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Observations of the aerosol particle number concentration in the marine boundary layer over the South-Eastern Baltic Sea

100%

Bycenkiene S., Ulevicius V., Prokopciuk N., Jasineviciene D.

Oceanologia

|

2013

|

tom 55

|

nr 3

2

Dependence of the surf zone aerosol on wind direction and wind speed at a coastal site on the Baltic Sea

100%

Zielinski T.

Oceanologia

|

2003

|

tom 45

|

nr 3

Since 1992 lidar-based measurements have been carried out under various meteorological conditions and at various times of the year. The aerosol optical properties were determined in the marine boundary layer as a function of altitude using such factors as wind direction, duration and velocity and aerosol size distribution and concentration. It was confirmed that in all cases, the total aerosol concentration, size distribution and aerosol extinction increase with wind speed but decrease with altitude. In the range of wind velocities from 1 to 15 m s−1 the mean aerosol optical thickness of the atmosphere (VIS) obtained from the lidar varied from 0.1 to 0.38 for offshore winds and from 0.01 to about 0.1 for onshore winds, while the ˚Angstr¨om parameter for VIS oscillated around 0.65 for onshore winds and around 1 for offshore winds. Both parameters depended strongly on the history of the air mass above the Baltic Sea. Such aerosol optical thicknesses are in agreement with those obtained by other researchers in the Baltic Sea area.

3

Observations of new particle formation events in the South-Eastern Baltic Sea

84%

Plauskaite K., Ulevicius V., Spirkauskaite N., Bycenkiene S., Zielinski T., Petelski T., Ponczkowska A.

Oceanologia

|

2010

|

tom 52

|

nr 1

53-75

New particle formation and growth were observed at a coastal site (Preila station, Lithuania) during 1997 and 2000–2002. The total amount of data analysed covers 291 one-day periods, 45 (15%) of which were long-term, new particle formation days. Short-term nucleation events (from a few minutes to one hour) and long-term events (from one to eight hours) were identified. The mean particle growth rate, condensation sink and condensable vapour source rate during nucleation events were 3.9 nm h−1, 1.45 × 10−3 cm−3 s−1 and 7.5 × 104 cm−3 s−1 respectively. The average formation rate J10 was 0.4 cm−3 s−1. The nucleation events were accompanied mainly by air masses transported from the north (43%) and north-west (19%). Meteorological parameters and trace gas (O3, SO2, NO2) concentrations were also analysed. It was found that nucleation events are related to high levels of solar radiation.

4

Sea-birds from coastal and non-coastal, archaeological and natural Pleistocene deposits or not all unexpected deposition is of human origin

67%

Stewart J. R.

Acta Zoologica Cracoviensia

|

2002

|

tom 45

|

nr Spec.issue

5

Bird remains of medieval and post-medieval coastal sites at the Southern Baltic Sea, Poland

59%

Makowiecki D., Gotfredsen A. B.

Acta Zoologica Cracoviensia

|

2002

|

tom 45

|

nr Spec.issue

Ograniczanie wyników

3 Oceanologia

2 Acta Zoologica Cracoviensia

2 Bycenkiene S.

2 Ulevicius V.

2 Zielinski T.

1 Gotfredsen A. B.

1 Jasineviciene D.

1 Makowiecki D.

1 Petelski T.

1 Plauskaite K.

1 Ponczkowska A.

1 Prokopciuk N.

1 Spirkauskaite N.

1 Stewart J. R.

1 2013

1 2010

1 2003

2 2002

Observations of the aerosol particle number concentration in the marine boundary layer over the South-Eastern Baltic Sea

Dependence of the surf zone aerosol on wind direction and wind speed at a coastal site on the Baltic Sea

Observations of new particle formation events in the South-Eastern Baltic Sea

Sea-birds from coastal and non-coastal, archaeological and natural Pleistocene deposits or not all unexpected deposition is of human origin

Bird remains of medieval and post-medieval coastal sites at the Southern Baltic Sea, Poland