ICE-SHEET;
CLIMATE-CHANGE;
GLOBAL TEMPERATURE;
VOLUME;
CONSTRAINTS;
VARIABILITY;
COLLAPSE;
IMPACT;
D O I:
10.1038/srep03461
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
During ice-age cycles, continental ice volume kept pace with slow, multi-millennial scale, changes in climate forcing. Today, rapid greenhouse gas (GHG) increases have outpaced ice-volume responses, likely committing us to > 9 m of long-term sea-level rise (SLR). We portray a context of naturally precedented SLR from geological evidence, for comparison with historical observations and future projections. This context supports SLR of up to 0.9 (1.8) m by 2100 and 2.7 (5.0) m by 2200, relative to 2000, at 68% (95%) probability. Historical SLR observations and glaciological assessments track the upper 68% limit. Hence, modern change is rapid by past interglacial standards but within the range of 'normal' processes. The upper 95% limit offers a useful low probability/high risk value. Exceedance would require conditions without natural interglacial precedents, such as catastrophic ice-sheet collapse, or activation of major East Antarctic mass loss at sustained CO2 levels above 1000 ppmv.
机构:
Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
Univ Wisconsin, Dept Geosci, Madison, WI USA
Univ Wisconsin, Ctr Climat Res, Madison, WI USAOregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
Carlson, Anders E.
;
Clark, Peter U.
论文数: 0引用数: 0
h-index: 0
机构:
Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USAOregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
机构:
CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia
Australian Bur Meteorol, Hobart, Tas 7001, Australia
CSIRO Wealth Oceans Flagship, Hobart, Tas 7001, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia
Church, John A.
;
White, Neil J.
论文数: 0引用数: 0
h-index: 0
机构:
CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia
Australian Bur Meteorol, Hobart, Tas 7001, Australia
CSIRO Wealth Oceans Flagship, Hobart, Tas 7001, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia
机构:
Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
Univ Wisconsin, Dept Geosci, Madison, WI USA
Univ Wisconsin, Ctr Climat Res, Madison, WI USAOregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
Carlson, Anders E.
;
Clark, Peter U.
论文数: 0引用数: 0
h-index: 0
机构:
Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USAOregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
机构:
CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia
Australian Bur Meteorol, Hobart, Tas 7001, Australia
CSIRO Wealth Oceans Flagship, Hobart, Tas 7001, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia
Church, John A.
;
White, Neil J.
论文数: 0引用数: 0
h-index: 0
机构:
CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia
Australian Bur Meteorol, Hobart, Tas 7001, Australia
CSIRO Wealth Oceans Flagship, Hobart, Tas 7001, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Hobart, Tas 7001, Australia