netcdf sgpaafmopcU3.a1.20211116.132911 {
dimensions:
	time = UNLIMITED ; // (5521 currently)
	bin = 84 ;
	bound = 2 ;
variables:
	int base_time ;
		base_time:string = "2021-11-16 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" ;
		base_time:ancillary_variables = "time_offset" ;
	double time_offset(time) ;
		time_offset:long_name = "Time offset from base_time" ;
		time_offset:units = "seconds since 2021-11-16 00:00:00 0:00" ;
		time_offset:ancillary_variables = "base_time" ;
	double time(time) ;
		time:long_name = "Time offset from midnight" ;
		time:units = "seconds since 2021-11-16 00:00:00 0:00" ;
		time:standard_name = "time" ;
	float bin(bin) ;
		bin:long_name = "Bin by median particle size" ;
		bin:units = "nm" ;
		bin:bounds = "bin_bounds" ;
	float bin_bounds(bin, bound) ;
		bin_bounds:long_name = "Particle size bin bounds" ;
		bin_bounds:units = "nm" ;
	float concentration(time) ;
		concentration:long_name = "Aerosol number concentration from MOPC (Mini Optical Particle Counter)" ;
		concentration:units = "count/cm^3" ;
		concentration:missing_value = -9999.f ;
	short sampling_interval(time) ;
		sampling_interval:long_name = "Sampling interval" ;
		sampling_interval:units = "s" ;
		sampling_interval:missing_value = -9999s ;
		sampling_interval:flag_values = 0s, 1s, 60s ;
		sampling_interval:flag_meanings = "half_second_interval one_second_interval sixty_second_interval" ;
	int size_distribution(time, bin) ;
		size_distribution:long_name = "Particle size distribution" ;
		size_distribution:units = "count" ;
		size_distribution:missing_value = -9999 ;
	float sample_flow(time) ;
		sample_flow:long_name = "Measured sample flow rate" ;
		sample_flow:units = "L/min" ;
		sample_flow:missing_value = -9999.f ;
	float sheath_flow(time) ;
		sheath_flow:long_name = "Measured sheath flow rate" ;
		sheath_flow:units = "L/min" ;
		sheath_flow:missing_value = -9999.f ;
	float sample_setpoint(time) ;
		sample_setpoint:long_name = "Sample flow setpoint" ;
		sample_setpoint:units = "L/min" ;
		sample_setpoint:missing_value = -9999.f ;
	float sheath_setpoint(time) ;
		sheath_setpoint:long_name = "Sheath flow setpoint" ;
		sheath_setpoint:units = "L/min" ;
		sheath_setpoint:missing_value = -9999.f ;
	float temperature(time) ;
		temperature:long_name = "Sheath flow temperature" ;
		temperature:units = "degC" ;
		temperature:missing_value = -9999.f ;
	float pressure(time) ;
		pressure:long_name = "Sample flow pressure" ;
		pressure:units = "hPa" ;
		pressure:missing_value = -9999.f ;
	short laser_brightness(time) ;
		laser_brightness:long_name = "Laser brightness" ;
		laser_brightness:units = "1" ;
		laser_brightness:missing_value = -9999s ;
		laser_brightness:valid_min = 0s ;
		laser_brightness:valid_max = 4095s ;
	short laser_current(time) ;
		laser_current:long_name = "Laser current" ;
		laser_current:units = "1" ;
		laser_current:missing_value = -9999s ;
		laser_current:valid_min = 0s ;
		laser_current:valid_max = 4095s ;
	short pmt_base(time) ;
		pmt_base:long_name = "PMT base offset voltage" ;
		pmt_base:units = "1" ;
		pmt_base:missing_value = -9999s ;
		pmt_base:valid_min = 0s ;
		pmt_base:valid_max = 4095s ;
	short pmt_offset(time) ;
		pmt_offset:long_name = "PMT offset point (automatic)" ;
		pmt_offset:units = "1" ;
		pmt_offset:missing_value = -9999s ;
		pmt_offset:valid_min = 0s ;
		pmt_offset:valid_max = 255s ;
	short sheath_power(time) ;
		sheath_power:long_name = "Sheath pump power level, duty cycle (400 == 100%)" ;
		sheath_power:units = "1" ;
		sheath_power:missing_value = -9999s ;
		sheath_power:valid_min = 0s ;
		sheath_power:valid_max = 400s ;
	short exhaust_power(time) ;
		exhaust_power:long_name = "Exhaust pump power level, duty cycle (400 == 100%)" ;
		exhaust_power:units = "1" ;
		exhaust_power:missing_value = -9999s ;
		exhaust_power:valid_min = 0s ;
		exhaust_power:valid_max = 400s ;
	int opc_errors(time) ;
		opc_errors:long_name = "Bit-packed error codes" ;
		opc_errors:units = "1" ;
		opc_errors:missing_value = -9999 ;
		opc_errors:flag_masks = 1, 2, 4, 8, 16, 32, 64, 128, 256 ;
		opc_errors:flag_meanings = "eeprom_error bad_stored_value check_time clock_error sdcard_error sdcard_bad_format sdcard_space_error bad_thermistor pump_maxed_out" ;
		opc_errors:bit_1_description = "EEPROM error" ;
		opc_errors:bit_2_description = "Bad stored value" ;
		opc_errors:bit_3_description = "Clock, check time" ;
		opc_errors:bit_4_description = "Clock error" ;
		opc_errors:bit_5_description = "SD card error" ;
		opc_errors:bit_6_description = "SD card format is not FAT32" ;
		opc_errors:bit_7_description = "SD card space error" ;
		opc_errors:bit_8_description = "Bad thermistor" ;
		opc_errors:bit_9_description = "Pump maxed out" ;
	float lat ;
		lat:long_name = "North latitude" ;
		lat:units = "degree_N" ;
		lat:valid_min = -90.f ;
		lat:valid_max = 90.f ;
		lat:standard_name = "latitude" ;
	float lon ;
		lon:long_name = "East longitude" ;
		lon:units = "degree_E" ;
		lon:valid_min = -180.f ;
		lon:valid_max = 180.f ;
		lon:standard_name = "longitude" ;
	float alt ;
		alt:long_name = "Altitude above mean sea level" ;
		alt:units = "m" ;
		alt:standard_name = "altitude" ;

// global attributes:
		:command_line = "aafmopc_ingest -s sgp -f U3 -RD --max-runtime 0" ;
		:Conventions = "ARM-1.3" ;
		:process_version = "ingest-aafmopc-1.2-0.el7" ;
		:dod_version = "aafmopc-a1-1.1" ;
		:input_source = "/data/reproc/D211207.3/collection/sgp/sgpaafmopcU3.00/OPC_1_211116_132856.txt" ;
		:site_id = "sgp" ;
		:platform_id = "aafmopc" ;
		:facility_id = "U3" ;
		:data_level = "a1" ;
		:location_description = "Southern Great Plains (SGP), TigerShark Unmanned Aerial System" ;
		:datastream = "sgpaafmopcU3.a1" ;
		:serial_number = "1" ;
		:firmware_version = "1.4" ;
		:laser_wavelength = "405 nm" ;
		:doi = "10.5439/1510522" ;
		:history = "created by user erwinmj on machine agate at 2022-07-14 17:22:28, using ingest-aafmopc-1.2-0.el7" ;
}