14-Days of Data at the Oswego Diversion Dam (14207200)

Data are downloaded and processed every 6 hours. The chlorophyll and blue-green algae probes have been removed for the winter months.

The Oswego Diversion Dam is located in the Tualatin River at river mile 3.4. Data are collected on the hour. Periods with no data are plotted as grey areas. These data are provisional and are subject to revision.

Water Temperature

Graph updated: Sunday - Nov 22, 2009 at 16:42:14 EST

Specific Conductance

Graph updated: Sunday - Nov 22, 2009 at 16:42:07 EST

pH

Graph updated: Sunday - Nov 22, 2009 at 16:42:12 EST

Dissolved Oxygen

In the graph below, "Hourly data" are the raw data, "No supersat." are the hourly data with a ceiling of 100% saturation, "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.

Graph updated: Sunday - Nov 22, 2009 at 16:42:09 EST

Oxygen Percent Saturation

Data in the graph are plotted against the axis of the same color. Percent saturation is estimated as a function of water temperature and barometric pressure at this site.

Graph updated: Sunday - Nov 22, 2009 at 16:42:10 EST

Turbidity

Turbidity data are measured in FNU units.

Graph updated: Sunday - Nov 22, 2009 at 16:42:15 EST

Total Chlorophyll

The chlorophyll probe has been removed for the winter months.
It shall be redeployed by May of 2010.

Blue-Green Algae

The blue-green algae probe has been removed for the winter months.
It shall be redeployed by May of 2010.

Air Temperature

Graph updated: Sunday - Nov 22, 2009 at 16:41:59 EST

Barometric Pressure

Graph updated: Sunday - Nov 22, 2009 at 16:42:03 EST

These graphs are PNG images [help].