| Description: | This DQR was updated on 20130312.
On 20020930 there is step change in the irradiance channels after a short period of
missing data. It is as if the instrument was changed, or a new calibration performed. There
is no evidence either occurred. After examining the data, this "change" seems to have
reverted at midnight UTC on 20060731/20060801. Again, there is no evidence to indicate why
this might have happened. During the ~4 years this instrument operated like this it
appears to have done so without issue. The c1 data level calibration procedures should
resolve issues like this, so this DQR is being set to transparent. This is a change from the
original open-ended DQR that was issued. The original discussion is preserved below.
-----------------------------
On 9/30/2002 it appears a head or logger was swapped. However, there is no record of
this. Also, if a head or logger was swapped, new calibration files would be required, and
there are none that correspond to this date. On this date at about 1800 UTC the channels
appear to have different calibrations. That is, each channel is not continuous throughout
the day. Channel 615 is particularly affected. Other than relative changes in each
channel, the instrument appears to be operating fine. The relative changes are not
show-stopper for using the data. When the c1 level data are available for this site, the data
should be perfectly usable.
Since the c1 data should be fine, and the instrument seems to operating OK, this DQR is
being tagged yellow. |
| Measurements: | sgpmfrsrE11.b1: - direct_diffuse_ratio_broadband
- Radiation, shortwave, diffuse hemispheric irradiance, 415 nm wavelength (diffuse_hemisp_narrowband_filter1)
- Ratio of direct_normal_narrowband_filter2 to diffuse_hemisp_narrowband_filter2(direct_diffuse_ratio_filter2)
- Ratio of direct_normal_narrowband_filter1 to diffuse_hemisp_narrowband_filter1(direct_diffuse_ratio_filter1)
- Radiation, shortwave, diffuse hemispheric irradiance, 500 nm wavelength (diffuse_hemisp_narrowband_filter2)
- direct_diffuse_ratio_filter6
- Hemispheric broadband irradiance*(hemisp_broadband)
- Ratio of direct_normal_narrowband_filter5 to diffuse_hemisp_narrowband_filter5(direct_diffuse_ratio_filter5)
- Direct Normal Broadband Irradiance, broadband scale applied(direct_normal_broadband)
- Ratio of direct_normal_narrowband_filter4 to diffuse_hemisp_narrowband_filter4(direct_diffuse_ratio_filter4)
- Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3)
- Radiation, shortwave, diffuse hemispheric irradiance, 940 nm wavelength(diffuse_hemisp_narrowband_filter6)
- Radiation, shortwave, diffuse hemispheric irradiance, 870 nm wavelength(diffuse_hemisp_narrowband_filter5)
- alltime_hemisp_broadband
- Radiation, shortwave, diffuse hemispheric irradiance, 673 nm wavelength (diffuse_hemisp_narrowband_filter4)
- Radiation, shortwave, diffuse hemispheric irradiance, 615 nm wavelength (diffuse_hemisp_narrowband_filter3)
- alltime_hemisp_narrowband_filter4
- alltime_hemisp_narrowband_filter3
- alltime_hemisp_narrowband_filter6
- direct_horizontal_broadband
- diffuse_hemisp_broadband
- alltime_hemisp_narrowband_filter5
- alltime_hemisp_narrowband_filter2
- alltime_hemisp_narrowband_filter1
- Radiation, shortwave, hemispheric irradiance, 940 nm wavelength (hemisp_narrowband_filter6)
- Radiation, shortwave, hemispheric irradiance, 870 nm wavelength(hemisp_narrowband_filter5)
- Direct normal narrowband irradiance, filter 2(direct_normal_narrowband_filter2)
- Narrowband hemispheric irradiance, filter 4, nominal wavelength is 660 nm*(hemisp_narrowband_filter4)
- Radiation, shortwave, direct normal irradiance, 415 nm wavelength(direct_normal_narrowband_filter1)
- direct_horizontal_narrowband_filter6
- Radiation, shortwave, hemispheric irradiance, 615 nm wavelength(hemisp_narrowband_filter3)
- Radiation, shortwave, direct normal irradiance, 673 nm wavelength(direct_normal_narrowband_filter4)
- Direct normal narrowband irradiance, filter 3(direct_normal_narrowband_filter3)
- Radiation, shortwave, hemispheric irradiance, 500 nm wavelength(hemisp_narrowband_filter2)
- Radiation, shortwave, hemispheric irradiance, 415 nm wavelength (hemisp_narrowband_filter1)
- direct_horizontal_narrowband_filter3
- direct_horizontal_narrowband_filter2
- direct_horizontal_narrowband_filter5
- direct_horizontal_narrowband_filter4
- direct_horizontal_narrowband_filter1
- Direct normal narrowband irradiance, filter 6(direct_normal_narrowband_filter6)
- Direct normal narrowband irradiance, filter 5(direct_normal_narrowband_filter5)
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