Dataset: event_logs

Name: Scientific sampling event logs from R/V Atlantis and R/V F.G. Walton Smith cruises AT18-02 and WS1010 in the Gulf of Mexico Macondo wellhead area in 2010 (DWH_Deep_Microbes project)
Published: 2012-09-24
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.3726.1

Spatial Extent: N:28.8592 E:-88.30973 S:27.3652 W:-90.56708

Temporal Extent: 2010-05-26 - 2010-12-02

Project:

RAPID Deepwater Horizon Oil Spill: Deep pelagic and benthic impacts of the oil spill (DWH_Deep_Microbes)

Program:

Gulf of Mexico - Deepwater Horizon Oil Spill (GoMX - DHOS)

Chief Scientist:

Samantha B. Joye (University of Georgia, UGA)

BCO-DMO Data Manager:

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

Version:

Version Date:

2012-09-24

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Scientific sampling event logs from R/V Atlantis and R/V F.G. Walton Smith cruises AT18-02 and WS1010 in the Gulf of Mexico Macondo wellhead area in 2010 (DWH_Deep_Microbes project)

Abstract:

Scientific sampling event logs from R/V Atlantis and R/V F.G. Walton Smith cruises AT18-02 and WS1010 in the Gulf of Mexico Macondo wellhead area in 2010.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2012-09-24	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.3726.1	2019-08-01

Description

Sampling event logs from cruises WS1010 and AT18-02 in the Gulf of Mexico during 2010.

Methods & Sampling

AT18-02 Notes:
11/27/10 Operations: Brine Microbial Observatory Project (included in another data submission).
11/30/10: Subsequent MUC/CTD operations were not completed due to the bad weather.

WS1010 Notes:
There were no stations numbered 65 and 74.
There was no CTD cast number 78.
Personnel transfers took place on 5/29/10 and 6/2/10 to 6/3/10.

Data Processing Description

BCO-DMO made the following modifications to the original event logs:
For both cruises:
- Changed parameter names to conform with BCO-DMO convention.
- Replaced blanks with 'nd' to indicate 'no data'.

AT18-02:
- Dates and time were assumed to be local (based on dates/times in the CTD data).
- Added the 'comment' column for misc. sampling notes.
- Separated the original 'event_description' column into 'instr', 'cast', and 'action'.
- Added event numbers ending in 'b' for instrument recovery events.
- Added event numbers for transit events.
- Added the following events: 11.07, 12.07, 15.03 (these events were recorded in the original event log, but did not have distinct event numbers).
-Corrected event number of event 12.08 (was originally recorded as 12.06, creating a duplicate event number).
-For events 15.01b, 15.02, and 15.02b, changed date from 12/1 to 12/2, based on time passing midnight.

WS1010:
-Dates and times were assumed to be UTC (based on dates/times in the CTD data).

Data Files

File
eventlogs.csv (Comma Separated Values (.csv), 17.27 KB) MD5:0d51c4906719444ba01371b8af7e7d41 Primary data file for dataset ID 3726

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1043225

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT18-02		2010-11-08	R/V Atlantis	Samantha B. Joye (Chief Scientist)	data info
WS1010		2010-05-21	R/V F.G. Walton Smith	Samantha B. Joye (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
cruiseid	Unique identifier for the cruise.	text	cruiseid
platform	Name of the ship.	text	platform
year	Year of the cruise in YYYY format.	unitless	year
event	Unique event number. The first one or two digits (before the decimal) are the station number. The two digits after the decimal are the consecutive cast number at that station.	unitless	event
instr	Name of the instrument.	text	instrument
cast	Consecutive cast number of the instrument.	unitless	cast
action	Identifies whether the event was the start or end of a cast/dive/deployment. Originally named 'start_end'.	text	action
sta	Station number (also called Site ID).	unitless	sta
sta_desc	Station name/description. Originally called 'Site Name' on WS1010 cruise and 'Lease Block Station Name' on AT18-02 cruise.	unitless	station_desc
sta_cast	Consecutive cast number of the instrument at a particular station.	unitless	cast
time_local	Local time, 24-hour clock. (AT18-02 event log was provided in local time. Converted to UTC using time zone difference of +6).	HHMM	time_local
month_utc	2-digit (mm) month of year; UTC.	mm (01 to 12)	month_utc
day_utc	2-digit (dd) day of month; UTC.	dd (01 to 31)	day_utc
time_utc	UTC time, 24-hour clock.	HHMM	time_utc
lat	Latitude; positive values = North.	decimal degrees	lat
lon	Longitude; negative values = West.	decimal degrees	lon
depth	Sampling depth.	meters	depth
depth_max	Maximum depth of water.	meters	depth_max
bottles_fired	Indicates whether or not bottles were fired from the CTD. Y = yes; N = no.	Y or N	no_bcodmo_term
si	Last name of the investigator recording the event (originally called responsible science party member or PI).	text	recorder
comment	Free-text comments related to the event.	text	comment
date_local	Date, local time. (AT18-02 event log was provided in local time. Converted to UTC using time zone difference of +6) in mm/dd/YYYY format.	unitless	date_local
time_diff	The number of hours added to local time to convert to UTC. For cruise AT18-02, time_diff = +6 (DST not in effect).	hours	time_diff

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