Dataset: Chesapeake Bay CTD 2022

Name: CTD data from R/V Hugh R. Sharp cruise HRS2212 in the Chesapeake Bay during August 2022
Published: 2023-05-23
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.896097.1

Spatial Extent: N:38.9972 E:-76.3665 S:38.5648 W:-76.4407

Temporal Extent: 2022-08-12 - 2022-08-19

Project:

Nitrite Oxidation in Oxygen Minimum Zones (NO2Ox_OMZs)

Principal Investigator:

Bess B. Ward (Princeton University)

BCO-DMO Data Manager:

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

Version:

Version Date:

2023-05-23

Restricted:

Validated:

Yes

Current State:

Final no updates expected

CTD data from R/V Hugh R. Sharp cruise HRS2212 in the Chesapeake Bay during August 2022

Abstract:

This dataset includes CTD data from R/V Hugh R. Sharp cruise HRS2212 in the Chesapeake Bay during August 2022. These data are associated with the "Nitrate Oxidation in Oxygen Minimum Zones" project.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2023-05-23	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.896097.1	2023-06-22

Methods & Sampling

Water samples were collected using a 12 x 10-liter Niskin bottle rosette sampler equipped with a conductivity, temperature, and pressure instrument package (SBE9, Sea-Bird Electronics, Bellevue, Washington, U.S.A.), a sensor for dissolved oxygen (SBE43, Sea-Bird), and a sensor for chlorophyll fluorescence (FluoroWetlabECO, AFL FL Sensor).

Data Processing Description

CTD data were processed with Seasave V 7.26.0.7.

BCO-DMO Processing:
- removed "-9.99E-29" as missing data value and replaced with blanks/empty cells;
- added date-time field in ISO 8601 format;
- renamed fields to comply with BCO-DMO naming conventions.

Data Files

File
cb_2022_ctd.csv (Octet Stream, 69.67 KB) MD5:e370ac7a76de7992da1d1775a83c671a Primary data file for dataset ID 896097.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1946516

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
HRS2212	Chesapeake Bay 2022 CB2022	2022-08-11	R/V Hugh R. Sharp	Amal Jayakumar (Chief Scientist)	data info

Instruments

CTD Sea-Bird 9

Supplied Name: Sea-Bird 9

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird 9

Acronym: CTD SBE 9

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

The Sea-Bird SBE 9 is a type of CTD instrument package. The SBE 9 is the Underwater Unit and is most often combined with the SBE 11 Deck Unit (for real-time readout using conductive wire) when deployed from a research vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorometer, altimeter, etc.). Note that in most cases, it is more accurate to specify SBE 911 than SBE 9 since it is likely a SBE 11 deck unit was used. more information from Sea-Bird Electronics

Niskin bottle

Supplied Name: 10-liter Niskin bottle rosette

Supplied Description:

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Sea-Bird SBE 43 Dissolved Oxygen Sensor

Supplied Name: SBE43

Supplied Description:

Instrument Type

Generic Name: Sea-Bird SBE 43 Dissolved Oxygen Sensor

Acronym: SBE-43 DO

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0036/

Generic Description:

The Sea-Bird SBE 43 dissolved oxygen sensor is a redesign of the Clark polarographic membrane type of dissolved oxygen sensors. more information from Sea-Bird Electronics

Wet Labs ECO-AFL/FL Fluorometer

Supplied Name: FluoroWetlabECO, AFL FL Sensor

Supplied Description:

Instrument Type

Generic Name: Wet Labs ECO-AFL/FL Fluorometer

Acronym: ECO AFL/FL

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0172/

Generic Description:

The Environmental Characterization Optics (ECO) series of single channel fluorometers delivers both high resolution and wide ranges across the entire line of parameters using 14 bit digital processing. The ECO series excels in biological monitoring and dye trace studies. The potted optics block results in long term stability of the instrument and the optional anti-biofouling technology delivers truly long term field measurements.
more information from Wet Labs

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cast	cast number	unitless	cast
Station	station name	unitless	station
ISO_DateTime_UTC	Date and time (UTC) of cast in ISO 8601 format Format: %Y-%m-%dT%H:%M:%SZ	unitless	ISO_DateTime_UTC
Date	Date of cast Format: %Y-%m-%d	unitless	date
time_UTC	time of deployent, UTC Format: %H:%M:%S	unitless	time
timeS	Time, Elapsed	seconds	time_elapsed
depSM	Depth [salt water]	meters (m)	depth
prDM	Pressure, Digiquartz	decibars	press
t090C	Temperature	degrees Celsius	temp
t190C	Temperature, 2	degrees Celsius	temp
c0S_per_m	Conductivity	Siemens per meter (S/m)	cond
c1S_per_m	Conductivity, 2	Siemens per meter (S/m)	cond
sal00_1	Salinity, Practical	PSU	sal
sal11_1	Salinity, Practical, 2	PSU	sal
timeQ	Time, NMEA	seconds	time
timeY	Time, System	seconds	time
latitude	Latitude (positive values = North)	decimal degrees	lat
longitude	Longitude (negative values = West)	decimal degrees	lon
svCM_1	Sound Velocity	meters per second (m/s)	sound_vel
flECO_AFL	Fluorescence, WET Labs ECO-AFL/FL	milligrams per cubic meter (mg/m^3)	fluor
sbeox0ML_per_L	Oxygen, SBE 43	milliliters per liter (mL/L)	O2
sbox0Mm_per_Kg	Oxygen, SBE 43	micromoles per kilogram (umol/kg)	O2
sbeox0Mg_per_L	Oxygen, SBE 43	milligrams per liter (mg/L)	O2
sigma_E00	Density [sigma-theta]	kilograms per cubic meter (kg/m^3)	density
sigma_E11	Density, 2 [sigma-theta]	kilograms per cubic meter (kg/m^3)	density
potemp090C	Potential Temperature	degrees Celsius	potemp
potemp190C	Potential Temperature, 2	degrees Celsius	potemp
svCM_2	Sound Velocity [Chen-Millero]	meters per second (m/s)	sound_vel
sal00_2	Salinity, Practical	PSU	sal
sal11_2	Salinity, Practical, 2	PSU	sal
flag	flag	unitless	q_flag

Status message

Database

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Dataset: Chesapeake Bay CTD 2022