netcdf grwaosccnM1.a1.20101231.000011 { dimensions: time = UNLIMITED ; // (704 currently) num_bins = 21 ; variables: int base_time ; base_time:string = "30-Dec-2010,23:59:34 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 2010-12-30 23:59:34 0:00" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2010-12-31 00:00:00 0:00" ; float CCN_ss_set(time) ; CCN_ss_set:long_name = "AOS CCN sample saturation setpoint value reported by instrument" ; CCN_ss_set:units = "%" ; CCN_ss_set:missing_value = -9999.f ; int CCN_temp_unstable_flag(time) ; CCN_temp_unstable_flag:long_name = "Hexadecimal flag, non-zero value means instrument is not operating stably" ; CCN_temp_unstable_flag:units = "unitless" ; CCN_temp_unstable_flag:missing_value = -9999 ; CCN_temp_unstable_flag:bit_1 = "(0x02) set by CPD, based on standard deviation of column temperature difference (threshold exceeded)" ; float CCN_T_TEC1(time) ; CCN_T_TEC1:long_name = "AOS CCN temperature at top of column" ; CCN_T_TEC1:units = "degrees C" ; CCN_T_TEC1:missing_value = -9999.f ; float CCN_T_TEC2(time) ; CCN_T_TEC2:long_name = "AOS CCN temperature at middle of column" ; CCN_T_TEC2:units = "degrees C" ; CCN_T_TEC2:missing_value = -9999.f ; float CCN_T_TEC3(time) ; CCN_T_TEC3:long_name = "AOS CCN temperature at bottom of column" ; CCN_T_TEC3:units = "degrees C" ; CCN_T_TEC3:missing_value = -9999.f ; float CCN_T_sample(time) ; CCN_T_sample:long_name = "AOS CCN temperature of sample air entering the column" ; CCN_T_sample:units = "degrees C" ; CCN_T_sample:missing_value = -9999.f ; float CCN_T_inlet(time) ; CCN_T_inlet:long_name = "AOS CCN temperature of sample air at entrance to instrument" ; CCN_T_inlet:units = "degrees C" ; CCN_T_inlet:missing_value = -9999.f ; float CCN_T_OPC(time) ; CCN_T_OPC:long_name = "AOS CCN temperature of the optical particle counter" ; CCN_T_OPC:units = "degrees C" ; CCN_T_OPC:missing_value = -9999.f ; float CCN_T_nafion(time) ; CCN_T_nafion:long_name = "AOS CCN temperature of the nafion humidifier" ; CCN_T_nafion:units = "degrees C" ; CCN_T_nafion:missing_value = -9999.f ; float CCN_dT_TEC3_TEC1_StdDev(time) ; CCN_dT_TEC3_TEC1_StdDev:long_name = "AOS CCN standard deviation of difference (CCN_T_TEC1 - CCN_T_TEC3)" ; CCN_dT_TEC3_TEC1_StdDev:units = "degrees C" ; CCN_dT_TEC3_TEC1_StdDev:missing_value = -9999.f ; float CCN_Q_sample(time) ; CCN_Q_sample:long_name = "AOS CCN volumetric flowrate of sample air" ; CCN_Q_sample:units = "cm^3/minute" ; CCN_Q_sample:missing_value = -9999.f ; float CCN_Q_sheath(time) ; CCN_Q_sheath:long_name = "AOS CCN volumetric flowrate of sheath air" ; CCN_Q_sheath:units = "cm^3/minute" ; CCN_Q_sheath:missing_value = -9999.f ; float CCN_P_sample(time) ; CCN_P_sample:long_name = "AOS CCN sample pressure" ; CCN_P_sample:units = "hPa" ; CCN_P_sample:missing_value = -9999.f ; float CCN_laser_current(time) ; CCN_laser_current:long_name = "AOS CCN OPC laser current" ; CCN_laser_current:units = "mA" ; CCN_laser_current:missing_value = -9999.f ; float N_CCN(time) ; N_CCN:long_name = "AOS number concentration of CCN" ; N_CCN:units = "1/cm^3" ; N_CCN:missing_value = -9999.f ; int N_CCN_bin_number(time) ; N_CCN_bin_number:long_name = "AOS bin number of lowest channel of OPC include in summation of N_CCN" ; N_CCN_bin_number:units = "unitless" ; N_CCN_bin_number:missing_value = -9999 ; float N_CCN_dN(time, num_bins) ; N_CCN_dN:long_name = "AOS CCN number concentration by bin " ; N_CCN_dN:units = "unitless" ; N_CCN_dN:missing_value = -9999.f ; N_CCN_dN:comment1 = "Each bin contains a droplet count, based on droplet size" ; N_CCN_dN:comment2 = "Bin droplet size (top of each bin) are 0.75um, 1.0um, 1.5um, 2.0um, 2.5um ... to 10um in 0.5um increments" ; float CCN_ss_calc(time) ; CCN_ss_calc:long_name = "AOS CCN sample supersaturation calculated by model)" ; CCN_ss_calc:units = "%" ; CCN_ss_calc:missing_value = -9999.f ; CCN_ss_calc:model_documentation1 = "Roberts, G. C. and Nenes, A. (2005)" ; CCN_ss_calc:model_documentation2 = "A continuous-flow streamwise thermal-gradient CCN chamber for atmospheric measurements." ; CCN_ss_calc:model_documentation3 = "Aerosol Sci. Tech., 39, 206-221" ; CCN_ss_calc:model_documentation4 = "Lance, S., Medina, J., Smith, J. N. and Nenes, A. (2006)" ; CCN_ss_calc:model_documentation5 = "Mapping the operation of the DMT continuous flow CCN counter" ; CCN_ss_calc:model_documentation6 = "Aerosol Sci. Tech., submitted, not yet published" ; float CCN_UpperSizeLimit(num_bins) ; CCN_UpperSizeLimit:long_name = "Size of upper limit of each CCN bin" ; CCN_UpperSizeLimit:units = "um" ; CCN_UpperSizeLimit:missing_value = -9999.f ; float CCN_FirstStageMonitorVoltage(time) ; CCN_FirstStageMonitorVoltage:long_name = "First stage monitor voltage" ; CCN_FirstStageMonitorVoltage:units = "V (DC)" ; CCN_FirstStageMonitorVoltage:missing_value = -9999.f ; float CCN_Temperature_Gradient(time) ; CCN_Temperature_Gradient:long_name = "CCN temperature gradient" ; CCN_Temperature_Gradient:units = "C" ; CCN_Temperature_Gradient:missing_value = -9999.f ; float CCN_ProportionalValveVoltage(time) ; CCN_ProportionalValveVoltage:long_name = "CCN Propotional valve voltage" ; CCN_ProportionalValveVoltage:units = "V" ; CCN_ProportionalValveVoltage:missing_value = -9999.f ; float lat ; lat:long_name = "north latitude" ; lat:units = "degrees" ; lat:valid_min = -90.f ; lat:valid_max = 90.f ; float lon ; lon:long_name = "east longitude" ; lon:units = "degrees" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; float alt ; alt:long_name = "altitude" ; alt:units = "meters above Mean Sea Level" ; // global attributes: :ingest_version = "ingest-aos-9.9-0.sol5_10" ; :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 = " aos_ingest.c,v 1.10 2009/07/20 13:11:13 koontz ingest-aos-9.9-0.sol5_10 $" ; :input_source = "/CCNprep_20101231_000000.asc" ; :site_id = "grw" ; :facility_id = "M1: Graciosa Island, Azores" ; :sample_int = "1 second" ; :averaging_int = "60 seconds" ; :serial_number = "Not Specified" ; :comment = "" ; :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" ; :proc_level = "a1" ; :zeb_platform = "grwaosccnM1.a1" ; :history = "created by user dsmgr on machine ruby at 31-Dec-2010,0:53:02, using $State: ds-zebra-zeblib-4.16-0 $" ; }