Ucwaningo Lwe-Tidal Dynamics Ezindaweni Ezisogwini Ezishisayo zase-Indonesia
I-Indonesia yaziwa njengezwe elikhulu kunawo wonke emhlabeni elinogu olude kakhulu kanye nezici ezihlukahlukene zogu—kusukela emachwebeni amancane kanye nemifula enodaka kuya eziqhingini zamakhorali ezivezwe amagagasi olwandle. Kulesi simo, amagagasi angenye yezinqubo ezibaluleke kakhulu zokubonisa ulwandle ngoba athonya cishe yonke imisebenzi ezindaweni ezisogwini: ukuphepha kwemikhumbi, izikhathi zokubeka imikhumbi, ukuhlela amachibi okudoba, ukuguquguquka kwenhlabathi, ngisho nokuba sengozini yezikhukhula zamagagasi. Ucwaningo lokuguquguquka kwamagagasi ogwini olushisayo lwase-Indonesia alusebenzi nje kuphela njengocwaningo lwesayensi kodwa futhi luyisisekelo sokwenza izinqumo ekuphathweni kwendawo yogu oluguquguqukayo noluqhubekayo.
Imiqondo eyisisekelo yamagagasi
Ama-tide aguquguquka njalo ezingeni lolwandle, ikakhulukazi aqhutshwa amandla adonsela phansi eNyanga neLanga kanye nokujikeleza koMhlaba. Lapho izikhundla ezihlobene zoMhlaba, iNyanga, neLanga ziqondaniswa (izigaba ezintsha nezenyanga egcwele), ama-tide asentwasahlobo ayenzeka, anebanga elikhulu lokugeleza kwamanzi. Ngokuphambene nalokho, lapho iNyanga neLanga zakha i-engeli engaba ama-degrees angu-90 (ikota yokuqala neyesithathu), ama-tide aphansi ayenzeka, anebanga elincane lokugeleza kwamanzi. Kodwa-ke, izimo zendawo ezifana nokuma kogu lolwandle, ukujula kwamanzi, iziteshi ezincane, kanye nokungqubuzana kwaphansi kungaqinisa noma kunciphise le mpendulo yokugeleza kwamanzi.
Ezindaweni ezishisayo njenge-Indonesia, amagagasi aphinde asebenzisane nezinye izici zesimo sezulu kanye nezolwandle—isibonelo, imimoya yemvula, umfutho womoya, amagagasi, kanye ne-Indonesian Throughflow (Arlindo). Lokhu kuxhumana okunezingxenye eziningi kuvame ukubangela amagagasi e-Indonesia ukuthi abonise ukwehluka okuyinkimbinkimbi kwendawo, okudinga ucwaningo olucophelelayo, oluqhutshwa idatha.
Izinhlobo ze-Tidal e-Indonesia
Ngokuvamile, amagagasi ahlukaniswa ngokuthi awe-diurnal, awe-semidiurnal, futhi axubile. Izindawo eziningi e-Indonesia zibonisa amagagasi axubile, okusho ukuthi amagagasi aphezulu kanye namagagasi aphansi awe-1 noma amabili ayenzeka ngosuku olulodwa, ngokuphakama okuhlukahlukene. Lokhu kushintshashintsha ngokuvamile kubangelwa yizingxenye eziyinhloko zamagagasi, njenge-M2 (i-lunar semidiurnal), i-S2 (i-solar semidiurnal), i-K1, kanye ne-O1 (i-diurnal), kanye nezinye izingxenye ezibangela ukungahambi kahle okuncane.
INtshonalanga ye-Indonesia, ikakhulukazi kwamanye amanzi ayo avulekile, ivame ukubonisa ithonya elivelele kakhulu le-semidiurnal. Okwamanje, izifunda zasempumalanga namanzi aneziqhingi eziyinkimbinkimbi zivame ukubonisa iphethini eqinile exubile. Lo mehluko ugcizelela iphuzu lokuthi inombolo eyodwa yolwandle ayanele ukuchaza yonke i-Indonesia; kudingeka imephu yendawo kanye nomodeli obamba ukwehluka kwendawo.
