Igagasi - Iyini? Yini ebangela namagagasi

Oceans ophila imithetho yayo siqu, okuyinto zivumelana imithetho yonke. Sekuyisikhathi eside abantu baqaphela ukuthi kwabo amanzi ngenkuthalo ukuhambisa, kodwa bengaqondi ukuthi yini exhumene lezi iyehla iyenyuka izinga lamanzi olwandle. Ake sithole ukuthi kwakungani yini isimo, igagasi ongaphakeme?

Tides: ocean izimfihlakalo

Itilosi wayazi kahle ukuthi namagagasi - lo mkhuba nsuku zonke. Kodwa lokho nesimo salezi zinguquko bengaqondi noma izakhamuzi ezivamile futhi izingqondo ngokwesayensi. Ekhulwini lesihlanu BC, izazi zefilosofi nazo ziye wazama ukuchaza futhi elichaza indlela izilwandle ukuhambisa. Tides ethulwa okuthile kumnandi futhi okungavamile. Ngisho zesayensi ezidumile wacabanga namagagasi yokuphefumula iplanethi. Le nguqulo sekuneminyaka ezinkulungwaneni zeminyaka. Kuphela ekupheleni kwekhulu lesikhombisa, igama elithi "igagasi" lihlotshaniswa ukunyakaza of the Moon. Kodwa ukuchaza inqubo kanye akazange ukuphatha Ngokombono ongokwesayensi. Ngemva kwamakhulu eminyaka ososayensi baye baqonda lesisimanga futhi wanikeza incazelo enembile yoshintsho yansuku zonke ezingeni amanzi. Esavela zenzeka ekhulwini lamashumi amabili, isayensi Oceanography wathola ukuthi isimo - lokhu ukukhulisa ukwehlisa amanzi izilwandle ngenxa ithonya enyanga adonsela phansi.

Yonke indawo ukuthi amagagasi ziyafana?

Ithonya inyanga ku ungqimba lomhlaba akufani, ngakho asikwazi bathi emhlabeni wonke ncamashí namagagasi. Kwezinye izingxenye zomhlaba ekushintshashintsheni nsuku zonke kolwandle sifinyelela phezulu eyishumi nesithupha amamitha. Futhi abahlala ogwini Black Sea cishe awuboni namagagasi njengoba benjalo awuwona yini ongelutho kunayo yonke emhlabeni.

Ngokuvamile, ushintsho level amanzi senzeka kabili ngosuku - ekuseni nakusihlwa. Kodwa isimo eNingizimu China Sea - ukuhamba emanzini uquqaba, okuyinto livela kanye kuphela amahora amabili nane. Ngaphezu kwakho konke, ekushintshashintsheni kolwandle lubonakale esikhathini sokuhlupheka, nakwezinye izindawo wayiswa. Uma unakisisa, kuzobonwa ngokubona okubonakala ngeso lenyama, ngokushesha kangakanani ishiya noma amanzi eza. Ngezinye izikhathi imizuzu embalwa liyophuma by amamitha amahlanu.

Yini ebangela namagagasi?

Njengoba sesibonile, izinguquko kolwandle kubangelwa ithonya ungqimba lomhlaba ka njalo engumngane ukwethwasa kwenyanga yakhe. Kodwa kanjani le nqubo? Ukuze uzwisise ukuthi yini isimo, kubalulekile ukwethula ngokuningiliziwe nokuxhumana wonke amaplanethi zesimiso sonozungezilanga.

Moon Nomhlaba kukhona maqondana njalo komunye nomunye. Umhlaba ukudansela isiginci sakhe nomngane wakhe, owavele, ivame ukuba ukudweba iplanethi yethu. It ikuvumela ukuba sigcine umbango engapheli phakathi izindikimba ezimbili yasezulwini zisuka. Moon Nomhlaba ukuhambisa omise zabo, bese uyahamba, uyeza sisondela nomunye.

Ngaleso sikhathi, lapho inyanga ingena unozungezilanga wethu eduze, kube uqweqwe egoba kuye. Lokhu kubangela injabulo namanzi eMhlabeni, sengathi avame ahlule. satellite kude womhlaba ukwehla kolwandle global.

Isikhawu kwamagagasi Emhlabeni

Njengoba igagasi - lokhu iyisici njalo, khona-ke kumelwe abe uhla yayo siqu eqondile ezinyakazayo. Oceanographers bakwazi ukubala isikhathi esiqondile yosuku enqunywa ngokuthwasa kwenyanga. Leli gama libizwa Moon emzileni sizungeze iplanethi yethu, kuba isikhathi eside kunokujwayelekile ngathi amahora amabili nane. Nsuku zonke, namagagasi elivulela imizuzu amahlanu. Lesi sikhathi liyadingeka wokuzunguzwa "uhambisane" inyanga ezithathekayo nantathu degrees ngoba usuku eliwumhlaba.

Ithonya elawula ukuphakama kwamagagasi asolwandle emfuleni

Kuyini igagasi, sesibonile, kodwa bambalwa bayazi ngomthelela lezi iyehla iyenyuka emhlabeni ulwandle. Ngokumangalisayo, ngisho nemifula zithonywa elawula ukuphakama kwamagagasi asolwandle, futhi ngezinye izikhathi umphumela lokhu kokungenela Liyindawo okwesabisayo.

