Improvement in simulation of Eurasian winter climate variability with a realistic Arctic sea ice condition in an atmospheric GCM
Bibliographic Data
| ID | 15545457 |
|---|---|
| Authors | Young‐Kwon Lim (0000-0001-6735-5461, Goddard Space Flight Center), Young-Kwon Lim, Yoo‐Geun Ham (0000-0002-0236-6968, Goddard Space Flight Center, corresponding author), Jee‐Hoon Jeong (0000-0002-3358-3949, Chonnam National University), Jong‐Seong Kug (0000-0003-2251-2579, Korea Institute of Ocean Science and Technology) |
| Year | 2012 |
| Volume | 7 |
| Issue | 4 |
| Pages | 044041-044041 |
| Publication date | 2012-12-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/7/4/044041 |
| OpenAlex | W2028768060 |
| Language | EN |
| Citations received | 4 |
| References cited | 19 |
The present study investigates how much a realistic Arctic sea ice condition can contribute to improve simulation of the winter climate variation over the Eurasia region. Model experiments are set up using different sea ice boundary conditions over the past 24 years (i.e., 1988-2011). One is an atmospheric model inter-comparison (AMIP) type of run forced with observed sea-surface temperature (SST), sea ice, and greenhouse gases (referred to as Exp RSI), and the other is the same as Exp RSI except for the sea ice forcing, which is a repeating climatological annual cycle (referred to as Exp CSI). Results show that Exp RSI produces the observed dominant pattern of Eurasian winter temperatures and their interannual variation better than Exp CSI (correlation difference up to approx. 0.3). Exp RSI captures the observed strong relationship between the sea ice concentration near the Barents and Kara seas and the temperature anomaly across Eurasia, including northeastern Asia, which is not well captured in Exp CSI. Lagged atmospheric responses to sea ice retreat are examined using observations to understand atmospheric processes for the Eurasian cooling response including the Arctic temperature increase, sea-level pressure increase, upper-level jet weakening and cold air outbreak toward the mid-latitude. The reproducibility of these lagged responses by Exp RSI is also evaluated
Antarctic sea ice · Arctic · Arctic ice pack · Arctic sea ice decline · Atmospheric sciences · Climate change · Climate model · Climatology · Cryosphere · Forcing (mathematics · GCM transcription factors · General Circulation Model · Sea ice · Sea ice concentration · Sea ice thickness · Arctic and Antarctic ice dynamics · Climate change and permafrost · Climate variability and models · Environmental Science · Geology · Oceanography
The impact of Arctic warming on the midlatitude jet‐stream
Influence of Arctic sea ice on European summer precipitation
Spring–summer albedo variations of Antarctic sea ice from 1982 to 2009
Nonlinear winter atmospheric circulation response to Arctic sea ice concentration anomalies for different periods during 1966–2012
| Citations per year | 0.31 |
|---|---|
| Citation span | 2013 - 2015 (3) |
| Highly cited | No |