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Ref. No. [UMCES] CBL 2016-010
ACT VS16-01
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Figure W
. Long-term stability and thermal stress challenge of the JFE AroW-USB (sn 0181). Instrument was maintained
in well circulated tank and oxygen content manipulated by alternately varying water temperature set point between 15 and
25
o
C several times per week of deployment.
Top Panel
: Time series of AROUSB instrument readings representing average
of ten 1s burst reads at 15min intervals with discrete values for Winkler assay of grab samples taken at sensor level.
Bottom Panel
: Offset in paired DO readings of AROUSB and Winkler grab samples. Offsets beyond 2 mg/L (1 event) are
excluded for clarity.