netcdf sgp05okmX1.a1.20100306.000000 { dimensions: time = UNLIMITED ; // (144 currently) platform = 127 ; fldlen = 20 ; variables: int base_time ; base_time:string = "6-Mar-2010,0:00:00 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 2010-03-06 00:00:00 0:00" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2010-03-06 00:00:00 0:00" ; float rh(time, platform) ; rh:long_name = "relative humidity at 1.5m" ; rh:units = "percent" ; rh:missing_value = -9999.f ; rh:sampling_time = "3 seconds" ; rh:sensor_type = "Vaisala HMP35C thermistor & sorption sensor mounted on Coastal Climate radiation shield" ; rh:sensor_height = "1.5 m" ; rh:sensor_accuracy = "+/-3% for 90-100%, +/-2% for 0-90%" ; rh:valid_min = 0.f ; rh:valid_max = 100.f ; rh:sensor_resolution = "0.03%" ; rh:comment = "core parameter" ; float tdry_1_5m(time, platform) ; tdry_1_5m:long_name = "air temperature at 1.5m" ; tdry_1_5m:units = "degree Celsius" ; tdry_1_5m:missing_value = -9999.f ; tdry_1_5m:sampling_time = "3 seconds" ; tdry_1_5m:sensor_type = "Vaisala HMP35C thermistor & sorption sensor mounted on Coastal Climate unaspirated radiation shield" ; tdry_1_5m:sensor_height = "1.5 m" ; tdry_1_5m:sensor_accuracy = "+/-0.35 degree C" ; tdry_1_5m:valid_min = -30.f ; tdry_1_5m:valid_max = 50.f ; tdry_1_5m:sensor_resolution = "0.01 degree C" ; tdry_1_5m:comment = "core parameter" ; float wspd_10m(time, platform) ; wspd_10m:long_name = "average wind run (arithmetic average speed) at 10m" ; wspd_10m:units = "m/s" ; wspd_10m:missing_value = -9999.f ; wspd_10m:sampling_time = "counted over a 3 second" ; wspd_10m:sensor_type = "R.M. Young 5103 propeller-vane anemometer" ; wspd_10m:sensor_height = "10 m" ; wspd_10m:sensor_accuracy = "+/-2%" ; wspd_10m:valid_min = 0.f ; wspd_10m:valid_max = 60.f ; wspd_10m:sensor_resolution = "0.03 m/s" ; wspd_10m:sensor_characteristics_1 = "propeller has a starting threshold of 1 m/s, distance constant is 2.7m" ; wspd_10m:sensor_characteristics_2 = "vane threshold is 1.0 m/s, damping ratio is 0.25, undamped natural wavelength is 7.2m" ; wspd_10m:sensor_characteristics_3 = "propeller-vanes are oriented to true North" ; wspd_10m:comment = "core parameter" ; float wvec_10m(time, platform) ; wvec_10m:long_name = "vector average wind magnitude" ; wvec_10m:units = "m/s" ; wvec_10m:missing_value = -9999.f ; wvec_10m:sampling_time = "3 seconds" ; wvec_10m:sensor_type = "R.M. Young 5103 propeller-vane anemometer" ; wvec_10m:sensor_height = "10 m" ; wvec_10m:sensor_accuracy = "+/-2%" ; wvec_10m:valid_min = 0.f ; wvec_10m:valid_max = 60.f ; wvec_10m:sensor_resolution = "0.03 m/s" ; wvec_10m:comment = "core parameter generated by local processing in the data logger" ; float wdir_10m(time, platform) ; wdir_10m:long_name = "vector average of wind direction measured at 10m" ; wdir_10m:units = "degrees" ; wdir_10m:missing_value = -9999.f ; wdir_10m:sampling_time = "3 seconds" ; wdir_10m:sensor_type = "R.M. Young 5103 propeller-vane anemometer" ; wdir_10m:sensor_height = "10 m" ; wdir_10m:sensor_accuracy = "+/-3 degrees" ; wdir_10m:valid_min = 0.f ; wdir_10m:valid_max = 360.f ; wdir_10m:sensor_resolution = "0.05 degree" ; wdir_10m:comment = "core parameter" ; float wdir_sigma(time, platform) ; wdir_sigma:long_name = "standard deviation of wind direction" ; wdir_sigma:units = "degree" ; wdir_sigma:missing_value = -9999.f ; wdir_sigma:valid_min = 0.f ; wdir_sigma:valid_max = 180.f ; wdir_sigma:comment = "core parameter generated by local processing in the data logger" ; float wspd_sigma(time, platform) ; wspd_sigma:long_name = "standard deviation of wind speed" ; wspd_sigma:units = "m/s" ; wspd_sigma:missing_value = -9999.f ; wspd_sigma:valid_min = 0.f ; wspd_sigma:valid_max = 20.f ; wspd_sigma:comment = "core parameter generated by local processing in the data logger" ; float wspd_max(time, platform) ; wspd_max:long_name = "maximum 3-second wind speed within the 5-minute averaging period" ; wspd_max:units = "m/s" ; wspd_max:missing_value = -9999.f ; wspd_max:valid_min = 0.f ; wspd_max:valid_max = 100.f ; wspd_max:comment = "core parameter generated by local processing in the data logger" ; float prec_amt(time, platform) ; prec_amt:long_name = "accumulated rainfall since 00GMT except at 00 GMT, the number given is the total accumulation for the past 24 hours" ; prec_amt:units = "mm" ; prec_amt:missing_value = -9999.f ; prec_amt:sensor_type_1 = "MetOne 099M unheated 30cm diameter orifice tipping bucket rain gauge" ; prec_amt:sensor_type_2 = "with internal constr. Alter style wind screen" ; prec_amt:sensor_height = "0.6m" ; prec_amt:valid_min = 0.f ; prec_amt:valid_max = 508.f ; prec_amt:sensor_accuracy = "+/-1%" ; prec_amt:sensor_resolution = "0.25mm" ; prec_amt:sensor_characteristics = "gauge is not suitable for snow or freezing precipitation measurement" ; prec_amt:comment = "core parameter" ; float pres(time, platform) ; pres:long_name = "station pressure" ; pres:units = "hPa" ; pres:missing_value = -9999.f ; pres:sampling_time = "12 seconds" ; pres:sensor_type = "Vaisala PTB202 barometer" ; pres:sensor_height = "0.75m" ; pres:valid_min = 700.f ; pres:valid_max = 1100.f ; pres:sensor_accuracy = "+/-0.4 hPa over temperature range of -30 to 50 degree Celcius" ; pres:sensor_resolution = "0.1 hPa" ; pres:comment = "core parameter" ; float srad(time, platform) ; srad:long_name = "solar radiation" ; srad:units = "watts/m^2" ; srad:missing_value = -9999.f ; srad:sampling_time = "3 seconds" ; srad:sensor_type = "LiCor 200 silicon photodiode Pyranometer" ; srad:sensor_height = "1.75m" ; srad:sensor_accuracy = "+/-5%" ; srad:valid_min = -1.f ; srad:valid_max = 1500.f ; srad:sensor_resolution = "0.23 W/m^2" ; srad:sensor_characteristics_1 = "pyranometer is mounted on a separate tripod south of the tower at 1.75m" ; srad:sensor_characteristics_2 = "pyranometer is useful to the extent that the distribution of solar radiation" ; srad:sensor_characteristics_3 = "in the 0.3 to 4 um band does not change from clear to cloudy days" ; srad:comment = "core parameter" ; float tdry_9m(time, platform) ; tdry_9m:long_name = "air temperature at 9m" ; tdry_9m:units = "degree Celsius" ; tdry_9m:missing_value = -9999.f ; tdry_9m:sampling_time = "3 seconds" ; tdry_9m:sensor_type = "Thermometerics thermistor with Coastal Climate unaspirated radiation shield" ; tdry_9m:sensor_height = "9m" ; tdry_9m:sensor_accuracy = "+/-0.4 degree" ; tdry_9m:valid_min = -30.f ; tdry_9m:valid_max = 50.f ; tdry_9m:sensor_resolution = "0.03 degree Celsius" ; tdry_9m:sensor_characteristics = "fast response thermistor" ; tdry_9m:comment = "supplemental parameter" ; float wspd_2m(time, platform) ; wspd_2m:long_name = "average wind speed at 2m" ; wspd_2m:units = "m/s" ; wspd_2m:missing_value = -9999.f ; wspd_2m:sampling_time = "3 seconds" ; wspd_2m:sensor_type = "R.M. Young 3101 cup anemometer" ; wspd_2m:sensor_height = "2 m" ; wspd_2m:valid_min = 0.5f ; wspd_2m:valid_max = 50.f ; wspd_2m:sensor_resolution = "0.25 m/s" ; wspd_2m:sensor_characteristics = "starting threshold is 0.5 m/s, distance constant is 2.3m" ; wspd_2m:comment = "supplemental parameter" ; char platform(platform, fldlen) ; float lat(platform) ; lat:long_name = "North latitude" ; lat:units = "degree_N" ; lat:valid_min = -90.f ; lat:valid_max = 90.f ; float lon(platform) ; lon:long_name = "East longitude" ; lon:units = "degree_E" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; float alt(platform) ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; // global attributes: :process_version = "$State: xdc-sgpokm-7.2-0 $" ; :command_line = "/apps/process/bin/sgpokm -i 20100306" ; :facility_id = "external" ; :site_id = "sgp" ; :site_description_1 = "Campbell Scientific CR10T data loggers are used in each remote station" ; :site_description_2 = "Each remote station generates a data message every 15 minutes." ; :site_description_3 = "Each message is a composite of three 5-minute averages of most variables" ; :site_description_4 = "and a 15-minute average of the remaining variables" ; :site_description_5 = "site slopes are less than 5 degrees," ; :site_description_6 = "with a minimum of obstructions that impede ventilation" ; :site_description_7 = "each site must be accessible by vehicle in all weather" ; :site_description_8 = "vegetation at the site should be uniform and low" ; :site_description_9 = "station height is measured in meters above mean sea level" ; :stations_comment_1 = "The lat/lon/alt measurements of all stations were changed in June, 1996 to update and correct previous values" ; :stations_comment_2 = "3 ARS sites - NINN, ACME and APAC are included in the ingest" ; :reference_1 = "The Oklahoma Mesonet Home Page - http://okmesonet.ocs.ou.edu/" ; :reference_2 = "The Oklahoma Mesonet: A Technical Overview" ; :reference_3 = "(Brock, Crawford, Elliott, Cuperus, Stadler, Johnson and Eilts)" ; :reference_4 = "Published in the Journal of Atmospheric and Oceanic Technology, Feb. 1995, Vol 12, No. 1, pp. 5-19." ; :input_files = "sgpokmX1.00.yyyymmdd.hhmmss.raw" ; :data_organization = "irgrid" ; :data_level = "a1" ; :averaging_interval = "5 mins" ; :averaging_interval_explanation1 = "The average for a given time represents the value at the end of the averaging interval." ; :averaging_interval_explanation2 = "e.g. if the sampling interval is 3 seconds, the average at hour 1400 represents the average of the values sampled from 13:55:03 to 14:00:00." ; :data_volume = "0.9 Mbytes for 12 hours" ; :missing_data_flags1 = "-996.0 indicates stations for which the sensors are not installed or out-of-bounds at the routine measurement times." ; :missing_data_flags2 = "-998.0 indicates the parameters are not measured at that time." ; :missing_data_flags3 = "-9999.0 or -999.0 indicates that the data is missing due to failure or is suspect." ; :zeb_platform = "sgp05okmX1.a1" ; :history = "created by user dsmgr on machine xact.xdc.arm.gov at 9-Mar-2010,19:55:23, using $State: zebra-zeblib-4.19-1.sol5_10 $" ; }