Dataset: Santa Monica Bay Daily CTD

Name: CTD data from daily sampling at the Santa Monica Pier (SMP), Santa Monica Bay, CA from 2018 to 2019
Published: 2022-11-17
Keywords: oceans

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Spatial Extent: N:34.009 E:-118.497 S:34.009 W:-118.497

Temporal Extent: 2018-04-16 - 2019-05-05

Project:

Protistan, prokaryotic, and viral processes at the San Pedro Ocean Time-series (SPOT)

Principal Investigator:

David Caron (University of Southern California, USC)

Scientist:

Sarah K. Hu (University of Southern California, USC)

Gerid A. Ollison (University of Southern California, USC)

BCO-DMO Data Manager:

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2022-11-17

Restricted:

Validated:

Current State:

Preliminary and in progress

CTD data from daily sampling at the Santa Monica Pier (SMP), Santa Monica Bay, CA from 2018 to 2019

Abstract:

This is a compiled dataset containing CTD data from daily sampling at the Santa Monica Pier (SMP) from 2018 to 2019. These data were published in Ollison et al (2022). These data were collected as part of a study of high frequency (daily) changes in relative abundance dynamics of the metabolically active protistan community were followed via expressed 18S V4 rRNA genes (RNA) throughout two algal blooms during the spring of 2018 and 2019 in Santa Monica Bay (central Southern California Bight) to examine the environmental factors that influence protistan community dynamics during algal blooms.

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Methods & Sampling

Blooms were targeted in Santa Monica Bay during spring 2018 and 2019 using local meteorological information to anticipate coastal upwelling events (Figure S1, Ollison et al., 2022). Sampling from the Santa Monica Pier (SMP) was conducted daily at 0900 (PST/PDT) from the same location and orientation on the SMP from the 16th through the 30th in April 2018 (15 days), and in 2019 from the 13th April through 6th May (22 days; no sample was collected on the 14th April 2019). Sampling periods are henceforth referred to as 2018 and 2019, respectively.

An RBR Concerto (https://rbr-global.com) was deployed in surface water for 15 minutes at the time of each sample collection to obtain temperature, conductivity, chlorophyll a fluorescence, and dissolved oxygen concentrations (Table S1, Ollison et al., 2022). A 20 µm mesh plankton net was drift towed from the pier (15 min), and samples were examined via light microscopy to identify the dominant planktonic taxa and their relative abundances.

See "Related Datasets" section for surface water sampling methods and results of 18S rRNA sequencing, and nutrient analyses.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1737409

Deployments

None available yet

Instruments

CTD - fixed

Supplied Name: RBR Concerto

Supplied Description:

RBR Concerto (https://rbr-global.com): Instrument used in this study to record continuous measures of conductivity, salinity, chlorophyll fluorescence, and temperature.

Instrument Type

Generic Name: CTD - fixed

Generic Description:

A reusable instrument that always simultaneously measures conductivity and temperature (for salinity) and pressure (for depth).

This term applies to CTDs that are fixed and do not measure by profiling through the water column. For profiling CTDs, see https://www.bco-dmo.org/instrument/417.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
pressure	pressure values	decibars (dbar)	press
lat	latitude	decimal degrees	lat
lon	longitude	decimal degrees	lon
temperature	temperature values	degrees Celsius (deg C)	temp
chlorophylla	chlorphyll a concentration	micrograms per liter (ug/L)	chl_a
conductivity	conductivity values	microSiemens per centimeter (mS/cm)	cond
dissolvedosaturation	dissolved oxygen concentration	milligrams per liter (mg/L)	O2
salinity	salinity value	Practical Salinity Units (PSU)	sal
date	sampling date	unitless	date_local
time	sampling time	unitless	time_local

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Database

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Dataset: Santa Monica Bay Daily CTD