netcdf sgp15swfanalsirs1longE36.c1.20150517.123000 {
dimensions:
	time = UNLIMITED ; // (48 currently)
	namelen = 64 ;
variables:
	int base_time ;
		base_time:long_name = "Beginning Time of File" ;
		base_time:units = "seconds since 1970-01-01 00:00:00 00:00" ;
		base_time:calendar_date = "Year 2015 Month 05 Day 17 12:30:00" ;
	double time_offset(time) ;
		time_offset:long_name = "Time Offset from base_time" ;
		time_offset:units = "seconds" ;
		time_offset:comment = "This time stamp is at the beginning of the 15 minute averaging interval." ;
	int base_time_LST ;
		base_time_LST:long_name = "Beginning Time of File (LST)" ;
		base_time_LST:units = "seconds since 1970-01-01 00:00:00 00:00" ;
		base_time_LST:calendar_date = "Year 2015 Month 05 Day 17 05:30:00" ;
		base_time_LST:comment = "LST is based solely on longitude and does not include any politically-based adjustments." ;
	double time_offset_LST(time) ;
		time_offset_LST:long_name = "Time Offset from base_time_LST" ;
		time_offset_LST:units = "seconds" ;
		time_offset_LST:comment = "Time stamp is at the beginning of the 15-minute averaging interval.  LST is based solely on longitude and does not include any politically-based adjustments." ;
	char site(namelen) ;
		site:long_name = "Site Identification" ;
		site:comment = "none" ;
	short nsamples_cloudfraction(time) ;
		nsamples_cloudfraction:long_name = "Number of 1-minute Cloud Fraction Estimates in the 15-minute Interval (Ncf)" ;
		nsamples_cloudfraction:units = "unitless" ;
		nsamples_cloudfraction:missing_value = "n/a" ;
		nsamples_cloudfraction:comment = "none" ;
	short nsamples_gswfluxdn_clearskyfit(time) ;
		nsamples_gswfluxdn_clearskyfit:long_name = "Number of 1-minute Clear-sky Fit Downwelling Global Shortwave Irradiance Estimates in the 15-minute Interval (Ncsw)" ;
		nsamples_gswfluxdn_clearskyfit:units = "unitless" ;
		nsamples_gswfluxdn_clearskyfit:missing_value = "n/a" ;
		nsamples_gswfluxdn_clearskyfit:comment = "none" ;
	short nsamples_sswfluxdn_measured(time) ;
		nsamples_sswfluxdn_measured:long_name = "Number of 1-minute Measured Downwelling Summed Shortwave Irradiances in the 15-minute Interval (Nssw)" ;
		nsamples_sswfluxdn_measured:units = "unitless" ;
		nsamples_sswfluxdn_measured:missing_value = "n/a" ;
		nsamples_sswfluxdn_measured:comment = "none" ;
	short nsamples_clearsky_detection(time) ;
		nsamples_clearsky_detection:long_name = "Number of 1-minute Clear-sky Detections in the 15-minute Interval (Nclr)" ;
		nsamples_clearsky_detection:units = "unitless" ;
		nsamples_clearsky_detection:missing_value = "n/a" ;
		nsamples_clearsky_detection:comment = "none" ;
	float solar_cos_z(time) ;
		solar_cos_z:long_name = "Arithmetic Average Cosine of the Solar Zenith Angle Z (CosZ)" ;
		solar_cos_z:units = "unitless" ;
		solar_cos_z:missing_value = "-9999.0" ;
		solar_cos_z:C_format = "%10.6f" ;
		solar_cos_z:FORTRAN_format = "F10.6" ;
		solar_cos_z:comment = "none" ;
	float sun_earth_distance(time) ;
		sun_earth_distance:long_name = "Arithmetic Average Distance from the Earth to the Sun (au)" ;
		sun_earth_distance:units = "Astronomical Units" ;
		sun_earth_distance:missing_value = "-9999.0" ;
