SGP/SIRS/E13 - Reprocess: incorrect calibrations

After a long data gap on 5/25/2005, presumably a power outage, the following datastreams 
were showing incorrect values as well as incorrect calibration coefficients in the 
datalogger program:
down_long_hemisp_shaded (downwelling PIR instrument)
up_long_hemisp (upwelling PIR instrument)
short_direct_normal (NIP instrument)

The SIRS.E13 datalogger was power cycled (6/2/2005 2200GMT) and the correct program loaded 
into the SIRS datalogger and storage module.

The data during this time range can be recalibrated as follows:
First divide value by incorrectly applied cal coeff (first number) then multiply by 
correct cal coeff (second number)
  short_direct_normal           120.28	124.58
  up_long_netir                 0.2386	0.2595
  down_long_netir               0.3052	0.2304

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	-18.3400 W/m^2\n,
	k1	0.2595 W/(m^2*uV)\n,
	k2	1.0380 unitless\n,
	k3	-2.7420 unitless\n,
	kr	0.0007044 K/uV\n,

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	-11.6300 W/m^2\n,
	k1	0.2304 W/(m^2*uV)\n,
	k2	1.0190 unitless\n,
	k3	-2.4230 unitless\n,
	kr	0.0007044 K/uV\n,

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
• Instantaneous Case Temperature(inst_up_long_case_temp)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
  Deviation(up_long_hemisp_std)
• Instantaneous Dome Temperature(inst_up_long_dome_temp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)

• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
• Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
• Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
  Voltage(inst_direct_normal)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)

• null(Raw data stream - documentation not supported)

SGP/SIRS/E13 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in December 2003. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)