FormationWaxbarashada dugsiga sare iyo dugsiyada

Badda Amundsen: cilmi dhul, cimilada, dubato

Biyihii waqooyi ee Badweynta Pacific hal dhinac isku wareejiyey by glaciers, oo dhinaca kale ah - xeebta galbeed ee Jacaylku. dusha oo dhan waa la daboolay baraf a kaydka cilmaani ah.

Ku xiga in ay Weeraray galay jirkiisa ku gabled Cape DART. Si bari waa jasiiradda of Thurston. Taariikhi - Meri Berd Land. Sida aad arki karto, waa in aynaan nafteena khiyaanayn, la siiyo mid ka mid ah arrin meesha Sea Amundsen ee Badweynta Pacific? Islands Hawaiian waa in qayb ka mid ah gebi ahaanba kala duwan, iyo sidoo kale oo dhan Meelaha dalxiiska caanka ah ee xeebta iyo fasax meelaha la.

sifooyinka dhulka ee

Pool xuduud la qaybaha kale ee waqooyiga ee badda, sida: Badda Bellingshausen ah iyo Ross ah. Its meesha waa ka badan 98,000 kiiloomitir oo laba jibbaaran, si qoto dheer celcelis ahaan in ka badan 250 mitir. gargaarka The eg qolof ah, taas oo uu leeyahay eexda yar oo dhinaca xeebaha barriga. On hababka ay u soo xerogeliyaan Dhuur raso of glaciers.

sakaraad dibadda ee shelf Sea Amundsen Badweynta Pacific ee qoto dheer ee shan boqol oo mitir. Soo jeeda si ay u dhaadhaca biyaha ka duwan, laakiin dhul waa siman, iyada oo aan dildilaac ama tallaabooyin. Oo dhererkiisu gaadho afar kiilomitir.

Tusiyaha si joogto ah waraabiyaa isbedel salinity. fiirsashada ugu badan ee chloride sodium gaadhay ee xilliga qaboobaha iyo waa 33 ppm. In July, marka barafku ee glaciers ku dhex jira oo biyo cusub ee yaraynaysaa content ee NaCl.

Exploration oo daahfurka

Magaca balli siiyey discoverer caanka ah iyo saynisyahan Roald Amundsen. Norway muddo dheer bartay gobollada Arctic of Jacaylku Nordic iyo. Oo halkan waa, in dalkii reer lamadegaanka meydka, uu safar ugu danbeysay.

Waxaan isku dayaan in ay helaan meel u dhow xeebta iyo ayaa Dzheyms Kuk, kuwaas oo soo booqday meesha qeybtii labaad ee qarnigii XVIII ah. Ugu dhow inay ku dabaashaan si waynaha maamula qalada bi'iyo North American "Palmer" ee qaab dhismeedka of duulaan ku Antarctic 1993.

Ilaa maantadan la joogo, warbixin ku saabsan Badda Amundsen ay ku yar yihiin oo ay iska hor imanayaan. Inkastoo horumarinta teknoolajiyada si ay u gaaraan bangiga ka soo horjeeda ayaa ilaa hadda cidna ku guulaysteen. dabaasha Its waxaa loo arkaa ugu daran oo dhowaan karin.

xeebta waa raasamaal ah blocks weyn oo baraf ah. Waxay hadda ka dibna waxaa loo bedelay precipices hoos. Meesha biyihii Badda Amundsen waa gaashaan dabiiciga ah ee dalka Antarctic. Waxa uu si toos ah lug ku formation of icebergs. Sannad kasta gobolka soo saaray 250 kiiloomitir cubic baraf.

cimilada

balli ku yaal boqortooyada cimilada Antarctic. Hawada u sameeyaan tiro, soo socda ka soo jeeda barriga. biyo ay leedahay isgaarsiinta xoogan kula hadda badda. heerkulka ugu hooseeya ee lagu arkay bilaha xagaaga. jelly ugu waa July iyo August. In qaybta koonfureed ee gobolka wakhtigan ee sannadka heerkulbeegga waa heerka ugu of -18 ° C. In dhibcood waqooyiga hoos ku -28 ° C.

On xeebta xataa qabow. Tilmaamayaasha -50 ° C ma aha wax aan caadi ahayn. Kulaalaya keeno latitudes kuwaas oo dabayl Nordic. Dhalaali dhacdaa xilli jiilaalka, kaas oo ku dhammaada ka December si February. Wakhtigan, heerkulka kala duwan ee kala duwan ee -8 ... -16 ° C. hadda Ocean kululeeyo kartaa biyo ah si ay -1,5 ° C. ah

xilli navigation ku dhacaa bilood kuwan. dusha badda Amundsen daboolo icebergs timi, ee u dhexeeya oo godka la aasaasay ee barafka. Dhamaan seddex ka mid ah:

  • mid ka mid ah ee Bay ee Russell,
  • laba degaanka ee Thwaites sitoos.

Meesha ugu badan ee diyaar u ah dhaqdhaqaaqa maraakiibta waa 55 000 oo kiiloomitir oo laba jibbaaran. Biyaha waxa ku jira is kululeeyo si 0 ° C. Si kastaba ha ahaatee, waxa uu si degdeg ah uu qaboobo. Tan waxa u sabab xaqiiqada ah in ku timi floes baraf dabooli aagga furay oo biyo ah dhalaalid.

The deggan oo xagga woqooyi

qarar baraf qabow ridday yaamayska ku xusan la qaboojiyey, u muuqdaan kuwo aan Noolayn. Laakiin tani ma aha kiiska. In biyihii Badda Amundsen waxaa laga helaa nototheniids qoyska kalluunka. Nolosha pingvin waqooyiga iyo albatrosses. shaabadood arkay in bask ee rays ee qorraxda on a floes qabow baraf badda.

Waxaa laga helaa, kuwaas oo meelaha, shaabadood shabeel, nibiriyada badda, shaabadihiisa, nibiriyada badda oo hoonbarrooyinka, kaas oo ay ku quudiyaan on jidhka. Dhow xeebaha uu ku habboonyahay nibiriga sideed mitir.

dhibaatooyinka deegaanka

In ka badan tobankii sano ee la soo dhaafay, saynisyahano waxaa qaylodhaan, oo wuxuu ku yidhi ku saabsan xaabo uu xad-dhaaf ah oo baraf Antarctic. Sida laga soo xigtay warbixin ka soo satalayt khadka, dhulka helay, ka dhigan soohdinta u dhaxaysa biyaha iyo qayb ka mid ah dalka reer kaydka si joogto ah hoos. Taasi waa sida ay maanta eegaya sawirka Sea Amundsen.

toban sano oo kaliya ayay kaxaysay a soddon kiiloomitir galay Jacaylku. Haddii aan is barbar dhig heerka of hoos aagga tan iyo 1973, tilmaamo, waxa kordhay 80%. Waxay beddeleen jaantuska ku xumaato oo mooshin ah tacsida baraf. cabir ah ee hadda ayaa tilmaamaya in muddo laba iyo toban bilood loolka Nordic lumin ilaa 160 bilyan oo tan oo dareere ah la qaboojiyey. Tani waa saddex meelood meel ka sii badan sannadkii 2011.

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