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30-Days of Dissolved Oxygen at Tualatin River at Highway 219 (14206241)

Data are downloaded and processed nearly every hour.
The chlorophyll and phycocyanin sensors have been removed for the winter months.

Highway 219 crosses the Tualatin River at river mile 44.4. Data are collected at the top of each hour. Periods with no data are plotted as grey areas.

In the graph below, "Data" are the raw data, "No supersat." are the half-hourly data with a ceiling of 100% saturation, "7-day mean" represents the 7-day running average with no credit for supersaturation, "7-day mean min" represents the 7-day running average of daily minima with no credit for supersaturation, and "30-day mean" is the 30-day running average with no credit for supersaturation. The red line will often plot on top of the black one. If the 7-day or 30-day lines are not plotted, it is due to missing data in that period. "Saturation" represents the 100% saturation value for dissolved oxygen.

These data are provisional and are subject to revision.

Graph updated: Sunday - Dec 15, 2019 at 11:03:51 EST

graph of dissolved oxygen

 

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Page Last Modified: Thursday - Jun 6, 2019 at 19:39:36 EDT