Consideration of whether a climatic regime shift has prevented the occurrence of disastrous cold summers in northeast Eurasia since 2010 ...
<!--!introduction!--> Does a warming world, where extremely hot summers are becoming more common, mean that cold summers will never occur in the future? It is important to know whether extremely cold summers will occur, especially to determine whether crops need to be adapted to cold summers....
| Main Authors: | , , |
|---|---|
| Format: | Conference Object |
| Language: | unknown |
| Published: |
GFZ German Research Centre for Geosciences
2023
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.57757/iugg23-0664 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016812 |
| Summary: | <!--!introduction!--> Does a warming world, where extremely hot summers are becoming more common, mean that cold summers will never occur in the future? It is important to know whether extremely cold summers will occur, especially to determine whether crops need to be adapted to cold summers. Japan, which has suffered from many extremely cold summers in the past, managed these agricultural disruptions with emergency rice imports. Here, we show that, in 2010, a climate regime shift associated with the positive phase shift of the Arctic Oscillation occurred in northeast Eurasia, making the occurrence of extremely cold summers highly unlikely as long as this new regime persists. In fact, Japan has not experienced a cold summer since 2010, while extremely hot summers have been frequent. Since 2010, a double jet structure with subtropical and polar jets has strengthened, and the polar jet has meandered further north of Japan, resulting in an upper tropospheric anticyclone. This anticyclone, which extends ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
|---|