netcdf pghgndrad60sM1.b1.20120331.000000 { dimensions: time = UNLIMITED ; // (1380 currently) variables: int base_time ; base_time:string = "31-Mar-2012,0:00:00 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 2012-03-31 00:00:00 0:00" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2012-03-31 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 = 60. ; qc_time:delta_t_upper_limit = 60. ; qc_time:prior_sample_flag = 1 ; 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 up_long_hemisp(time) ; up_long_hemisp:long_name = "Upwelling Longwave Hemispheric Irradiance, Pyrgeometer" ; up_long_hemisp:units = "W/m^2" ; up_long_hemisp:valid_min = 250.f ; up_long_hemisp:valid_max = 575.f ; up_long_hemisp:missing_value = -9999.f ; int qc_up_long_hemisp(time) ; qc_up_long_hemisp:long_name = "Quality check results on field: Upwelling Longwave Hemispheric Irradiance, Pyrgeometer" ; qc_up_long_hemisp:units = "unitless" ; qc_up_long_hemisp:description = "See global attributes for individual bit descriptions." ; float up_short_hemisp(time) ; up_short_hemisp:long_name = "Upwelling Shortwave Hemispheric Irradiance, Pyranometer" ; up_short_hemisp:units = "W/m^2" ; up_short_hemisp:valid_min = -10.f ; up_short_hemisp:valid_max = 400.f ; up_short_hemisp:missing_value = -9999.f ; int qc_up_short_hemisp(time) ; qc_up_short_hemisp:long_name = "Quality check results on field: Upwelling Shortwave Hemispheric Irradiance, Pyranometer" ; qc_up_short_hemisp:units = "unitless" ; qc_up_short_hemisp:description = "See global attributes for individual bit descriptions." ; float sfc_ir_temp(time) ; sfc_ir_temp:long_name = "Surface Infra-Red Temperature" ; sfc_ir_temp:units = "K" ; sfc_ir_temp:valid_min = 223.45f ; sfc_ir_temp:valid_max = 333.f ; sfc_ir_temp:missing_value = -9999.f ; int qc_sfc_ir_temp(time) ; qc_sfc_ir_temp:long_name = "Quality check results on field: Surface Infra-Red Temperature" ; qc_sfc_ir_temp:units = "unitless" ; qc_sfc_ir_temp:description = "See global attributes for individual bit descriptions." ; float up_long_hemisp_std(time) ; up_long_hemisp_std:long_name = "Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Standard Deviation" ; up_long_hemisp_std:units = "W/m^2" ; up_long_hemisp_std:missing_value = -9999.f ; float up_short_hemisp_std(time) ; up_short_hemisp_std:long_name = "Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation" ; up_short_hemisp_std:units = "W/m^2" ; up_short_hemisp_std:missing_value = -9999.f ; float sfc_ir_temp_std(time) ; sfc_ir_temp_std:long_name = "Surface Infra-Red Temperature, Standard Deviation" ; sfc_ir_temp_std:units = "K" ; sfc_ir_temp_std:missing_value = -9999.f ; float up_long_hemisp_max(time) ; up_long_hemisp_max:long_name = "Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima" ; up_long_hemisp_max:units = "W/m^2" ; up_long_hemisp_max:valid_min = 250.f ; up_long_hemisp_max:valid_max = 575.f ; up_long_hemisp_max:missing_value = -9999.f ; int qc_up_long_hemisp_max(time) ; qc_up_long_hemisp_max:long_name = "Quality check results on field: Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima" ; qc_up_long_hemisp_max:units = "unitless" ; qc_up_long_hemisp_max:description = "See global attributes for individual bit descriptions." ; float up_short_hemisp_max(time) ; up_short_hemisp_max:long_name = "Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima" ; up_short_hemisp_max:units = "W/m^2" ; up_short_hemisp_max:valid_min = -10.f ; up_short_hemisp_max:valid_max = 400.f ; up_short_hemisp_max:missing_value = -9999.f ; int qc_up_short_hemisp_max(time) ; qc_up_short_hemisp_max:long_name = "Quality check results on field: Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima" ; qc_up_short_hemisp_max:units = "unitless" ; qc_up_short_hemisp_max:description = "See global attributes for individual bit descriptions." ; float sfc_ir_temp_max(time) ; sfc_ir_temp_max:long_name = "Surface Infra-Red Temperature Maxima" ; sfc_ir_temp_max:units = "K" ; sfc_ir_temp_max:valid_min = 223.45f ; sfc_ir_temp_max:valid_max = 333.f ; sfc_ir_temp_max:missing_value = -9999.f ; int qc_sfc_ir_temp_max(time) ; qc_sfc_ir_temp_max:long_name = "Quality check results on field: Surface Infra-Red Temperature Maxima" ; qc_sfc_ir_temp_max:units = "unitless" ; qc_sfc_ir_temp_max:description = "See global attributes for individual bit descriptions." ; float up_long_hemisp_min(time) ; up_long_hemisp_min:long_name = "Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima" ; up_long_hemisp_min:units = "W/m^2" ; up_long_hemisp_min:valid_min = 250.f ; up_long_hemisp_min:valid_max = 575.f ; up_long_hemisp_min:missing_value = -9999.f ; int qc_up_long_hemisp_min(time) ; qc_up_long_hemisp_min:long_name = "Quality check results on field: Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima" ; qc_up_long_hemisp_min:units = "unitless" ; qc_up_long_hemisp_min:description = "See global attributes for individual bit descriptions." ; float