Amundsen Sea: fannin binciken kasa, sauyin yanayi, fauna

A arewacin ruwan tekun Pacific a gefe daya kewaye da glaciers, da kuma a kan sauran - yammacin bakin Antarctica. Dukan surface an rufe tare da wani tafki wadanda mutane kankara.

M to shi zasu sake kakubawa cikin permafrost gabled Cape Dart. Don gabas ne tsibirin Thurston. Landmark - Meri Berd Land. Kamar yadda ka gani, ya kamata mu ba ruɗin kanmu, ba wani daya batu inda Amundsen Sea a cikin Pacific Ocean? A Hawaiian Islands ne, a wani mabanbanta part, kazalika da dukan rare yawon shakatawa inda ake nufi na rairayin bakin teku da kuma yawon shakatawa hutu.

Sashen halaye

Pool aka kẽwayesu da sauran arewacin sassa na teku, kamar: da Bellingshausen Sea da kuma Ross. Its yanki ne fiye da 98.000 murabba'in kilomita wani talakawan zurfin kawai a kan 250 mita. The taimako kama da harsashi, wanda yana da kananan nuna bambanci zuwa ga babban yankin tekun. A kan hanyoyin kasa falalen tari na glaciers.

A matsanancin iyakar Amundsen Sea shiryayye a cikin Pacific Ocean a zurfin biyar da ɗari mita. Saukarsa ga ruwa gangara bambanta, amma ƙasa ne santsi, ba tare da fasa ko matakai. Its tsawon kai hudu kilomita.

Nuna alama ruwa, gwargwado canje-canje a kai a kai. Matsakaicin taro na sodium chloride kai a hunturu da kuma shi ne 33 ppm. A watan Yuli, a lokacin da narkewa glaciers a tsakiyar sabo ruwa rage abun ciki na NaCl.

Bincike da kuma gano

Sunan kandami ya shahara discoverer kuma masanin kimiyya Roald Amundsen. Norway na dogon lokaci karatu Nordic da kuma Arctic yankuna na Antarctica. Kuma shi ne a nan, a cikin ƙasa, daga cikin dakin ajiye gawa marar amfani, fiye da na karshe tafiya.

Na yi kokarin samun kusa zuwa ga tudu, kuma ya sanya Dzheyms Kuk, wanda ya ziyarci wurin da biyu da rabi na XVIII karni. Mafi kusa zuwa iyo zuwa babban yankin gudanar North American icebreaker "Palmer" a cikin tsarin na Antarctic balaguro a 1993.

Don wannan rana, bayanai kan Amundsen Sea ne wanda bai isa da sabanin. Duk da ci gaban da fasahar su isa gaban banki sun zuwa yanzu babu wanda ya yi nasara. Its waha an dauki mafi tsanani, kuma kusantuwa.

A ƙirin ne wani jari na babbar tubalan na kankara. Su yanzu, sa'an nan an maye gurbinsu da m precipices. The ruwa yanki na Amundsen Sea ne na halitta garkuwa da Antarctic ƙasar. Ya aka kai tsaye da hannu a cikin samuwar icebergs. A kowace shekara a yankin samar 250 cubic kilomita na kankara.

weather

A kandami is located in da mulkin Antarctic sauyin yanayi. Sararin samaniyar samar da wani taro, ya fito daga cikin babban yankin. Ruwanta da wani m sadarwa tare da teku igiyoyin. Mafi qarancin zazzabi kiyaye a lokacin bazara watanni. A mafi jelly ne Yuli da watan Agusta. A kudancin yankin a wannan lokaci na shekara da ma'aunin zafi da sanyio ne a matakin -18 ° C. A arewacin saukad da kasa -28 ° C.

A kan tudu ko da colder. Alamomi -50 ° C ba nadiri. Warming kawo a wadannan latitudes Nordic iska. Narke ya auku a hunturu kakar, wanda yana daga Disamba zuwa Fabrairu. A wannan lokaci, da yawan zafin jiki dabam a cikin kewayon -8 ... -16 ° C. Ocean igiyoyin iya zafi da ruwa har zuwa -1,5 ° C.

kewayawa kakar da dama a kan wadannan watanni. Amundsen teku surface aka rufe da rugujewa icebergs, tsakanin wanda da kafa rami a kankara. All uku daga gare su:

• daya a cikin Bay na Russell.
• biyu a yankin na Thwaites gleiser.

Matsakaicin yanki samuwa ga motsi, daga jirgi ne 55 000 murabba'in kilomita. Ruwa a cikinsa dumama zuwa 0 ° C. Duk da haka, shi cools hanzari. Wannan shi ne saboda cewa da rugujewa kankara floes rufe da bude yanki na narke ruwa.

The mazaunan arewa

M kankara cliffs protruding sama da daskararre abyss, ze m. Amma wannan ba shine al'amarin ba. A cikin ruwan Amundsen Sea an samu kifi iyali nototheniids. Rayuwa arewa penguins da albatrosses. Hange like cewa bask a cikin haskoki na rana a kan wani sanyi teku kankara floes.

Da ake samu a wadannan wurare, damisa like, Whales, like, Whales da dabbobin ruwa, wanda ciyar a kan naman. Fi kusa da bakinta daidai takwas-mita Whale.

matsalolin muhalli

Fiye da shekaru goma, masana kimiyya suna kara ƙararrawa, ya ce game da matsananci narkewa Antarctic kankara. A cewar bayanai samu daga tauraron dan adam, ƙasa line, kiwon da iyaka tsakanin ruwa da kuma ƙasar ɓangare na tafki kullum rage. Wannan yadda a yau dubi hoto Amundsen Sea.

Kawai goma shekaru ta riƙi wani talatin kilomita cikin Antarctica. Idan muka kwatanta da kudi na raguwa a wannan yanki tun 1973, da alamomi, da shi ya karu da kusan 80%. Yana canza ga muni da tashin zane na kankara talakawa. Yanzu ma'aunai nuna cewa wani lokaci na watanni goma sha biyu Nordic latitud rasa har zuwa biliyan 160 ton na daskararre ruwa. Wannan shi ne na uku fiye da a shekara ta 2011.