nzvimbo inotonhora zvikuru panyika

Vesainzi vagara vachiziva kuti tembiricha yakadzikira yati yamboyerwa Panyika yaive pachando chakaoma nechando kuEast Antarctica, pedyo neSouth Pole. Asi munguva pfupi yapfuura vakawana kuti tembiricha ikoko inogona kuderera kunyange kuderera kupfuura iya yakayerwa kare.

Muna 2013, kuongororwa kwedhata resetiraiti kwakaratidza homwe dzakapararira dzemhepo inotonhora zvakanyanya paEast Antarctic Plateau pakati peArgos Dome neDom Fuji - tembiricha yakadzikira kusvika 135 degrees Fahrenheit (zero 93 degrees Celsius).

Zvakadaro, ongororo itsva yedata imwe chete iyi inoratidza kuti pasi pemamiriro ezvinhu akanaka, tembiricha idzi dzinogona kudzika kusvika pa148 degrees Fahrenheit (minus 100 degrees Celsius), ingangove tembiricha inotonhora zvakanyanya inogona kusvika kuPasi, sekureva kwevaongorori vepaNew study.

MuAntarctica yakafukidzwa neaizi, avhareji yetembiricha mukati memwedzi yechando ine rima inosvika minus 30 degrees Fahrenheit (minus 34.4 degrees Celsius). Pachidzidzo chitsva ichi, masayendisiti akaongorora data yakaunganidzwa muna Chikunguru naNyamavhuvhu pakati pa2004 na2016. Kupisa kwakayerwa mumabheseni madiki eEast Antarctic Plateau pedyo neSouth Pole, pahupamhi hwemamita 12 (467 metres) Vanyori vezvidzidzo vakashuma kuti hutsva hutsva hwekupisa hutsva hwakanga hwakapararira, huchionekwa munzvimbo dze3 munzvimbo dzakapararira dzakapararira, "nzvimbo yakafara" yebani.

Munguva yechando chechando, kune nguva yakareba yenguva ine denga rakajeka uye mhepo isina simba. Pamwe chete - chero bedzi mamiriro ezvinhu aya achienderera mberi - vanogona kutonhora pamusoro pechando uye kuderera kwekushisa, maererano nekudzidza.

Muna 2013 uye muchidzidzo chitsva, vaongorori vakayera zviyero zvakafanana zvetembiricha setiraiti nedata rakaunganidzwa kubva kuzviteshi zvemamiriro ekunze pamusoro peAntarctica. Pakuongorora kutsva, vaongorori vakatarisa patsva data yemamiriro ekunze. Panguva ino, vakadzidzawo kuoma kwemuchadenga, sezvo kuoma kwemhepo kunoita kuti chifukidziro chechando chirase kupisa nekukurumidza, anodaro munyori anotungamira wekudzidza Ted Schampos, nyanzvi yezvesainzi yepamusoro paNational Snow uye Ice Data Center paYunivhesiti yeColorado Boulder.

Nekuvandudzwa uku, vakagadzirisa zvakare data resatellite uye vakawana chiyero chechokwadi chetembiricha inopisa mapfupa muhomwe idzo dziri pedyo neSouth Pole. Ongororo iyi yakaona kuti zvigamba pabani izvo zvaimbozivikanwa kuti zvinotonhora zvakanyanya paNyika zvaive zvichiri kutonhora - kungopfuura ipapo, ne9 degrees Fahrenheit (5 degrees Celsius).

Iyo itsva rekodhi tembiricha yakaderera ingangove inotonhora sezvainogona kurova Pasi. "Inofanira kutonhora zvakanyanya uye yakaoma kwazvo kwemazuva akati wandei kuti mazinga akaomarara abude," Scampos akatsanangura.

"Pane muganhu wekuti mamiriro ezvinhu anogara kwenguva yakareba sei kuti abvumire kutonhora kusvika kune yakadzika kwazvo tembiricha, uye huwandu hwakanyanya hwekupisa hwaunogona kuwana nemumhepo, nekuti mhute yemvura inofanirwa kunge isipo kuitira kuburitsa kupisa. kubva pamusoro pamatembiricha aya,”