Dataset: GP15 Event Log

Name: Scientific sampling event log from the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) from September to November 2018
Published: 2021-03-25
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.776755.4

Spatial Extent: N:57 E:-129 S:-20 W:-157

Temporal Extent: 2018-09-19 - 2018-11-23

Project:

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

Program:

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

Chief Scientist:

Gregory A. Cutter (Old Dominion University, ODU)

Co-Chief Scientist:

Karen L. Casciotti (Stanford University)

Phoebe J. Lam (University of California-Santa Cruz, UCSC)

Contact:

Karen L. Casciotti (Stanford University)

BCO-DMO Data Manager:

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

Version:

Version Date:

2021-03-25

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Scientific sampling event log from the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) from September to November 2018

Abstract:

Scientific sampling event log from the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) from September to November 2018. GP15 was carried out on the R/V Roger Revelle and was split into two legs: RR1814 (Seattle, WA to Hilo, HI) and RR1815 (Hilo, HI to Papeete, French Polynesia).

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2021-03-25	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.776755.4	2021-03-25
2020-03-02	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.776755.3	2020-08-04

Description

Scientific sampling event log from the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) from September to November 2018.

Methods & Sampling

Event description codes:
nd = unknown/not entered
30-ODF = 30L Niskin Rosette
GS = 36pl 10L Rosette
Be-7 = Beryllium-7
GT-C = GEOTRACES carousel
GeoF = GeoFish w/ GEOTRACES #; TM diss/uf
McL-Prof = McLane pump profile
Aeros = Aerosol sampler
Argo = Argo Float deployment
NEMO = NEMO Float deployment
Ra/Th/Pig = Ra/Th/Pigment Niskin Cast
Surf Ra Pump = Surface Ra pump
Rain = Rain sample
MTC = Multi-Corer
Mono = Mono-Corer
XBT = XBT
XCTD = XCTD
Buoy = Buoy deployment
UWay = Ship's Underway system sample

Sample description codes:
nd = unknown/not recorded
diss = dissolved samples
diss+part = dissolved and particulate samples
unfilt = unfiltered seawater
filter = filter for particulates
diss+UF = Dissolved TM, Mn; Unfiltered TM
Argo = Argo Float deployment
dirt = Sediments
part = Particle
none = none

Data Processing Description

Event Log Editing History (yyyy-mm-dd):
2019-05-14. PJL. Filled in some missing McLane pump entries (in red) and corrected some typos.
2019-07-15. LMO. Corrections and additions f/cast sheets.
2019-09-24. CSB. Filled in missing Aerosol and rain info.
2019-09-24. MS. Filled in missing Be-7 info.
2019-09-24. ELR. Filled in missing Ra pump data.
2019-09-24. VS. Filled in missing underway data.
2019-10-01. LBA/JL. Filled in missing underway and GeoF data.
2019-10-06. KLC. Collated and rechecked.
2019-10-10. BC. Filled missing underway sample info.
2019-10-10. PJL. Filled missing McLane pump info.
2019-10-14. KLC. Filled 'nd' ('not determined') for info that could exist, but was not collected; and 'na' ('not applicable') for info that is not applicable, or does not exist.
2020-03-02. KLC. Fixed time, cast #, and author on initial underway sample at station 5.

2020-07-22. SMR/BCO-DMO:
- modified parameter names;
- formatted times to hh:mm;
- formatted dates to yyyy-mm-dd;
- filled blank comments with "na" (not applicable);
- EVENTNO 6990 date_start was 11/19118; changed to 2018-11-19;
- EVENTNO 6931 date_start was 11/13/13; changed to 2018-11-13;
- EVENTNO 6917 date_start was 11/11/16; changed to 2018-11-11;
- EVENTNO 6621 date_start was 10/07/17; changed to 2018-10-07;
- EVENTNO 6723 date_end had extra slash, 10//17/18; fixed and re-formatted;
- EVENTNO 6900 date_end was 11/10/19; changed to 2018-11-10;
- EVENTNO 6901 date_end was 11/10/19; changed to 2018-11-10;
- EVENTNO 6904 date_end was 11/10/19; changed to 2018-11-10;
- EVENTNO 6936 date_end was 11/13/16; changed to 2018-11-13;
- EVENTNO 6790 date_end was 10/28/17; changed to 2018-10-17.

