Dataset: CTD
Deployment: LDZ8

CTD

View Data: For data, See Dataset Metadata Page: https://www.bco-dmo.org/dataset/719199

Principal Investigator:

Dr Byron C Crump (University of Maryland Center for Environmental Science, UMCES/HPL)

Project:

Life in the Dead Zone: Microbial respiration, production, diversity and gene expression in seasonally anoxic estuarine waters (LiDZ)

Version:

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Description

These data have been submitted to BCO-DMO and are in the process of being served.

This dataset contains CTD profiles from the middle region of the Chesapeake Bay, in seasonally anoxic bottom waters, collected in spring and summer of 2010-2011.

CTD profiles collected during sixteen research cruises in 2010-2012: two 1-week cruises aboard the UNOLS vessel R/V Hugh R. Sharp, and fourteen 1-day cruises aboard the R/V Terrapin, which is a 25' Parker outboard motorboat with davit for deploying a CTD package.

Methods & Sampling

Dataset acquisition description

Data Processing Description

Dataset Processing Description

CTD data was processed using Software Version Seasave V 7.20c

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0961920	NSF Division of Ocean Sciences

Instruments

Sea-Bird SBE 25 Sealogger CTD

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: Sea-Bird SBE 25 Sealogger CTD

Acronym: CTD SBE 25

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0040/

Generic Description:

The Sea-Bird SBE 25 SEALOGGER CTD is battery powered and is typically used to record data in memory, eliminating the need for a large vessel, electrical sea cable, and on-board computer. All SBE 25s can also operate in real-time, transmitting data via an opto-isolated RS-232 serial port. Temperature and conductivity are measured by the SBE 3F Temperature sensor and SBE 4 Conductivity sensor (same as those used on the premium SBE 9plus CTD). The SBE 25 also includes the SBE 5P (plastic) or 5T (titanium) Submersible Pump and TC Duct. The pump-controlled, TC-ducted flow configuration significantly reduces salinity spiking caused by ship heave, and in calm waters allows slower descent rates for improved resolution of water column features. Pressure is measured by the modular SBE 29 Temperature Compensated Strain-Gauge Pressure sensor (available in eight depth ranges to suit the operating depth requirement). The SBE 25's modular design makes it easy to configure in the field for a wide range of auxiliary sensors, including optional dissolved oxygen (SBE 43), pH (SBE 18 or SBE 27), fluorescence, transmissivity, PAR, and optical backscatter sensors. More information from Sea-Bird Electronics: http:www.seabird.com.

Parameters

None available yet

Database

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Dataset: CTD
Deployment: LDZ8

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CTDDeployment: LDZ8

Dataset acquisition description

Dataset Processing Description

Dataset: CTD
Deployment: LDZ8