Description: | During the entire India deployment the Skyrad system was configured with incorrect
calibration coefficients for the shortwave instruments. The program hadn't been updated since
the previous deployment in the Azores.
The following instrument data were reprocessed with the following correction multipliers:
PIR1-DIR(down_long_hemisp1): OK, no correction required
PIR2-DIR(down_long_hemisp2): OK, no correction required
Diffuse 8-48 (down_short_diffuse): 116.95(correct)/120.91(incorrect) = .96725
NIP (short_direct_normal): 127.03(correct)/124.97(incorrect) = 1.01648
PSP-DS (down_short_hemsip): 111.29(correct)/108.48(incorrect) = 1.02590
IRT: calibration should be validated by instrument mentor (Vic Morris): mult=26,
offset=173.2
Correct serial numbers:
Diffuse 8-48 (down_short_diffuse): 34066
NIP (short_direct_normal): 34135E6
PSP-DS (down_short_hemsip): 33942F3
The data were recalibrated and reprocessed. The corrected data were archived in February
2013. |
Measurements: | pghskyrad60sM1.b1: - Sky Infra Red Temperature Maxima(sky_ir_temp_max)
- Sky infrared temperature, standard deviation(sky_ir_temp_std)
- Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
- Down-welling unshaded pyranometer voltage(down_short_hemisp)
- Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
- Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
- Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
Deviation(down_short_hemisp_std) - Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
- Sky Infra-Red Temperature Minima(sky_ir_temp_min)
- Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
- Sky Infra-Red Temperature(sky_ir_temp)
- Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
- Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
Deviation(down_short_diffuse_hemisp_std) - Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
- Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
- Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
more
pghskyrad20sM1.a0: - Instantaneous direct normal shortwave irradiance, pyrheliometer thermopile
voltage(inst_direct_normal) - Instantaneous Sky/Cloud Infrared(inst_sky_ir_signal)
- Instantaneous uncorrected downwelling shortwave diffuse, shaded pyranometer
thermopile voltage(inst_diffuse) - Instantaneous Downwelling Hemispheric Shortwave, Pyranometer Thermopile Voltage(inst_global)
more
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