X隠"o員v"8鵜pj"v pj"vc"vj医{"t茨pi"eƒe"p<o"v瑛"3;98"8院p"1989 mjw"x詠e"mj¿e"u»pi" eqpi"p {"d鵜"z„k"n荏"t医v"pjk隠w"i亥p"pj逢"ejw{吋p"j鰯p"n”pi"u»pi"ucpi"o瓜v"d‒p"e栄c"vjành rj嘘 Sa Aéc. V衣k"mjw"x詠e"8雨pj"eqpi"8«"j·pj"vj pj"pjk隠w"ej厩"xĩi n荏"e„"ejk隠w"u¤w"vào trong phía Sa Afie"mjq違pi"v瑛"57o"Ỵ 40ọ"n o"ejq"oƒk"d運"u»pi"f嘘e"8泳pi"i¤{"jk羽p" v逢嬰pi"u衣v"n荏"d運"u»pi"Vk隠p"mjw"x詠e"Uc Aée"vtqpi"pjk隠w"p<ọ"mfiq"f k"vtqpi"rj衣o"xk" i亥p"30km. V·pj"j·pj"dk院p"8瓜pi"vtqpi"ikck"8q衣p"3;76 8院p"1989, các x鵜"vt xĩi n荏 8«" f鵜ej"zw»k"x噂k"v嘘e"8瓜"nhanh."8雨pj"eqpi"e pi"f鵜ej"zw»k"x噂k"v嘘e"8瓜"mjƒ"o衣pj0"Jk羽p" 8雨pj"eqpi"d運"n o"p茨o"eƒej"e穎c"m‒pj"8 q"mjq違pi"4222"o"x隠"rj c"j衣"n逢w"z«"Cp"jk羽r" - jw{羽p" Ej¤w" Vj pj." vj院" u»pi" rj c" vj逢嬰pi" n逢w" 8雨pj" eqpi" *ej違{" swc" V¤p" Mjƒpj" A»pi"- V¤p"Sw{"A»pi"- Rj逢運pi"5"- Rj逢運pi"6+"vjgq"j逢噂pi"V¤{"D逸e"- A»pi"Pco" swc"mjw"x詠e"8雨pj"eqpi"ejw{吋p"ucpi"j逢噂pi"V¤{"Pco"- A»pi"D逸e0 Quá trình xĩi n荏"và
u衣v"n荏"oƒk"d運"u»pị"eƒe"j嘘"z„k"x "vw{院p"n衣ej"u¤w"pi {"e pi"fir"uƒv"d運"n o"*rj c"UcAéc) n o"ejq"oƒk"d運"u»pi"mjw"x詠e"p {"pi {"e pi"f嘘e"8泳pi"vt‒p"o瓜v"vw{院p"f k"i亥p"10 km.
V瑛"p<o"3;:;"8院p"p<o"4224"v嘘e"8瓜"z„k"n荏"e„"rj亥p"ik違o"8k"rj c"rj逢運pi"5"pj逢pi" rj c"rj逢運pi"6"x "z«"Cp"Jk羽r"jw{羽p"Ej¤w"Vj pj"vj·"x磯p"z„k"n荏"pjk隠w."v嘘e"8瓜"v逢挨pi"8嘘k" 8隠w0
T瑛 n<o"4224"8院p"p<o"422;"mjk"e„"8壱p khĩa r衣ej"Pj "Vj逢挨pi xây d詠pi"p<o" 2005 và m瓜v" 8q衣n kè b茨ng bê tơng thì khu v詠c t瑛 8壱p khĩa r衣ej" pj " Vj逢挨pi" kho違ng 1km (thu瓜e"rj逢運pi"5"x "rj逢運ng 4), khơng s衣t l荏 n英c."8q衣p"8亥u xã An Hi羽p ti院p giáp v噂k"rj逢運pi"6"e pi"u衣t l荏 v"x·"8q衣p"p {"e pi"8«"8逢嬰e"n o"mfl"8ƒ"p<o"422:." pj逢pi"8q衣n cu嘘i phía An Hi羽p thì l衣i xĩi l荏 m衣nh. Vw{"pjk‒p"8¤{"ej雨 là phân tích 8鵜nh tính ch雨 d詠a vào quan sát tr詠c ti院p trên hình 違nh và quan sát b茨ng m逸v"vj逢運ng.
Hình 15: Xお"vt "z¤{"fばpi"mfl"p<o"4227- 2008
A吋 phân tích chính xác s詠 xĩi l荏 khu v詠e"p {"pj逢"vj院 nào t嘘e"8瓜 xĩi l荏 ra sao vi羽c s穎 d映ng ph亥n m隠m m荏 r瓜ng DSAS c栄a ArcGIS s胤v pj"vqƒp"8鵜pj"n逢嬰ng s詠 xĩi l荏 khu v詠c nàỵ
704"U穎"f映pi"FUCU"8吋"v pj"vqƒp
Vi羽c tính tốn b茨pi"FUCU"8逢嬰c chia ra thành các transect tr違i dài khu v詠c nghiên c泳w"8吋 phân tích
Hình 16: Z¤{"fばpi"eƒe"vtcpugev"vＴk"mjw"xばe"pijk‒p"eとw"vな"p<o"3;98"8ｘp"422;
Hình 16 vt·pj"d {"eƒe"8逢運ng b運 t瑛 p<o"3;98"8院p"p<o"422;"x "eƒe"vtcpugev" s穎 d映ng trong DSAS. Khu v詠c tính tốn dài 8km cĩ t鰻ng c瓜ng 40 transect. Các vtcpugev"8逢嬰c xây d詠ng vuơng gĩc v噂k"8逢運ng b運 x "8逢嬰e"8ƒnh s嘘 theo th泳 t詠 v<pi" d亥n t瑛 trái qua ph違i t泳c là t瑛rj c"vj逢嬰ng ngu欝n v隠 phía h衣n逢w"*v瑛rj逢運ng 3 8院n xã An Hi羽p). Kho違ng cách m厩i transect là 202o"x "8瓜 dài m厩i transect là 1500m.
