Table 10.1
Average number of days from 1991 to 2000 (with strongest wind among four times observation in a day, parenthetic numbers are the average wind
speed)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
N
1.2 (7.1)
0.6 (6.3)
1.0 (6.3) 0.4 (8.5)
0.6 (8.0)
0.7 (6.3)
0.3 (8.3)
1.0 (6.3)
2.2 (6.2) 2.4 (8.5) 3.0 (6.6) 3.3 (6.8)
NNE
0.3 (8.0)
0.4 (7.5)
0.1 (8.0) 0.2 (7.5)
0.4 (6.8)
0.2 (6.0)
0.1 (12.0) 0.7 (9.0)
0.9 (8.7) 1.1 (7.3) 1.2 (7.4) 1.3 (7.5)
NE
2.2 (9.2)
3.0 (9.1)
1.9 (7.5) 1.7 (7.8)
1.6 (11.3) 0.3 (8.3)
0.3 (11.7) 1.1 (10.5) 2.2 (9.8) 3.6 (9.5) 3.2 (8.3) 3.2 (8.9)
ENE
7.4 (10.0) 8.4 (8.6)
8.2 (8.4) 4.7 (8.9)
3.0 (9.6)
0.8 (9.3)
0.5 (7.0)
0.4 (10.0)
3 (8.5) 5.1 (8.3) 5.5 (8.5) 6.1 (8.7)
E
6.0 (7.9)
7.5 (7.7) 10.7 (8.6) 9.5 (7.4)
4.3 (8.6)
1.3 (8.9)
1.7 (8.2)
2.6 (7.7)
4.4 (8.0) 5.1 (7.7) 5.1 (7.5) 5.6 (7.7)
ESE
2.6 (7.3)
1.3 (6.2)
1.7 (6.4) 1.8 (5.8)
1.4 (7.4)
0.5 (9.4)
0.7 (8.1)
1.1 (8.4)
2.9 (9.7) 1.3 (7.2) 2.1 (7.5) 1.5 (6.3)
SE
1.6 (6.2)
1.5 (6.9)
2.9 (6.9) 3.5 (6.7)
6.5 (7.8)
6.0 (8.0)
4.3 (8.2)
5.5 (8.1)
4.5 (6.6) 3.2 (7.5) 2.1 (6.9) 1.7 (6.2)
SSE
0.4 (6.0)
0.5 (9.4)
1.7 (8.9) 3.3 (8.0)
5.4 (8.7)
7.1 (9.4)
8.6 (8.8)
6.5 (8.0)
2.3 (7.3) 2.0 (7.7) 0.2 (7.0) 0.2 (6.5)
S
0.3 (6.3)
0.3 (7.0)
0.4 (5.5) 2.3 (7.3)
4.1 (8.4)
6.0 (9.2)
5.3 (8.6)
3.1 (8.0)
1.5 (5.9) 0.4 (5.5) 0.2 (8.0) 0.6 (6.2)
SSW
0.3 (7.0)
0.1 (6.0) 0.9 (11.3) 0.9 (9.0)
3.7 (8.6)
4.4 (9.0)
2.4 (7.8)
0.5 (8.2) 0.3 (5.7) 0.5 (6.6)
SW
0.1 (8.0)
0.3 (8.7)
0.9 (8.7)
1.8 (9.9)
1.3 (7.0)
0.2 (8.5) 0.1 (8.0)
WSW
0.1 (5.0)
0.3 (8.3)
0.7 (9.4)
0.1 (6.0) 0.1 (7.0)
W
0.1 (4.0)
0.4 (8.3)
0.4 (7.8)
0.5 (6.2)
0.6 (7.7)
0.2 (6.0)
0.1 (6.0)
WNW
0.2 (15.0) 0.1 (28.0) 0.1 (9.0)
0.3 (5.0)
0.1 (5.0)
0.1 (4.0) 0.1 (7.0)
NW
1.7 (7.4)
1.1 (7.0)
1.1 (6.6) 0.9 (7.6)
0.3 (7.7)
1.2 (8.5)
1.4 (8.1)
2.1 (6.8)
2.2 (7.2) 1.2 (7.3) 2.0 (7.3) 1.1 (6.8)
NNW 7.0 (9.8)
3.6 (7.5)
1.2 (6.6) 0.7 (6.6)
1.6 (8.7)
0.7 (7.6)
0.7 (9.3)
1.5 (7.6)
3.0 (7.4) 5.0 (7.6) 4.7 (8.1) 6.2 (6.9)
10 Mapping Coastal Erosion Risk in the Southern Red River Delta, Vietnam
