Dataset: CTD_profiles_LIS

Name: CTD data collected on R/V Lowell Weicker in the Long Island Sound in 2008
Published: 2012-05-31
Keywords: oceans

Cite This Dataset

Spatial Extent: N:41.28663 E:-72.33102 S:41.09022 W:-72.55972

Project:

Testing hypotheses about diversity, gene flow, and effective population size in marine planktonic ciliates (CiliateDivGenePop)

Principal Investigator:

George McManus (University of Connecticut, UConn - Avery Point)

Co-Principal Investigator:

Laura A. Katz (Smith College)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

31 May 2012

Version Date:

2012-05-31

Validated:

Yes

Current State:

Final no updates expected

CTD data collected on R/V Lowell Weicker in the Long Island Sound in 2008

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Description

CTD data are provided for 6 stations sampled in Long Island Sound on 13 August 2008. Data include temperature, density, salinity, fluorescence, and oxygen saturation along a depth gradient.

Methods & Sampling

Sample stations were selected to represent a range of variation in depth, salinity, and vertical stratification. At each station, measurements were made with a SeaBird CTD for the purpose of creating density profiles.

Stations and methods are further described in the following publication:
Tamura, M, LA Katz, and GB McManus. 2011. Distribution and diversity of Oligotrich and Choreotrich ciliates in a large temperate estuary. Aquat. Microb. Ecol. 64:51-67. doi:10.3354/ame01509 (PDF)

Data Processing Description

Data were processed with the SeaSoft program from SeaBird and smoothed by binning at 0.1 m intervals. BCO-DMO made the following modifications to the dataset: format of parameter names was changed to conform to BCO-DMO conventions; blanks and values of '-9.99E-29' were replaced with 'nd'; lat and lon values were converted from degrees/decimal minutes to decimal degrees. Note: lat and lon values are approximate for Station 2.

Data Files

File
CTD_profiles.csv (Comma Separated Values (.csv), 58.70 KB) MD5:0caabe47f4b3042d8483018adcea31d1 Primary data file for dataset ID 3656

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0648711

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
LW_LIS08		2008-08-13	R/V Lowell Weicker	George McManus (Principal Investigator)	data info

Instruments

CTD Sea-Bird SEACAT 19

Supplied Description:

A SeaBird SBE 19 CTD was used at each station to record temperature, salinity, and other physical data.

Instrument Type

Generic Name: CTD Sea-Bird SEACAT 19

Acronym: CTD SBE 19

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0042/

Generic Description:

The Sea-Bird SBE 19 SEACAT Recorder measures conductivity, temperature, and pressure (depth). The SEACAT is self-powered and self-contained and can be deployed in profiling or moored mode. The SBE 19 SEACAT was replaced in 2001 by the 19plus. more information from Sea-Bird Electronics

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	Unique identifier for the cruise.	dimensionless	cruiseid
year	Year in YYYY format.	dimensionless	year
month_gmt	Month in which the samples were collected, in MM format (GMT).	dimensionless	month_gmt
day_gmt	Day on which the samples were collected, in DD format (GMT).	dimensionless	day_gmt
station	Numeric identifier of the sample station.	dimensionless	station
lat	Latitude in decimal degrees. Positive values indicate North. Values have been converted from degrees and decimal minutes to decimal degrees.	decimal degrees	lat
lon	Longitude in decimal degrees. Negative values indicate West. Values have been converted from degrees and decimal minutes to decimal degrees.	decimal degrees	lon
time_start_local	Local time at which the CTD cast began, in HHMM format. (Local time = GMT - 5 hours).	dimensionless	time_start_local
depth	Sample depth in meters.	meters	depth
density	Density, measured in kg per cubic meter.	kg/m^3	density
temp	Water temperature in Celsius degrees.	degrees Celsius	temp
sal	Salinity.	PSU	sal
fluor	Fluorescence measured in mg per cubic meter.	mg/m^3	fluor
O2_mg	Oxygen saturation measured in mg/liter.	mg/L	no_bcodmo_term
time_elapsed	Time elapsed (in seconds) since the first CTD sample at the station.	seconds	time_elapsed
day_local	Day on which the samples were collected, in DD format (local time).	dimensionless	day_local
month_local	Month in which the samples were collected, in MM format (local time).	dimensionless	month_local
time_start_gmt	GMT time at which the CTD cast began, in HHMM format.	dimensionless	time_start
ISO_DateTime_UTC	Date and time formatted to ISO8601 standard. T indicates start of time string; Z indicates UTC.	YYYY-MM-DDTHH:MM:SS.ssZ	ISO_DateTime_UTC

Database

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Dataset: CTD_profiles_LIS