Dataset: Pump CTD Profiles

Name: Pump CTD profiles from the EMB276 cruise on R/V Elisabeth Mann Borgese in the Baltic Sea from September 20-27, 2021
Published: 2024-08-16
Keywords: superoxide, stratification, redox, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.934904.1

Spatial Extent: N:58.01083333 E:20.35083333 S:56.64388889 W:19.19333333

Data were collected from September 20 - 27, 2021 during a research cruise (EMB276) on the R/V Elisabeth Mann Borgese. Seven different stations in and around the eastern Gotland Basin were studied

Temporal Extent: 2021-09-20 - 2021-09-27

Project:

Collaborative Research: Manganese Cycling and Coupling Across Redox Boundaries within Stratified Basins of the Baltic Sea (MnIONS)

Principal Investigator:

Colleen Hansel (Woods Hole Oceanographic Institution, WHOI)

Scientist:

Lina Taenzer (Woods Hole Oceanographic Institution, WHOI)

Contact:

Lina Taenzer (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2024-08-16

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Pump CTD profiles from the EMB276 cruise on R/V Elisabeth Mann Borgese in the Baltic Sea from September 20-27, 2021

Abstract:

Pump CTD profiles include data on time, latitude, longitude, depth, h2s, o2, sulfide, pH, po4, NO3, NO2, NH4, SiO2, fluorescence, turbidity, density, temperature, and salinity from six stations in the Baltic Sea collected between September 20 - 27, 2021. Data was collected from the R/V Elisabeth Mann Borgese.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2024-08-16	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.934904.1	2024-10-09

Methods & Sampling

An independent pump CTD was used to collect data on macronutrients, described by Strady et al., 2008 and Schulz-Vogt et al., 2019 . Nutrient analyses were done according to guidelines of Grasshoff et al., 1999, with the precision on each nutrient being 0.01 (PO₄^3-), 0.02 (NO₃^-), 0.006 (NO₂^-), and 0.05 (NH₄⁺) µM.

The pump CTD was designed by groups at IOW and MPI, for the CTD in the PUMP–CTD-System a SBE911+ from SEABIRD-Electronics USA is used. Further details are provided in Strady et al., (2008).

CTD sensor measurements: temperature, conductivity and pressure. Temperature and salinity are mean values obtained from Temp (ITS-90) and Salinity Practical (PSU) from CTD data. Nutrients measured with Quattro Seal: NO3, NO2, NH4 and PO4.

Sensors connected to pump CTD O2, H2S and pH. See supplemental files for detection limits and calibration of these sensors.

Data Processing Description

The nutrient pump CTD data are smoothed using a gliding average over 7 depths.

BCO-DMO Processing

* merged 6 profiles into 1 file
* standardized date formet (mm-dd-yy)
* added ISO DateTime parameter
* adjusted parameter names to comply with database requirements

Data Files

File
934904_v1_ctd.csv (Comma Separated Values (.csv), 6.62 MB) MD5:b565987d8742cab8b206c85c826a7e30 Primary data file for dataset ID 934904, version 1

Supplemental Files

File
Sensors connected to pump CTD.pdf (Portable Document Format (.pdf), 82.80 KB) MD5:f8d4ada9210d9b3f6114f89dfe20403d Detection limit, range and calibration of the sensors connected to the pump CTD

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1924236

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
EMB276		2021-09-17	R/V Elisabeth Mann Borgese	Maren Voss (Chief Scientist)	data info

Instruments

CTD Sea-Bird 911

Supplied Name: PUMP–CTD-System

Supplied Description:

Pump CTD was designed by groups at IOW and MPI, for the CTD in the PUMP–CTD-System a SBE911+ from SEABIRD-Electronics USA is used. Further details are provided in Strady et al., (2008).

Instrument Type

Generic Name: CTD Sea-Bird 911

Acronym: CTD SBE 911

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/

Generic Description:

The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a 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, fluorescence, light (PAR), light transmission, etc.). 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
cruise_name	Name of the cruise	unitless	cruise_name
station_number	Station number	unitless	sta_name
station_name	Name of the station	unitless	sta_name
date	Date Format: %m-%d-%y	unitless	date
time_UTC	Time in UTC Format: %H:%M:%S	unitless	time
ISO_DateTime_UTC	Date Time in ISO format notation (UTC timezone) Format: %Y-%m-%dT%H:%M:%SZ	unitless	ISO_DateTime_UTC
latitude_N	latitude, south is negative	decimal degrees	lat
longitude_E	longitude, west is negative	decimal degrees	lon
max_depth_m	the maximum depth at that station	meters (m)	depth_bottom
depth	depth of data	meters (m)	depth
H2S_uM	hydrogen sulfide	micromolar (µM)	H2S
O2_uM	oxygen	micromolar (µM)	O2
total_sulfide_umol_l	total sulfide	micromole per liter (µmol/L)	sulfide
pH	pH	unitless	pH
PO4_umol_l	phosphate	micromole per liter (µmol/L)	PO4
NO3	nitrate	micromole per liter (µmol/L)	NO3
NO2_umol_l	nitrite	micromole per liter (µmol/L)	NO2
NH4_umol_l	ammonium	micromole per liter (µmol/L)	NH4
SiO2_umol_l	silicate	micromole per liter (µmol/L)	SiO2
Fluor_mg_m3	fluorescence	mg/m^3	fluor
Turb_NTU	turbidity	NTU	turbidity
Density_Sig_tet	density	unitless	density
Temp_C	temperature	degrees Celsius (°C)	temp
Salinity_PSU_	salinity	PSU	sal

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Dataset: Pump CTD Profiles