BODC Cruise Metadata Report for RRS James Cook (740H) cruise JC142 (MarineE-tech)

Introduction

This report collates information from the BODC cruise inventory and oceanographic databases. It presents

Cruise Inventory Information
A summary of BODC data holdings for the cruise from the
- National Oceanographic Database
- Projects Database
References - including cruise tracks and cruise reports

Cruise Inventory Information

Long name	RRS James Cook (740H) cruise JC142 (MarineE-tech)
Short name	JC142 (MarineE-tech)
Objectives and Narrative	Cruise JC142 departed Santa Cruz, Tenerife of the 29th of October 2016 on the RRS James Cook. The aims and objectives of Cruise JC142 were to undertake a holistic study of a simple seamount in the NE Atlantic with the focus on those processes that control the formation, composition and distribution of ferromanganese crusts. These crusts are rich in scares elements including cobalt and tellurium that are considered critical to emerging technologies and especially those that needed for low-carbon energy production. Cruise JC142 was in support of the NERC research programme 'SoS Minerals', of which MarineE-tech formed one of four large consortium projects.
Ship	RRS James Cook
Departure Port	Santa Cruz de Tenerife, Spain
Departure Date	2016-10-29
Arrival Port	Santa Cruz de Tenerife, Spain
Arrival Date	2016-12-08
Principal Scientist(s)	Bramley J Murton (National Oceanography Centre, Southampton)
Responsible Organisation	National Oceanography Centre, Southampton
Associated Project(s)
IHB Sea Areas Visited	North East Atlantic Ocean (limit 40W)
Marsden Squares Visited	75
Work Area Description	Tropic Seamount, Western Sahara Seamount Province
Unable to lookup cruise bounds at this time
Work Area Bounding Polygon
Southern Limit	unknown
Northern Limit	unknown
Western Limit	unknown
Eastern Limit	unknown

Cruise Inventory Datasets

Physical oceanography
Current profiler (eg ADCP)	Quantity: activity duration in days = 40 Description: Both the 75 kHz and 150 kHz ADCP systems were run throughout the cruise as requested. The 75 kHz was run in broadband mode with 48 bins of 16 m with an 8 m blank. The 150 kHz was run in narrowband mode with 96 bins of 4 m with an 4 m blank. Bottom tracking was enabled on the run into port to allow the orientation of the transducers to be calibrated. These were found to be offset from the orientation last recorded, and the data required re-calibration.
Other physical oceanographic measurements	Quantity: activity duration in days = 46 Description: The Sonardyne USBL system was used to track every deployment of the AUV and ROV.
Surface measurements underway (T,S)	Quantity: activity duration in days = 40 Description: The Surfmet system was run throughout the cruise.
Water bottle stations	Quantity: 100 Description: Water bottle (Niskin) samples for salinity, nutrient and microbial analyses
Biology and fisheries
Other biological/fisheries measurement	Quantity: number of stations = 59 Description: Various fauna collected from 59 ROV stations for later identification and genetic studies
Geology and geophysics
Core - soft bottom	Quantity: number of cores = 24 Description: Sediment cores, including ROV push cores and gravity cores for grain size analyses and geochemistry.
In-situ seafloor measurement/sampling	Quantity: number of samples = 350 Description: Grab and drilled samples of cobalt-rich crusts, phosphorite and volcanic rocks taken by ROV from in situ locations on the sea floor. For later geochemical and isotopic analyses
Multi-beam echosounding	Quantity: activity duration in days = 40 Description: Swath sonar mapping and sub-bottom profiling: The EM120 multi-beam echo sounder was run throughout the cruise while in international waters. Data was logged in Kongsberg .all format. The centre beam depth was logged to Techsas and Level-C.
Single channel seismic reflection	Quantity: activity duration in days = 40 Description: The SBP120 Sub Bottom Profiler was run throughout the cruise while in international waters. There are breaks in the data due to the acoustic instrumentation being isolated during OBEM deployment and recovery. Data was recorded in Kongsberg raw format and in Seg-Y format.
Single-beam echosounding	Quantity: activity duration in days = 40 Description: The EA600 single-beam echo-sounder was run throughout the cruise while in international waters. All depths were logged to the Techsas and Level-C data loggers and raw files in raw Kongsberg .all format

Cruise Inventory Mooring/Buoy Operations

No information on datasets is currently available

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series	Instrument Description	Parameters
1	Meteorological data logger	Air pressure Air temperature Atmospheric humidity Date and time Horizontal spatial co-ordinates Raw light meter output Solar Radiation Visible waveband radiance and irradiance measurements in the atmosphere Wind strength and direction
1	Multi-beam echosounder	Bathymetry and Elevation Date and time Horizontal platform movement Horizontal spatial co-ordinates Platform or instrument orientation
1	Multiple instrument types	Chlorophyll pigment concentrations in water bodies Date and time Electrical conductivity of the water column Horizontal spatial co-ordinates Metadata parameters Raw fluorometer output Raw suspended particulate material concentration sensor output Salinity of the water column Temperature of the water column Transmittance and attenuance of the water column

Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)

Full List

BODC Reference	Instrument Description	Date/Time	Location
1814849	Multi-beam echosounder	2016-10-29 10:46Z to 2016-12-08 09:23Z	23° 37' N to 28° 27' N; 20° 56' W to 16° 13' W	Click for more
1814850	Meteorological data logger	2016-10-29 10:46Z to 2016-12-08 09:23Z	23° 37' N to 28° 27' N; 20° 56' W to 16° 13' W	Click for more
1814862	Multiple instrument types	2016-10-29 10:46Z to 2016-12-08 09:23Z	23° 37' N to 28° 27' N; 20° 56' W to 16° 13' W	Click for more