Dataset: GP15 Total Aerosols Leg 1

Name: Total aerosol trace elements from bulk aerosol samples collected on Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018
Published: 2020-12-17
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.834230.1

Spatial Extent: N:55.5948 E:-129.0395 S:22 W:-156.3461

Temporal Extent: 2018-09-20 - 2018-10-20

Project:

Collaborative Research: US GEOTRACES PMT: Quantification of Atmospheric Deposition and Trace Element Fractional Solubility (PMT Aerosol Collection)

US GEOTRACES Pacific Meridional Transect (GP15) (U.S. GEOTRACES PMT)

Program:

U.S. GEOTRACES (U.S. GEOTRACES)

Principal Investigator:

Clifton S. Buck (Skidaway Institute of Oceanography, SkIO)

Co-Principal Investigator:

William M. Landing (Florida State University, FSU - EOAS)

Scientist:

Christopher Marsay (Skidaway Institute of Oceanography, SkIO)

BCO-DMO Data Manager:

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

Version:

Version Date:

2020-12-17

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Total aerosol trace elements from bulk aerosol samples collected on Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018

Abstract:

This dataset contains concentrations of total aerosol trace elements collected from bulk aerosol samples on Leg 1 of the 2018 US GEOTRACES Pacific Meridional Transect.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2020-12-17	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.834230.1	2021-01-11

Methods & Sampling

A total of 12 48-hour integrated aerosol samples were collected during Leg 1 of the US GEOTRACES Pacific Meridional Transect research cruise (GP15), which took place on the R/V Revelle (cruise RR1814) during September-October 2018. The cruise track consisted of a southward transect across the North Pacific Ocean originating off of Alaska and terminating at Hawaii.

Bulk aerosol samples for multiple trace element analyses were collected using one of five Tisch Environmental high-volume (~1 m³ air min⁻¹) aerosol samplers (model 5170V-BL). For each deployment, 12 replicate 47 mm diameter Whatman 41 filters were loaded on open-face filter holders (Advantec MFS) installed on the aerosol sampler on a PVC adaptor plate (Shelley et al., 2015). Filters were acid-washed before use to reduce trace element blanks, following the procedure described by Morton et al. (2013). The samplers were deployed on the forward rail of the ship's 03 deck approximately 16m above sea level, to minimize the influence of sea spray on samples. Samplers were controlled by wind speed and direction, through a Campbell Scientific CR800 data-logger interfaced with an anemometer and wind vane set up in close proximity to the samplers, in order to eliminate contamination from the ship's stack exhaust. This setup was used to restrict sampling to periods when relative wind speed and direction were >0.5 m s⁻¹ and from within ±60° of the bow of the ship, respectively, for at least five continuous minutes.

Data Processing Description

Data Processing:
Data have been corrected for field and analytical blank. Reported total aerosol trace element concentrations values have been normalized to the volume of air filtered during sample collection. Each sample collection period produced 36 replicate filters. Three of those filters were digested to produce three replicate measurements of total particulate aerosol concentration. Data from the three replicates were averaged and reported along with the standard deviation. Outliers and replicate samples that were below the field blank value were not included in the mean. Data are marked as described in the datasheet.

Known Problems/Issues:
AEROS2 (Event 6546) was not analyzed due to exceptional contamination of the collection filters with sea spray.

Quality Flags:
Quality flags have been applied with the following definitions:
0 = No quality control;
1 = Good value;
2 = Probably good value;
3 = Probably bad value;
4 = Bad value;
5 = Value changed;
6 = Value Below Detection;
7 = Value in excess;
8 = Interpolated value;
9 = Missing value.

Detection Limits:
Method detection limit was calculated from 3*STDEV of the measured filter blank. Filter blank, and thus method detection limit, varied among the three filter lots used. Sample values were compared to the detection limit calculated from the blank in the corresponding lot. The detection limit of each of the 3 lots is reported in the attached Supplemental File (PDF). Reported detection limits were not normalized by air volume and sample data were evaluated relative to the method detection limit prior to the normalization step in data processing. Data below the detection limit are flagged with code 6 and no value reported ("nd").

Concentration Averages:
Data values are averages of 3 separate filter digestions, except when values were excluded because:
(a) a value was determined to be an outlier by the Grubbs Test;
(b) a value was below the method detection limit.

BCO-DMO Processing:
- renamed fields;
- added date/time fields in ISO8601 format and removed original day, month, year, and time columns.

