Cấu trúc và biến dạng bãi biển đường 14 đồ sơn hải phòng tài nguyên và môi trường biển,

T ii.i n g u y e n 10 T v ii M i t r u i r n g b ie n lie u ve baa m oi N guyen tv C hu III -ZYXWVUTSRQPONMLKJIHGFEDCBA 1996 T ( ip hoa phan H i, dao Q uang Pham dai s6 ket yen qua bo ung Phan dung tu lie u v ie n H a i duong tia « D u e T h a n h , N f? u y e n H u u v ie n th a rn hoc N guyen Le tro n g ta i H a i C hu tru e v a b ie n dang bai b ie n duong D in li cu T ran tr a « Due T h q n h , T r f in D ln h N guyen Due C u , D in li V a ll Pham Hudn, Lan, ph6ng v a ta c to a n dong h e th o n g hoc trie u tro n g Ldn , Q uang Tudn H Phong tu a « , V :y , N g u y e n ru Phuong Hoa, T h i K im A n li d o g io , d o n g lu u nho va nhung vung nuoc song nuoc yen be) b ie n 115 Pham 14 Phan vung nuoc tro i s in h bang th a i b ie n phuong N in h phap T h u a n -B in h th a n h T huan phan V a ll H u t in tro n g 15 D ac d ie rn tra m ric h phan bai b6 trie u to n g ham cua v u rig lu u lu o n g song B ach 122 huynh s u lfu a V e in d ie m th u y h6a vung b ie n q u a rt D ang 128 dao Co tro n g d a u tro n g th o i g ia n nuoc th a n g b ie n yen b c m ie n T ru n g duong tro n g tra m tic h dam pha qua duong tin h cua ro a n th u c nang suat v ~ lt n o i trn n g so cap h~ dam va N am 147 T am V an Luong G ia n g -C a u m o t s h ie u pha Do 338 142 o te u /1 9 -0 /1 9 N guyen 19 K et C~ N in h ) Van V ie t Pham D in h Due T o (O w in g Luu 17 N ong sat tro n g N guyen 16 D ac rn u a c h in h La 18 103 ca tta u N guyen Q uang hoan c a c v in h L tin , V (IIZ D in li Son, N guyen 13 M o 93 V an H uy, N guyen V a ll Pham Do 14, cuu Phong N guyen C tiu T ie u Nhu n g h ie n H i, C u, N guyen D ue WVUTSRQPON tia « D u e T h a n h , T rung, T r a n D in lt L d n , N guyen A n, 11 M ot L o n g GFEDCBA Vy B ach am qua G ia n g -C a u T r Q llg eu«, H 154 DUe Cu d in h H D O ( ln 163 eo Tiii nguy€n vel M 6i truirng bien T4p III • wvutsrqponmlkjihgfed 1996 im ages have been applied efficiently to coastal zone studies ill the H aiphong Institute oj O ceanology Though the interpretation has been done sim ply with visual analysis, its results have proved QPONMLKJIHGFEDCBA be well for the coastal zone study and m anagem ent Rem ote sensing data application are to estim ate coast present status, landuse and waters, to investigate and inventory natural resources types oj wetlands, m a n g r o v e s , etc , and study coastal ongoing processes, dynam ics of coastal erosion and deposition, channell deform ation, inlet closing or m oving processes o] coastal lagoons as well as sedim ent transport From the applications, however, som e difficulties were em erged as a low level of interpretation capacity and facility fedcbaZYXWVUTSRQPONMLKJIHGFEDCBA * * CAU TRUC VA BIEN * D~NG BAI BItN DO SON, HAl PHONG DUONG 14, • Triin D lic Thanh, Trail D inh Liin, Nguylll H tiu Or, Nguyll! Chu uo; Nguylll D lic C I,I" , D inh Vall H uy, Nguyln Q uang Tuiin, Pham Van H ulin", Pham Van VJ' •• , Nguyln TIl; Phtrtm g H o a , Nguyln Thi Kim Anh, I MO Dlu Bai bien Duong 14 keo dai km ap ngoai de Carn Cap phia tay nui Doc, D o Son, Hai Phong, narn d vung cua song hinh pheu c6 thuy tr ieu bien d¢ Ion [6] N o co vai tro quan lam dern chan cho mi)t doan de xung yeu bao v~ true tiep cho 1.600 khu kinh te rnoi bao