SGP/MFRSR/E13 - Reprocess: Angstrom Exponent Error

The data used to calculate the angstrom exponent was incorrect.  These
fields should not be used.  All other fields are considered good.

• Angstrom exponent(barnard_angstrom_exponent)
• Angstrom exponent(michalsky_angstrom_exponent)

SGP/AOS/C1/ - Pump failure

The ratio of CCN to CN started to noticeably decline around 20070901. After a site visit 
on 20071023, the mentor found a problem with the instrument flows and diaphragm pump.  The 
instrument was return to Boulder, CO for repair. The diaphragm pump was repaired and the 
flows re-calibrated. The instrument was returned to service 20071113. 

The CCN data show qualitative changes in the number of droplets formed with changes in 
supersaturation. Because the pump was not working properly and the flows were likely 
incorrect, the numbers are not quantitative.

• AOS CCN sample supersaturation calculated by model)(CCN_ss_calc)
• CCN temperature gradient(CCN_Temperature_Gradient)
• AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
• AOS CCN sample pressure(CCN_P_sample)
• AOS CCN sample saturation setpoint value reported by instrument(CCN_ss_set)
• AOS CCN volumetric flowrate of sheath air(CCN_Q_sheath)
• AOS number concentration of CCN(N_CCN)
• AOS CCN volumetric flowrate of sample air(CCN_Q_sample)
• AOS CCN number concentration by bin(N_CCN_dN)

SGP/MFRSR/E13 - Shadowband misalignment

The E13 MFRSR developed a shading problem on or about 05/04.  (The exact date when this 
problem started is difficult to pin down exactly.) The shading problem is easy to identify 
on a clear day because plots of direct beam and diffuse irradiance versus time become 
"fuzzy".  The total irradiance is not affected.
  

In response to the shading problem, a whole sequence of events then ensued: these actions 
were designed to solve the shading problem but did not succeed until the very end.

Here's a rundown of what took place:

98/05/11 - shadowband adjustment was made at 1544 GMT
         - this adjustment corrected the shading problem that 
           occurred in the morning, but inadvertently caused
           a PM shading problem 
98/05/20 - shadowband adjustment at 1804 GMT
98/05/21 - shadowband adjustment at 1630 GMT
98/06/01 - shadowband adjustment at 1910 GMT
98/06/02 - shadowband adjustmnet at 1550 GMT

Alas, these adjustments did not solve the shading problem and
it seemed to get worse (for example, on 06/11 the shading 
is VERY BAD from sunup until about 1500 LST).

98/06/16 - shadowband adjustment at 1715 GMT

This final adjustment seems to a solved the problem!

• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)

• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)

• rejected points for the final fit for the Direct Narrowband Filter1, Michalsky(michalsky_rejected_filter1)
• rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter6, Barnard(barnard_lnI_filter6)
• log(irradiance) for the Direct Broadband, Barnard(barnard_lnI_broadband)
• rejected points for the final fit for the Direct Narrowband Filter6, Barnard(barnard_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter1, Michalsky(michalsky_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter5, Barnard(barnard_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter2, Barnard(barnard_rejected_filter2)
• log(irradiance) for the Direct Broadband, Michalsky(michalsky_lnI_broadband)
• log(irradiance) for the Direct Narrowband Filter4, Barnard(barnard_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter3, Barnard(barnard_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter4, Barnard(barnard_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter1, Barnard(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2)
• rejected points for the final fit for the Direct Narrowband Filter5, Michalsky(michalsky_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1)
• rejected points for the final fit for the Direct Narrowband Filter6, Michalsky(michalsky_rejected_filter6)
• rejected points for the final fit for the Direct Narrowband Filter5, Barnard(barnard_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5)
• rejected points for the final fit for the Direct Narrowband Filter2, Michalsky(michalsky_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter4, Michalsky(michalsky_rejected_filter4)
• rejected points for the final fit for the Direct Broadband, Michalsky(michalsky_rejected_broadband)
• rejected points for the final fit for the Direct Narrowband Filter3, Michalsky(michalsky_rejected_filter3)

• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(barnard_good_fraction_filter1)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(barnard_good_fraction_filter5)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(michalsky_good_fraction_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(barnard_good_fraction_filter4)
• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• Angstrom exponent(michalsky_angstrom_exponent)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4)
• Angstrom exponent(barnard_angstrom_exponent)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)