搜索结果: 1-15 共查到“知识库 海洋气象学”相关记录319条 . 查询时间(3.093 秒)
中亚是“一带一路”的重要节点，国民经济以农牧业为主。近10多年来中亚地区冬季频发持续性极端低温事件，给当地造成严重灾害。持续性极端低温事件的产生往往与中高纬大气季节内振荡有关，研究中亚地区冬季气温季节内变率及其形成机理具有重要意义。
热带印度洋和大西洋海温的变化及机制是目前国际气候研究的热点。已有的研究表明，北印度洋（North Indian Ocean, NIO）和热带北大西洋（tropical North Atlantic, TNA）海温的变化，会通过海气相互作用影响西北太平洋地区的环流系统，从而对东亚天气气候造成显著影响。
海洋生物-物理过程的交互作用是当前海洋研究的热点话题，海洋中的浮游植物不仅是被动的受动力过程影响，还可以改变辐射加热的垂直分布，进而影响海温、环流、海水密度和混合层深度等。西北太平洋黑潮延伸体附近的混合层深度在三月份达到最深，形成垂向均一的水体，称为模态水。混合层于四月份迅速变浅，这些垂向均一的水体随东南向的Sverdrup流潜沉到温跃层。模态水能记忆冬季海水特征，可能会在次年冬天重新进入混合层。...
SB: 迟滞的海洋慢响应主导未来热带降水变化（图）
海洋慢响应 热带 降水 未来
2023/2/14
工业革命以来，化石燃料的大规模使用，导致具有温室效应的二氧化碳被大量排放至大气中，引起全球气候变暖。目前大量研究聚焦于二氧化碳浓度上升期的区域气候变化，然而在未来碳中和愿景实现后，当二氧化碳浓度开始下降时，已经变化的气候会原路返回吗？热带降水作为全球能量和水份循环的重要环节，其空间分布的变化通过大气环流影响着全球的区域气候。它在二氧化碳浓度上升和下降期的变化是否一致？背后是什么过程主导其在上升和下...
Spatial Planning in Coastal Regions:Facing the Impact of Climate Change
Spatial Planning Coastal Regions Climate Change
2016/1/22
This publication aim at satisfying the core objectives of the Working Group 8.4, bringing together technical issues and problem solving to aid land professionals both practitioners and academics. Ital...
Fisheries,El Niño-Southern Oscillation and Upper Ocean Temperature Records:An Eastern Pacific Example
Fisheries El Nino-Southern Oscillation Upper Ocean Temperature Records Eastern Pacific Example
2015/8/19
It is often recounted that the collapse of the Peruvian anchoveta fishery in the early 1970s was a direct consequence of the El Niño of 1972–73. Comparison of time series of upper-ocean thermal d...
Advances in Sea-Ice Research Based on Remotely Sensed Passive Microwave Data
Advances Sea-Ice Research Remotely Sensed Passive Microwave Data
2015/8/19
Sea-ice cover is the most significant feature of the polar ocean environment. Annual cycles of sea-ice cover and their interannual variations contribute significantly to changes in surface reflectivit...
Deep Convective Plumes in the Ocean
The mesoscale ocean circulation deep convection the atmosphere
2015/8/17
Deep convection is a process in which the mesoscale ocean circulation and atmospheric forcing work together to weaken the ambient stratification and to cause surface waters to sink to great depths wit...
Understanding how climate varies in time is a central issue of climate research. Of particular interest are climate variations which occur within the human lifespan, say over 5- to 100-y time scales. ...
Regional Policy Development on Climate and Sea Level Changes in the Pacific Region
Climate and Sea Level Changes Pacific Region
2015/8/14
It is a great challenge to convert scientific knowledge of climate and sea level change, to information that is useful to policy makers. This process is especially important in the South Pacific where...
Radar returns from the ocean surface have been observed since the earliest days of radar. They were characterized as "clutter" because they often obscured targets, such as ships or aircraft. However, ...
The concept of using high-frequency (HF) radio pulses to remotely probe the ocean surface has been around for decades. In this paper and the companion paper by Teague et al. (1997) we strive to introd...
Synoptic Measurement of Dynamic Oceanic Features
Synoptic Measurement Dynamic Oceanic Features
2015/8/10
Shore-based radar systems operating at the high-frequency (HF) mode are becoming a widely used and accepted tool for measuring surface currents for coastal oceanographic research. Their history, theor...
Mapping Surface Currents in Monterey Bay With CODAR-Type HF Radar
Mapping Surface Currents Monterey Bay CODAR-Type HF Radar
2015/8/10
High-frequency (HF) radar measurements have been employed around Monterey Bay, CA, to measure ocean surface currents since February 1992. The first array consisted of two older-generation CODAR instru...
Internal Wave-Driven Surface Currents From HF Radar
Internal Wave-Driven Surface Currents HF Radar
2015/8/10
Surface current observations from high-frequency (HF) radar have revealed that not only are the low-frequency and tidal currents resolved by the measurement, higher-frequency motions are also containe...