| DOI: | 10.2172/1191124
|
| 报告号: | LA-UR--15-24986
|
| 报告题名: | Atmospheric Response to Weddell Sea Open-Ocean Polynya |
| 作者: | Hodos, Travis; Weijer, Wilbert
|
| 出版年: | 2015
|
| 发表日期: | 2015-07-02
|
| 总页数: | 11
|
| 国家: | 美国
|
| 语种: | 英语
|
| 英文关键词: | Planetary Sciences
; Weddell Sea
; Polynya
|
| 中文主题词: | 海平面气压
; 热通量
; 潮湿
; 对流
; 云
; 高温
; 传导
|
| 主题词: | SEA LEVEL PRESSURE
; HEAT FLUX
; HUMIDITY
; CONVECTION
; CLOUDS
; HEAT
; CONDUCTION
|
| 英文摘要: | The atmospheric conditions associated with the rare Weddell Sea open ocean polynya are investigated. The polynya has not been seen since 1976, so data on the event is scarce. The CESM high resolution model is used to investigate multiple atmospheric variables. We analyze three years of polynyas, which are also compared to three years without a polynya. The surface temperature, sensible heat flux, latent heat flux, humidity, average wind speed, precipitation, longwave flux, and shortwave flux all increased over the polynya. The sensible heat flux had a higher magnitude than the latent heat flux because conduction and convection were the primary drivers of heat flux. A combination of increased latent heat flux and humidity led to an increase in precipitation. Increased longwave downwelling flux over the polynya indicated the presence of clouds over the polynya. Lastly, the sea level pressure was consistently lower over the polynya because of the presence of a thermal low generated by thermally driven convective updrafts. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1191124
|
| Citation statistics: |
|
| 资源类型: | 研究报告
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41829
|
| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
|
| File Name/ File Size |
Content Type |
Version |
Access |
License |
|
|---|
| 1191124.pdf（1236KB） | 研究报告 | -- | 开放获取 | | View
Download
|
|
| Recommended Citation: | |
Hodos, Travis,Weijer, Wilbert. Atmospheric Response to Weddell Sea Open-Ocean Polynya. 2015-01-01.
|
|
|