		sun_earth_distance:C_format = "%10.6f" ;
		sun_earth_distance:FORTRAN_format = "F10.6" ;
		sun_earth_distance:comment = "none" ;
	float cloudfraction(time) ;
		cloudfraction:long_name = "Estimated Average Fractional Sky Cover over the Hemispheric Dome (cf)" ;
		cloudfraction:units = "unitless" ;
		cloudfraction:missing_value = "n/a" ;
		cloudfraction:C_format = "%10.2f" ;
		cloudfraction:FORTRAN_format = "F10.2" ;
		cloudfraction:comment = "none" ;
	float gswfluxdn_measured(time) ;
		gswfluxdn_measured:long_name = "Measured Downwelling Global Shortwave Irradiance (gsw)" ;
		gswfluxdn_measured:units = "W/m^2" ;
		gswfluxdn_measured:missing_value = "-9999.0" ;
		gswfluxdn_measured:C_format = "%10.1f" ;
		gswfluxdn_measured:FORTRAN_format = "F10.1" ;
		gswfluxdn_measured:comment = "none" ;
	float gswfluxdn_clearskyfit(time) ;
		gswfluxdn_clearskyfit:long_name = "Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)" ;
		gswfluxdn_clearskyfit:units = "W/m^2" ;
		gswfluxdn_clearskyfit:missing_value = "-9999.0" ;
		gswfluxdn_clearskyfit:C_format = "%10.1f" ;
		gswfluxdn_clearskyfit:FORTRAN_format = "F10.1" ;
		gswfluxdn_clearskyfit:comment = "none" ;
	float gswfluxdn_cloudeffect(time) ;
		gswfluxdn_cloudeffect:long_name = "Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)" ;
		gswfluxdn_cloudeffect:units = "W/m^2" ;
		gswfluxdn_cloudeffect:missing_value = "-9999.0" ;
		gswfluxdn_cloudeffect:C_format = "%10.1f" ;
		gswfluxdn_cloudeffect:FORTRAN_format = "F10.1" ;
		gswfluxdn_cloudeffect:comment = "none" ;
	float difswfluxdn_measured(time) ;
		difswfluxdn_measured:long_name = "Measured Downwelling Diffuse Shortwave Irradiance (dif)" ;
		difswfluxdn_measured:units = "W/m^2" ;
		difswfluxdn_measured:missing_value = "-9999.0" ;
		difswfluxdn_measured:C_format = "%10.1f" ;
		difswfluxdn_measured:FORTRAN_format = "F10.1" ;
		difswfluxdn_measured:comment = "none" ;
	float difswfluxdn_clearskyfit(time) ;
		difswfluxdn_clearskyfit:long_name = "Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)" ;
		difswfluxdn_clearskyfit:units = "W/m^2" ;
		difswfluxdn_clearskyfit:missing_value = "-9999.0" ;
		difswfluxdn_clearskyfit:C_format = "%10.1f" ;
		difswfluxdn_clearskyfit:FORTRAN_format = "F10.1" ;
		difswfluxdn_clearskyfit:comment = "none" ;
	float difswfluxdn_cloudeffect(time) ;
		difswfluxdn_cloudeffect:long_name = "Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)" ;
		difswfluxdn_cloudeffect:units = "W/m^2" ;
		difswfluxdn_cloudeffect:missing_value = "-9999.0" ;
		difswfluxdn_cloudeffect:C_format = "%10.1f" ;
		difswfluxdn_cloudeffect:FORTRAN_format = "F10.1" ;
		difswfluxdn_cloudeffect:comment = "none" ;
	float dirfluxdn_measured(time) ;
		dirfluxdn_measured:long_name = "Measured Downwelling Direct Shortwave Irradiance (dir)" ;
		dirfluxdn_measured:units = "W/m^2" ;
		dirfluxdn_measured:missing_value = "-9999.0" ;
		dirfluxdn_measured:C_format = "%10.1f" ;
		dirfluxdn_measured:FORTRAN_format = "F10.1" ;
		dirfluxdn_measured:comment = "This quantity is the pyrheliometer measurement times the cosine of the solar zenith angle." ;
	float dirfluxdn_clearskyfit(time) ;
		dirfluxdn_clearskyfit:long_name = "Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)" ;
