Citation:

PANGAEA.835331

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Abstract:

A Laser In-Situ Scattering Transmissometer (LISST) was used to collect vertical distribution data of particles from 2.5 to 500 µm in size. The LISST uses a multi-ring detector to measure scattering light of particles from a laser diode. Particles are classified into 32 log-spaced bins and the concentration of each bin is calculated as micro-liters per liter (µl/l). The instrument is rated to a depth of 300 m, and also records temperature and pressure. The sample interval was set to record every second. The LISST was attached to the LOPC frame to conduct casts and allow for particle-size comparisons between the two instruments. The LOPC is rated to a depth of 2000 m, thus a short deployment to a depth of 300 m was first conducted with both instruments. The instruments were then returned to the deck and the LISST removed via a quick release bracket so deep LOPC casts could be continued at a station. Raw LISST size-spectrum data is presented as concentrations for each of the 32 size bins for every second of the cast.

Project(s):

Basin Scale Analysis, Synthesis and Integration (EURO-BASIN)

Funding:

Seventh Framework Programme (FP7), grant/award no. 264933 : Basin Scale Analysis, Synthesis and Integration

Coverage:

Median Latitude: 59.634600 * Median Longitude: -35.225956 * South-bound Latitude: 53.358000 * West-bound Longitude: -55.979000 * North-bound Latitude: 62.857000 * East-bound Longitude: -10.863000

Date/Time Start: 2013-03-25T18:28:00 * Date/Time End: 2013-04-14T02:51:00

Minimum Elevation: -3810.9 m * Maximum Elevation: -750.0 m

Event(s):

MSM26_126-10 * Latitude: 61.448000 * Longitude: -10.863000 * Date/Time: 2013-03-25T18:28:00 * Elevation: -1225.0 m * Location: North Atlantic Ocean * Campaign: * Basis: * Method/Device: (LOPC-CTD)

MSM26_127-13 * Latitude: 62.821000 * Longitude: -21.362000 * Date/Time: 2013-03-28T08:24:00 * Elevation: -1149.0 m * Location: North Atlantic Ocean * Campaign: * Basis: * Method/Device: (LOPC-CTD)

MSM26_127-22 * Latitude: 62.857000 * Longitude: -21.441000 * Date/Time: 2013-03-28T23:27:00 * Elevation: -1136.0 m * Location: North Atlantic Ocean * Campaign: * Basis: * Method/Device: (LOPC-CTD) * Comment: rope length max. 300m /ARW

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Time of day	Time of day		Walsh, Harvey Joseph		of sampling
3	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 2.72 µm, original unit = µl/l
4	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 3.2 µm, original unit = µl/l
5	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 3.78 µm, original unit = µl/l
6	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 4.46 µm, original unit = µl/l
7	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 5.27 µm, original unit = µl/l
8	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 6.21 µm, original unit = µl/l
9	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 7.33 µm, original unit = µl/l
10	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 8.65 µm, original unit = µl/l
11	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 10.2 µm, original unit = µl/l
12	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 12.1 µm, original unit = µl/l
13	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 14.2 µm, original unit = µl/l
14	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 16.8 µm, original unit = µl/l
15	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 19.8 µm, original unit = µl/l
16	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 23.4 µm, original unit = µl/l
17	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 27.6 µm, original unit = µl/l
18	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 32.5 µm, original unit = µl/l
19	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 38.4 µm, original unit = µl/l
20	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 45.3 µm, original unit = µl/l
21	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 53.5 µm, original unit = µl/l
22	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 63.1 µm, original unit = µl/l
23	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 74.5 µm, original unit = µl/l
24	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 87.9 µm, original unit = µl/l
25	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 104 µm, original unit = µl/l
26	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 122 µm, original unit = µl/l
27	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 144 µm, original unit = µl/l
28	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 170 µm, original unit = µl/l
29	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 201 µm, original unit = µl/l
30	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 237 µm, original unit = µl/l
31	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 280 µm, original unit = µl/l
32	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 331 µm, original unit = µl/l
33	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 390 µm, original unit = µl/l
34	Particle volume	Part vol	mg/kg	Walsh, Harvey Joseph	Laser In-Situ Scattering Transmissometer, LISST-100X, SEQUOIA Scientific, Inc.	median particle size = 460 µm, original unit = µl/l
35	Pressure, stress	P	MPa	Walsh, Harvey Joseph
36	Temperature, technical	T tech	°C	Walsh, Harvey Joseph
37	Time of day	Time of day		Walsh, Harvey Joseph
38	Day of the year	DOY	day	Walsh, Harvey Joseph

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

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569097 data points

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