Benguela yangoku: Inkcazelo kunye neempawu

Benguela Current - abandayo kwabo amanzi elijikeleza kunxweme kwintshona Afrika kwi-Atlantic Ocean. Ohlamba inxalenye yasentshona lizwekazi, esiza ukusuka ezantsi kwaye ndileqeka nasentla, ngoko ukuya emntla-ntshona. Ngexesha intshukumo, umlambo gqolo Winds Western nokudlula kwi-South Equatorial. Ukubolekisa amanzi liqala ukuya ngezantsi i-Cape of Good Hope. Uye kuma kummandla oselunxwemeni ye Namib Intlango, nto leyo imi kummandla osentshona eAfrika.

Lobushushu, flow kunye nokuvula

Iqondo lobushushu ukuhamba komhlaba kwehlobo 18 + ... + 19 ° C kumzantsi kunye +26 ° C kwi North. Ebusika Benguela zipholile ukuya +15 ... + 22 ° C, ngokulandelelana.
Velocity amanzi yakhona ukusuka 1-2 km / h, engadlulanga 20-25 cm / umzuzwana. inqanaba ityuwa - 35-35,5 PPM.

James Rennell uthengwayo yeyomnye inkcazelo zokuqala yokumpompoza engaqhelekanga kude nonxweme Afrika. Phayaa ngowe-1832, wabhala ikhosi, ngokunika kuyo igama "South Atlantic Benguela yangoku." Rennell wabhala kwama kunxweme ka-West Africa, uzimisele ukuya ibhanti sentshinyela, ngoko wajika ngasentshona waza waba Equatorial Current.

Iimpawu ze Benguela Current

Ngexesha ingqalelo buthathaka, kwisixando sokwenziwa. Amanzi abandayo yhuu ukwandisa amathanga yokuhlala Penguin Afrika ku-30 ° inkululeko emzantsi.

Benguela yangoku ivavanywa i ngezenzeko ezingaqhelekanga phantsi kwempembelelo emoyeni. "Benguela Nino" - ekuthiwa-isenzeko efanayo kwi-Pacific imbonakaliso efanayo emanzini kufuphi Peru - El juanita. Uphawu kwakukho amatyala 3 eyenzeka ngo-1934, 1963, 1984. Ububanzi Benguela flow ifikelela 200-300 km emzantsi ngokuthe ukwandisa wabheka entla, iphi na km 750.
Yinto eyaziwayo ukuba yenye yemithombo ye-flow ithathwa i-Indian Ocean (malunga nama-25% ye-ubunzima transferred).

ulwazi olongezelelweyo

Ngempembelelo kwimozulu, ngenxa yoko kwezulu kunqabile. Oku kungenxa umoya obandayo, nto leyo luthe usinda ngaphezu ezishushu.

Ukuhanjiswa kwamanzi kakhulu ngokucacileyo umda kwimigangatho nemisinga kwaye ingalawuleki ngakumbi, ezililize kwintshona. imithamo yamanzi 20-25 Sv. Zonke zithuthwa babo Benguela Current. Kweyiphi ocean usenokubona ezi mpawu? utshintsho ebalulekileyo izikhombisi ezinjalo musa isandla. Ukusebenzisa iziphumo gidroanaliza ibonisa ukuba utshintsho unyuse kwisithuba-20%.

Ezi ngcali bafumana ubukho ifildi esebenzayo umsinga mesoscale. Siqulathe amakhonkco anticyclone enkulu kwiziko efudumeleyo kunye neempawu umoya ukuba elibandayo.

Ukushwankathela, singakwazi ukunika impendulo nabani na onomdla lo mbuzo: Benguela ngoku - eshushu okanye ebandayo? Ngokuqinisekileyo kubanda, nakubeni iimpawu kakhulu, nto leyo sele ikhankanyiwe apha ngasentla. I-flow sele lwaziwa ixesha elide, kodwa isifundo eneenkcukacha hydrologists zayo, oososayensi baqalisa kakhulu kutshanje. Ngexesha elifutshane sakwazi ukufumana imvelaphi yayo kunye nokubonelela inkcazelo encinane. Kwaye oku kukuba eqinile, yaye oku kumele isoyikiso navigation.