Dependent variables | Max. SL (HSL, m) | SL length (TSL H > 0.8 m, h) | SL length (TSL H > 1.0 m, h) | SL length (TSL H > 1.2 m, h) | Max. run-up (HsLr, m) | Dune toe retreat (DPfr, m) |
---|---|---|---|---|---|---|
Independent variables | ||||||
Max. SL (HSL, m) | × | 0.40 | 0.42 | |||
SL length (TSL H > 0.8 m, h) | 0.40 | × | – | – | 0.38 | 0.17 |
SL length (TSL H > 1.0 m, h) | – | × | – | 0.51 | 0.45 | |
SL length (TSL H > 1.2 m, h) | – | – | × | 0.42 | ||
Max. wind vel. (Vw, m · s−1) | 0.18 | 0.50 | 0.49 | |||
Time V > 10 m · s−1 (Vw, h) | 0.39 | |||||
Max. run-up (HSLr, m) | 0.01 | 0.40 | 0.43 | × | ||
× | × | × | × | × | 0.49 |
No. | 1 | 2 | 3 | 4 | 5 | 6 | Mean SL [m] |
---|---|---|---|---|---|---|---|
Date | 4–6.10.2016 | 3–4.11.2016 | 27–28.11.2016 | 12–14.12.2016 | 27–28.12.2016 | 4–6.01.2017 | – |
Name | Angus | NN | NN | NN | Barbara | Axel | – |
Wind velocity (m · s−1) | 13–17 | 11–14 | 12–15 | 11–14 | 13–18 | 13–18 | – |
Wind direction | NE–NNE | W–NNW | WNW–NNW | W–WNW | NW–N | NW–NE | – |
Świnoujście (SW) | 1.13 | 0.48 | 0.93 | 0.66 | 0.90 | 1.42 | 0.92 |
Kołobrzeg (KG) | 0.63 | 0.53 | 0.72 | 0.64 | 1.12 | 1.50 | 0.86 |
Darłowo (DA) | 0.42 | 0.44 | 0.56 | 0.55 | 0.89 | 1.65 | 0.75 |
Ustka (US) | 0.40 | 0.46 | 0.56 | 0.53 | 0.88 | 1.45 | 0.71 |
Łeba (LE) | 0.42 | 0.40 | 0.57 | 0.47 | 0.74 | 1.23 | 0.64 |
Wład. (WA) | 0.54 | 0.32 | 1.01 | 0.46 | 0.92 | 1.36 | 0.77 |
Hel (HE) | 0.36 | 0.25 | 0.71 | 0.44 | 0.84 | 1.05 | 0.61 |
Gdansk (GD) | 0.40 | 0.18 | 0.82 | 0.35 | 0.75 | 1.18 | 0.61 |
Mean SL (m) | 0.54 | 0.38 | 0.74 | 0.51 | 0.88 | 1.36 | 0.74 |
No. | Item characteristics | Weight in ca. kg | No. of travelled km | Azimuth, from–to | Shift (sandbar/town, coast kilometrage start-end) |
---|---|---|---|---|---|
A | Wooden platform 5 m × 5 m | 20 | 8 | E–WNW | Świnoujscie to Ahlbeck, from 426 toward the west |
B | Wooden board 6 m × 2 m | 8–10 | 11 | E–WNW | Międzyzdroje to Świnoujscie 411–422 |
C | Metal garbage can 1 m × 0.5 m | 5 | 12 | WSW–NNE | Rega, 350–338 |
D | Plastic parts from coast protection 0.5 m × 0.5 m | 1–2 | 16 | W–NE | Jamno to Bukowo, 300–284 |
E | Metal garbage can 1 m × 0.5 m | 3–4 | 15 | W–NE | Kopań, 270–258 |
F1 | Wooden and metal construction/military aim 8 m × 5 m | 5–8 | 9 | W–ENE | Wicko, 242–233 |
F2 | Wooden and metal construction/military aim 5 m × 5 m | 3–5 | 29 | W–NE | Wicko to Gardno, 242–213 |
F3 | Wooden and metal construction/military aim 5 m × 5 m | 4–6 | 39 | W–NNE | Wicko to Łebsko, 242–203 |
F4 | Wooden and metal construction/military aim 5 m × 5 m | 4–6 | 46 | W–NNE | Wicko to Łebsko, 242–196 |
G | Plastic parts from coast protection 0.5 m × 0.5 m | 1–2 | 10 | NW–SE | Karwia, 140–131 |
H | Wooden and plastic parts from harbour 2 m × 3 m | 3–6 | 45 | W–E | Vistula, 75–30 |
I | Floating trunk wood from Vistula river mouth, several, largest 12 m × 1 m | 30–50 | 12–17 | W–E | Vistula, 49–37 (32) |