Ithonya lokwakheka kogu kanye ne-bathymetry
Isimo sogu kanye nokujula kolwandle (ukujula kolwandle) kudlala indima ebalulekile ekwakheni izici zolwandle. Ama-bay amancane angadala ukuzwakala kolwandle, andise ubukhulu bolwandle. Imisele yamanzi enemifula emikhulu yengeza ubunzima ngokusebenzisana kwemifudlana yolwandle kanye nokuphuma komfula, okudala izindawo ezixubayo ezithinta usawoti, ukukhukhuleka, kanye nokufuduka kolwandle. Ezindaweni ezineziqhingi eziningi ezincane, imisinga yolwandle ingasheshisa ngezikhala ezincane phakathi kweziqhingi, yakhe imisinga yolwandle yendawo ebalulekile ekuthuthweni kolwandle kanye nokuphepha kokuhamba.
Ezigwini ezinodaka, amagagasi anamandla angabangela ukuvuselelwa kwenhlabathi futhi andise ukukhukhuleka kwamanzi, okuthinta umkhiqizo oyinhloko kanye nempilo yezindawo zemvelo ezifana nemibhede yotshani basolwandle. Okwamanje, ezigwini zama-coral reef, izinguquko zamagagasi ezingeni lamanzi zinquma ukufinyelela kwamagagasi eziqongweni zama-reef, okuthonya amandla amagagasi afinyelela ogwini kanye nezinqubo zokuguguleka nokukhukhuleka.
Izindlela zokutadisha i-Tidal: ukubuka kuya ekumodeleni
Izifundo zanamuhla zokuhlola ulwandle ngokuvamile zihlanganisa izindlela ezintathu: ukuqaphela okuqondile, ukuhlaziywa kwe-harmonic, kanye nokulingisa ngezinombolo.
1. Ukubuka okuqondile (isilinganiso sokugeleza kwamanzi kanye nenzwa yokucindezela)
Ama-tide gauge afakwa ezikhungweni, emifuleni, noma eziteshini zasogwini ukuze aqophe amazinga amanzi njalo. Ezindaweni ezikude, izinzwa zokucindezela phansi kolwandle zingaba yindlela ehlukile. Idatha yesikhathi eside ibaluleke kakhulu ngoba ibamba ukushintshashintsha kwezinkathi zonyaka, izehlakalo ezimbi kakhulu, kanye nemikhuba yokwenyuka kwezinga lolwandle.
2. Ukuhlaziywa kwe-Harmonic
Kusukela ochungechungeni lwesikhathi sokuhamba kolwandle, abacwaningi bahlukanisa isignali ibe izingxenye ezihambisanayo (njenge-M2, i-S2, i-K1, i-O1) ukuze bathole ubukhulu kanye nesigaba sengxenye ngayinye. Lolu lwazi lubalulekile ekubikezeleni ukugeleza kolwandle, ukuhlela imisebenzi yechweba, kanye nokuqinisekiswa kwemodeli.
3. Ukumodela ngezinombolo kwe-hydrodynamics
Amamodeli afana ne-ROMS, i-Delft3D, i-MIKE, noma i-FVCOM asetshenziselwa ukulingisa amagagasi nemisinga ekuxazululweni kwendawo okulungisekayo. Ukumodela kuvumela izifundo zesimo, njengomthelela wokubuyiselwa komhlaba, ukuthuthukiswa kwechweba, noma izinguquko zogu emaphethini wamanje wamagagasi kanye nengozi yezikhukhula zamagagasi. Imodeli enhle idinga i-bathymetry enembile, izimo zemingcele ezivela kumamodeli womhlaba wonke wamagagasi, kanye nokuqinisekiswa kusetshenziswa ukubonwa kwensimu.
Ukusebenzisana kwamagagasi nemisinga, inhlabathi, kanye nezindawo zemvelo
Imisinga yolwandle "iyimixube" yemvelo ogwini. Lapho amanzi ekhuphuka, amanzi athuthela ezindaweni ezikude nasezindaweni zokungena kwamanzi; lapho ehla, amanzi ayaphuma, ethwele izinto ezilengayo. Ngokuhamba kwesikhathi, le nqubo inquma indawo yokujula kwemisele yokuthutha amanzi, ukwakheka kwama-delta amancane, kanye nokuguguleka kwamadwala asogwini ezindaweni ezithile. Emachwebeni amaningi ase-Indonesia, isidingo sokumba njalo sixhunyaniswe ngokungenakuhlukaniswa namandla emisinga yolwandle kanye nokuthuthwa kwendle.
