Dataset: Secchi Depth
Deployment: KM0701

Secchi depth water column optical clarity

Principal Investigator:

Zackary I. Johnson (University of Hawaii, UH)

Contact:

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Ecotypic Diversity and Adaptation of Prochlorococcus in the Stratified, High Temperature Waters of the Western Pacific Warm Pool (WP2)

Current State:

Preliminary and in progress

Version:

06 January 2011

Deployment Synonyms:

Western Pacific Warm Pool, WP2, WPWP, (WP)2

Version Date:

2011-01-06

Data URL:

https://www.bco-dmo.org/dataset-deployment/453458/data

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Description

Secchi Depth, water column optical clarity, meters

Methods & Sampling

Dataset acquisition description

At approximately local noon, a 16 inch diameter white/black quadrant disc was lowered from the ship’s deck until no longer visible and this depth (in meters) recorded as the Secchi depth. Notes on the approximate sea state, weather or ‘wire angle’ were taken if deemed relevant to the reading.

Data Processing Description

Dataset Processing Description

Generated from original file 'wp2_secchi.txt' contributed by Zackary Johnson

BCO-DMO Edits
- year, day of year converted to date formatted as YYYYMMDD
- parameter names formatted to conform with BCO-DMO convention

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0526072	NSF Division of Ocean Sciences
OCE-0526462	NSF Division of Ocean Sciences

Instruments

Secchi Disc

Supplied Description:

At approximately local noon, a 16 inch diameter white/black quadrant disc was lowered from the ship’s deck until no longer visible and this depth (in meters) recorded as the Secchi depth

Instrument Type

Generic Name: Secchi Disc

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0430/

Generic Description:

Typically, a 16 inch diameter white/black quadrant disc used to measure water optical clarity

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Station	Station number	integer	station
date	date (GMT)	YYYYMMDD	date_gmt
lon	Station longitude (West is negative)	decimal degrees	lon
lat	Station latitude (South is negative)	decimal degrees	lat
depth	Secchi depth in meters	meters	depth
comments	comments related to sampling	text	comment

Database

Contribute Data

Dataset: Secchi Depth
Deployment: KM0701

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Secchi DepthDeployment: KM0701

Dataset acquisition description

Dataset Processing Description

Dataset: Secchi Depth
Deployment: KM0701