		dirfluxdn_clearskyfit:units = "W/m^2" ;
		dirfluxdn_clearskyfit:missing_value = "-9999.0" ;
		dirfluxdn_clearskyfit:C_format = "%10.1f" ;
		dirfluxdn_clearskyfit:FORTRAN_format = "F10.1" ;
		dirfluxdn_clearskyfit:comment = "This quantity is an estimate of the pyrheliometer measurement times the cosine of the solar zenith angle in the absence of clouds." ;
	float difratiodn_measured(time) ;
		difratiodn_measured:long_name = "Ratio of Measured Downwelling Diffuse Shortwave Irradiance to Measured Downwelling Global Shortwave Irradiance (difr)" ;
		difratiodn_measured:units = "unitless" ;
		difratiodn_measured:missing_value = "-9999.0" ;
		difratiodn_measured:C_format = "%10.5f" ;
		difratiodn_measured:FORTRAN_format = "F10.5" ;
		difratiodn_measured:comment = "none" ;
	float difratiodn_measured_stdev(time) ;
		difratiodn_measured_stdev:long_name = "Average over the interval of the standard deviation of difratiodn_measured computed using a 3-5 sample window centered at each 1-min sample" ;
		difratiodn_measured_stdev:units = "unitless" ;
		difratiodn_measured_stdev:missing_value = "-9999.0" ;
		difratiodn_measured_stdev:C_format = "%10.5f" ;
		difratiodn_measured_stdev:FORTRAN_format = "F10.5" ;
		difratiodn_measured_stdev:comment = "This variable is used to identify overcast cloud conditions." ;
	float difratiodn_clearskyfit(time) ;
		difratiodn_clearskyfit:long_name = "Ratio of Clear-sky Fit Estimated Downwelling Diffuse Shortwave Irradiance to Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cdifr)" ;
		difratiodn_clearskyfit:units = "unitless" ;
		difratiodn_clearskyfit:missing_value = "-9999.0" ;
		difratiodn_clearskyfit:C_format = "%10.5f" ;
		difratiodn_clearskyfit:FORTRAN_format = "F10.5" ;
		difratiodn_clearskyfit:comment = "none" ;
	float difcloudeffect_normalized(time) ;
		difcloudeffect_normalized:long_name = "Ratio of Measured minus Clear-sky Fit Estimated Downwelling Diffuse Shortwave Irradiance to Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (difcld)" ;
		difcloudeffect_normalized:units = "unitless" ;
		difcloudeffect_normalized:missing_value = "-9999.0" ;
		difcloudeffect_normalized:C_format = "%10.5f" ;
		difcloudeffect_normalized:FORTRAN_format = "F10.5" ;
		difcloudeffect_normalized:comment = "none" ;
	float sswfluxdn_measured(time) ;
		sswfluxdn_measured:long_name = "Measured Downwelling Summed Shortwave Irradiance (dirfluxdn_measured+diffluxdn_measured) (ssw)" ;
		sswfluxdn_measured:units = "W/m^2" ;
		sswfluxdn_measured:missing_value = "-9999.0" ;
		sswfluxdn_measured:C_format = "%10.1f" ;
		sswfluxdn_measured:FORTRAN_format = "F10.1" ;
		sswfluxdn_measured:comment = "none" ;
	float sswfluxdn_clearskyfit(time) ;
		sswfluxdn_clearskyfit:long_name = "Clear-sky Fit Estimated Downwelling Summed Shortwave Irradiance (dirfluxdn_clearskyfit+diffluxdn_clearskyfit) (cssw)" ;
		sswfluxdn_clearskyfit:units = "W/m^2" ;
		sswfluxdn_clearskyfit:missing_value = "-9999.0" ;
		sswfluxdn_clearskyfit:C_format = "%10.1f" ;
		sswfluxdn_clearskyfit:FORTRAN_format = "F10.1" ;
		sswfluxdn_clearskyfit:comment = "none" ;
	float sswfluxdn_cloudeffect(time) ;
