| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/03/2007 | 1400 | 04/22/2008 | 2052 |
| Subject: | SGP/QCRAD/C1 - Sensor cable problem |
| DataStreams: | sgpqcradbeflux1longC1.s1, sgpqcrad1longC1.c2, sgpqcradbeflux1longC1.s2, sgpqcrad1longC1.s1, sgpqcrad1longC1.c1, sgpqcradbeflux1longC1.c1, sgpqcrad1longC1.s2, sgpqcradbeflux1longC1.c2 |
| Description: | Beginning October 3, 2007, the upwelling longwave irradiance (up_long_hemisp, aka "UIR") started to spike to unreasonable values positively offset from the co-located E13 by over 100W/m2. On January 17 2008 the UIR values become consistently bad due to bad UIR dome thermistor wiring. Problem appears as a resistive offset in the dome thermistor but due to nature of failure (unknown cable problem) data correction would not yield any better data than the co-located E13 UIR instrument that is known to be operating correctly. Instrument cable replacement on 4/22 fixed the problem. Thermopile data (netIR) from this instrument is good. However, incoming irradiance data is not correctable due to bad UIR dome thermistor wiring within the instrument cable. Documented in instrument DQR D071022.4. |
| Suggestions: | Use E13 UIR data |
| Measurements: | sgpqcradbeflux1longC1.s2: more
sgpqcradbeflux1longC1.c2: more sgpqcradbeflux1longC1.s1: more sgpqcradbeflux1longC1.c1: more sgpqcrad1longC1.s1: more sgpqcrad1longC1.c1: more sgpqcrad1longC1.s2: more sgpqcrad1longC1.c2: more |