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SATURN-02 CDOM calibration evaluation

The table below contains the quality flags associated with CDOM sensor calbration evaluations and the associated scaling used to bring various sensors into alignment.  Refer to the QA/QC general information page for information on the different quality levels.  The following slides provide details on CDOM data scaling & data quality evaluation: SATURN CDOM Sensor Performance & Data Scaling.pptx

SATURN-02

Quality Flag Start Time End Time Scale Factor Offset Comment Instrument
QL2 4/24/12 10/20/12 0.769 -2.343 This CDOM sensor was installed at SATURN-02 for several seasonal deployments between 2012 and 2016. Sensor checks in reference solutions were used to scale output  from the SATURN CDOM sensors to a common scale.  These data show that the output from this sensor was  stable through 2014.  The 2014 scale factor was applied through the 2015 deployment.   Data during this time period were scaled by a factor of 0.767 and corrected for an offset of ~2ppb. FLCD#1686
QL2 6/26/14 9/28/14 0.814 -1.832 This CDOM sensor was installed at SATURN-02 for several seasonal deployments between 2012 and 2016. Sensor checks in reference solutions were used to scale output  from the SATURN CDOM sensors to a common scale.  These data show that the output from this sensor was  stable through 2014.  The 2014 scale factor was applied through the 2015 deployment.   Data during this time period were scaled by a factor of 0.814 and corrected for an offset of ~ 1.8ppb. FLCD#1686
QL3 5/24/15 10/7/15 1.394 -4.583 This CDOM sensor was installed at SATURN-02 for several seasonal deployments between 2012 and 2016. Sensor checks in reference solutions were used to scale output  from the SATURN CDOM sensors to a common scale.  These data show that the output from this sensor was  stable through 2014.  The 2014 scale factor was applied through the 2015 deployment.   Data during this time period were scaled by a factor of 1.4 and corrected for an offset of ~ 4.5ppb. FLCD#1686
QL5 5/26/16 10/11/16 --- ---  Sensor failed during this deployment CD#218-0718
QL2 5/26/17 10/30/17 1.906 0 This CDOM sensor was installed at SATURN-02 for the 2017 deployment, beginning on 5/26/17. Sensor checks in reference solutions were used to scale output  from the SATURN CDOM sensors to a common scale.  Data during this time period were scaled by a factor of 1.096. WSCD#1338