Data Files

File
Aerosols_Total_Leg1.csv (Comma Separated Values (.csv), 3.77 KB) MD5:0cb05b8415f536bbaae00b784940151f Primary data file for dataset ID 834230

Supplemental Files

File
Total Aerosols PMT Leg 1 Detection Limits filename: Total_Aerosols_PMT_Leg1_Detection_Limits.pdf (Portable Document Format (.pdf), 177.73 KB) MD5:e007ed40a9c2c573bf46ba2ca553b0f7 Table of detection limits for each element reported in Clifton Buck's Total Aerosol data from Leg 1 of the GEOTRACES PMT cruise.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1756103
NSF Division of Ocean Sciences	OCE-1756104

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
RR1814	GP15 GP15 Leg1 33RR20180918 PMT US GEOTRACES PMT	2018-09-18	R/V Roger Revelle	Gregory A. Cutter (Chief Scientist) Karen L. Casciotti (Co-Chief Scientist) Phoebe J. Lam (Co-Chief Scientist)	data info

Instruments

Aerosol Sampler

Supplied Name: Tisch Environmental high-volume (~1 m3 air min-1) aerosol samplers (model 5170V-BL)

Supplied Description:

Instrument Type

Generic Name: Aerosol Sampler

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/13/

Generic Description:

A device that collects a sample of aerosol (dry particles or liquid droplets) from the atmosphere.

Anemometer

Supplied Name: anemometer

Supplied Description:

Instrument Type

Generic Name: Anemometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/101/

Generic Description:

An anemometer is a device for measuring the velocity or the pressure of the wind. It is commonly used to measure wind speed. Aboard research vessels, it is often mounted with other meteorological instruments and sensors.

Data Logger

Supplied Name: Campbell Scientific CR800 data-logger

Supplied Description:

Instrument Type

Generic Name: Data Logger

Generic Description:

Electronic devices that record data over time or in relation to location either with a built-in instrument or sensor or via external instruments and sensors.

Inductively Coupled Plasma Mass Spectrometer

Supplied Name: Perkin Elmer Nexion 300D ICP-Mass Spectrometer

Supplied Description:

Instrument Type

Generic Name: Inductively Coupled Plasma Mass Spectrometer

Acronym: ICP Mass Spec

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/

Generic Description:

An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise_id	Cruise identifier	unitless	cruise_id
GEOTRC_EVENTNO	Event number	unitless	event
GEOTRC_SAMPNO	GEOTRACES sample number	unitless	sample
Julian_Day	Sampling start Julian day	unitless	julian_day
Start_ISO_DateTime_UTC	Date and time (UTC) at start of sample collection; formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ Format: %Y-%m-%dT%H:%MZ	unitless	ISO_DateTime_UTC
Start_Lat	Latitude at start of sample collection	degrees North	lat
Start_Long	Longitude at start of sample collection	degrees East	lon
End_ISO_DateTime_UTC	Date and time (UTC) at end of sample collection; formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ Format: %Y-%m-%dT%H:%MZ	unitless	ISO_DateTime_UTC
End_Lat	Latitude at end of sample collection	degrees North	lat
End_Long	Longitude at end of sample collection	degrees East	lon
Air_Vol_Total	Total volume of air sampled per filter	cubic meters (m^3)	sample_volume
Al_A_T_CONC_HIVOL_vzysau	Total particulate aerosol Al concentration, average	picomoles per cubic meter (pmol/m^3)	Al
SD1_Al_A_T_CONC_HIVOL_vzysau	One standard deviation of Al_A_T_CONC_HIVOL_vzysau	picomoles per cubic meter (pmol/m^3)	Al
Flag_Al_A_T_CONC_HIVOL_vzysau	Quality flag for Al_A_T_CONC_HIVOL_vzysau	unitless	q_flag
Co_A_T_CONC_HIVOL_t5blmu	Total particulate aerosol Co concentration, average	picomoles per cubic meter (pmol/m^3)	Co
SD1_Co_A_T_CONC_HIVOL_t5blmu	One standard deviation of Co_A_T_CONC_HIVOL_t5blmu	picomoles per cubic meter (pmol/m^3)	Co
Flag_Co_A_T_CONC_HIVOL_t5blmu	Quality flag for Co_A_T_CONC_HIVOL_t5blmu	unitless	q_flag
Cr_A_T_CONC_HIVOL_urgmp9	Total particulate aerosol Cr concentration, average	picomoles per cubic meter (pmol/m^3)	Cr
SD1_Cr_A_T_CONC_HIVOL_urgmp9	One standard deviation of Cr_A_T_CONC_HIVOL_urgmp9	picomoles per cubic meter (pmol/m^3)	Cr
Flag_Cr_A_T_CONC_HIVOL_urgmp9	Quality flag for Cr_A_T_CONC_HIVOL_urgmp9	unitless	q_flag
Cu_A_T_CONC_HIVOL_zcxec3	Total particulate aerosol Cu concentration, average	picomoles per cubic meter (pmol/m^3)	Cu
SD1_Cu_A_T_CONC_HIVOL_zcxec3	One standard deviation of Cu_A_T_CONC_HIVOL_zcxec3	picomoles per cubic meter (pmol/m^3)	Cu
Flag_Cu_A_T_CONC_HIVOL_zcxec3	Quality flag for Cu_A_T_CONC_HIVOL_zcxec3	unitless	q_flag
Fe_A_T_CONC_HIVOL_lzv6fm	Total particulate aerosol Fe concentration, average	picomoles per cubic meter (pmol/m^3)	Fe
SD1_Fe_A_T_CONC_HIVOL_lzv6fm	One standard deviation of Fe_A_T_CONC_HIVOL_lzv6fm	picomoles per cubic meter (pmol/m^3)	Fe
Flag_Fe_A_T_CONC_HIVOL_lzv6fm	Quality flag for Fe_A_T_CONC_HIVOL_lzv6fm	unitless	q_flag
Mn_A_T_CONC_HIVOL_6xvnxr	Total particulate aerosol Mn concentration, average	picomoles per cubic meter (pmol/m^3)	Mn
SD1_Mn_A_T_CONC_HIVOL_6xvnxr	One standard deviation of Mn_A_T_CONC_HIVOL_6xvnxr	picomoles per cubic meter (pmol/m^3)	Mn
Flag_Mn_A_T_CONC_HIVOL_6xvnxr	Quality flag for Mn_A_T_CONC_HIVOL_6xvnxr	unitless	q_flag
Ni_A_T_CONC_HIVOL_bornuk	Total particulate aerosol Ni concentration, average	picomoles per cubic meter (pmol/m^3)	Ni
SD1_Ni_A_T_CONC_HIVOL_bornuk	One standard deviation of Ni_A_T_CONC_HIVOL_bornuk	picomoles per cubic meter (pmol/m^3)	Ni
Flag_Ni_A_T_CONC_HIVOL_bornuk	Quality flag for Ni_A_T_CONC_HIVOL_bornuk	unitless	q_flag
Pb_A_T_CONC_HIVOL_ngecen	Total particulate aerosol Pb concentration, average	picomoles per cubic meter (pmol/m^3)	Pb
SD1_Pb_A_T_CONC_HIVOL_ngecen	One standard deviation of Pb_A_T_CONC_HIVOL_ngecen	picomoles per cubic meter (pmol/m^3)	Pb
Flag_Pb_A_T_CONC_HIVOL_ngecen	Quality flag for Pb_A_T_CONC_HIVOL_ngecen	unitless	q_flag
Ti_A_T_CONC_HIVOL_nzb78m	Total particulate aerosol Ti concentration, average	picomoles per cubic meter (pmol/m^3)	Ti
SD1_Ti_A_T_CONC_HIVOL_nzb78m	One standard deviation of Ti_A_T_CONC_HIVOL_nzb78m	picomoles per cubic meter (pmol/m^3)	Ti
Flag_Ti_A_T_CONC_HIVOL_nzb78m	Quality flag for Ti_A_T_CONC_HIVOL_nzb78m	unitless	q_flag
V_A_T_CONC_HIVOL_nclmcz	Total particulate aerosol V concentration, average	picomoles per cubic meter (pmol/m^3)	V
SD1_V_A_T_CONC_HIVOL_nclmcz	One standard deviation of V_A_T_CONC_HIVOL_nclmcz	picomoles per cubic meter (pmol/m^3)	V
Flag_V_A_T_CONC_HIVOL_nclmcz	Quality flag for V_A_T_CONC_HIVOL_nclmcz	unitless	q_flag
Zn_A_T_CONC_HIVOL_jsnc4j	Total particulate aerosol Zn concentration, average	picomoles per cubic meter (pmol/m^3)	Zn
SD1_Zn_A_T_CONC_HIVOL_jsnc4j	One standard deviation of Zn_A_T_CONC_HIVOL_jsnc4j	picomoles per cubic meter (pmol/m^3)	Zn
Flag_Zn_A_T_CONC_HIVOL_jsnc4j	Quality flag for Zn_A_T_CONC_HIVOL_jsnc4j	unitless	q_flag

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Dataset: GP15 Total Aerosols Leg 1