Phakathi esindayo wave olwandle lapho isifike esizalweni somfula, lihlangabezana fresh kwamanzi. Ngenxa yalokho, kuhlangana kwabo amanzi nokuminyanisa ezahlukene kwakhiwa kushaft onamandla ngesivinini esikhulu uqala ukunyakaza ngokumelene ukugeleza komfula. Lokhu kusakaza libizwa boron, futhi kuba enamandla okubhubhisa endleleni yayo, cishe zonke izinto eziphilayo. Isenzakalo esifanayo imizuzu embalwa uhlambulule nemizana ugu blurs ugu. Boron wayeka ngokuzumayo njengoZamcolo ke kwase kuqalile.

Ososayensi baye eqoshiwe izimo lapho ihlathi enamandla waphenduka emifuleni abuyele noma ayeke ngokuphelele kubo. Kulula ukucabanga ukuthi inhlekelele bonke abakhileyo emfuleni baba amacala lokukwazi isinyathelo of amagagasi.

Njengoba namagagasi ezithinta izilwane zasolwandle?

Akumangalisi namagagasi zinomthelela omkhulu kuzo zonke izinto eziphilayo ezihlala ezindaweni ezijulileyo ulwandle. Olwaba nzima ukuba alandise izilwane ezincane abahlala ezindaweni ezisogwini. Sinenkosi njalo ukuzivumelanisa noshintsho izinga lamanzi. Kwabaningi babo namagagasi - kuyindlela ukushintsha endaweni yawo. Uma amanzi ephakeme, ezinamagobolondo lihamba eduze ukuze aqinise futhi uthole ukudla ngokwabo, ukusakaza wave udonsa kubo ujule olwandle.

Oceanographers baye babonisa ukuthi kunezinhlobo eziningi zasolwandle zihlobene ukuphakama kwamagagasi ogwini. Ngokwesibonelo, izinhlobo ezithile imikhomo at tide ongaphakeme kubambezela umzimba. Ngamanye-izakhamizi ngokujulile umsebenzi zokuzala kuncike ukuphakama wokuzuliswa amplitude yayo.

ososayensi abaningi bakholelwa ukuthi ukunyamalala ezinjengokungcoliswa ulwandle global ezingeni iyehla iyenyuka, kuzoholela ukushabalala izidalwa eziningi eziphilayo. Ngempela, kulesi simo, bayolahlekelwa amandla ngeke bakwazi ukulungisa iwashi oyizalayo ngaphansi isigqi esithile.

Ukujikeleza komhlaba: ithonya Kungakhathaliseki enkulu amagagasi?

Amashumi eminyaka, ososayensi basafunda konke okuhlobene "igagasi" eside. Lena inqubo ukuthi iwukwenza nezimfumbe ngaphezulu njalo ngonyaka. Ochwepheshe abaningi elihlobene ne Ukujikeleza izinga eMhlabeni of ukuphakama kwamagagasi ogwini. Ngokwalo mbono, bethonywe amagagasi ekhiqizwa yolwandle. Endleleni yabo ngaso sonke isikhathi unqobe ukungawi koqweqwe. Ngenxa yalokho, cishe imperceptible ukuba ukujikeleza izinga iplanethi bomuntu kubambezela.

Ukutadisha kwamakhorali zasolwandle, ososayensi zasolwandle wathola ukuthi kunezigidigidi ezimbalwa zezingosi edlule, osukwini womhlaba amahora amabili nambili. Esikhathini esizayo, Ukujikeleza eMhlabeni wehlisa ijubane nakakhulu, futhi esikhathini esithile nje ulingana amplitude kosuku enqunywa ngokuthwasa kwenyanga. Kulokhu, njengoba ososayensi ukubikezela, ebbs bese ugelezela nje zinyamalale.

imisebenzi ebalulekile ye wobuntu amplitude we oscillations kwezilwandle

Akumangalisi ukuthi isenzo kwamagagasi futhi umuntu echayeke. Ngempela, u-80% ukutshezi kanye Awukwazi ukuphendula ithonya inyanga. Kodwa akavumanga lowo muntu abe umqhele ukudalwa nemvelo, uma hhayi wafunda ukusebenzisa kuzobazuzisa cishe zonke izenzakalo zemvelo.

olwandle wave amandla Liyindawo okusezingeni eliphezulu, ngakho iminyaka eminingi wadala amaphrojekthi ahlukahlukene ukwakha izitshalo amandla ezindaweni amplitude ukunyakaza omkhulu wamanzi uquqaba. ERussia, lezi zitshalo abe ambalwa. Eyokuqala lwakhiwe White Sea futhi waba ufakazi oyedwa zokuhlola. Amandla kulesi siteshi akazange idlule kilowatts emakhulu asibhozo. Manje lesi sibalo sibonakala engenangqondo, futhi izitshalo ezintsha amandla usebenzisa wave olwandle, ukukhiqiza amandla ebhebhezela emadolobheni amaningi.

Izazi ukubona kulezi amaphrojekthi, ikusasa Russian umkhakha weze-energy, njengoba amandla olwandle uvumele ukunakekela imvelo kanye ukwenza ngokuvumelana nayo.

Tides - into yemvelo, okuyinto hhayi kudala awazange wafunda. Ngasinye esisha ukutholakala oceanographers kuholela ezinkingeni nakakhulu kule ndawo. Kodwa mhlawumbe, ososayensi ngolunye usuku uyokwazi ukuxazulula zonke izimfihlakalo ukuthi nsuku zonke inikeza esintwini ocean tide.