Citation:

PANGAEA.996226 (dataset in review)

Name: Particle concentration near Tvärminne station (August-October 2025)
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Baltic Sea; Downwelling; particles; Tvärminne

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Abstract:

This dataset contains in situ measurements of particle size distribution and particle concentration (using LISST-200X Sequoia Scientific; 15min sampling rate) at approximately 1.4m above the seafloor (water depth of approximately 30m, 59.855556°N,11423.259444°E) between 6th August- 15th October 2025. The primary purpose of this dataset is to study the downwelling events on particle transport and carbon cycle.

Keyword(s):

Baltic Sea; Downwelling; particles; Tvärminne

Related to:

Poizat, Marine; et al. (submitted): Intensifying heat and particle transport by downwelling events during the past three decades in the coastal northern Baltic Sea.

Funding:

Research Council of Finland, grant/award no. 354273 : PHYTOTRANS

Coverage:

Latitude: 59.855556 * Longitude: 23.259444

Date/Time Start: 2025-08-05T08:42:59 * Date/Time End: 2025-10-15T07:32:59

Minimum DEPTH, water: -0.27 m * Maximum DEPTH, water: 28.59 m

Event(s):

Tv_monitor_2025 * Latitude: 59.855556 * Longitude: 23.259444 * Location: Tvärminne, Finnland * Method/Device: Multiple investigations (MULT)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DATE/TIME	Date/Time		Poizat, Marine		Geocode
2	Date/Time local	Date/Time local		Poizat, Marine
3	DEPTH, water	Depth water	m	Poizat, Marine		Geocode
4	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	1-1.48µm
5	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	1.48-1.74µm
6	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	1.74-2.05µm
7	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	2.05-2.42µm
8	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	2.42-2.86µm
9	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	2.86-3.38µm
10	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	3.38-3.98µm
11	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	3.98-4.70µm
12	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	4.70-5.55µm
13	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	5.55-6.55µm
14	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	6.55-7.72µm
15	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	7.72-9.12µm
16	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	9.12-10.8µm
17	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	10.8-12.7µm
18	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	12.7-15.0µm
19	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	15.0-17.7µm
20	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	17.7-20.9µm
21	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	20.9-24.6µm
22	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	24.6-29.1µm
23	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	29.1-34.3µm
24	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	34.3-40.5µm
25	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	40.5-47.7µm
26	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	47.7-56.3µm
27	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	56.3-66.5µm
28	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	66.5-78.4µm
29	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	78.4-92.6µm
30	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	92.6-109µm
31	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	109-129µm
32	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	129-152µm
33	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	152-180µm
34	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	180-212µm
35	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	212-250µm
36	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	250-297µm
37	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	297-354µm
38	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	297-354µm
39	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	354-420µm
40	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	420-500µm
41	Particles, volume concentration	Part vol conc	µl/l	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X	Total
42	Attenuation, optical beam transmission	Attenuation	1/m	Poizat, Marine	Particle size analyzer, Sequoia Scientific, LISST-200X

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

817400 data points

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