TWP/GNDRAD/C1 - GNDRAD inverted for radiometer comparison

The GNDRAD PIR and PSP were inverted during this period for comparison with replacement 
instruments.

Data are not recoverable.

• up_short_hemisp_max
• up_short_hemisp_std
• psp1_min
• pir1_min
• up_long_hemisp
• psp1_mean
• up_short_hemisp_min
• up_long_hemisp_std
• up_long_hemisp_max
• psp1_sd
• pir1_max
• up_short_hemisp
• psp1_max
• pir1_mean
• up_long_hemisp_min
• pir1_sd