D詠dƒq"8院p"p<o"4242"mjq違ng cách xĩi l荏 s胤 ti院p t映c l医n sâu vào b運. Nh英ng khu v詠c g亥p"8壱p khĩa r衣ej"Pj "Vj逢挨pi"fq"n o"mfl"nên mj»pi"vjc{"8鰻i cịn t瑛 v鵜 trí transect s嘘 3:"8院n transect 40 theo tính tốn h欝i quy s胤 cĩ t嘘e"8瓜 xĩi l荏 theo cơng th泳c g亥p"8¿pi"e栄a hàm b壱c nh医t.
y = ax + b (1)
Vtqpi"8„<""{"n "mjq違ng cách xĩi l荏 tính theo t瑛ng transect x là bi院n s嘘8挨p"x鵜n "p<o
a, b là h羽 s嘘rj逢挨pi"vt·pj"d壱c nh医t R2 là h羽 s嘘v逢挨pi"swcp0
Sau khi tính tốn ta cĩ b違ng k院t qu違 d詠dƒq"pj逢"ucw<
DＶpi"9: Mｘv"swＶ"vjぐpi"m‒"mjqＶpi"eƒej"uＴv"nぞ"vな"rjＺp"oｚo"FUCU"vjgq"vなpi"vtcpugev
Transect 1976 1989 1996 2002 2009 2020 R2 LRR
1 0 63.859 88.805 133.121 174.507 46.31 0.80 4.210
U»pi"Vk隠p
Transect 1976 1989 1996 2002 2009 2020 R2 LRR 3 0 250.261 255.045 296.784 308.678 33.66 0.79 3.060 4 0 235.717 260.608 304.932 309.593 42.02 0.72 3.820 5 0 334.787 339.487 354.880 374.488 24.31 0.68 2.210 6 0 241.872 280.103 325.745 398.990 50.6 0.68 4.600 7 0 244.208 254.880 289.852 302.485 35.09 0.880 3.190 8 0 200.238 217.648 232.958 276.956 24.86 0.890 2.260 9 0 235.033 275.893 297.435 317.135 45.43 0.890 4.130 10 0 226.644 333.839 377.772 401.304 82.5 0.930 7.500 11 0 213.284 330.450 346.275 366.927 78.87 0.840 7.170 12 0 280.253 338.757 355.391 375.139 50.82 0.750 4.620 13 0 397.506 407.659 428.576 448.758 25.96 0.860 2.360 14 0 355.583 449.506 489.247 524.435 75.35 0.880 6.850 15 0 413.293 457.425 479.964 501.313 48.07 0.890 4.370 16 0 451.038 456.038 485.214 505.721 33.66 0.760 3.060 17 0 441.517 480.950 516.721 536.289 44.44 0.780 4.040 18 0 478.049 495.093 551.373 586.485 49.06 0.860 4.460 19 0 511.819 549.108 615.718 671.594 68.53 0.800 6.230 20 0 450.250 520.570 594.842 621.522 92.95 0.810 8.450 21 0 459.606 562.570 671.120 682.370 124.08 0.880 11.280 22 0 510.263 607.366 728.391 742.860 129.47 0.830 11.770 23 0 524.738 607.747 747.476 771.535 139.04 0.850 12.640 24 0 487.602 642.244 802.560 827.156 190.3 0.840 17.300 25 0 546.717 729.430 947.934 974.131 237.27 0.820 21.570 26 0 487.016 732.441 920.805 1008.322 277.31 0.970 25.210 27 0 426.411 824.864 1003.207 1119.700 357.72 0.890 32.520 28 0 379.702 690.117 994.475 1026.224 354.97 0.930 32.270 29 0 378.525 621.467 980.344 1038.793 369.82 0.940 33.620 30 0 374.376 678.980 1037.236 1098.250 399.96 0.900 36.360 31 0 376.075 620.512 1099.989 1214.997 473.33 0.930 43.030 32 0 361.964 539.777 1012.912 1261.623 500.94 0.960 45.540 33 0 357.965 541.897 933.488 1290.348 503.69 0.930 45.790 34 0 302.710 425.517 843.994 1204.228 493.02 0.920 44.820 35 0 242.925 366.768 790.956 1178.251 509.96 0.940 46.360 36 0 216.315 307.862 726.522 1081.804 475.97 0.940 43.270
