netcdf sgpbsrncalcC1.c1.940813.000000 {
dimensions:
	time = UNLIMITED ; // (1440 currently)
variables:
	int base_time ;
		base_time:string = "13-Aug-94,0:00:00 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:units = "seconds since 1994-08-13 00:00:00 0:00" ;
		time_offset:long_name = "Time offset from base_time" ;
	float nip(time) ;
		nip:units = "W/m2" ;
		nip:long_name = "Observed direct-beam normal solar irradiance" ;
		nip:missing_value = "-9999" ;
		nip:accuracy = "10 W/m2, max at high noon in mid-summer" ;
		nip:precision = "10 W/m2, max at high noon in mid-summer" ;
		nip:calibration_stability = "less than 1% over period of 1 year" ;
	float psp1(time) ;
		psp1:units = "W/m2" ;
		psp1:long_name = "CALCULATED downwelling hemispheric diffuse solar irradiance" ;
		psp1:formula = "psp1 is calculated by:  psp2 - nip*cos(solar_zenith_angle)" ;
		psp1:formula_comment = "Negative psp2 and nip values are used as such in this calculation" ;
		psp1:missing_value = "-9999" ;
		psp1:accuracy = "2% for OBSERVED psp1" ;
		psp1:precision = "2% for OBSERVED psp1" ;
		psp1:calibration_stability = "less than 1% over period of 1 year for OBSERVED psp1" ;
	float psp2(time) ;
		psp2:units = "W/m2" ;
		psp2:long_name = "Observed downwelling hemispheric total solar irradiance (direct+diffuse)" ;
		psp2:missing_value = "-9999" ;
		psp2:accuracy = "2%" ;
		psp2:precision = "2%" ;
		psp2:calibration_stability = "less than 1% over period of 1 year" ;
	float cos_solar_zenith(time) ;
		cos_solar_zenith:units = "unitless" ;
		cos_solar_zenith:long_name = "cosine of the solar zenith angle used to estimate psp1" ;
		cos_solar_zenith:comments = "uses low precision formulas for the solar coordinates, Astronomical Almanac 1990" ;
	float qcmin1-24(time) ;
		qcmin1-24:units = "unitless" ;
		qcmin1-24:long_name = "low value flag for raw nip, psp1, or psp2 fields (a0 data)" ;
		qcmin1-24:interpretation = "if .ge. 1 then at least one field is flagged as too low, 0 otherwise" ;
		qcmin1-24:missing_value = "-9999" ;
	float qcmax1-24(time) ;
		qcmax1-24:units = "unitless" ;
		qcmax1-24:long_name = "high value flag for raw nip, psp1, or psp2 fields (a0 data)" ;
		qcmax1-24:interpretation = "if .ge. 1 then at least one field is flagged as too high, 0 otherwise" ;
		qcmax1-24:missing_value = "-9999" ;
	float qcdelta1-24(time) ;
		qcdelta1-24:units = "unitless" ;
		qcdelta1-24:long_name = "flags large differences in adjacent values for battery voltage (a0 data)" ;
		qcdelta1-24:interpretation = "if .ge. 1 then difference is too large, 0 otherwise" ;
		qcdelta1-24:missing_value = "-9999" ;
	float lat ;
		lat:long_name = "north latitude" ;
		lat:units = "degrees" ;
		lat:valid_range = -90.f, 90.f ;
	float lon ;
		lon:long_name = "east longitude" ;
		lon:units = "degrees" ;
		lon:valid_range = -180.f, 180.f ;
	float alt ;
		alt:long_name = "altitude" ;
		alt:units = "" ;

// global attributes:
		:Date = "Tue Aug 16 02:17:18 1994" ;
		:Version = "$Id: sgpbsrn1calc.c,v 1.2 1993/07/23 21:21:52 d3a038 Exp d3g604 $" ;
		:Command_Line = "sgpbsrn1calc -s 940813.000000 -e 940814.000000" ;
		:Input_Platform\(s\) = "sgpbsrnC1.a1" ;
		:BW_Version = "Release_1_9" ;
		:site_id = "SGP" ;
		:facility_id = "Central Facility" ;
		:sample_integration_period = "1 second" ;
		:averaging_interval = "60 seconds" ;
		:comments_line_1 = "This is an interim platform until the shading disk on the" ;
		:comments_line_2 = "BSRN is fixed.  The nip and  psp2 fields are instrument" ;
		:comments_line_3 = "observations which are copied directly from sgpbsrn1.a1." ;
		:comments_line_4 = "The psp1 field reported here is NOT observed, it is calculated." ;
		:comments_line_5 = "Altitude is in meters above MSL" ;
		:zeb_platform = "sgpbsrncalcC1.c1" ;
		:history = "created by Zeb DataStore, 16-Aug-94,2:17:18, DFA_NetCDF.c,v 3.19\n",
			"" ;
}