Table 2 Annual changes in the sand resultant drift direction at each observation point.
Month | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Xie rong | RDD(°) | 212.84 | 236.66 | 319.84 | 198.54 | 280.12 | 200.63 | 324.84 | 286.74 | 308.83 | 200.06 | 209.14 | 216.89 |
Direction | SSW | WSW | NW | SSW | W | SSW | NW | WNW | NW | SSW | SSW | SW | |
RA(°) | 205.44 | 220.12 | 301.26 | 198.06 | 261.17 | 196.19 | 329.75 | 290.66 | 318.56 | 197.71 | 205.85 | 212.25 | |
Direction | SSW | SW | WNW | SSW | W | SSW | NNW | WNW | NW | SSW | SSW | SSW | |
Zhang da | RDD(°) | 287.01 | 89.59 | 94.01 | 95.60 | 87.33 | 139.53 | 32.11 | 283.42 | 160.62 | 319.30 | 82.27 | 81.20 |
Direction | WNW | E | E | E | E | SE | NNE | WNW | SSE | NW | E | E | |
RA(°) | 105.80 | 89.64 | 94.36 | 95.45 | 95.79 | 131.27 | 56.12 | 103.34 | 160.65 | 77.30 | 86.91 | 80.83 | |
Direction | ESE | E | E | E | E | SE | NE | ESE | SSE | ENE | E | E | |
Deji | RDD(°) | 122.97 | 179.06 | 126.56 | 233.89 | 262.36 | 256.18 | 265.94 | 260.52 | 257.95 | 270.97 | 105.83 | 96.88 |
Direction | ESE | S | SE | SW | W | WSW | W | W | WSW | W | ESE | E | |
RA(°) | 127.58 | 179.33 | 125.75 | 230.40 | 262.16 | 255.62 | 266.37 | 259.60 | 257.78 | 271.11 | 105.82 | 95.97 | |
Direction | SE | S | SE | SW | W | WSW | W | W | WSW | W | ESE | E | |
Jia bang | RDD(°) | 325.18 | 300.46 | 295.07 | 296.48 | 297.47 | 316.32 | 332.73 | 328.61 | 300.70 | 329.96 | 310.48 | 325.78 |
Direction | NW | WNW | WNW | WNW | WNW | NW | NNW | NNW | WNW | NNW | NW | NW | |
RA(°) | 316.56 | 296.99 | 290.53 | 294.47 | 293.32 | 316.61 | 336.21 | 334.26 | 277.67 | 329.08 | 296.35 | 323.16 | |
Direction | NW | WNW | WNW | WNW | WNW | NW | NNW | NNW | W | NNW | WNW | NW | |
