netcdf classic (CDF-1) {
dimensions:
	time = UNLIMITED ; // (1397 currently)
// global attributes:
		:command_line = "sonde_ingest -s nsa -f C1" ;
		:process_version = "ingest-sonde-10.11-0.el5" ;
		:ingest_software = "ingest-sonde-10.11-0.el5" ;
		:dod_version = "sondewnpn-b1-2.0" ;
		:site_id = "nsa" ;
		:facility_id = "C1: Barrow, Alaska" ;
		:data_level = "b1" ;
		:input_source = "/data/collection/nsa/nsasondeC1.00/good.2015JAN290530.parsed" ;
		:resolution_description = (text block) ;
| The resolution field attributes refer to the number of significant digits relative to the decimal point that should be used in calculations. Using fewer digits might result in greater uncertainty. Using a larger number of digits should have no effect and thus is unnecessary. However, analyses based on differences in values with a larger number of significant digits than indicated could lead to erroneous results or misleading scientific conclusions.
| 
| resolution for lat = 0.001
| resolution for lon = 0.001
| resolution for alt = 1
		:sample_int = "1.2 seconds" ;
		:averaging_int = "None" ;
		:phase_fitting_1 = "" ;
		:phase_fitting_2 = "" ;
		:phase_fitting_3 = "" ;
		:pressure_correction = "1.4" ;
		:temperature_correction = "-0.3" ;
		:humidity_correction = "-0.2" ;
		:humidity_correction_2 = "-0.2" ;
		:launch_mode = "nominal mode" ;
		:launch_status = (text block) ;
| -9999  NSAC1/MW31
| 470027
| 150129 0530
|  K2913239 RS92-SGP
| 135 526 518 -22
| 100
| 100 000 000
| 100 000 000
| 100 000 000
| /// /// ///
| 279 005 176
| 100 100 000
| 000 000 000
| 11.9778 11.982
| 000 000 000
		:pressure_gc_sonde = "1006.2" ;
		:temperature_gc_sonde = "23.3" ;
		:humidity_gc_sonde = "0.2" ;
		:humidity_gc_sonde_2 = "0.2" ;
		: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 = "3.62" ;
		:sounding_number = "-9999" ;
		:serial_number = "K2913239" ;
		:qc_standards_version = "1.0" ;
		:qc_method = "Standard Mentor QC" ;
		:qc_comment = (text block) ;
| The QC field values are a bit packed representation of true/false values for the tests that may have been performed. A QC value of zero means that none of the tests performed on the value failed.
| 
| The QC field values make use of the internal binary format to store the results of the individual QC tests. This allows the representation of multiple QC states in a single value. If the test associated with a particular bit fails the bit is turned on. Turning on the bit equates to adding the integer value of the failed test to the current value of the field. The QC field's value can be interpreted by applying bit logic using bitwise operators, or by examining the QC value's integer representation. A QC field's integer representation is the sum of the individual integer values of the failed tests. The bit and integer equivalents for the first 5 bits are listed below:
| 
| bit_1 = 00000001 = 0x01 = 2^0 = 1
| bit_2 = 00000010 = 0x02 = 2^1 = 2
| bit_3 = 00000100 = 0x04 = 2^2 = 4
| bit_4 = 00001000 = 0x08 = 2^3 = 8
| bit_5 = 00010000 = 0x10 = 2^4 = 16
		:qc_bit_1_description = "Value is equal to missing_value." ;
		:qc_bit_1_assessment = "Bad" ;
		:qc_bit_2_description = "Value is less than the valid_min." ;
		:qc_bit_2_assessment = "Bad" ;
		:qc_bit_3_description = "Value is greater than the valid_max." ;
		:qc_bit_3_assessment = "Bad" ;
		:qc_bit_4_description = "Difference between current and previous values exceeds valid_delta." ;
		:qc_bit_4_assessment = "Indeterminate" ;
		:zeb_platform = "nsasondewnpnC1.b1" ;
		:history = "created by user dsmgr on machine tin at 2015-01-29 07:48:01, using ingest-sonde-10.11-0.el5" ;
variables:
	int base_time ;
		base_time:string = "2015-01-29 00:00:00 0:00" ;
		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 2015-01-29 00:00:00 0:00" ;
	double time(time) ;
		time:long_name = "Time offset from midnight" ;
		time:units = "seconds since 2015-01-29 00:00:00 0:00" ;
	int qc_time(time) ;
		qc_time:long_name = "Quality check results on field: Time offset from midnight" ;
		qc_time:units = "unitless" ;
		qc_time:description = "This field contains bit packed values which should be interpreted as listed. No bits set (zero) represents good data." ;
		qc_time:bit_1_description = "Delta time between current and previous samples is zero." ;
		qc_time:bit_1_assessment = "Indeterminate" ;
		qc_time:bit_2_description = "Delta time between current and previous samples is less than the delta_t_lower_limit field attribute." ;
		qc_time:bit_2_assessment = "Indeterminate" ;
		qc_time:bit_3_description = "Delta time between current and previous samples is greater than the delta_t_upper_limit field attribute." ;
