netcdf sgpirtE22.b1.20091201.000000 { dimensions: time = UNLIMITED ; // (840 currently) variables: int base_time ; base_time:string = "1-Dec-2009,0:00:00 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 2009-12-01 00:00:00 0:00" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2009-12-01 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 = 60 ; qc_time:delta_t_upper_limit = 60 ; qc_time:prior_sample_flag = 1 ; float sky_ir_temp(time) ; sky_ir_temp:long_name = "Sky Infra Red Temperature" ; sky_ir_temp:units = "K" ; sky_ir_temp:valid_min = 173.f ; sky_ir_temp:valid_max = 303.f ; sky_ir_temp:valid_delta = 50.f ; sky_ir_temp:resolution = 0.01f ; int qc_sky_ir_temp(time) ; qc_sky_ir_temp:long_name = "Quality check results on field: Sky Infra Red Temperature" ; qc_sky_ir_temp:units = "unitless" ; float sky_ir_temp_min(time) ; sky_ir_temp_min:long_name = "Sky Infra Red Temperature Minima" ; sky_ir_temp_min:units = "K" ; sky_ir_temp_min:valid_min = 173.f ; sky_ir_temp_min:valid_max = 303.f ; sky_ir_temp_min:valid_delta = 50.f ; sky_ir_temp_min:resolution = 0.01f ; int qc_sky_ir_temp_min(time) ; qc_sky_ir_temp_min:long_name = "Quality check results on field: Sky Infra Red Temperature Minima" ; qc_sky_ir_temp_min:units = "unitless" ; float sky_ir_temp_max(time) ; sky_ir_temp_max:long_name = "Sky Infra Red Temperature Maxima" ; sky_ir_temp_max:units = "K" ; sky_ir_temp_max:valid_min = 173.f ; sky_ir_temp_max:valid_max = 303.f ; sky_ir_temp_max:valid_delta = 50.f ; sky_ir_temp_max:resolution = 0.01f ; int qc_sky_ir_temp_max(time) ; qc_sky_ir_temp_max:long_name = "Quality check results on field: Sky Infra Red Temperature Maxima" ; qc_sky_ir_temp_max:units = "unitless" ; float sky_ir_temp_std(time) ; sky_ir_temp_std:long_name = "Standard Deviation of Sky Infra Red Temperature" ; sky_ir_temp_std:units = "K" ; float ref_ir_temp(time) ; ref_ir_temp:long_name = "Internal Reference Infra Red Temperature" ; ref_ir_temp:units = "K" ; ref_ir_temp:valid_min = 253.f ; ref_ir_temp:valid_max = 333.f ; ref_ir_temp:valid_delta = 10.f ; ref_ir_temp:resolution = 0.01f ; int qc_ref_ir_temp(time) ; qc_ref_ir_temp:long_name = "Quality check results on field: Internal Reference Infra Red Temperature" ; qc_ref_ir_temp:units = "unitless" ; float ref_ir_temp_std(time) ; ref_ir_temp_std:long_name = "Standard Deviation of Internal Reference Infra Red Temperature" ; ref_ir_temp_std:units = "K" ; int samples_in_average(time) ; samples_in_average:long_name = "Number of Samples Averaged" ; samples_in_average:units = "count" ; 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 = "process-ingest-irthr_ingest-2.0-0" ; :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 = " irthr_ingest.c,v 1.12 2006/08/08 09:49:21 ermold process-ingest-irthr_ingest-2.0-0 $" ; :proc_level = "b1" ; :input_source = "/data/collection/sgp/sgpirtE22.00/20091201_000001.icm" ; :site_id = "sgp" ; :facility_id = "E22: Cordell, Oklahoma" ; :sample_int = "0.2 seconds" ; :averaging_int = "60 seconds" ; :comment = "The time assigned to each data point indicates the beginning of the averaging interval." ; :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" ; :serial_number = "2661" ; :calibration_factor = "1.077700" ; :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 = "sgpirtE22.b1" ; :history = "created by user dsmgr on machine ruby at 1-Dec-2009,2:25:07, using $State: ds-zebra-zeblib-4.16-0 $" ; }