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30-Days of Data at the Fernhill Wetlands Outfall (453016123052400)

Data are downloaded and processed every 3 hours.

The Fernhill Wetlands outfall discharges to the Tualatin River downstream of Fern Hill Road at river mile 55.2. Data are collected on the half hour. Periods with no data are plotted as grey areas. These data are provisional and are subject to revision.

Water Temperature, Pre-Aeration

Graph updated: Thursday - Dec 12, 2019 at 05:07:24 EST

graph of pre-aeration water temperature

Water Temperature, Post-Aeration

Graph updated: Thursday - Dec 12, 2019 at 05:07:23 EST

graph of post-aeration water temperature

Comparison of Pre- and Post-Aeration Water Temperature

Graph updated: Thursday - Dec 12, 2019 at 05:07:19 EST

graph of pre- and post-aeration water temperature

Specific Conductance

Graph updated: Thursday - Dec 12, 2019 at 05:07:20 EST

graph of specific conductance

pH

Graph updated: Thursday - Dec 12, 2019 at 05:07:22 EST

graph of pH

Dissolved Oxygen, Pre-Aeration

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.

Graph updated: Thursday - Dec 12, 2019 at 05:07:21 EST

graph of pre-aeration dissolved oxygen

Dissolved Oxygen, Post-Aeration

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.

Graph updated: Thursday - Dec 12, 2019 at 05:07:20 EST

graph of post-aeration dissolved oxygen

Comparison of Pre- and Post-Aeration Dissolved Oxygen

Data in the graph are plotted against the axis of the same color.

Graph updated: Thursday - Dec 12, 2019 at 05:07:18 EST

graph of pre- and post-aeration dissolved oxygen

Oxygen Percent Saturation, Pre-Aeration

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

Graph updated: Thursday - Dec 12, 2019 at 05:07:22 EST

graph of pre-aeration dissolved oxygen saturation

Oxygen Percent Saturation, Post-Aeration

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

Graph updated: Thursday - Dec 12, 2019 at 05:07:21 EST

graph of post-aeration dissolved oxygen saturation

Comparison of Pre- and Post-Aeration 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 at this site and barometric pressure at a nearby site.

Graph updated: Thursday - Dec 12, 2019 at 05:07:19 EST

graph of pre- and post-aeration dissolved oxygen saturation

Turbidity

Turbidity data are measured in FNU units.

Graph updated: Thursday - Dec 12, 2019 at 05:07:24 EST

graph of turbidity

Total Chlorophyll

Provisional chlorophyll concentrations are derived from sensor fluorescence data, and have not yet been checked against lab-derived water-sample chlorophyll results.

Graph updated: Thursday - Dec 12, 2019 at 05:07:18 EST

graph of total chlorophyll

Phycocyanin

Phycocyanin concentrations are derived from sensor fluorescence data, and at this time are estimates only.

Graph updated: Thursday - Dec 12, 2019 at 05:07:23 EST

graph of phycocyanin

 

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URL: https://or.water.usgs.gov/tualatin/monitors/fernhill_all_30.html
Page Contact Information: Stewart Rounds
Page Last Modified: Wednesday - Jun 5, 2019 at 14:50:53 EDT