Harbour, gauge station | Świnoujście (SW) | Kołobrzeg (KG) | Darłowo (DA) | Ustka (US) | Łeba (LE) | Władysławowo (WA) | Gdańsk (GD) |
---|---|---|---|---|---|---|---|
Location of harbour | 53°55’N 14°16′E | 54°11’N 15°33′E | 54°26’N 16°22′E | 54°45’N 16°51’E | 54°46’N 17°33’E | 54°47’N 18°25’E | 54°21’N 18°39’E |
Wind V max [m · s−1] | 14–15 | 14–16 | 15–18 | 13–15 | 14–15 | 12–16 | 12–14 |
Wind duration V > 10 [m · s−1] (t, h) | 62 | 65 | 57 | 54 | 55 | 50 | 42 |
Storm duration H > 0.8 m (t, h) | 39 | 36 | 30 | 33 | 31 | 34 | 27 |
Storm duration H > 1 m (t, h) | 28 | 26 | 23 | 20 | 14 | 19 | 11 |
Storm duration H > 1.2 m (t, h) | 18 | 15 | 12 | 9 | 3 | 7 | 0 |
Max. SL, 4 Jan (h) | 10 | 10 | 11 | 11 | 14 | 14 | 17 |
Max. sea level [m AMSL] | 1.42 | 1.50 | 1.65 | 1.45 | 1.23 | 1.36 | 1.18 |
No. | Investigated sandbar name/part | Length [km] | Measurement date, before, after surge (month) | Average dune toe retreat (m) | SL > 1 m (t, h) | Max. SL in gauge station, SL [m] | Max. run-up on the shore, SLR [m] | Harbour (gauge station), location | ||
---|---|---|---|---|---|---|---|---|---|---|
Before, in 2016 | After, in 2017 | Mean | Median | |||||||
1 | Świna Gate | 16 | 9, 11, 12 | 1, 4 | 5.4 | 5.7 | 28 | 1.42 | 3.9 | Świnoujście (SW) 53°55N 14°16E |
2 | Dziwnów | 11 | 9 | 1, 6 | 7.3 | 7.5 | 28 | 1.42 | 3.7 | |
3 | Liwia Lake to Rega river | 15 | 9 | 2, 4 | 4.4 | 4.1 | 28 | 1.42 | 3.8 | |
4 | Resko Lake to Parsęta river | 14 | 9, 11 | 2, 5 | 6.0 | 5.9 | 26 | 1.50 | 3.7 | Kołobrzeg (KG) 54°11N 15°33E |
5 | Jamno Lake | 11 | 9 | 2, 9 | 6.2 | 5.2 | 26 | 1.50 | 3.7 | |
6 | Bukowo Lake | 12 | 9 | 1, 9 | 9.4 | 9.8 | 23 | 1.65 | 3.9 | Darłowo (DA) 54°26N 16°22E |
7 | Kopań Lake | 10 | 9 | 1, 9 | 8.4 | 9.0 | 23 | 1.65 | 4.1 | |
8 | Wicko Lake | 15 | 6 | 3, 6 | 5.3 | 4.0 | 20 | 1.45 | 3.8 | Ustka (US) |
9 | Gardno Lake | 10 | 9 | 4, 9 | 3.6 | 3.0 | 20 | 1.45 | 3.6 | 54°45N 16°51E |
10 | Lebsko Lake 1/west/Czołpińska Dune | 10 | 9, 11 | 4, 9 | 5.4 | 3.5 | 14 | 1.23 | 3.5 | Łeba (LE) 54°46N 17°33E |
11 | Lebsko Lake 2/east/Łącka Dune | 16 | 9, 11 | 4, 9 | 5.0 | 2.7 | 14 | 1.23 | 3.5 | |
12 | Sarbska Sandbar | 9 | 9, 11 | 4, 9 | 4.5 | 3.1 | 14 | 1.23 | 3.4 | |
13 | Kaszubska 1/west/Stilo Dunes | 7 | 9, 11 | 4, 9 | 7.9 | 8.0 | 14 | 1.23 | 3.4 | |
14 | Kaszubska 2/middle/Lubiatowska Dune | 6 | 9 | 5, 6 | 5.5 | 4.2 | 19 | 1.36 | 3.4 | Władysławowo (WA) 54°47N 18°25E |
15 | Kaszubska 3/east/Biała Góra Dune | 9 | 9, 11 | 5, 9 | 3.6 | 1.8 | 19 | 1.36 | 3.5 | |
16 | Karwia | 12 | 9, 11 | 6 | 4.9 | 19 | 1.36 | 3.6 | ||
17 | Hel Spit | 35 | 9, 11 | 4, 6 | 6.8 | 8.0 | 19 | 1.36 | 3.8 | |
18 | Vistula Sandbar 1/west/channel mouth | 10 | 11 | 2, 6 | 2.3 | 2.1 | 11 | 1.18 | 3.7 | Gdańsk (GD) 54°21N 18°39E |
19 | Vistula Sandbar 2/middle part | 19 | 11 | 4, 6 | 4.2 | 4.1 | 11 | 1.18 | 3.7 | |
20 | Vistula Sandbar 3/east/Camel Hump Dune | 24 | 11 | 6 | 4.4 | 4.5 | 19 | 1.36 | 3.9 | Władysławowo (WA) 54°47N 18°25E |