Bottom Sediment Grab Samplers Supplied Name : Rock grabber
Supplied Description :
Rock samples were collected using a Van Veen style grab on a free vehicle lander.
Instrument Type
Acronym : BSGS
Generic Description :
These samplers are designed to collect an accurate representative sample of the sediment bottom. The bite of the sampler should be deep enough so all depths are sampled equally. The closing mechanism is required to completely close and hold the sample as well as prevent wash-out during retrieval. Likewise, during descent the sampler should be designed to minimize disturbance of the topmost sediment by the pressure wave as it is lowered to the bottom.
CTD - profiler Supplied Name :
Supplied Description :
Instrument Type
Generic Description :
The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.
This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934 .
Flow Cytometer Supplied Name : Attune Acoustic Focusing Flow Cytometer, Applied Biosystems, Foster City, CA
Supplied Description :
Instrument Type
Generic Description :
Flow cytometers (FC or FCM) are automated instruments that quantitate properties of single cells, one cell at a time. They can measure cell size, cell granularity, the amounts of cell components such as total DNA, newly synthesized DNA, gene expression as the amount messenger RNA for a particular gene, amounts of specific surface receptors, amounts of intracellular proteins, or transient signalling events in living cells.http://www.bio.umass.edu/micro/immunology/facs542/facswhat.htm )
HADAL-Lander Supplied Name : Hadal Lander
Supplied Description :
Instrument Type
Generic Description :
The HADAL-Lander is a free-falling baited lander composed of two major components; the scientific payload and delivery system.
HADAL-Lander A
HADAL-Lander-B
Leggo Lander Supplied Name :
Supplied Description :
Instrument Type
Generic Description :
The "Leggo Lander" is a lander system that primarily relies on syntactic foam for buoyancy and uses iridium GPS, radio signal, strobe light and flag for surface recovery, and acoustics for underwater monitoring and instrument control. The lander has a timer with 5 control settings for various operations. It routinely measures pressure (depth) throughout its dive and temperature on the seafloor. The lander payloads include a pressure-retaining seawater sampler plus 2 liter Niskin bottle, and a camera/battery/light system that also includes a 30 liter Niskin bottle and a sea cucumber trap. With the camera payload it travels down or up the water column at about 39 meters per minute (~ 4.5 hours for a descent to the Challenger Deep at ~10,920 m).
(Description obtained from the R/V Falkor FK141215 post-cruise report (PDF))
Niskin bottle Supplied Description :
Instrument Type
Generic Description :
A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
BCO-DMO Blog
©2024 Biological and Chemical Oceanography Data Management Office.