Transect 1976 1989 1996 2002 2009 2020 R2 LRR
37 0 190.443 251.681 612.145 974.218 428.01 0.950 38.910
38 0 132.543 194.966 471.051 854.808 385.66 0.970 35.060
39 0 135.035 163.424 321.715 555.405 224.07 0.980 20.370
40 0 81.121 113.759 225.548 498.470 215.38 0.960 19.580
Hình 17: A⇔ぜpi"dぜvjc{"8ごk"vな"p<o"3;98"8ｘp"422; theo các transects
Hình 18: Vぐe"8じ"vjc{"8ごk"8⇔ぜpi"dぜ"vな"p<o"3;98"8ｘp"422; 2009 1976 2002 1996 1989
DＶpi"10: DＶpi"ikƒ"vtお"z„k"nぞdぜ"u»pi Transect V瑛 1976-1989 *35p<ơ (m) T瑛"3;:;- 1996 *9p<ơ (m) T瑛"3;;8- 2002 *8p<ơ (m) T瑛"4224-2009 *9p<ơ (m) Trung bình 33 n<o (m) 1 63.859 24.946 44.316 41.386 5.44 2 170.294 4.795 18.204 16.977 4.81 3 250.261 4.784 41.739 11.894 7.15 4 235.717 24.891 44.324 4.661 7.44 5 334.787 4.699 15.394 19.608 7.95 6 241.872 38.231 45.642 73.245 10.53 7 244.208 10.672 34.972 12.633 6.99 8 200.238 17.410 15.310 43.998 6.68 9 235.033 40.860 21.542 19.700 7.58 10 226.644 107.195 43.933 23.532 10.86 11 213.284 117.166 15.825 20.653 9.68 12 280.253 58.503 16.635 19.748 8.88 13 397.506 10.153 20.917 20.181 9.60 14 355.583 93.923 39.741 35.188 13.11 15 413.293 44.132 22.539 21.349 11.23 16 451.038 4.999 29.177 20.507 10.80 17 441.517 39.433 35.771 19.568 12.09 18 478.049 17.044 56.280 35.112 13.40 19 511.819 37.290 66.610 55.876 15.95 20 450.250 70.320 74.272 26.680 15.22 21 459.606 102.964 108.550 11.250 17.44 22 510.263 97.102 121.026 14.469 18.84 23 524.738 83.008 139.729 24.060 19.74 24 487.602 154.642 160.316 24.596 22.46 25 546.717 182.713 218.504 26.197 27.08 26 487.016 245.424 188.364 87.516 29.10 27 426.411 398.453 178.343 116.493 34.02 28 379.702 310.415 304.358 31.749 32.20 29 378.525 242.942 358.877 58.449 33.00 30 374.376 304.603 358.256 61.015 35.18 31 376.075 244.437 479.477 115.008 40.05 32 361.964 177.813 473.135 248.711 41.91 33 357.965 183.932 391.591 356.860 42.51 34 302.710 122.807 418.477 360.234 40.51 35 242.925 123.842 424.189 387.294 40.60 36 216.315 91.547 418.660 355.282 37.56 37 190.443 61.238 360.464 362.073 33.80 38 132.543 62.423 276.086 383.757 29.99
Transect V瑛 1976-1989 *35p<ơ (m) T瑛"3;:;- 1996 *9p<ơ (m) T瑛"3;;8- 2002 *8p<ơ (m) T瑛"4224-2009 *9p<ơ (m) Trung bình 33 n<o (m) 39 135.035 28.389 158.290 233.690 18.55 40 81.121 32.638 111.789 272.922 17.13
Tình hình bi院p"8瓜pi"8逢運ng b運 t瑛 p<o"3;98"8院p"3;:;"n "35"p<o0"Theo k院t qu違 tính tốn c栄a DSAS vtqpi"x”pi"35"p<o"u詠 xĩi l荏 là r医t l噂n nguyên nhân trong th運i gian này cĩ 2 tr壱n n "n鵜ch s穎p<o3;9:"x "p<o"3;:6 hai tr壱p"n "n鵜ch s穎 này làm xĩi l荏 pj逢"mjw"x詠e"rj逢運ng 3 t瑛 vtcpugev"3"8院n transect 14 s衣t l荏 t瑛 82o"ejq"8院n 355m, trung bình 429o"pij c"n "vtwpi"d·pj"38o1p<ọ"khu v詠e"rj逢運ng 4 t瑛 transect 37"8院n transect 24 s衣t l荏 t瑛 635o"8院n 524m trung bình 468m, trung bình xĩi l荏 58o13p<ọ"mjw"x詠c xã An Hi羽p t瑛 vtcpugev"47"8院n transect 40 s衣t l荏 t瑛 :2o"8院n 546m trung bình kho違pi"535ọ"vtwpi"d·pj"46o13p<o0