2021-03-25. SMR/BCO-DMO. Made the following corrections to dates/time based on correspondence with BODC & the cruise chief scientist:
- EVENTNO 6774 date_end was 2018-10-21; changed to 2018-10-25;
- EVENTNO 6963 date_end was 2018-11-15; changed to 2018-11-16;
- EVENTNO 6840 date_end was 2018-11-01; changed to 2018-11-02;
- EVENTNO 6817 date_start was 2018-10-31; changed to 2018-10-30;
- EVENTNO 6559 date_end was 2018-09-28; changed to 2018-09-29;
- EVENTNO 6540 time_end_utc was 19:26; changed to 19:46 (approximate end time);
- EVENTNO 6839 date_end was 2018-11-02; changed to 2018-11-02;
- EVENTNO 6960 time_end_utc was 19:24; changed to 19:54 (approximate end time);
- EVENTNO 7006 date_end was 2018-11-20; changed to 2018-11-21.

Data Files

File
GP15_Event_Log.csv (Comma Separated Values (.csv), 58.38 KB) MD5:830711a7a013f91c03d480323026f511 Primary data file for dataset ID 776755

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1657781
NSF Division of Ocean Sciences	OCE-1657944
NSF Division of Ocean Sciences	OCE-1658318

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
RR1815	GP15 GP15 Leg 2 33RR20180918 PMT US GEOTRACES PMT	2018-10-24	R/V Roger Revelle	Gregory A. Cutter (Chief Scientist) Karen L. Casciotti (Co-Chief Scientist) Phoebe J. Lam (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
Latitude	Latitude; positive values = North	decimal degrees	lat
Longitude	Longitude; positive values = East	decimal degrees	lon
sample_depth_min	Minimum sampling depth	meters (m)	depth
sample_depth_max	Maximum sampling depth	meters (m)	depth
bottom_depth	Bottom depth	meters (m)	depth_bottom
time_start_utc	Time (UTC) at start of event; format: hh:mm	unitless	time_utc
date_end	Date (UTC) at end of event; format: yyyy-mm-dd	unitless	date_utc
time_end_utc	Time (UTC) at end of event; format: hh:mm	unitless	time_utc
samples_taken	Description of samples taken: nd = unknown/not recorded diss = dissolved samples diss+part = dissolved and particulate samples unfilt = unfiltered seawater filter = filter for particulates diss+UF = Dissolved TM, Mn; Unfiltered TM Argo = Argo Float deployment dirt = Sediments part = Particle none = none	unitless	sample_descrip
GEOTRC_SAMPNO_Range	Range of GEOTRACES sample ID numbers applicable to the event	unitless	sample_descrip
author	Initials of the person recording the event	unitless	recorder
EVENTNO	Event number	unitless	event
comment	Notes/comments about the event	unitless	comment
STNNBR	Station number	unitless	station
CASTNO	Cast number	unitless	cast
Event_Descrip	Event description: nd = unknown/not entered 30-ODF = 30L Niskin Rosette GS = 36pl 10L Rosette Be-7 = Beryllium-7 GT-C = GEOTRACES carousel GeoF = GeoFish w/ GEOTRACES #; TM diss/uf McL-Prof = McLane pump profile Aeros = Aerosol sampler Argo = Argo Float deployment NEMO = NEMO Float deployment Ra/Th/Pig = Ra/Th/Pigment Niskin Cast Surf Ra Pump = Surface Ra pump Rain = Rain sample MTC = Multi-Corer Mono = Mono-Corer XBT = XBT XCTD = XCTD Buoy = Buoy deployment UWay = Ship's Underway system sample	unitless	ev_type
date_start	Date (UTC) at start of event; format: yyyy-mm-dd	unitless	date_utc

Status message

Database

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Dataset: GP15 Event Log