gorn ca khu che xuat Duong 14, va phong h: cho mot vung dong bang rong Ion voi khoang 150 km2 va 20 van dan Tuyen de luon (1 trang thai xung yeu lien quan den qua trinh x6i 10 bai phia ngoai, Vi v~Yt nghien dang bai bien d day ngoai y nghia khoa cuu d IU true, bien hoc lam sang t6 nguyen nhan va xu the bien dang bai quan he voi t6 hQP cac yeu t6 dong luc cua mot vung • Cong trinh la kel qua c u a d~ ta i Ma s6 7.3.1 thuoc chuycn nganh cac khoa hoc vc Irai dill 1996-1997 •• Dai hoc Qu6c gia Ha NQi 103 va M 6i truirng bien Tiii nguyen c6 thuy tuyen trieu bien d(l lon va c6 che de qua n C h u o n g tr inh I(,)i cho Tiip /11 - 1996 cua Hai d(l gi6 rnua, Phong Xin chan n g h ie n c u u c o b a n cap tac gia tap hop t~lP the tr inh nghien gap N h a n u o c dei tao xu Iy phan tich phan bao earn on Ban ve rnot nhiern fedcbaZYXW chu moi d ie u k ie n thuan ta i lie u va hoan cong cuu II.wvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA TAl LIE;u vA PHUONG PHAp lkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Bai viet ph an tich Ul ket qua nghien va t~lP h o p so lieu dieu Hai Duong Hoc t~li Hai Phong, rnoi trunng dia chat yen hien sat rmrc d() hoi tu de danh Hai'' narn 1993, Carn - Narn 1992-1993, 14-Do "Nghien Trieu SOn - Hai Phong'' nhieu narn narn cua 1990-1993, cua d a p Dinh sa boi lui.)ng hoc thuoc sat tac gia tre n co so xu "Dieu thuat ky de tai dip Nha nuoc hen Hai tuyen ve tra sat khao ca Ngoc d6i vdi vung ding V~lO bao vo Phong'' de KT.03.] Iy, vien Phan tra khao kha thi cua viec xay dung huong den cluing khoa "Luan khan Phong" gia tinh quan t~p the biet la C~lC de tai "Dieu d~c anh cua tra Hai cuu lien cuu cua narn bai Duong Vien Khoa hoc T h u y I cue dai 35cm/s, dong chay len huong tfly bac doc bo anh keo dai keo dai 10 - 12 gib, toc de) cue dai 42cm/s Tinh then mat cat tit bil den de) sau 1m, moi narn xuong phia dong - Song: co 308.000m nun cat lo lung di chuye n doc yen bo nam [5, 7] Song () tram Hon Dau can trung binh 0,5 - 1,0m, cue d~li Sm Mac du khu vue hcli nghie n cuu co toc de) gio kha Ion, trung hinh 6;Xm/s, 109 Tai nguyen va M {ji QPONMLKJIHGFEDCBA tr u im g bien T(lp III - wvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDC /996 C\fC dai 45m/s trang bao nhung dia hinh kha kin, co nui Doc che chan d(> cao song khong Ion, trung binh 0,3 - 0,4m DO cao song Ion nhat nhan n&h ghi duoc la 0,8m VaG mua gio dong bac, 1m co bao VaG mua gio dong nam [5, 9] Khu vue chiu anh huong cua song huong dong bac va dong nam voi hai rnua gio, anh huong cua song huong dong bac quyet dinh hon doi voi di chuyen boi tich doc bo ung voi huong dong tong hop ve phia dong nam Bung nam muc m1{Je d~o d(mg qua fedcbaZYXWVUTS Cae mue nUlle trieu va so I S6 D () m uc nuoc dao dO ng qua cao (m/OmHD) '(1992) " Trieu binh T r ie u c a o n u o c k e r n trung Muc trieu trung binh cao nMit trung 3.6 b in h • 23 2.4 246 I.R 36.1 T r ie u th a p n u o c k e r n tr u n g b in h 1.10 245 Trieu thap 0.40 67 n ttdc i:ttong Ket qua tinh m o h in h C E R C Trang toan trung binh , dong boi tich doc bo song duoc Q 202 , thuc hien theo [2 ]: = x 10 h 5/2 f(cosa )1/4sin2a do: ho va a o la dt) cao va goc hop voi duong f la tan xuat trung binh nam cua song bo cua s6ng.· 2.02 la he s() thuc nghiep vung bo cat thoai, d(> doc nho, duong bd thang Cac dac trung quan song d day dU