DＶpi"11<"DＶpi"ikƒ"vtお"z„k"nぞ"dぜ"u»pi"vな"p<o"3;98"8ｘp"p<o"3;:; STT Khu v詠c S衣t l荏 nh臼 nh医t (m) S衣t l荏 l噂n nh医t (m) Trung bình (m) T嘘e"8瓜 s衣t l荏*o1p<ơ 1 Rj逢運ng 3 60 355 207 16 2 Rj逢運ng 4 413 468 440 36 3 An Hi羽p 80 546 313 24
Tình hình bi院p"8瓜pi"8逢運ng b運 t瑛p<o"3;:;"8院p"3;;8"n "9"p<o0"Theo k院t qu違 tính tốn c栄c"FUCU"vtqpi"x”pi"9"p<o"u詠 xĩi l荏 là r医t l噂n nguyên nhân trong th運i gian này cĩ 2 tr壱p"n "n鵜ch s穎p<o"3;;3"x "p<o"3;;6"jck"vt壱p"n "n鵜ch s穎 này làm xĩi l荏 pj逢"mjw"x詠e"rj逢運ng 3 t瑛vtcpugev"3"8院n transect 14 s衣t l荏 t瑛 4o"ejq"8院n 117m, trung bình 60o"pij c"n "vtwpi"d·pj"9o1p<ọ"mjw"x詠e"rj逢運ng 4 t瑛 vtcpugev"37"8院n transect 24 s衣t l荏 t瑛 44o"8院n 154m trung bình 99m, trung bình xĩi l荏 15o13p<ọ" khu v詠c xã An Hi羽p t瑛 vtcpugev"47"8院n transect 40 s衣t l荏 t瑛 32o"8院n 398m trung bình kho違ng 215ọ"vtwpi"d·pj"46o13p<o0
DＶpi"12<"DＶpi"ikƒ"vtお"z„k"nぞ"dぜ"u»pi"vな"p<o"3;:;"8ｘp"p<o"3;;8 STT Khu v詠c S衣t l荏 nh臼 nh医t (m) S衣t l荏 l噂n nh医t (m) Trung bình (m) T嘘e"8瓜 s衣t l荏*o1p<ơ 1 Rj逢運ng 3 4 11 60 9 2 Rj逢運ng 4 44 154 99 15 3 An Hi羽p 32 398 215 24
Tình hình bi院p"8瓜pi"8逢運ng b運 t瑛p<o"3;;8"8院p"4224"n "8"p<o0"Theo k院t qu違 tính tốn c栄a DSAS trong vịng 8"p<o"u詠 xĩi l荏 là r医t l噂n nguyên nhân trong th運i gian này cĩ 1 tr壱n d«q"p<o"3;;9"x "o瓜t tr壱n n "n鵜ch s穎p<o"4222"pj逢pi"vt壱p"n "n鵜ch s穎 này r医t l噂n. Theo các nhà th栄y l嬰i thì tr壱p"n "p {"n "vt壱p"n "n噂n nh医t trong vịng 80 p<o"8鰻 l衣k"8¤{."i¤{"pi壱p l映t lâu nh医t. Tr壱p"n "p {"f磯p"8院n làm xĩi l荏 pj逢"mjw"x詠c rj逢運ng 3 t瑛vtcpugev"3"8院n transect 14 s衣t l荏 t瑛 37o"ejq"8院n 45m, trung bình 30m pij c"n "vtwpi"d·pj"7o1p<o0"Mjw"x詠e"rj逢運ng 4 t瑛vtcpugev"37"8院n transect 24 s衣t l荏 t瑛 44o"8院n 160m trung bình 91m, trung bình xĩi l荏 37o13p<o0" Mjw"x詠c xã An Hi羽p t瑛 vtcpugev" 47" 8院n transect 40 s衣t l荏 t瑛 333o" 8院n 479m trung bình kho違ng 4;7ọ"vtwpi"d·pj"6;o13p<o0 DＶpi"13<"DＶpi"ikƒ"vtお"z„k"nぞ"dぜ"u»pi"vな"p<o"3;;8"8ｘp"p<o"4224 STT Khu v詠c S衣t l荏 nh臼 nh医t (m) S衣t l荏 l噂n nh医t (m) Trung bình (m) T嘘e"8瓜 s衣t l荏 *o1p<ơ 1 Rj逢運ng 3 15 45 30 5 2 Rj逢運ng 4 22 160 91 15 3 An Hi羽p 111 479 295 49
Fq"p逢噂c sơng Ti隠n ch違y th鰯ng vào sơng Sa Aéc qua r衣ej"Pj "Vj逢挨pi"i¤{"u衣t l荏 l噂n t衣i trung tâm thành ph嘘Uc"Afie"p‒p"p<o"3;;:"eƒe"nhà khoa h丑e"8«"8隠 xu医t xây d詠pi"8壱p khĩa r衣ej"Pj "Vj逢挨pi"fq"x壱y ta th医y s詠 xĩi l荏 8«"ejw{吋n d鵜ch v隠 phía h衣 n逢w"x " v"f亥n 荏 rj逢運pi"5"x "rj逢運pi"6"pj逢pi"Cp"Jk羽p thì xĩi l荏 l衣i nhi隠w"j挨p0
