Dataset: GP17-OCE Event Log

Name: Scientific sampling event log from the US GEOTRACES GP17-OCE cruise on R/V Roger Revelle (RR2214) from December 2022 to January 2023
Published: 2024-09-30
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.927550.1

Spatial Extent: N:-17.536523 E:-73.514377 S:-67.009839 W:-152.000291

South Pacific and Southern Ocean

Temporal Extent: 2022-11-28 - 2023-01-24

Project:

US GEOTRACES GP17 Section: South Pacific and Southern Ocean (GP17-OCE) (GP17-OCE)

Program:

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

Principal Investigator:

Benjamin Twining (Bigelow Laboratory for Ocean Sciences)

Co-Principal Investigator:

Gregory A. Cutter (Old Dominion University, ODU)

Jessica N. Fitzsimmons (Texas A&M University, TAMU)

BCO-DMO Data Manager:

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

Version:

Version Date:

2024-09-30

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Scientific sampling event log from the US GEOTRACES GP17-OCE cruise on R/V Roger Revelle (RR2214) from December 2022 to January 2023

Abstract:

This dataset is the scientific sampling event log from the US GEOTRACES GP17-OCE cruise on R/V Roger Revelle (RR2214). The expedition departed Papeete, Tahiti (French Polynesia) on December 1st, 2022 and arrived in Punta Arenas, Chile on January 25th, 2023. The cruise took place in the South Pacific and Southern Oceans aboard the R/V Roger Revelle with a team of 34 scientists led by Ben Twining (Chief Scientist), Jessica Fitzsimmons, and Greg Cutter (Co-Chief Scientists). GP17 was planned as a two-leg expedition, with its first leg (GP17-OCE) as a southward extension of the 2018 GP15 Alaska-Tahiti expedition and a second leg (GP17-ANT; December 2023-January 2024) into coastal and shelf waters of Antarctica's Amundsen Sea.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2024-09-30	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.927550.1	2024-10-07

Methods & Sampling

The event log was recorded during the cruise using the R2R ELOG system (https://www.rvdata.us/about/event-log).

BCO-DMO Processing

- Imported the BCO-DMO modified file (originally "R2R_ELOG_rr2214_FINAL_EVENTLOG_20230126_135207_cleaned for BCODMO.xlsx") into the BCO-DMO system.
- Flagged "NaN" as a missing data identifier (missing data are empty/blank in the final CSV file.)
- Replaced "rr2214" with "RR2214" in the "Cruise" column.
- Cleaned up "Transect" column by moving information to the "Comment" column. For rows where a station number was entered in "Transect", moved that station number to the "Station" column.
- In "Station" column: replaced "Station 3" with "3", replaced "STN14" with "14", and replaced "test station 1" with "Test 1".
- Renamed fields to comply with BCO-DMO naming conventions.
- Replaced year of "2032" with "2023" in the "DateTimeUTC" column.
- Replaced "4191 m" in Seafloor column with "4191".
- Converted both date/time columns to ISO 8601 (UTC) format.
- Saved the final file as "927550_v1_gp17-oce_event_log.csv".

Data Files

File
927550_v1_gp17-oce_event_log.csv (Comma Separated Values (.csv), 123.46 KB) MD5:8341620458d1f734d8e808e539972f88 Primary data file for dataset ID 927550, version 1

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-2023206
NSF Division of Ocean Sciences	OCE-2023237
NSF Division of Ocean Sciences	OCE-2023315

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
RR2214	GP17 GP17-OCE 33RR20221201	2022-12-01	R/V Roger Revelle	Benjamin Twining (Chief Scientist) Gregory A. Cutter (Co-Chief Scientist) Jessica N. Fitzsimmons (Co-Chief Scientist)	data info

Instruments

None available yet

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	Cruise name/ID	unitless	cruise_id
Event	Event number	unitless	event
Instrument	Instrument: 36pl Rosette = ODF CTD Rosette. Aerosol Sampler = High-volume aerosol sampler. Argo = Deployment of Argo float. Be 7 = Collection of large volumes (ca. 700L) of water from multiple depths in the upper 200m using a deck-mounted centrifugal pump attached to tubing. bio-Argo = Bio Argo float. GeoFish = A towed near surface (<2 m) sampling system for collection of trace metal clean seawater. Geotraces C = GEOTRACES CTD Rosette. McLane = Dual-flow McLane Research in-situ pumps (WTS-LV). NEMO = Deployment of a PROVOR NEMO float. Other = Deep Argo float deployments; see the Comment column. Ship = Used for test event. Surf Ra Pump = Hand-deployed surface pump to collected ca. 1500L of surface water for measurement of Radium isotopes. Underway = Used to mark the beginning and end of sampling of surface water via the ship's through-hull clean sampling system.	unitless	instrument
Action	Description of the event/action, e.g. deploy, recover, start, end, etc.	unitless	action
Transect	Transect number or descripton; primarily used for Aerosol events	unitless	transect
Station	Station number. Station numbers starting with "C" indicate the 3 stations sampled for a Chilean collaborator after the final official station. The C stands for "coastal".	unitless	station
Cast	Cast number	unitless	cast
Latitude	Latitude of event; negative values = South	decimal degrees	lat
Longitude	Longitude of event; negative values = West	decimal degrees	lon
sample_depth_min	Minimum sample depth	meters (m)	depth
sample_depth_max	Maximum sample depth	meters (m)	depth
GEOTRACES_ID_Num_Range	Range of GEOTRACES sample ID numbers applicable to the event	unitless	sample_descrip
Seafloor	Bottom depth	meters (m)	depth_w
Author	Person recording the event in the event log	unitless	recorder
Comment	Comments/notes about the event	unitless	comment
DateTimeUTC	Date and time (UTC) of the event in format YYYYmmdd.HHMM	unitless	date
ISO_DateTime_UTC	Date and time (UTC) of the event in ISO 8601 format Format: %Y-%m-%dT%H:%M:%SZ	unitless	ISO_DateTime_UTC
GPS_Time	Date and time (UTC) according to the GPS in ISO 8601 format Format: %Y-%m-%dT%H:%M:%SZ	unitless	ISO_DateTime_UTC
Revisions	History of revisions to the event made during the cruise	unitless	comment

Status message

Database

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Dataset: GP17-OCE Event Log