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2022-2-13 07:42| å‘布者: Mary| 查看: 2561| 评论: 0

摘è¦: ???????”????”???????????? ???(Antarctica)????????????????????????????????????????????1400?????. ????????????? ...
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???(Antarctica)????????????????????????????????????????????1400???????????????????????????98%??????????2??????????????????-63????????-89.2?, ????????????????90????70%???????????????????????60??

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?????????????????????????????????????????????????????????????????????????????????????????????????????29?????????70???????1985?????????????4???????????????????????????????????????????????????????????????????????????????, ?????????????
 
??????(Neoproterozoic, 5.5??)???????????(Gondwana, ??????)????????????????????????????????. ?????????(?2???)?, ???????????????????????????????(Late Paleogene), ?????????????????????????????????(Drake Passage). ??1991?Miller?????????????????????????????(Early Oligocene, ?3,390 - 3,500???(K. Miller??Unlocking the Ice House: Oligocene-Miocene oxygen isotopes, eustasy and margin erosion?1991, JGR vol. 96, no. B4). ???????????(Antarctic Circumpolar Circulation, ?????”ACC”)?????. ??1,800????????(Early Miocene)???????????????????????
 
???3,390???????????????. ???????????????????. ?????????????/???????(Late Eocene-Early Oligocene Extinction), ??“Grande Coupure”, ??“???”). ??????????????????????????????(Ungulates)?????(Condylarthra), ?????(Perissodactyla)? ???(Artiodactyla)?????(Primates)???????. ????????????????????????????(Bolide)??????(Siberia)?????????(Chesapeake)?????, ?????????????
 
?????????????17,970??. ????(Waddell Sea)??????(Ross Sea)???????????, ????????????????????. ??????????(Transantarctic Mountains)???. ???????????????????????????????????????????????????????????????
 
?????, ????(Amundsen Sea)???????????????????????120 ??, ???????192,000?????????????????, ???4??, ????(Grounding Line)???800?1,200 ???. ???????????? (WAIS) ?????WAIS????3,435,000????. ????????????????????????????????). ???????????????????????????1/3???, ???????????. ??????????????????????????????????????????
 
??????2021???????????AGU21)????????????????????????????????????. ???????????????????????????(Crevasses). ?????“????????????????????????????????????????. ????????????????”. ?????????????????????????65??, ??????????????4%??. ??????????????????????. “?????”??????????????????????????????. ?????????(Pine Island)???????????(Dotson Glacier)????????????????3.048?, ???????????????????????????????????????, ???????. ????????????????????????????????????????: “????(Doomsday Glacier)”?
 
????????, ??????, ????????????? (Isostatic Rebound), ??????(Isostacy/Isostatic Equilibrium). ???????????????????????, ???????????????“??”. ???????????????????????2021??????????????????????. ????????????????????????????????
 
????????????????????????2018????$5,000????????????????????ITGC????(International Thwaites Glacier Collaboration). ?ITGC????????8?????, ????????????????????, ??, ???????????????. ???????????(NASA)??????????????????????????
 
???????Erin Pettit??????????????????????????????????TARSAN??(Thwaites-Amundsen Regional Survey and Network). ??????????????????????????????????????????????
 
2021??Pettit???????????(AGU21)?????????????????????. Pettit??????????????????????
 
1. ?????????. ???, ????2004???????????(Seamount)?????????(??)????????????????????????????????????????????????????????????????????????????. ????????????????????????????????????????
2. ?????????????????????????????????
3. ?????????????
 
Pettit????????????????2030??????(?????)?

Erin Pettit????????????2021,AGU21?????
 
?????????(NASA)?2020??????????????????????????????????300?????40????????140????. 2020?1????????????????????????????????300??????????????????????????. ??????????????????500????. ????????????????????????4%???????????????????????????????????????????????
 
????????????????????????????????????????. “????”??????????????2?????(Temperatures at a Florida-Size Glacier in Antarctica Alarm Scientists: The New York Times, 2020 vol. 1, no. 29)?
 
????????????70???????????????1992?2017??????????0.6?0.8???????. ????90????????????100???. 2021?4????Gothenburg???Anna Wahlin??AUV?????????????????????????(“Science Advances, 2021, vol. 7, no. 15”. ???). ??Wahlin???, ???????0.8??(Inflow 0.8TW)????????????????????3??(T3)???????????85??(850??). “?????”???????????????500??. ??Rob Larter 2022?1?26???????????????????????????????????

Wahlin???????????. ?????????????????????????????????????. ????????????????????????????????????????????????????. ?????????????????????. ????(Pine Island Trough)?????????????????????????????. Outflow = ????Ice Melange = ????Eastern Ice Shelf = ?????Basal meltwater added = ????????Mixing = ???Ice motion = ??????

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