SGP/SIRS/E3 -  Reprocessed and Corrected: Wrong Calibration Coefficients

DATA REPROCESSED and CORRECTED: 


No data were collected from 6/7/2006 0000 to 6/14/2006 1612 due to hardware problems. When 
data resumed on 6/14, all calibration coefficients and serial numbers were for different 
instruments, possibly due to incorrect program loaded on storage module. Correct program 
reloaded by PM/CM Techs on 7/12 1830 GMT. The data were reprocessed to apply the correct 
calibration coefficients for shortwave and longwave data.

The data were archived in September 2016. Please retrieve the reprocessed data for use in 
your analysis.

You may find these data using the ARM Discovery tool at the following link:
http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E1


ORIGINAL DQR CATEGORY: Red( Incorrect)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-09

REPROCESS IDENTIFICATION NUMBER: RID 301

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--- ORIGINAL DQR DESCRIPTION ---
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No data were collected from 6/7/2006 0000 to 6/14/2006 1612 due to hardware problems.  
When data resumed on 6/14, ALL calibration coefficients and serial numbers were for 
different instruments possibly due to incorrect program loaded on storage module.  Correct 
program reloaded by PM/CM techs on 7/12 1830GMT

Shortwave data can be corrected with a simple multiplier as shown below.  Longwave data 
must be reprocessed from temperature and netIR data.

The data can be recalibrated as follows:
First divide value by incorrectly applied cal coeff (first number) then multiply by 
correct cal coeff (second number). 
  down_short_diffuse_hemisp	109.52	110.31
  up_short_hemisp		111.61	109.80
  short_direct_normal		115.73	118.82
  down_short_hemisp		122.47	117.34
  up_long_netir 		0.26525 0.2564
  down_long_netir		0.27173	0.2695

Reapply cal coeffs below using up_long_netIR(uV), inst_up_long_dome_temp(K),  
inst_up_long_dome_temp(K) using procedure described in SIRS instrument manual.
  up_long_hemisp
	k0	0.00 W/m^2
	k1	0.2564 W/(m^2*uV)
	k2	1.00 unitless
	k3	-4.00 unitless
	kr	0.000 K/uV

Reapply cal coeffs below using down_long_netIR(uV),inst_down_long_dome_temp
(K),inst_down_long_dome_temp(K).
  down_long_hemisp_shaded	
	k0	0.00 W/m^2
	k1	0.2695 W/(m^2*uV)
	k2	1.00 unitless
	k3	-4.00 unitless
	kr	0.000 K/uV

• Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance Pyrgeometer(inst_up_long_dome_resist)
• Instantaneous direct normal shortwave irradiance, pyrheliometer thermopile
  voltage(inst_direct_normal)
• Instantaneous Upwelling Pyrgeometer Thermopile Pyrgeometer(inst_up_long_hemisp_tp)
• Instantaneous uncorrected downwelling shortwave diffuse, shaded pyranometer
  thermopile voltage(inst_diffuse)
• Instantaneous Downwelling Hemispheric Shortwave, Pyranometer Thermopile Voltage(inst_global)
• Instantaneous downwelling pyrgeometer dome thermistor resistance, shaded
  pyrgeometer(inst_down_long_shaded_dome_resist)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
• Instantaneous downwelling pyrgeometer thermopile voltage, shaded pyrgeometer(inst_down_long_hemisp_shaded_tp)

• Upwelling longwave hemispheric irradiance, pyrgeometer, maxima(up_long_hemisp_max)
• Instantaneous Dome Temperature(inst_up_long_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
• Instantaneous upwelling pyrgeometer case thermistor temperature, pyrgeometer(inst_up_long_case_temp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
  Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
• Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Downwelling longwave hemispheric irradiance, shaded pyrgeometer, standard
  deviation(down_long_hemisp_shaded_std)
• Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
• Instantaneous Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_netir)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
• Upwelling shortwave hemispheric irradiance, pyranometer, minima(up_short_hemisp_min)
• Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
• Instantaneous downwelling pyrgeometer case thermistor temperature, shaded
  pyrgeometer(inst_down_long_shaded_case_temp)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Downwelling longwave hemispheric irradiance, shaded pyrgeometer(down_long_hemisp_shaded)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Downwelling longwave hemispheric net infrared(down_long_netir)
• 10 meter Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)