netcdf houaosaeth2spotM1.a1.20221002.000000 {
dimensions:
	time = UNLIMITED ; // (71412 currently)
	wavelength = 7 ;
variables:
	int base_time ;
		base_time:string = "2022-10-02 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 2022-10-02 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 2022-10-02 00:00:00 0:00" ;
		time:standard_name = "time" ;
	float wavelength(wavelength) ;
		wavelength:long_name = "Wavelength of aethelometer optical filter" ;
		wavelength:units = "nm" ;
	float sample_intensity_spot_1(time, wavelength) ;
		sample_intensity_spot_1:long_name = "Sample intensity for spot 1" ;
		sample_intensity_spot_1:units = "count" ;
		sample_intensity_spot_1:missing_value = -9999.f ;
	float sample_intensity_spot_2(time, wavelength) ;
		sample_intensity_spot_2:long_name = "Sample intensity for spot 2" ;
		sample_intensity_spot_2:units = "count" ;
		sample_intensity_spot_2:missing_value = -9999.f ;
	float reference_intensity(time, wavelength) ;
		reference_intensity:long_name = "Reference beam intensity" ;
		reference_intensity:units = "count" ;
		reference_intensity:missing_value = -9999.f ;
	float equivalent_black_carbon_spot_1_uncorrected(time, wavelength) ;
		equivalent_black_carbon_spot_1_uncorrected:long_name = "Equivalent black carbon concentration for spot 1 uncorrected for loading factors" ;
		equivalent_black_carbon_spot_1_uncorrected:units = "ng/m^3" ;
		equivalent_black_carbon_spot_1_uncorrected:missing_value = -9999.f ;
	float equivalent_black_carbon_spot_2_uncorrected(time, wavelength) ;
		equivalent_black_carbon_spot_2_uncorrected:long_name = "Equivalent black carbon concentration for spot 2 uncorrected for loading factors" ;
		equivalent_black_carbon_spot_2_uncorrected:units = "ng/m^3" ;
		equivalent_black_carbon_spot_2_uncorrected:missing_value = -9999.f ;
	float loading_correction_factor(time, wavelength) ;
		loading_correction_factor:long_name = "Loading correction factor" ;
		loading_correction_factor:units = "1" ;
		loading_correction_factor:missing_value = -9999.f ;
	float equivalent_black_carbon(time, wavelength) ;
		equivalent_black_carbon:long_name = "Equivalent black carbon concentration corrected for loading factors" ;
		equivalent_black_carbon:units = "ng/m^3" ;
		equivalent_black_carbon:missing_value = -9999.f ;
	float bc_brc(time) ;
		bc_brc:long_name = "Percentage of black carbon and brown carbon" ;
		bc_brc:units = "1" ;
		bc_brc:missing_value = -9999.f ;
	float sample_flow_rate_spot_1(time) ;
		sample_flow_rate_spot_1:long_name = "Instrument flow rate for spot 1" ;
		sample_flow_rate_spot_1:units = "L/min" ;
		sample_flow_rate_spot_1:flow_type = "mass flow" ;
		sample_flow_rate_spot_1:reference = "volume of mass flow corresponding to 20 deg C, 1013.25 Pa" ;
		sample_flow_rate_spot_1:missing_value = -9999.f ;
	float sample_flow_rate_spot_2(time) ;
		sample_flow_rate_spot_2:long_name = "Instrument flow rate for spot 2" ;
		sample_flow_rate_spot_2:units = "L/min" ;
		sample_flow_rate_spot_2:flow_type = "mass flow" ;
		sample_flow_rate_spot_2:reference = "volume of mass flow corresponding to 20 deg C, 1013.25 Pa" ;
		sample_flow_rate_spot_2:missing_value = -9999.f ;
	float sample_flow_rate_combined(time) ;
		sample_flow_rate_combined:long_name = "Instrument flow rate for both spots combined" ;
		sample_flow_rate_combined:units = "L/min" ;
		sample_flow_rate_combined:flow_type = "mass flow" ;
		sample_flow_rate_combined:reference = "volume of mass flow corresponding to 20 deg C, 1013.25 Pa" ;
		sample_flow_rate_combined:missing_value = -9999.f ;
	float assumed_pressure(time) ;
		assumed_pressure:long_name = "Pressure used to infer volumetric flow from measured mass flow" ;
		assumed_pressure:units = "Pa" ;
		assumed_pressure:missing_value = -9999.f ;
	float assumed_temperature(time) ;
		assumed_temperature:long_name = "Temperature used to infer volumetric flow from measured mass flow" ;
		assumed_temperature:units = "degC" ;
		assumed_temperature:missing_value = -9999.f ;
	int tape_advances(time) ;
		tape_advances:long_name = "Number of tape advances since start" ;
