| Subject: | SGP/QCRAD/E4 - UPS failure |
| DataStreams: | sgpqcrad1longE4.c1, sgpqcrad1longE4.c2, sgpqcrad1longE4.s1, sgpqcrad1longE4.s2
|
| Description: | On Jan 13th approximately 1400GMT the UPS failed at E4. This affected both the global and
tracker mounted instruments. The affected measurements are down_short_hemisp(PSP),
down_short_diffuse(8-48) and direct_normal(NIP) measurements. The PSP down_short_hemisp
measurement doesn't rely on the tracker but is power ventilated and is adversely affected
by
daytime solar heating when the ventilator power fails.
Documented in instrument DQR D080212.3 |
| Suggestions: | null |
| Measurements: | sgpqcrad1longE4.c1: - Down-welling unshaded pyranometer voltage(down_short_hemisp)
- Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
- Quality check results on field: Best Estimate Global Downwelling Shortwave
Hemispheric Irradiance(BestEstimate_down_short_hemisp) - Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
more
sgpqcrad1longE4.s1: - Quality check results on field: Best Estimate Global Downwelling Shortwave
Hemispheric Irradiance(BestEstimate_down_short_hemisp) - Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
- Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
more
sgpqcrad1longE4.c2: - Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
- Down-welling unshaded pyranometer voltage(down_short_hemisp)
- Quality check results on field: Best Estimate Global Downwelling Shortwave
Hemispheric Irradiance(BestEstimate_down_short_hemisp) - Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
more
sgpqcrad1longE4.s2: - Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
- Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
- Quality check results on field: Best Estimate Global Downwelling Shortwave
Hemispheric Irradiance(BestEstimate_down_short_hemisp)
more
|