		qc_time:bit_3_assessment = "Indeterminate" ;
		qc_time:delta_t_lower_limit = 2.0 ;
		qc_time:delta_t_upper_limit = 2.0 ;
		qc_time:prior_sample_flag = 0 ;
		qc_time:comment = "If the 'prior_sample_flag' is set the first sample time from a new raw file will be compared against the time just previous to it in the stored data. If it is not set the qc_time value for the first sample will be set to 0." ;
	float pres(time) ;
		pres:long_name = "Pressure" ;
		pres:units = "hPa" ;
		pres:valid_min = 0.0 ;
		pres:valid_max = 1100.0 ;
		pres:valid_delta = 10.0 ;
		pres:resolution = 0.100000001 ;
		pres:missing_value = -9999.0 ;
	int qc_pres(time) ;
		qc_pres:long_name = "Quality check results on field: Pressure" ;
		qc_pres:units = "unitless" ;
		qc_pres:description = "See global attributes for individual bit descriptions." ;
	float tdry(time) ;
		tdry:long_name = "Dry Bulb Temperature" ;
		tdry:units = "C" ;
		tdry:valid_min = -90.0 ;
		tdry:valid_max = 50.0 ;
		tdry:valid_delta = 10.0 ;
		tdry:resolution = 0.100000001 ;
		tdry:missing_value = -9999.0 ;
	int qc_tdry(time) ;
		qc_tdry:long_name = "Quality check results on field: Dry Bulb Temperature" ;
		qc_tdry:units = "unitless" ;
		qc_tdry:description = "See global attributes for individual bit descriptions." ;
	float dp(time) ;
		dp:long_name = "Dewpoint Temperature" ;
		dp:units = "C" ;
		dp:valid_min = -110.0 ;
		dp:valid_max = 50.0 ;
		dp:resolution = 0.100000001 ;
		dp:missing_value = -9999.0 ;
	int qc_dp(time) ;
		qc_dp:long_name = "Quality check results on field: Dewpoint Temperature" ;
		qc_dp:units = "unitless" ;
		qc_dp:description = "See global attributes for individual bit descriptions." ;
	float wspd(time) ;
		wspd:long_name = "Wind Speed" ;
		wspd:units = "m/s" ;
		wspd:valid_min = 0.0 ;
		wspd:valid_max = 100.0 ;
		wspd:resolution = 0.100000001 ;
		wspd:missing_value = -9999.0 ;
	int qc_wspd(time) ;
		qc_wspd:long_name = "Quality check results on field: Wind Speed" ;
		qc_wspd:units = "unitless" ;
		qc_wspd:description = "See global attributes for individual bit descriptions." ;
	float deg(time) ;
		deg:long_name = "Wind Direction" ;
		deg:units = "deg" ;
		deg:valid_min = 0.0 ;
		deg:valid_max = 360.0 ;
		deg:resolution = 1.0 ;
		deg:missing_value = -9999.0 ;
	int qc_deg(time) ;
		qc_deg:long_name = "Quality check results on field: Wind Direction" ;
		qc_deg:units = "unitless" ;
		qc_deg:description = "See global attributes for individual bit descriptions." ;
	float rh(time) ;
		rh:long_name = "Relative Humidity" ;
		rh:units = "%" ;
		rh:valid_min = 0.0 ;
		rh:valid_max = 100.0 ;
		rh:resolution = 1.0 ;
		rh:missing_value = -9999.0 ;
	int qc_rh(time) ;
		qc_rh:long_name = "Quality check results on field: Relative Humidity" ;
		qc_rh:units = "unitless" ;
		qc_rh:description = "See global attributes for individual bit descriptions." ;
	float u_wind(time) ;
		u_wind:long_name = "Eastward Wind Component" ;
		u_wind:units = "m/s" ;
		u_wind:valid_min = -75.0 ;
		u_wind:valid_max = 75.0 ;
		u_wind:resolution = 0.100000001 ;
		u_wind:missing_value = -9999.0 ;
		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" ;
		qc_u_wind:description = "See global attributes for individual bit descriptions." ;
	float v_wind(time) ;
		v_wind:long_name = "Northward Wind Component" ;
		v_wind:units = "m/s" ;
		v_wind:valid_min = -75.0 ;
		v_wind:valid_max = 75.0 ;
		v_wind:valid_delta = 5.0 ;
		v_wind:resolution = 0.100000001 ;
		v_wind:missing_value = -9999.0 ;
		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" ;
		qc_v_wind:description = "See global attributes for individual bit descriptions." ;
	float wstat(time) ;
		wstat:long_name = "Wind Status" ;
		wstat:units = "unitless" ;
		wstat:missing_value = -9999.0 ;
	float asc(time) ;
		asc:long_name = "Ascent Rate" ;
		asc:units = "m/s" ;
		asc:valid_min = -10.0 ;
		asc:valid_max = 20.0 ;
		asc:valid_delta = 5.0 ;
		asc:resolution = 0.100000001 ;
		asc:missing_value = -9999.0 ;
	int qc_asc(time) ;
		qc_asc:long_name = "Quality check results on field: Ascent Rate" ;
		qc_asc:units = "unitless" ;
		qc_asc:description = "See global attributes for individual bit descriptions." ;
	float lat(time) ;
		lat:long_name = "North latitude" ;
		lat:units = "degree_N" ;
		lat:valid_min = -90.0 ;
		lat:valid_max = 90.0 ;
	float lon(time) ;
		lon:long_name = "East longitude" ;
		lon:units = "degree_E" ;
		lon:valid_min = -180.0 ;
		lon:valid_max = 180.0 ;
	float alt(time) ;
		alt:long_name = "Altitude above mean sea level" ;
		alt:units = "m" ;
// time: first 19800.0, last 22592.0, count 1397
}