Ua ʻike ka poʻe ʻepekema i kahi ʻāina nui, ʻike ʻole ʻia o nā puʻu a me nā awāwa i hana ʻia e nā muliwai kahiko ma lalo o ka hau Antarctic, i hau no nā miliona mau makahiki. ʻO kēia ākea huna, ʻoi aku ka nui ma mua o Pelekiuma, ua hoʻopilikia ʻole ʻia no nā makahiki 34 miliona akā ke alo nei i ka pilikia o ka ʻike ma muli o hoʻomehana honua i hoʻokumu ʻia e ke kanaka, e like me nā mea noiʻi Pelekane a me ʻAmelika.
ʻO Stewart Jamieson, he kanaka glaciologist mai ke Kulanui ʻo Durham, ʻo ia ka ʻāina i ʻike ʻole ʻia i ʻike ʻole ʻia e kekahi ma mua.
"ʻO ka mea hoihoi, ʻo ia ka mea e peʻe ana ma laila i ka ʻike maka," i hoʻohui ʻia ai ʻo Jamieson, me ka ʻōlelo ʻana ʻaʻole i hoʻohana nā mea noiʻi i ka ʻikepili hou, he ala hou wale nō. ʻO ka ʻāina ma lalo o ka East Antarctic Ice Sheet ʻaʻole i ʻike maikaʻi ʻia ma mua o ka ʻili o Mars, wahi a Jamieson.
No ka ʻimi ʻana i ka ʻāina huna ma lalo o ka hau Antarctic no nā miliona makahiki, hoʻohana maʻamau ka poʻe ʻepekema i ke kani leo radio, kahi e hoʻouna ai nā mokulele i nā nalu lekiō i ka hau a nānā i nā leo. Eia nō naʻe, ʻo ka uhi ʻana i ka ākea nui o Antarctica me kēia ʻano hana he paʻakikī nui. Akā, ua hoʻohana nā mea noiʻi i nā kiʻi ukali e ʻike i nā awāwa a me nā kualono i ʻoi aku ma mua o ʻelua mau kilomita ma lalo o ka hau. ʻO ka ʻili hau "undulating" he "kiʻi ʻuhane" e hūnā i kēia mau hiʻohiʻona ʻokoʻa ma lalo.
Ma ka hoʻohui ʻana i nā kiʻi ukali me ka ʻikepili kani leo leo, ua hōʻike nā kānaka ʻepekema i kahi ʻāina me nā awāwa hohonu i hana ʻia i ka muliwai a me nā puʻu ʻino, e like me kekahi ma ka ʻili o ka Honua.
Ua hoʻohālikelike ʻo Stewart Jamieson i ka ʻāina hou i ʻike ʻia ma lalo o ka hau Antarctic me ka nānā ʻana ma waho o ka puka makani mokulele ma kahi mauna, e like me ka ʻāina ʻo Snowdonia ma ka ʻākau o Wales. Ua noho mua ʻia kēia ʻāpana he 32,000 kilomika square e nā lāʻau, nā ululāʻau, a me nā holoholona like ʻole.
'Aka, hele mai ka hau, a ua "paʻa i ka manawa" ', wahi a Jamieson.
ʻO ka manawa kūpono mai ka hiki ʻana o ka lā i kēia ʻāina huna he mea paʻakikī ke ʻike, akā maopopo ka poʻe ʻepekema ʻo ia ma kahi o 14 miliona mau makahiki. ʻO ka manaʻo aʻoaʻo a Stewart Jamieson ʻo ia ka mea i hōʻike hope ʻia ma mua o 34 miliona mau makahiki i hala i ka wā i maloʻo mua ai ʻo Antarctica.
Ma waho aʻe o kēia ʻike, ua ʻike mua kekahi o nā mea noiʻi i kahi loko e like me ke kūlanakauhale ma lalo o ka hau Antarctic. Manaʻo lākou he nui aʻe nā ʻāina kahiko e kali nei e wehe ʻia.
Ua hōʻike ka poʻe kākau o ka noiʻi i ka hopohopo e hiki i ka hoʻomehana honua ke hoʻoweliweli i kēia ʻāina hou i hōʻike ʻia, no ka mea ke hele nei nā kūlana o kēia manawa i nā mea i ola 14 a 34 miliona mau makahiki aku nei i ka wā i ʻoi aku ka mahana o ka wela ma mua o kēia lā. Eia nō naʻe, he mea nui e hoʻomaopopo ʻia aia kēia ʻāina he mau haneli mau kilomita i uka mai ka lihi o ka hau, no laila, hiki i ka ʻike ʻia ʻana he mea mamao loa.
Aia ka ʻāina hou i ʻike ʻia he mau haneli mau kilomita i uka mai ka lihi o ka hau, ʻo ia hoʻi, mamao loa ka ʻike ʻana. ʻOiai nā hanana hoʻomehana i hala, e like me ka Pliocene manawa 3 a 4.5 miliona mau makahiki i hala aku nei, ʻaʻole i hōʻike ʻia, aia ka manaʻolana. Eia nō naʻe, ʻaʻole maopopo i ka wā e hiki mai ai kahi "holo holo" o ka heheʻe, inā he, e like me Jamieson.
Ua paʻi ʻia ke aʻo ʻana ma hope koke iho o ka hoʻopuka ʻana o nā ʻepekema i ka ʻōlelo aʻo e manaʻo ʻia ka hoʻoheheʻe ʻana o ka West Antarctic Ice Sheet e pili ana i ka wikiwiki nui i nā makahiki e hiki mai ana, ʻoiai inā e kūleʻa ana nā hoʻoikaika honua e hōʻemi i ka hoʻomehana honua.
ʻO ka West Antarctic Ice Sheet (WAIS) kekahi o nā papa hau nui ʻelua ma Antarctica, ʻo kekahi ʻo ka East Antarctic Ice Sheet.
Heluhelu "Pehea ka hoʻololi ʻana o ke aniau ma ʻEulopa e pili ana i ka mākaʻikaʻi ma nā ʻāina ʻĀkau…"
Ke piʻi nei ka mahana ma ʻEulopa ke kumu e noʻonoʻo ai ka poʻe mākaʻikaʻi i nā ʻāina ʻākau e like me Kenemaka ma ke ano he mau wahi hoomaha. Eia naʻe, ʻo ka nīnau maoli e kū mai nei - pehea ka maikaʻi o ka hoʻonui ʻia ʻana o ka mākaʻikaʻi ma muli o ka hoʻololi ʻana i ke aniau e pono ai no Denmark?
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