Bodega Head Intertidal Surf Zone Chlorophyll-a Raw Fluorescence
Access & Use Information
Downloads & Resources
Dates
Metadata Date | August 13, 2024 |
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Metadata Created Date | July 26, 2024 |
Metadata Updated Date | August 27, 2024 |
Reference Date(s) | 2016-07-27T22:54:54Z (creation), 2016-07-27T22:54:54Z (issued), 2016-07-27T22:54:54Z (revision) |
Frequency Of Update |
Metadata Source
- ISO-19139 ISO-19139 Metadata
Harvested from ioos
Additional Metadata
Resource Type | Dataset |
---|---|
Metadata Date | August 13, 2024 |
Metadata Created Date | July 26, 2024 |
Metadata Updated Date | August 27, 2024 |
Reference Date(s) | 2016-07-27T22:54:54Z (creation), 2016-07-27T22:54:54Z (issued), 2016-07-27T22:54:54Z (revision) |
Responsible Party | Romberg Tiburon Center for Environmental Studies (Point of Contact) |
Contact Email | |
Guid | OceanSITES:OS_Bodega_Head_factory_20160727T155454.nc |
Access Constraints | |
Bbox East Long | -123.07419 |
Bbox North Lat | 38.31874 |
Bbox South Lat | 38.31874 |
Bbox West Long | -123.07419 |
Coupled Resource | |
Frequency Of Update | |
Harvest Object Id | 1bb87fc0-ec07-4cb2-93b7-844d842b1d72 |
Harvest Source Id | 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb |
Harvest Source Title | ioos |
Licence | |
Lineage | All fluorometry data and tidal height predictions are collected and processed in Coordinated Universal Time (UTC). Out of water measurements are flagged in the dataset by interpolating between the raw fluorescence data points in order to align the fluorescence time series with tidal height predictions (downloaded from: http://tbone.biol.sc.edu/tide/) and identify observations when the tide is < 1 m above the apparent tidal height of the fluorometer. The apparent tidal height of the fluorometer is determined by visual inspection of the plotted fluorescence and tidal height data. The focal period is during extreme low tides when the fluorometer is clearly out of water, recorded measurement are close to the dark count offset value (see below) and do not change over the low tide interval. These data delineate an obvious, sharp transition as the instrument is uncovered or covered by the tide. Instrument fouling is also flagged in the dataset by visual inspection of the plotted fluorescence data. Fouling is defined as any period of randomly scattered data without an obvious trend in the fluorescence signal. To scale raw fluorescence observations to factory calibrated chlorophyll-a, WET Labs uses a chlorophyll-a equivalent concentration (CEC) scale factor. The CEC scale factor is calculated as the signal output using a fluorescent proxy approximately equal to 25 ?g/l of a Thalassiosira weissflogii phytoplankton culture (scale factor = 25 (?g/l)(Chl Equivalent Concentration dark count)-1). The dark count is the measured signal output of the fluorometer in clean water with black tape over the detector. Scaling is linear. These values are provided as part of the manufacturers annual characterization for each instrument (Table 1). CEC units are calculated from the raw data by subtracting the dark count and then multiplying by the scale factor. The data reported here are chlorophyll-a scaled to the factory CEC for the entire time series from 2010 2015. Out of water periods and fouled periods have not been removed but are flagged in the dataset. Only pre- and post-deployment data have been removed. |
Metadata Language | eng |
Metadata Type | geospatial |
Old Spatial | {"type": "Point", "coordinates": [-123.07419, 38.31874]} |
Progress | |
Spatial Data Service Type | |
Spatial Reference System | |
Spatial Harvester | True |
Temporal Extent Begin | 2010-04-16T02:15:00Z |
Temporal Extent End | 2015-11-22T00:00:00Z |
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