Tình hình bi院p"8瓜pi"8逢運ng b運 t瑛 p<o"4224"8院p"422;"n "9"p<o0"E pi"vjgq" k院t qu違 tính tốn c栄c"FUCU"vtqpi"x”pi"9"p<o"u詠 xĩi l荏 cĩ gi違o"8k"uq"x噂i th運i gian vt逢噂c nguyên nhân là kho違ng th運i gian này khơng cĩ tr壱p"n "n噂p"p q0"Pj逢pi"v·pj" hìnhxĩi l荏e pi"t医t ph泳c t衣p 荏 khu v詠e"rj逢運ng 3 t瑛vtcpugev"3"8院n transect 14 s衣t l荏 t瑛 5m cho 8院n 43m, trung bình 22o"pij c"n "vtwpi"d·pj"3o1p<o0"Mjw"x詠e"rj逢運ng 4 t瑛 vtcpugev"37"8院n transect 24 s衣t l荏 t瑛 11o"8院n 24m trung bình 15m, trung bình xĩi l荏 2o13p<o0"Mjw"x詠c xã An Hi羽p t瑛 transect 25 8院n transect 40 s衣t l荏 t瑛 26m 8院n 387m trung bình kho違ng 206m, trung bình 30o13p<o0"V·pj"j·pj"u衣t l荏 nhi隠u nh医t là 387m t衣i transect 35 (khu v詠c xã An Hi羽p) s衣t l荏 ít nh医t là 4m khu v詠c rj逢運ng 3, t嘘e"8瓜 s衣t l荏 tùy t瑛pi"vtcpugev"pj逢pi"vtwpi"d·pj"trong kho違ng 11o13p<o0 E pi"vtqpi"v運i gian 2005-2008 荏 khu v詠c rj逢運ni"5"x "rj逢運ng 4 cĩ m瓜v"8q衣p"8逢嬰c làn kè bê tơng nên t瑛 khi làm kè kơng xĩi l荏 n英a pj逢pi"khu v詠c An Hi羽p thì xĩi l荏 l衣i nhi隠w"j挨p0 DＶpi"14<"DＶpi"ikƒ"vtお"z„k"nぞ"dぜ"u»pi"vな"p<o"4224"8ｘp"p<o"422; STT Khu v詠c S衣t l荏 nh臼 nh医t (m) S衣t l荏 l噂n nh医t (m) Trung bình (m) T嘘e"8瓜 s衣t l荏*o1p<ơ 1 Rj逢運ng 3 5 43 20 5 2 Rj逢運ng 4 11 24 15 2 3 An Hi羽p 26 387 206 30
D詠 báo bi院p"8瓜pi"8院p"p<o"4242"mjw"x詠c t衣i v鵜 trí transect 31 x違y ra hi羽n v逢嬰ng xĩi l荏 nhi隠u nh医t, n院u khơng cĩ các bi羽n pháp b違o v羽 t噂i n<o"4242"cĩ th吋 xĩi l荏 là 330m. Tuy nhiên khu v詠c t瑛 vtcpugev"47"8院n transect 40 cĩ h羽 s嘘v逢挨pi"swcp" cao, khu v詠c t瑛 vtcpugev"3"8院n transect 25 th医r"8衣t 60-70%. Tính tốn t嘘e"8瓜 thay 8鰻k"8逢運ng b運 8逢嬰c tính trên t瑛ng transect theo k院t qu違 b違pi":0"Pj逢"x壱y hàni"p<o" tính t瑛p<o"3;98"8院n 2009 là trung bình 23.2o1p<o thu瓜e"rj逢運ng 4, cịn cĩ ch厩 t嘘c 8瓜 vjc{"8鰻i m衣nh nh医t là 42.5o1p<o"v衣i transect 33 thu瓜c xã An Hi羽p. Cĩ ch厩 t嘘c 8瓜vjc{"8鰻i ít nh医v"n "6o1p<o"v衣i các transect 2 thu瓜e"rj逢運ng 3.
Theo th詠c t院 t瑛 422:"8« xây kè m瓜v"8q衣p"rj逢運ng 3 t瑛 v鵜 trí transect th泳 1 8院n transect s嘘 9 do v壱y s胤 khơng gây s衣t l荏 khu v詠e"z¤{"mfl"pj逢"x壱{"8瓜 s衣t l荏 8逢c" vào mơ hình d詠dƒq"8院p"p<o"4242"khu v詠e"z¤{"mfl"mj»pi"vjc{"8鰻ị
RJ井P"KKK<"M蔭V"NW一P"XÉ"MK蔭P"PIJ卯 IIỊ10"M蔭V"NW一P
Tình vt衣pi z„k"n荏"d運"u»pi"p„k"tk‒pi"x "dk院p"8瓜pi"8逢運pi"d運"p„k"ejwpi"n "j羽" sw違" e栄c" u詠" v逢挨pi" vƒe" ik英c" f”pi" ej違{" x " n”pi" f磯p dịng sơng, nên nĩ mang tính mj»pi"鰻p"8鵜pj"e栄c"f”pi"ej違{"x "v pj"rj泳e"v衣r"e栄c"n”pi"f磯p"f”pi"u»pị"p„"nw»p"x壱p" 8瓜pi"x "dk院p"8鰻k"vjgq"e違"mj»pi"ikcp"x "vj運k"ikcp0"D‒p"e衣pj"8„."p„"e”p"ej鵜w"pjk隠w" vƒe"8瓜pi"v瑛"o»k"vt逢運pi"v詠"pjk‒p."dk院p"8鰻k"mj "j壱w."p逢噂e"dk吋p"f¤pix "eqp"pi逢運k0"Fq" x壱{ xk羽e 8逢c"tc"o瓜v"o»"j·pj"v pj"vqƒp"8吋"ikƒo"uƒv"dk院p"8瓜pi"8逢運pi"d運"x "f詠"dƒq" vtqpi"v逢挨pi"nck"n "t医v"vj詠e"v院"x "e亥p"8逢嬰e"ƒr"f映pi"t瓜pi"t«k.