up_short_hemisp_min(time) ; up_short_hemisp_min:long_name = "Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima" ; up_short_hemisp_min:units = "W/m^2" ; up_short_hemisp_min:valid_min = -10.f ; up_short_hemisp_min:valid_max = 400.f ; up_short_hemisp_min:missing_value = -9999.f ; int qc_up_short_hemisp_min(time) ; qc_up_short_hemisp_min:long_name = "Quality check results on field: Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima" ; qc_up_short_hemisp_min:units = "unitless" ; qc_up_short_hemisp_min:description = "See global attributes for individual bit descriptions." ; float sfc_ir_temp_min(time) ; sfc_ir_temp_min:long_name = "Surface Infra-Red Temperature Minima" ; sfc_ir_temp_min:units = "K" ; sfc_ir_temp_min:valid_min = 223.45f ; sfc_ir_temp_min:valid_max = 333.f ; sfc_ir_temp_min:missing_value = -9999.f ; int qc_sfc_ir_temp_min(time) ; qc_sfc_ir_temp_min:long_name = "Quality check results on field: Surface Infra-Red Temperature Minima" ; qc_sfc_ir_temp_min:units = "unitless" ; qc_sfc_ir_temp_min:description = "See global attributes for individual bit descriptions." ; float vBatt(time) ; vBatt:long_name = "Battery voltage" ; vBatt:units = "V" ; vBatt:missing_value = -9999.f ; float logger_temp(time) ; logger_temp:long_name = "Logger temperature" ; logger_temp:units = "C" ; logger_temp:missing_value = -9999.f ; float inst_up_long_hemisp_dome_temp(time) ; inst_up_long_hemisp_dome_temp:long_name = "Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature Pyrgeometer" ; inst_up_long_hemisp_dome_temp:units = "K" ; inst_up_long_hemisp_dome_temp:missing_value = -9999.f ; inst_up_long_hemisp_dome_temp:ventilation_status = "Unventilated" ; inst_up_long_hemisp_dome_temp:temp_calc1 = "L=ln(resistance[ohms])" ; inst_up_long_hemisp_dome_temp:temp_calc2 = "T=1/(0.0010295+(0.0002391*L)+(1.568e-7*L^3))" ; inst_up_long_hemisp_dome_temp:average_calc = "Three 20-second values are averaged to produce a 60-second value" ; float inst_up_long_hemisp_case_temp(time) ; inst_up_long_hemisp_case_temp:long_name = "Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature Pyrgeometer" ; inst_up_long_hemisp_case_temp:units = "K" ; inst_up_long_hemisp_case_temp:missing_value = -9999.f ; inst_up_long_hemisp_case_temp:ventilation_status = "Unventilated" ; inst_up_long_hemisp_case_temp:temp_calc1 = "L=ln(resistance[ohms])" ; inst_up_long_hemisp_case_temp:temp_calc2 = "T=1/(0.0010295+(0.0002391*L)+(1.568e-7*L^3))" ; inst_up_long_hemisp_case_temp:average_calc = "Three 20-second values are averaged to produce a 60-second value" ; float inst_up_long_hemisp_tp(time) ; inst_up_long_hemisp_tp:long_name = "Instantaneous Upwelling Pyrgeometer Thermopile Pyrgeometer" ; inst_up_long_hemisp_tp:units = "W/m^2" ; inst_up_long_hemisp_tp:missing_value = -9999.f ; inst_up_long_hemisp_tp:ventilation_status = "Unventilated" ; inst_up_long_hemisp_tp:average_calc = "Three 20-second values are averaged to produce a 60-second value" ; float lat ; lat:long_name = "North latitude" ; lat:units = "degree_N" ; lat:valid_min = -90.f ; lat:valid_max = 90.f ; float lon ; lon:long_name = "East longitude" ; lon:units = "degree_E" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; float alt ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; // global attributes: :qc_standards_version = "1.0" ; :dod_version = "gndrad60s-b1-1.6" ; :process_version = "ingest-rad-2.2-0.el5" ; :command_line = "rad_ingest -s pgh -f M1 -n gndrad -R" ; :ingest_software = "ingest-rad-2.2-0.el5" ; :data_level = "b1" ; :input_source = "/data/collection//pgh/pghgndradM1.00/pghgndradM1.00.20120331.000000.raw.20120331000000.dat" ; :site_id = "pgh" ; :facility_id = "M1: Nainital, India" ; :sample_interval = "1 second" ; :averaging_interval = "60 seconds" ; :comment = "" ; :resolution_description = "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.\n", "\n", "resolution for lat = 0.001\n", "resolution for lon = 0.001\n", "resolution for alt = 1" ; :serial_number = "PIR-UIR: 33767\n", "PSP-US: 33941\n", "SFC-IR: 2302\n", "" ; :calib_coeff = "calib_coeff_k0 = PIR-UIR: 0.000000 W/m^2\n", "calib_coeff_k1 = PIR-UIR: 0.310560 W/(m^2*uV)\n", "calib_coeff_k2 = PIR-UIR: 1.000000 unitless\n", "calib_coeff_k3 = PIR-UIR: -4.000000 unitless\n", "calib_coeff_kr = PIR-UIR: 0.000000 K/uV\n", "PSP-US: 117.970000 W/(m^2*mV)\n", "SFC-IR: 25.000000 K/V\n", "SFC-IR-OFFSET: 223.200000 K\n", "" ; :qc_method = "Standard Mentor QC" ; :qc_comment = "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.\n", "\n", "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:\n", "\n", "bit_1 = 00000001 = 0x01 = 2^0 = 1\n", "bit_2 = 00000010 = 0x02 = 2^1 = 2\n", "bit_3 = 00000100 = 0x04 = 2^2 = 4\n", "bit_4 = 00001000 = 0x08 = 2^3 = 8\n", "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 = "pghgndrad60sM1.b1" ; :history = "created by user dsmgr on machine reproc1a-rhel5 at 14-Dec-2012,1:38:31, using $State: zebra-zeblib-4.23-0.el5 $" ; }