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Average number of days from 1991 to 2000 (with strongest wind among four times observation in a day, parenthetic numbers are the average wind
speed)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
N
1.2 (7.1)
0.6 (6.3)
1.0 (6.3) 0.4 (8.5)
0.6 (8.0)
0.7 (6.3)
0.3 (8.3)
1.0 (6.3)
2.2 (6.2) 2.4 (8.5) 3.0 (6.6) 3.3 (6.8)
NNE
0.3 (8.0)
0.4 (7.5)
0.1 (8.0) 0.2 (7.5)
0.4 (6.8)
0.2 (6.0)
0.1 (12.0) 0.7 (9.0)
0.9 (8.7) 1.1 (7.3) 1.2 (7.4) 1.3 (7.5)
NE
2.2 (9.2)
3.0 (9.1)
1.9 (7.5) 1.7 (7.8)
1.6 (11.3) 0.3 (8.3)
0.3 (11.7) 1.1 (10.5) 2.2 (9.8) 3.6 (9.5) 3.2 (8.3) 3.2 (8.9)
ENE
7.4 (10.0) 8.4 (8.6)
8.2 (8.4) 4.7 (8.9)
3.0 (9.6)
0.8 (9.3)
0.5 (7.0)
0.4 (10.0)
3 (8.5) 5.1 (8.3) 5.5 (8.5) 6.1 (8.7)
E
6.0 (7.9)
7.5 (7.7) 10.7 (8.6) 9.5 (7.4)
4.3 (8.6)
1.3 (8.9)
1.7 (8.2)
2.6 (7.7)
4.4 (8.0) 5.1 (7.7) 5.1 (7.5) 5.6 (7.7)
ESE
2.6 (7.3)
1.3 (6.2)
1.7 (6.4) 1.8 (5.8)
1.4 (7.4)
0.5 (9.4)
0.7 (8.1)
1.1 (8.4)
2.9 (9.7) 1.3 (7.2) 2.1 (7.5) 1.5 (6.3)
SE
1.6 (6.2)
1.5 (6.9)
2.9 (6.9) 3.5 (6.7)
6.5 (7.8)
6.0 (8.0)
4.3 (8.2)
5.5 (8.1)
4.5 (6.6) 3.2 (7.5) 2.1 (6.9) 1.7 (6.2)
SSE
0.4 (6.0)
0.5 (9.4)
1.7 (8.9) 3.3 (8.0)
5.4 (8.7)
7.1 (9.4)
8.6 (8.8)
6.5 (8.0)
2.3 (7.3) 2.0 (7.7) 0.2 (7.0) 0.2 (6.5)
S
0.3 (6.3)
0.3 (7.0)
0.4 (5.5) 2.3 (7.3)
4.1 (8.4)
6.0 (9.2)
5.3 (8.6)
3.1 (8.0)
1.5 (5.9) 0.4 (5.5) 0.2 (8.0) 0.6 (6.2)
SSW
0.3 (7.0)
0.1 (6.0) 0.9 (11.3) 0.9 (9.0)
3.7 (8.6)
4.4 (9.0)
2.4 (7.8)
0.5 (8.2) 0.3 (5.7) 0.5 (6.6)
SW
0.1 (8.0)
0.3 (8.7)
0.9 (8.7)
1.8 (9.9)
1.3 (7.0)
0.2 (8.5) 0.1 (8.0)
WSW
0.1 (5.0)
0.3 (8.3)
0.7 (9.4)
0.1 (6.0) 0.1 (7.0)
W
0.1 (4.0)
0.4 (8.3)
0.4 (7.8)
0.5 (6.2)
0.6 (7.7)
0.2 (6.0)
0.1 (6.0)
WNW
0.2 (15.0) 0.1 (28.0) 0.1 (9.0)
0.3 (5.0)
0.1 (5.0)
0.1 (4.0) 0.1 (7.0)
NW
1.7 (7.4)
1.1 (7.0)
1.1 (6.6) 0.9 (7.6)
0.3 (7.7)
1.2 (8.5)
1.4 (8.1)
2.1 (6.8)
2.2 (7.2) 1.2 (7.3) 2.0 (7.3) 1.1 (6.8)
NNW 7.0 (9.8)
3.6 (7.5)
1.2 (6.6) 0.7 (6.6)
1.6 (8.7)
0.7 (7.6)
0.7 (9.3)
1.5 (7.6)
3.0 (7.4) 5.0 (7.6) 4.7 (8.1) 6.2 (6.9)
10 Mapping Coastal Erosion Risk in the Southern Red River Delta, Vietnam
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