Ezindaweni zemvelo ze-mangrove kanye ne-mash, amaphethini okugcwala kwamanzi (imvamisa kanye nobude bokugcwala kwamanzi) anquma kakhulu ukuhlukaniswa kwezitshalo kanye nokukhiqiza kwazo. Amagagasi nawo athinta ukusatshalaliswa kwezakhamzimba emanzini asogwini, okube nomthelela ekudobeni. Ngakho-ke, izifundo zokugcwala kwamanzi kufanele zibe yizifundo ezahlukene, ezixhumanisa i-physics yolwandle ne-ecology yasogwini.
Amagagasi olwandle, izikhukhula zolwandle, kanye nokushintsha kwesimo sezulu
Izikhukhula zamagagasi zingenye yezinkinga ezinkulu emadolobheni asogwini lwase-Indonesia. Nakuba amagagasi emvelo, umthelela wawo ungabhebhethekiswa ukwehla komhlaba, ukulahlekelwa yizithiyo zemvelo ezifana nama-mangrove, kanye nokwenyuka kwezinga lolwandle. Amagagasi asentwasahlobo ahambisana nezimo ezithile zezulu (isb., imimoya yasogwini kanye nomfutho ophansi) angenza kube kubi kakhulu ukukhukhula. Ngakho-ke, izibikezelo zamagagasi zodwa azihlali zanele; kudingeka izibikezelo zamagagasi aphelele ahlanganisa amagagasi, ukukhuphuka kwamanzi, amagagasi, kanye nezici zamanzi.
Ngomongo wokuzivumelanisa nesimo sezulu, ulwazi mayelana nokuguquguquka kwamaza lusiza ekuhleleni ukuphakama kwe-embankment, ukuhlela indawo yogu, ukwakheka kwe-polder, kanye nezinhlelo zokuxwayisa kusenesikhathi. Ukudweba amamephu ezindawo ezisengozini ngokusekelwe ezimweni ezimbi kakhulu zamaza kanye nokubikezela kokuphakama kwezinga lolwandle kuya ngokuya kuba yinto ebaluleke kakhulu.
Izinselele zocwaningo ogwini olushisayo lwase-Indonesia
Izifundo zokuhlola amaza e-Indonesia zibhekene nezinselele eziningana: ukusatshalaliswa okulinganiselwe kweziteshi zokuhlola amaza zesikhathi eside, ikhwalithi yokushintshashintsha kwe-bathymetry, kanye ne-geometry eyinkimbinkimbi yamanzi ase-archipelagic. Ngaphezu kwalokho, izindawo eziningi ezisogwini zishintsha ngokushesha ngenxa yokuvuselelwa kabusha, ukusatshalaliswa kwenhlabathi, kanye nokuthuthukiswa kwengqalasizinda, okudinga ukuvuselelwa njalo kwedatha namamodeli. Ukuhlanganisa imithombo eminingi yedatha—ukubonwa kwensimu, ukuzwa kude, kanye namamodeli omhlaba wonke—kuyisihluthulelo sokuthola isithombe esinembile.
I-Penutup
Ukuguquguquka kolwandle ezindaweni ezishisayo zase-Indonesia kuyinkimbinkimbi futhi kuthonywa kakhulu ukusebenzisana kwamandla ezinkanyezi nezimo zendawo ezifana ne-bathymetry, izimo zomhlaba zasogwini, kanye nezinhlelo zeziqhingi. Izifundo ezihlanganisa ukubonwa, ukuhlaziywa kwe-harmonic, kanye nomodeli wezinombolo ziyadingeka ukuze kukhiqizwe izibikezelo ezinokwethenjelwa nokuqonda imiphumela yamagagasi emifuleni, ezidakeni, ezindaweni zemvelo, kanye nengozi yezikhukhula zamanzi. Njengoba izingcindezi zokuthuthukiswa kolwandle ziyanda kanye nosongo lokushintsha kwesimo sezulu, ucwaningo lwamagagasi aluseyona nje into edingekayo yezemfundo kodwa luyisisekelo esibalulekile sokuhlela, ukunciphisa izinhlekelele, kanye nokuphathwa kolwandle okuqinile e-Indonesia.
Uma ufisa, ngingaguqula lesi sihloko sibe ngesezemfundo kakhulu (ngezingcaphuno kanye nohlu lwezincwadi), noma ngiqondise ukugxila esifundweni sendawo ethile (isib., uGu oluseNyakatho yeJava, iMakassar Strait, iJakarta Bay, noma ugu lwasePapua).
