RRS Charles Darwin CD40

Cruise summary report

Cruise Info.
Ship name (ship code)	RRS Charles Darwin (74AB)
Cruise identifier	CD40
Cruise period	1989-06-19 — 1989-07-22
Status	Completed
Objectives	Marine geophysics
Chief scientist	Graham K Westbrook (University of Birmingham Department of Geological Sciences)
Ocean/sea areas
General	North East Pacific Ocean (limit 180W)
Specific	NE Pacific Ocean
Measurements
Geology and geophysics
Single-beam echosounding	Quantity: track kilometres = 7120 Description: 3.5kHz
Multi-beam echosounding	Quantity: track kilometres = 7120 Description: 10kHz
Long/short range side scan sonar	Quantity: track kilometres = 5691
Single channel seismic reflection	Quantity: track kilometres = 2422
Gravity measurements	Quantity: track kilometres = 7120.94 Description: ng
Magnetic measurements	Quantity: track kilometres = 7120.94 Description: ng