		tape_advances:units = "1" ;
		tape_advances:missing_value = -9999 ;
	float controller_temperature(time) ;
		controller_temperature:long_name = "Controller temperature" ;
		controller_temperature:units = "degC" ;
		controller_temperature:missing_value = -9999.f ;
	float LED_temperature(time) ;
		LED_temperature:long_name = "LED temperature" ;
		LED_temperature:units = "degC" ;
		LED_temperature:missing_value = -9999.f ;
	float power_supply_temperature(time) ;
		power_supply_temperature:long_name = "Power supply temperature" ;
		power_supply_temperature:units = "degC" ;
		power_supply_temperature:missing_value = -9999.f ;
	int instrument_status(time) ;
		instrument_status:long_name = "Instrument status flags" ;
		instrument_status:units = "1" ;
		instrument_status:missing_value = -9999 ;
		instrument_status:flag_masks = 3, 3, 3, 12, 12, 12, 48, 48, 48, 64, 384, 384, 384, 512, 7168, 7168, 7168, 7168, 7168, 8192, 16384, 32768, 65536 ;
		instrument_status:flag_values = 1, 2, 3, 4, 8, 12, 16, 32, 48, 64, 128, 256, 384, 512, 1024, 2048, 3072, 4096, 6144, 8192, 16384, 32768, 65536 ;
		instrument_status:flag_meanings = "advancing_tape first_measurement measurement_stopped flow_not_calibrated check_flow_status flow_not_calibrated_and_check_flow_status calibrating_led calibration_error_some calibration_error_all optical_chamber_error filter_tape_low filter_tape_critical filter_tape_error running_setup_file running_stability_test running_clean_air_test changing_tape running_optical_test running_leakage_test ext_dev_connection_error clean_air_test_error cf_card_io_error db_size_warning" ;
		instrument_status:comment = "Most bit flags here use multiple bits, unlike the usual, pure bit flags. At each index in flag_masks and flag_values: first, the flag_mask is applied to select out the value at the range of bits that flag_mask describes; then, flag_value is compared to the masked value to see if it is exactly equal, to determine if that flag has been set. e.g. if flag_masks[i] == 12, the value of bits 3 and 4 is masked out for comparison with flag_values[i]; if flag_values[i] == 4, and bits 3 and 4 == 8 or 12 (binary 01 or 11 for those bits, respectively), the comparison is false; if bits 3 and 4 == 4 (binary 10), the comparison is true." ;
		instrument_status:mask_3_value_1_description = "tape advance (tape advance, fast calibration, or warm-up mode)" ;
		instrument_status:mask_3_value_2_description = "first measurement, obtaining ATN0 value" ;
		instrument_status:mask_3_value_3_description = "measurement stopped" ;
		instrument_status:mask_12_value_4_description = "flow low/high: by more than 0.5 LPM OR F1 < 0 OR F2/F1 < 0.2 OR F2/F1 > 0.75" ;
		instrument_status:mask_12_value_8_description = "flow status history requires check" ;
		instrument_status:mask_12_value_12_description = "flow is low/high, and history requires check" ;
		instrument_status:mask_48_value_16_description = "calibrating LED" ;
		instrument_status:mask_48_value_32_description = "LED calibration error (but at least one channel OK)" ;
		instrument_status:mask_48_value_48_description = "LED error (all channels calibration error, COM error)" ;
		instrument_status:mask_64_value_64_description = "optical chamber error" ;
		instrument_status:mask_384_value_128_description = "filter tape warning (< 30 spots left)" ;
		instrument_status:mask_384_value_256_description = "filter tape last warning (< 5 spots left)" ;
		instrument_status:mask_384_value_384_description = "tape error (tape not moving, end of tape)" ;
		instrument_status:mask_512_value_512_description = "setup file warning" ;
		instrument_status:mask_7168_value_1024_description = "running stability test" ;
		instrument_status:mask_7168_value_2048_description = "running clean air test" ;
		instrument_status:mask_7168_value_3072_description = "change tape procedure in progress" ;
		instrument_status:mask_7168_value_4096_description = "running optical test" ;
		instrument_status:mask_7168_value_6144_description = "running leakage test" ;