X噂k"vj運k"ikcp"x "f英"nk羽w"j衣p"j姻r"fq"x壱{"vtqpi"nw壱p"x<p"p {"ej雨"u穎"f映pi"違pj" x羽"vkpj"Ncpfucv"v瑛"p<o"3;96 8院p"p<o"422;0"V瑛"違pj"Ncpfucv"8c"vj運k"ikcp"x噂k"m悦" vjw壱v" zƒe" 8鵜pj" 8逢運pi" d運" mjw" x詠e" u»pi" Vk隠p" 8q衣p" ej違{" swc" vj pj" rj嘘 Sa Aéc Ỵ A欝pi"Vjƒr"e映"vj吋<"
A嘘k"x噂k"違pj"Ncpfucv"OUU *違pj"Ncpfucv"p<o"3;98+<"u穎"f映pi"rj逢挨pi"rjƒr" 違pj"v益"u嘘"m院v"j嬰r"(B4+B3)/B1;
A嘘k"x噂k"違pj"Ncpfucv"VO"x "GVO *違pj"Ncpfucv"v瑛"p<o"3;:;"8院p"p<o"422;+: u穎"f映pi"rj逢挨pi"rjƒr"違pj"v益"u嘘"e違k"vk院p"(B5+B4)/B2;
M院v"sw違"rj¤p"v ej"違pj"ejq"vj医{"dk院p"8瓜pi"8逢運pi"d運"8q衣p"u»pi"p {"n "t医v"n噂p" piw{"e挨"u衣v"n荏"ecq0"V瑛"FUCỤ"v pj"vqƒp"8鵜pj"n逢嬰pi"ejq"vj医{"v嘘e"8瓜"vjc{"8鰻k"8逢運pi" d運"j pi"p<o"v瑛"p<o"3;98"8院p"422;"là trung bình 23.2o1p<ọ"cịn e„"ej厩"v嘘e"8瓜" vjc{"8鰻k"o衣pj"pj医v"là 42.5o1p<o"v衣k"vtcpugev"53. E„"ej厩"v嘘e"8瓜"vhay 8鰻k" v"pj医v"n " 6o1p<o v衣k"eƒe"vtcpugev"3. Eƒe"m院v"sw違"rj¤p"v ej"荏"vt‒p"ejq"vj医{"mj違"p<pi"ƒr"f映pi" e»pi"pij羽"xk宇p"vjƒo"vtqpi"ikƒo"uƒv"dk院p"8瓜pi"8逢運pi"d運"vjgq"vj運k"ikcp"n "t医v"v嘘v"x瑛c" pijk‒p" e泳w" 8逢嬰e" rj衣o" xk" t瓜pi" n噂p" x瑛c" ik違o" d噂v" 8逢嬰e" pjk隠w" ejk" rj " x " x磯p" ik英" 8逢嬰e"v pj"vj運k"u詠"vtqpi"pijk‒p"e泳w0"A員e"dk羽v"u穎"f映pi"FUCU"8吋"8ƒpj"ikƒ"dk院p"8瓜pi" x "f詠"8qƒp"n "o瓜v"m悦"vjw壱v"t医v"jc{"i„r"rj亥p"x q"xk羽e"ikƒo"uƒv"8逢運pi"d運"o瓜v"eƒej" ej pj"zƒe"x "jk羽w"sw違0
IIỊ40"MK蔭P"PIJ卯
A嘘k"x噂k"違pj"Ncpfucvxk羽e"rj¤p"v ej"x "ikƒo"uƒv"dk院p"8瓜pi"8逢運pi"d運"p院w"mjw" x詠e"pijk‒p"e泳w"o "u衣v"n荏"jc{"dk院p"8瓜pi"pj臼"vj·"t医v"mj„0"Fq"x壱{"違pj"Ncpfucv"ej雨" vj詠e"jk羽p"8逢嬰e"vt‒p"rj衣o"xk"t瓜pi"x "o泳e"8瓜"dk院p"8瓜pi"8逢運pi"d運"v逢挨pi"8嘘k"o衣pj0" Vw{" pjk‒p" p逢噂e" vc" 8«" e„" x羽" vkpj" xk宇p" vjƒo" XPREDSat-1 (Viet Nam Resources Environment & Disaster-monitoring Satellite Ỵ 3+"x "8«"ej映r"8逢嬰e"pj英pi"d泳e"違pj" 8亥w"vk‒p"x噂k"8瓜"rj¤p"ik違k"407o"*Rcpejtqocvke+"x "32o"*OwnvkUrgevtcn+"vj·"xk羽e"ƒr" f映pi"e»pi"pij羽"xk宇p"vjƒo"x q"vtqpi"pijk‒p"e泳w"mjqc"j丑e"x "vj詠e"vk宇p ew瓜e"u嘘pi"n " x»"épi"vjw壱p"n嬰k0"Mjk"Xk羽v"Pco"8«"ej映r"8逢嬰e"pj英pi"違pj"xk宇p"vjƒo"x噂k"8瓜"rj¤p" ik違k"ecq"pj逢"x壱{"vj·"xk羽e"ikƒo"uƒv"dk院p"8瓜pi"8逢運pi"d運"ejq"eƒe"mjw"x詠e"mjƒe"vt‒p" n«pj"vj鰻"Xk羽v"Pco"n "jq p"vq p"mj違"vjk"x "e„"vj吋"j·pj"vj pj"d瓜"e挨"u荏"f英"nk羽w"vtqpi" GIU"8吋"e壱r"pj壱v"x "ikƒo"uƒv"vj逢運pi"zw{‒p"eƒe"mjw"x詠e"e„"piw{"e挨"u衣v"n荏"ik¿r"鰻p" 8鵜pj"8運k"u嘘pi"ejq"pj¤p"f¤p"x "i„r"rj亥p"rjƒv"vtk吋p"mkpj"v院"z«"j瓜k"ejq"mjw"x詠e0""
