Evidence of high-elevation amplification versus Arctic amplification
نویسندگان
چکیده
منابع مشابه
Evidence of high-elevation amplification versus Arctic amplification
Elevation-dependent warming in high-elevation regions and Arctic amplification are of tremendous interest to many scientists who are engaged in studies in climate change. Here, using annual mean temperatures from 2781 global stations for the 1961-2010 period, we find that the warming for the world's high-elevation stations (>500 m above sea level) is clearly stronger than their low-elevation co...
متن کاملRevisiting the evidence linking Arctic Amplification
Previous studies have suggested that Arctic Amplification has caused planetary-scale 3 waves to elongate meridionally and slowdown , resulting in more frequent blocking pat-4 terns and extreme weather. Here, trends in the meridional extent of atmospheric waves 5 over North America and the North Atlantic are investigated in three reanalyses, and it is 6 demonstrated that previously reported posi...
متن کاملArctic tropospheric warming amplification?
Relative rates of temperature change between the troposphere and surface, and the mechanisms that produce these changes, have long been a contentious issue. Graversen et al., predicated upon the ERA-40 reanalysis, report polar tropospheric amplification of surface warming and attempt to explain this finding dynamically. Here we show (1) that data from satellites and weather balloons indicate th...
متن کاملEvidence linking Arctic amplification to extreme weather in mid-latitudes
[1] Arctic amplification (AA) – the observed enhanced warming in high northern latitudes relative to the northern hemisphere – is evident in lower-tropospheric temperatures and in 1000-to-500 hPa thicknesses. Daily fields of 500 hPa heights from the National Centers for Environmental Prediction Reanalysis are analyzed over N. America and the N. Atlantic to assess changes in north-south (Rossby)...
متن کاملThe emergence of surface-based Arctic amplification
Rises in surface and lower troposphere air temperatures through the 21st century are projected to be especially pronounced over the Arctic Ocean during the cold season. This Arctic amplification is largely driven by loss of the sea ice cover, allowing for strong heat transfers from the ocean to the atmosphere. Consistent with observed reductions in sea ice extent, fields from both the NCEP/NCAR...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2016
ISSN: 2045-2322
DOI: 10.1038/srep19219