r\n", " C1040485\r\n", "/// /// ///\r\n", "096\r\n", "089 006 005\r\n", "095 000 005\r\n", "094 002 005\r\n", "005 005 005\r\n", "559 005 119\r\n", "100 099 041\r\n", "098 000 000\r\n", "099 000\r\n", "000 099 000\r\n", "\n", "" ; :qc_method = "Standard Mentor QC" ; :Mentor_QC_Field_Information = "For each qc_ interpret the values as follows:\n", "\n", "Basic mentor QC checks (bit values):\n", "==========================================\n", "0x0 = value is within the specified range\n", "0x1 = value is equal to \'missing_value\'\n", "0x2 = value is less than the \'valid_min\'\n", "0x4 = value is greater than the \'valid_max\'\n", "0x8 = value failed the \'valid_delta\' check\n", "\n", "If the value is a \'missing_value\' no min, max, or delta checks are performed.\n", "\n", "The delta checks are done by comparing each data value to the one just\n", "prior to it in time. If a previous data value does not exist or is a\n", "\'missing_value\' the delta check will not be performed.\n", "\n", "Note that the delta computation for multi-dimensioned data compares the\n", "absolute value between points in the same spatial location to the previous\n", "point in time.\n", "\n", "If the associated non-QC field does not contain any mentor-specified minimum,\n", "maximum, or delta information a qc_field is not generated.\n", "" ; :zeb_platform = "sgpsondewnpnB1.b1" ; :history = "created by user dsmgr on machine opal at 22-Apr-2008,20:11:52, using $State: ds-zebra-zeblib-4.16-0 $" ; }