Dataset: Benthic and acidification data from the Palmyra Atoll
Deployment: BEAMS_Palmyra

BEAMS data from two sites on the western terrace on Palmyra Atoll during 2014.

Principal Investigator:

Yuichiro Takeshita (Carnegie Institution for Science, CIS)

Co-Principal Investigator:

Todd R. Martz (University of California-San Diego Scripps, UCSD-SIO)

Wade McGillis (Columbia University)

Nichole N. Price (Bigelow Laboratory for Ocean Sciences)

Jennifer Smith (University of California-San Diego Scripps, UCSD-SIO)

Contact:

Yuichiro Takeshita (Carnegie Institution for Science, CIS)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Quantifying the potential for biogeochemical feedbacks to create 'refugia' from ocean acidification on tropical coral reefs (BEAMS)

Current State:

Final no updates expected

Version:

Final

Version Date:

2016-12-01

Data URL:

https://www.bco-dmo.org/dataset-deployment/666440/data

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Description

Benthic Ecosystem and Acidification Measuring System (BEAMS) data from two sites (LL and RT4) on the western terrace of the Palmyra Atoll. The data was collected in 2014.

Methods & Sampling

Dataset acquisition description

This dataset was collected using the Benthic Ecosystem and Acidification Measuring System (BEAMS). The details of this technique and dataset can be in the reference provided below. BEAMS uses autonomous sensors to quantify mean gradients of pH and O2 and the current velocity profile in the BBL to calculate benthic fluxes of O2 (NCP) and TA (NCC). The NCP and NCC provided here represent metabolic rates under completely natural (e.g. flow and light) conditions.

Data Processing Description

Dataset Processing Description

Questionable rates have been removed through a quality control procedure described in detail in the reference above. Briefly, 1) measurements when the benthic boundary layer was stratified were removed, and 2) Spikes in the data were removed based on the observed DeltapH/DeltaO2 relationship.

BCO-DMO Data Processing Notes:

-combined 2 datasets (one from each site) into one file
-replaced "NaN" with "nd"
-separated date and time into two columns
-reformatted column names to comply with BCO-DMO standards

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1316006	NSF Division of Ocean Sciences
OCE-1316047	NSF Division of Ocean Sciences

Instruments

Flow Meter

Supplied Name: Flow meter

Supplied Description:

Used by the Benthic Ecosystem and Acidification Measuring System (BEAMS)

Instrument Type

Generic Name: Flow Meter

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/388/

Generic Description:

General term for a sensor that quantifies the rate at which fluids (e.g. water or air) pass through sensor packages, instruments, or sampling devices. A flow meter may be mechanical, optical, electromagnetic, etc.

Light Meter

Supplied Description:

Used by the Benthic Ecosystem and Acidification Measuring System (BEAMS)

Instrument Type

Generic Name: Light Meter

Generic Description:

Light meters are instruments that measure light intensity. Common units of measure for light intensity are umol/m2/s or uE/m2/s (micromoles per meter squared per second or microEinsteins per meter squared per second). (example: LI-COR 250A)

Oxygen Sensor

Supplied Name: autonomous oxygen sensor

Supplied Description:

Used by the Benthic Ecosystem and Acidification Measuring System (BEAMS)

Instrument Type

Generic Name: Oxygen Sensor

Acronym: Dissolved Oxygen Sensor

Generic Description:

An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed

pH Sensor

Supplied Name: autonomous pH sensor

Supplied Description:

Used by the Benthic Ecosystem and Acidification Measuring System (BEAMS)

Instrument Type

Generic Name: pH Sensor

Generic Description:

An instrument that measures the hydrogen ion activity in solutions.

The overall concentration of hydrogen ions is inversely related to its pH. The pH scale ranges from 0 to 14 and indicates whether acidic (more H+) or basic (less H+).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
site	Site in Palmyra where data were collected.	unitless	site
date	Date data were collected; mm/dd/yy	unitless	date
time	Time data were collected; HH:MM	unitless	time
pH_1_1m	In situ pH on the total hydrogen ion scale; 3 x n matrix; data collected at 1.1m above the benthos.	pH	pH
pH_0_5m	In situ pH on the total hydrogen ion scale; 3 x n matrix; data collected at 0.5m above the benthos.	pH	pH
pH_0_3m	In situ pH on the total hydrogen ion scale; 3 x n matrix; data collected at 0.3m above the benthos.	pH	pH
temp_1_1m	Temperature in Celsius; 3 x n matrix; data collected at 1.1m above the benthos.	celsius	temperature
temp_0_5m	Temperature in Celsius; 3 x n matrix; data collected at 0.5m above the benthos.	celsius	temperature
temp_0_3m	Temperature in Celsius; 3 x n matrix; data collected at 0.3m above the benthos.	celsius	temperature
DO_1_1m	Dissolved O2; 3 x n matrix; data collected at 1.1m above the benthos.	umol/kg	O2
DO_0_5m	Dissolved O2; 3 x n matrix; data collected at 0.5m above the benthos.	umol/kg	O2
DO_0_3m	Dissolved O2; 3 x n matrix; data collected at 0.3m above the benthos.	umol/kg	O2
OMEGA_1_1m	Aragonite Saturation State; 3 x n matrix; data collected at 1.1m above the benthos.	unitless	OM_ar
OMEGA_0_5m	Aragonite Saturation State; 3 x n matrix; data collected at 0.5m above the benthos.	unitless	OM_ar
OMEGA_0_3m	Aragonite Saturation State; 3 x n matrix; data collected at 0.3m above the benthos.	unitless	OM_ar
PAR	Photosynthetically Available Radiation	umol photons m-2 s-1	PAR
pressure	Pressure; 3 x n matrix.	decibars	press
current_speed	Current speed at 1.4 m above benthos.	meters per second	curr_speed_rel
salinity	Salinity	practical salinity units	sal
NCP	Net Community Production	mmol O2 m-2 hr-1	production
NCC_Q_0_8	Net Community Calcification; 5 x n matrix; NCC value calculated using Q of 0.8	mmol CaCO3 m-2 hr-1	calcification
NCC_Q_0_9	Net Community Calcification; 5 x n matrix; NCC value calculated using Q of 0.9	mmol CaCO3 m-2 hr-1	calcification
NCC_Q_1_0	Net Community Calcification; 5 x n matrix; NCC value calculated using Q of 1.0	mmol CaCO3 m-2 hr-1	calcification
NCC_Q_1_1	Net Community Calcification; 5 x n matrix; NCC value calculated using Q of 1.1	mmol CaCO3 m-2 hr-1	calcification
NCC_Q_1_2	Net Community Calcification; 5 x n matrix; NCC value calculated using Q of 1.2	mmol CaCO3 m-2 hr-1	calcification
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted	unitless	ISO_DateTime_UTC
lat	Latitude; N is positive.	decimal degrees	lat
lon	Longitude; E is positive	decimal degrees	lon

Database

Contribute Data

Dataset: Benthic and acidification data from the Palmyra Atoll
Deployment: BEAMS_Palmyra

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Benthic and acidification data from the Palmyra AtollDeployment: BEAMS_Palmyra

Dataset acquisition description

Dataset Processing Description

Dataset: Benthic and acidification data from the Palmyra Atoll
Deployment: BEAMS_Palmyra