RTOMS Water Quality - Ocean Monitoring Program
About this dataset
Water quality measurements collected by Real-time Oceanographic Mooring System (RTOMS). Quality parameters include Biological oxygen demand (BOD) equivalent, Chlorophyll fluorescence, Colored dissolved organic matter (CDOM) fluorescence equivalent, and Turbidity.
The Ocean Monitoring Program maintains two RTOMS in partnership with Scripps Institute of Oceanography. RTOMS are anchored buoys suspended in the water column configured with a range of instruments at multiple depths, collecting near continuous physical, chemical, and biological data and providing near real-time information of changing conditions. The RTOMS are located near the terminal ends of the Point Loma (PLOO) and South Bay (SBOO) ocean outfalls and are typically deployed for one-year intervals. These high temporal resolution data are intended to enhance the assessment of environmental conditions and the potential impacts of oceanographic and anthropogenic events in coastal waters. These datasets have undergone quality control review. To access charts of provisional real-time data, see the Scripps website.
Disclaimer
RTOMS data undergo several checks, including preliminary automated checks and further manual review by Marine Biology and Ocean Operations staff. Inaccuracies in the data may persist due to subtle instrument problems or the lack of appropriate validation data, and subsequent review may result in future revisions to the data. For example, when water sample data for spectrophotometric pH and total alkalinity become available, these may be used to qualify or correct pH data. For nitrate/nitrite data, when available, water samples have been used to drift correct sensor data, and corrected data are provided when available. In addition, data downloaded directly from controllers and instruments may be used to fill in some data gaps in the future.
Get the data
Browse the table below for all files available for this dataset
Data Downloads
| File name | Download actions | File Format | File size |
|---|---|---|---|
| Point Loma Ocean Outfall (PLOO) 2023 RTOMS water quality measurements | Download |
CSV |
31.33 MB |
| South Bay Ocean Outfall (SBOO) 2023 RTOMS water quality measurements | Download |
CSV |
15.67 MB |
| Point Loma Ocean Outfall (PLOO) 2022 RTOMS water quality measurements | Download |
CSV |
48.62 MB |
| South Bay Ocean Outfall (SBOO) 2022 RTOMS water quality measurements | Download |
CSV |
39.24 MB |
| PLOO 2021 RTOMS water quality measurements | Download |
CSV |
8.37 MB |
| SBOO 2021 RTOMS water quality measurements | Download |
CSV |
7.38 MB |
| PLOO 2020 RTOMS water quality measurements | Download |
CSV |
35.43 MB |
| SBOO 2020 RTOMS water quality measurements | Download |
CSV |
40.22 MB |
| Parameter dictionary | Download |
CSV |
764 B |
| Qualifier dictionary | Download |
CSV |
843 B |
View a data sample
Showing 1 transposed sample row. Download the full dataset or a view to get the data.
Data Sample
| Field | Sample Value |
|---|---|
| Deployment# | 4 |
| unixtime_1000_gmt | 1698330600000 |
| datetime_pst | 2023-10-26 06:30:00 |
| depth_m | 30 |
| parameter | Biological oxygen demand (BOD) equivalent |
| units | mg/L |
| value | 0.125 |
| qualifier_flag | 1.0 |
Understand the data
Each field in the data is defined in the table below. Use this information to inform usage of the data.
Download dictionaryData Dictionary
| field | Definition | Possible_values |
|---|---|---|
| unixtime_1000_gmt | Posixtime or number of seconds since 1-Jan-1970 0:00:00 UTC x 1000 | |
| datetime_pst | Date and time of measurement in Pacific Standard Time (PST) | |
| value | Measured value of parameter | |
| project | The Ocean Outfall project for this measurement | PLOO - Point Loma Ocean Outfall; SBOO - South Bay Ocean Outfall |
| qualifier_flag | Qualifier QC flag for associated parameter and depth | 1, 2, 3, 4, 5, 9; see data qualifer definition table |
| parameter | Parameter being measured | |
| units | Unites of measured value of parameter | |
| Deployment# | ||
| depth_m | Actual depth for measurement |
- PublisherPublic Utilities
- Last Updated Aug 20, 2024
- Update Frequency As needed
- Date Issued Aug 14, 2023
- Available Formats .CSV
- License View License
Data & Analytics
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