Dataset: FHLOO
Deployment: FHLOO

pH, pCO2, temperature, salinity, and dissolved oxygen data were recorded from 2018-2021 from a sensor array at Friday Harbor Laboratories Ocean Observatory (FHLOO).

Methods & Sampling

Dataset acquisition description

Data are collected from a sensor array deployed at a floating dock at ~2-3 m water depth located at the University of Washington Friday Harbor Laboratories, Friday Harbor, WA (Lat = 48.5461, Long = -123.007). Sensors include: Sea-Bird SBE37 (temperature and salinity), Sunburst SAMI-pH (pH and temperature), Sunburst SAMI-pCO2 (pCO2 and temperature), Aanderaa Oxygen Optode 4351A (dissolved oxygen and temperature).

Data gaps (dates where instrument malfunctioned or was being serviced and there is no data) are reported in the supplemental file "FHLOO v2 Data Gaps" (PDF).

Data Processing Description

Dataset Processing Description

BCO-DMO Processing:
Version 1 (date 2020-10-15):
- converted date/time fields to ISO8601 format;
- added latitude and longitude as columns; values originally provided in dataset metadata.
- dataset history: note these data were originally provided as four separate datasets (listed under Related Datasets); those data have been corrected/updated by the project investigators and combined into one dataset. This is the version recommended for re-use.

Version 2 (date 2022-10-25):
- replaced previous version with version 2, which includes the following changes:
-- addition of new data added spanning 2021-05-07 to 2022-12-31;
-- "-9999" NA strings were changed to "nd";
-- the dataset has been filtered according to the data gap summary so that unreliable data (fouled sensors) are no longer included.
- BCO-DMO edits on this version include:
-- changed all dates to ISO8601 format;
-- replaced "NA" with "nd";
-- removed unnecessary columns.

More information about this dataset deployment

Funding

Award Number	Funding Source
FSML-1418875	NSF Division of Biological Infrastructure

Instruments

Aanderaa Oxygen Optodes

Supplied Name: Aanderaa Oxygen Optode 4351A

Supplied Description:

Aanderaa Oxygen Optode 4351A (dissolved oxygen and temperature)

Instrument Type

Generic Name: Aanderaa Oxygen Optodes

Acronym: AOO

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/351/

Generic Description:

Aanderaa Oxygen Optodes are instrument for monitoring oxygen in the environment. For instrument information see the Aanderaa Oxygen Optodes Product Brochure.

CTD Sea-Bird MicroCAT 37

Supplied Name: Sea-Bird SBE37

Supplied Description:

Sea-Bird SBE37 (temperature and salinity)

Instrument Type

Generic Name: CTD Sea-Bird MicroCAT 37

Acronym: CTD MicroCAT 37

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/350/

Generic Description:

The Sea-Bird MicroCAT CTD unit is a high-accuracy conductivity and temperature recorder based on the Sea-Bird SBE 37 MicroCAT series of products. It can be configured with optional pressure sensor, internal batteries, memory, built-in Inductive Modem, integral Pump, and/or SBE-43 Integrated Dissolved Oxygen sensor. Constructed of titanium and other non-corroding materials for long life with minimal maintenance, the MicroCAT is designed for long duration on moorings.

In a typical mooring, a modem module housed in the buoy communicates with underwater instruments and is interfaced to a computer or data logger via serial port. The computer or data logger is programmed to poll each instrument on the mooring for its data, and send the data to a telemetry transmitter (satellite link, cell phone, RF modem, etc.). The MicroCAT saves data in memory for upload after recovery, providing a data backup if real-time telemetry is interrupted.

Submersible Autonomous Moored Instrument

Supplied Name: Sunburst SAMI-pH

Supplied Description:

Sunburst SAMI-pH (pH and temperature)

Instrument Type

Generic Name: Submersible Autonomous Moored Instrument

Acronym: SAMI

Generic Description:

The Submersible Autonomous Moored Instrument (SAMI) measures and logs levels of dissolved chemicals in sea and fresh water. It is a plastic cylinder about 6 inches wide and 2 feet long that is self-powered and capable of hourly measurements for up to one year. All data collected are logged to an internal memory chip to be downloaded later. SAMI sensors usually are placed a few feet underwater on permanent moorings, while others on floating drifters sample the water wherever the wind and currents carry them. The instruments have been used by researchers around the globe in a variety of studies since 1999. Dr. Mike DeGrandpre, University of Montana, developed the SAMI between 1990 and 1993 during his postdoctoral work at the Woods Hole Oceanographic Institution (Woods Hole, MA, USA). For additional information, see URL: http://www.sunburstsensors.com/ from the manufacturer, Sunburst Sensors, LLC, 1226 West Broadway, Missoula, MT 59802.

Submersible Autonomous Moored Instrument

Supplied Name: Sunburst SAMI-pCO2

Supplied Description:

Sunburst SAMI-pCO2 (pCO2 and temperature)

Instrument Type

Generic Name: Submersible Autonomous Moored Instrument

Acronym: SAMI

Generic Description:

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
ISO_DateTime_PST	Date (local time zone of PST/PDT) in ISO8601; format: YYYY-MM-DDThh:mm	unitless	ISO_DateTime_Local
ISO_DateTime_UTC	Date (UTC) in ISO8601 format: YYYY-MM-DDThh:mmZ	unitless	ISO_DateTime_UTC
Latitude	Latitude of sampling location	degrees North	lat
Longitude	Longitude of sampling location (negative = west)	degrees East	lon
Dox	Dissolved oxygen	micromoles O2 per kilogram (umol O2 kg-1)	O2
OxSat	Dissolved oxygen saturation (percent)	unitless (percent)	O2sat
pCO2	Partial Pressure of CO2 in seawater	microatmospheres (uatm)	pCO2
Sea_pH	Seawater pH	seawater pH units (total hydrogen scale)	pH
Sal	Salinity	psu	sal
Sea_Temp_Oxygen	Water temperature from Aanderaa Oxygen Optode	degrees Celsius	temp
Sea_Temp_pCO2	Water temperature from Sunburst SAMI-pCO2	degrees Celsius	temp
Sea_Temp_pH	Water temperature from Sunburst SAMI-pH	degrees Celsius	temp
Sea_Temp_SBE	Water temperature from Sea-Bird SBE37	degrees Celsius	temp

Database

Contribute Data

Dataset: FHLOO
Deployment: FHLOO

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: FHLOODeployment: FHLOO

Dataset acquisition description

Dataset Processing Description

Dataset: FHLOO
Deployment: FHLOO