		instrument_status:mask_8192_value_8192_description = "external device connection error" ;
		instrument_status:mask_16384_value_16384_description = "clean air test failure, service instrument" ;
		instrument_status:mask_32768_value_32768_description = "problem reading/writing to CF card" ;
		instrument_status:mask_65536_value_65536_description = "database > 2^106 lines" ;
	short controller_status(time) ;
		controller_status:long_name = "Controller status flags" ;
		controller_status:units = "1" ;
		controller_status:missing_value = -9999s ;
		controller_status:flag_values = 0s, 100s, 255s ;
		controller_status:flag_meanings = "ready detected_reset busy" ;
		controller_status:flag_0_description = "controller ready for operation" ;
		controller_status:flag_100_description = "controller reset detected, not ready for operation" ;
		controller_status:flag_255_description = "controller busy" ;
	short detector_status(time) ;
		detector_status:long_name = "Detector status flags" ;
		detector_status:units = "1" ;
		detector_status:missing_value = -9999s ;
		detector_status:flag_values = 0s, 10s, 20s, 30s, 40s, 55s, 56s, 57s, 58s, 59s ;
		detector_status:flag_meanings = "init_error measuring stopped led_calibration led_calibration_fast reading_ndf0 reading_ndf1 reading_ndf2 reading_ndf3 ndf_measurement_error" ;
		detector_status:flag_0_description = "detector initialization error" ;
		detector_status:flag_10_description = "detector measuring" ;
		detector_status:flag_20_description = "detector stopped" ;
		detector_status:flag_30_description = "LED calibration" ;
		detector_status:flag_40_description = "fast LED calibration" ;
		detector_status:flag_55_description = "reading neutral density filter 0 (NDF0)" ;
		detector_status:flag_56_description = "reading neutral density filter 1 (NDF1)" ;
		detector_status:flag_57_description = "reading neutral density filter 2 (NDF2)" ;
		detector_status:flag_58_description = "reading neutral density filter 3 (NDF3)" ;
		detector_status:flag_59_description = "error during NDF measurements" ;
	short LED_status(time) ;
		LED_status:long_name = "LED status flags" ;
		LED_status:units = "1" ;
		LED_status:missing_value = -9999s ;
		LED_status:flag_values = 0s, 10s ;
		LED_status:flag_meanings = "driver_init_error driver_ok" ;
		LED_status:flag_0_description = "LED driver initialization error" ;
		LED_status:flag_10_description = "LED driver OK" ;
	short valve_status(time) ;
		valve_status:long_name = "Valve status flags" ;
		valve_status:units = "1" ;
		valve_status:missing_value = -9999s ;
		valve_status:flag_masks = 1s, 2s, 4s, 8s, 16s ;
		valve_status:flag_meanings = "valve_1_position_1 valve_2_position_1 valve_3_position_1 valve_4_position_1 valve_4_moving" ;
		valve_status:comment = "Each valve can be in position 0 or 1. Valve 4 can also be in motion." ;
		valve_status:bit_1_description = "if 0, valve 1 is in position 0; if 1, valve 1 is in position 1" ;
		valve_status:bit_2_description = "if 0, valve 2 is in position 0; if 1, valve 2 is in position 1" ;
		valve_status:bit_3_description = "if 0, valve 3 is in position 0; if 1, valve 3 is in position 1" ;
		valve_status:bit_4_description = "if 0, valve 4 is in position 0; if 1, valve 4 is in position 1" ;
		valve_status:bit_5_description = "if 0, valve 4 is not moving; if 1, valve 4 is moving" ;
	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 = "aosaeth2spot_ingest -s hou -f M1" ;
		:Conventions = "ARM-1.2" ;
		:process_version = "ingest-aosaeth2spot-1.0-1.el7" ;
		:dod_version = "aosaeth2spot-a1-3.1" ;
		:input_source = "/data/collection/hou/houaosaeth2spotM1.00/houaosM1.aeth2spot.01s.00.20221002.000000.raw.tsv" ;
		:site_id = "hou" ;
		:platform_id = "aosaeth2spot" ;
		:facility_id = "M1" ;
		:data_level = "a1" ;
		:location_description = "Tracking Aerosol Convection Interactions Experiment (TRACER), La Porte, Texas" ;
		:sampling_interval = "1 minute" ;
		:datastream = "houaosaeth2spotM1.a1" ;
		:doi = "10.5439/1211529" ;
		:history = "created by user dsmgr on machine prod-proc1.adc.arm.gov at 2022-10-02 02:05:01, using ingest-aosaeth2spot-1.0-1.el7" ;
}