A吋"e„"v k"nk羽w"pijk‒p"e泳w"mjqc"j丑e"ƒr"f映pi"vtqpi"ikƒo"uƒv"dk院p"8瓜pi"8逢運pi" d運"v衣k"pj英pi"p挨k"e„"piw{"e挨"u衣v"n荏"ecq0"Mk院p"pij鵜"Xk羽p"j p"n¤o"Mjqc"j丑e"x "E»pi" pij羽"Xk羽v"Pco"ewpi"e医r"eƒe"d泳e"違pj"xk宇p"vjƒo"fq"XPTGFUcv-3"ej映r"e„"8瓜"rj¤p" ik違k"ecq"x噂k"mkpj"rj "vj医r"8吋"vj詠e"jk羽p"jk羽w"sw違"e»pi"vƒe"ikƒo"uƒv"vj逢運pi"zw{‒p" nk‒p"v映e"eƒe"mjw"x詠e"e„"piw{"e挨"u衣v"n荏"ecq"i„rrj亥p"f詠"dƒq"ej pj"zƒe0
RJ井P"KX<"VÉK"NK烏W"VJCO"MJ謂Q"XÉ"RJ影"N影E
KX03""VÉK"NK烏W"VJCO"MJ謂Q
IV.1.1 V k"nk羽w"vk院pi"xk羽v
[1] Lê M衣pj" J́pi" ÐFk宇n bi院n lịng d磯p" u»pi" O‒" M»piĐ, Nhà xuＸt bＶn Nơng Nghiうp, 2003.
[2] N‒"Vjcpj"Ej逢挨pi, Ak隠w"vtc"e挨"d違p"fk宇p"dk院p"u衣v"n荏"u»pi"Vk隠p"v瑛"Uc"Afie"8院p" dk‒p"ik噂k"Xk羽v"Pco"- Campuchia, Xkうp"Mjqc"jがe"Vjて{"nぢk"Okｚp"Pcọ"422:0
[3] Ph衣m Tích Xuân, Tr亥n Tr丑ng Hu羽."ppm"ÐPijk‒p"e泳w"8ƒpj"ikƒ"vck"dk院n s衣t l荏 b運 sơng khu v詠c các t雨nh mi隠n núi phía b逸eĐ."Aｚv k"8じc lｆp cＸr"pj "p⇔ずc.
[4] Lê M衣pj"J́pị"N‒"U¤ọ"Akpj"E»pi"U違p."N¤o"A衣o Nguyên, Ph衣m Bách Vi羽t, ppm""ÐPijk‒p"e泳u d詠 báo phịng ch嘘ng xĩi l荏 b運 sơng C穎w"NqpiĐ."Báo cáo tごng kｘt dば án khoa hがc cơng nghう cＸr"pj "p⇔ずc, Viうn Khoa hがc Thてy lぢi Miｚn Nam 2001. [5] N‒"X<p"Vtwpi, Giáo trình Vk宇p"vjƒọ"Nxb AH sw嘘e"ikc Tp. HCM.
[6] Nguy宇n T泳 D亥n, Nguy宇n Th院 Ti羽r."4225"ÐZw"vj院 bi院p"8瓜ng c栄a các c穎a sơng chính 荏 d違i ven bi吋p"8欝ng b茨ng Sơng H欝piĐ."TＴp chí khoa hがc và cơng nghう biあn T3, Sぐ 1. Tr 25-35.
[7] Ph衣m Th鵜 Rj逢挨pi"Vj違o, H欝 A·pj"Fw育p."A員ng X<p"V臼, 2009 ÐVt ej"t¿v"8逢運ng m詠e"p逢噂c t瑛 違pj"NcpfucvĐ."Science & Technology Development, Vol 12, Nọ12 - 2009.
[8] Ph衣m Bách Vi羽v."N¤o"A衣o Nguyên và Ph衣m Th鵜 Ock"Vj{*4226+"ÐU穎 d映pi"v逢" li羽u vi宇n thám cho nghiên c泳u di宇n bi院p"8逢運ng b運 bi吋n phía Nam Vi羽t NcoĐ."Báo cáo hじi nghお khoa hがe"vt⇔ぜpi"8Ｔi hがc Bách Khoa, Tp. HCM.
V.1.2 V k"nk羽w"vk院pi"cpj
[9] Aksehir, ẠẠ, Ghorbanali, Ạ, Nouri, N. (2007) ÐCoastline Change Detection Wukpi" Tgoqvg" Ugpukpi" Đ." International Journal of Environmental Science of Technology, 4(1), pp. 61-66.
[10] Guariglia, Ạ, Buonamassa, Ạ, Losurdo, Ạ, Saladino, R., Trivigno M., Zaccagnino, Ạ and Colangelo, Ạ (2006) ÐA Multisource Approach for Coasline
Ocrrkpi" cpf" Kfgpvkhkecvkqp" qh" Ujqtgnkpg" EjcpiguĐ."Annals of Geophysics, 49(1), pp. 295-304.
