E9 NIP affected by precipitation

Comparison of the dowelling hemishperic solar broadband flux estimated
from the unshaded PSP (down_short_hemisp) and that derived from the 
combination of the NIP (short_direct_normal) and shaded PSP
(down_short_diffuse_hemisp) showed significant differences (greater
than 100 W/m^2) at times on June 23, 1997. These differences appear
to be due to questionable data from the NIP (short_direct_normal) that
may have been caused by rainfall on that day. The NIP values recorded 
values as low as -15 W/m^2 in proximity to when the SMOS recorded 
precipitation. After the first precipitation event, the NIP appeared
to be recording lower values during sunnier periods that may be due 
to collected precipitation in the NIP affecting the amount of solar 
radiation reaching the sensor.

• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
• Flag fields with *4 returned from callang(flag_nighttime1-24)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• Flag fields with *1 returned from callang(flag_zero_divisor1-24)
• Flag fields with *2 returned from callang(flag_ln_error1-24)
• Thermistor Excitation Voltage, Data Logger(therm_volt)
• North Latitude(lat)
• Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
• Data logger supply voltage(logger_volt)
• base time in epoch(base_time)
• -180.0 - +180.0(alt)
• Ventilated Pyrgeometer Dome Temperature(down_long_dome_temp)
• MFRSR channels(channel)
• Data Logger Temperature(logger_temp)
• Time offset from base_time(time_offset)
• Diffuse Hemispheric Irradiance, MFRSR(diffuse_hemisp_narrowband)
• MFRSR Detector Temperature(mfrsr_temp)
• Flag fields with *3 returned from callang(flag_zero_cosine1-24)
• 25 meter Longwave Case Temperature, Pyrgeometer(up_long_case_temp)
• 10 meter Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• 10 meter Longwave Dome Temperature, Pyrgeometer(up_long_dome_temp)
• lon(lon)
• Ventilated Pyrgeometer Case Temperature(down_long_case_temp)
• Downwelling Longwave Diffuse Hemispheric Irradiance, Ventilated Pyrgeometer(down_long_diffuse_hemisp)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Direct Normal Irradiance, MFRSR(direct_norm_broadband)
• Hemispheric broadband irradiance(hemisp_broadband)
• Diffuse Hemispheric Broadband Irradiance, offset corrected(diffuse_hemisp_broadband)
• Hemispheric Irradiance, MFRSR(hemisp_narrowband)