		sswfluxdn_cloudeffect:long_name = "Difference: sswfluxdn_measured - sswfluxdn_clearskyfit (sswfcg)" ;
		sswfluxdn_cloudeffect:units = "W/m^2" ;
		sswfluxdn_cloudeffect:missing_value = "-9999.0" ;
		sswfluxdn_cloudeffect:C_format = "%10.1f" ;
		sswfluxdn_cloudeffect:FORTRAN_format = "F10.1" ;
		sswfluxdn_cloudeffect:comment = "none" ;
	float albedosw_measured(time) ;
		albedosw_measured:long_name = "Measured Surface Albedo from Shortwave Irradiance Measurements (alb)" ;
		albedosw_measured:units = "unitless" ;
		albedosw_measured:missing_value = "-9999.0" ;
		albedosw_measured:C_format = "%10.5f" ;
		albedosw_measured:FORTRAN_format = "F10.5" ;
		albedosw_measured:comment = "Albedo value includes an upwelling diffuse shortwave irradiance measurement component." ;
	float albedosw_clearskyfit(time) ;
		albedosw_clearskyfit:long_name = "Clear-sky Fit Estimated Surface Albedo from Shortwave Irradiance Measurements (calb)" ;
		albedosw_clearskyfit:units = "unitless" ;
		albedosw_clearskyfit:missing_value = "-9999.0" ;
		albedosw_clearskyfit:C_format = "%10.5f" ;
		albedosw_clearskyfit:FORTRAN_format = "F10.5" ;
		albedosw_clearskyfit:comment = "Albedo value includes an upwelling diffuse shortwave irradiance measurement component." ;
	float guvbdn_measured(time) ;
		guvbdn_measured:long_name = "Measured Downwelling Global UVB Irradiance (guvb)" ;
		guvbdn_measured:units = "unitless" ;
		guvbdn_measured:missing_value = "-9999.0" ;
		guvbdn_measured:C_format = "%10.5f" ;
		guvbdn_measured:FORTRAN_format = "F10.5" ;
		guvbdn_measured:comment = "none" ;
	float guvbdn_clearskyfit(time) ;
		guvbdn_clearskyfit:long_name = "Clear-sky Fit Estimated Downwelling Global UVB Irradiance (cguvb)" ;
		guvbdn_clearskyfit:units = "unitless" ;
		guvbdn_clearskyfit:missing_value = "-9999.0" ;
		guvbdn_clearskyfit:C_format = "%10.5f" ;
		guvbdn_clearskyfit:FORTRAN_format = "F10.5" ;
		guvbdn_clearskyfit:comment = "none" ;
	float lat ;
		lat:long_name = "north latitude" ;
		lat:units = "degrees" ;
		lat:valid_range = -90.f, 90.f ;
		lat:C_format = "%7.3f" ;
		lat:FORTRAN_format = "F7.3" ;
		lat:comment = "none" ;
	float lon ;
		lon:long_name = "east longitude" ;
		lon:units = "degrees" ;
		lon:valid_range = -180.f, 180.f ;
		lon:C_format = "%8.3f" ;
		lon:FORTRAN_format = "F8.3" ;
		lon:comment = "none" ;
	float alt ;
		alt:long_name = "altitude" ;
		alt:units = "meters above Mean Sea Level" ;
		alt:C_format = "%6.1f" ;
		alt:FORTRAN_format = "F6.1" ;
		alt:comment = "none" ;

// global attributes:
		:Date = "Tue Jun 23 17:46:21 GMT 2015" ;
		:Fitmode = "01" ;
		:Version = "$State: vap-swfanal1long-3.12-0.sol5_10$" ;
		:Number_Input_Platforms = "1" ;
		:Input_Platforms = "sgpsirsE36.b1" ;
		:Input_Platforms_Versions = "/usr/lib/ld.so.1" ;
		:zeb_platform = "sgp15swfanalsirs1longE36.c1" ;
		:Command_Line = "swfanal1long -s YYYYMMDD -e YYYYMMDD SITE QCFILE ZIPPING" ;
		:contact = "Algorithm Originator: Dr. Charles N. Long" ;
		:comment = "There are no quality control flags for these derived 15-minute data.  The overall quality can be assessed through the swfanal1long files and the number of counts in the variables with the prefix nsamples_.  fitmode=01 indicates daily fit, fitmode=00 indicates 1-fit" ;
}