[11] Siđiqui, M. N. and Maajid S. (2004) ÐMonitoring of Geomorphological Ejcpigu" hqt" Rncppkpi" Tgencocvkqp" Yqtm" kp" Eqcuvcn" Ctgc" qh" mctcejk." RcmkuvcpĐ." Advances in Space Research, 33(7), pp. 1200-1205.
[12] Philip-Neri Jayson-Quashigah, Kwasi Appearing Ađo, and Kufogbe Sosthenes Kodzo, 2013. ÐMedium Resolution satellite imagery as atool for monitoring shoreline changẹ Case study of the Eastern coast of GhanaĐ."Journal of Coastal Research,Special Issue Nọ 65,2013, pp.511-516.
[13] Neamat Karimi & Dr. Mohammad Reza Mobasheri (2012) ÐUjqtgnkpg"ejcpig" analysis of Urmia Lake using multi-temporal satellite imagesĐ." Computer and Information Science, Vol. 5, Nọ 5; 2012.
[14] Maged Bouchahma & Wanglin Yan. (2012) ÐAutomatic Measurement of Shoreline Change on Djerba Island of Tunisia Đ." Computer and Information Science, Vol. 5, Nọ 5; 2012.
[15] Weifu Sun, Jie Zhang, Guangbo Ren, Yi Ma, Shaoqi Nị (2013) ÐCoastline Remote Sensing Monitoring and Change Analysis of Laizhou Bay From 1978 to 2009Đ." International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE 2013), Vol. 7, pp. 39-42, 2013.
[16] Maged Bouchahma, Wanglin Yan & Mohamed Ouessar. (2012) ÐIsland Coastline Change Detection Based on Image Processing and Remote Sensing Đ." Computer and Information Science, Vol. 5, Nọ 3; May 2012.
[17] Sanjeevi Shanmugam, Jayaprakash Nayak (2013) ÐRemote Sensing and Field Studies to Evaluate the Performance of Groynes in Protecting an Eroding Stretch of the Coastal City of ChennaiĐ." GIS Ostrava 2013-Geoinformatics for City Tranformation, Otrava, 2013.
[18] Albuquerque, M., Espinoza, J., Teixeira, P., de Oliveira, Ạ, Correa, Ị, Calliari, L., (2013) ÐErosion or Coastal Variability: An Evalution of the DSAS and the
change polygon methods for the Determination of Erosive Processes on Sandy DgcejguĐ."Journal of Coastal Research, Special Issue, Nọ 65, pp. 1710-1714. ]3;̲"Rjco"Vjk"Rjwqpi"Vjcq."Jq"Fkpj"Fwcp"cpf"Acpi"Xcp"Vq0"*422:+"ÐIntegrated Remote sensing and GIS for calculating Shoreline Change in Phan Thiet Coastal CtgcĐ." Proceedings of International Symposium on Geoinformatics for Spatial Infrastructure Development in Earth and Allied Sciences, pp. 153-158.
]42̲" Vtcp" Vjk" Xcp." Vtkpj" Vjk" Dkpj." 422:" ÐUjqtgnkpg" Ejcpig" Fgvgevkqp" vq" Uerve Uwuvckpcdng" Ocpcigogpv" qh" Eqcuvcn" ¥qpg" kp" Eww" Nqpi" Guvwct{Đ."International Symposiumon Geoinformatics for Spatial Infrastructure Development in Earth and Allied Sciences: 351-356.
]43̲"Rjco"Dcej"Xkgv"gv"cn."4224"ÐFgvgevkpi"ejcpigu"kp"tkxgtdcpm"qh"Ogmqng River, XkgvpcoĐ."GIS Development, 6/10: 33-35. The Asian GIS Monthlỵ
[22] Ph衣o"Rj逢挨pi"Vj違ọ (2012) ÐMonitoring shoreline Change in the Coastal Area qh"Swcpi"Vtk."Xkgv"Pco"d{"Wukpi"Tgoqvg"Ugpukpi"cpj"IKUĐ."IKU"kfgcu; October, 2012.
[23] Pham Bach Viet." Vtwqpi" Piqe" Vwqpị" Piw{gp" Vjcpj" Okpj." 4226" ÐWukpi" time-Series remotely Sensed Data to Trace Historical Changes of LocAn River Oqwvj" CtgcĐ." Proceedings of International Symposiumon Geoinformatics for Spatial Infrastructure Development in Earth and Allied Sciences: 172-177.
[24̲" Piw{gp" Jcpj" Sw{gp." Vtcp" Okpj" [." Ng" Vjk" Vjw" Jkgp." 4226" ÐWukpi" tgoqvg" Ugpukpi" Vgejpkswgu" hqt" Eqcuvcn" ¥qpg" Ocpcigogpv" kp" JcNqpi" Dc{" Xkgv" PcoĐ." Proceedings of International Symposium on Geoinformatics for Spatial Infrastructure Development in Earth and Allied Sciences: 151-156.
]47̲"Rjco"Dcej"Xkgv."Nco"Fcq"Piw{gp."Jq"Fkpj"Fwcp"ÐWukpi"tgoqvgn{"ugpugf" fcvc"vq"fgvgev"ejcpigu"qh"Tkxgtdcpm"kp"Ogmqpi"Tkxgt."Xkgv"Pco"Đ."Rtqeggfkpi"qh" Asian Conference on GIS, GPS, Aerial photography and Remote sensing, Bangkok- Thailand, Aug. 2002.