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| 1 | Advancing the understanding of variations of Arctic sea ice optical and thermal behaviors through an international research and mobility project显示文摘In recent decades, significant changes of Arctic sea ice have taken place. These changes are expected to influence the surface energy balance of the ice-covered Arctic Ocean. To quantify this energy balance and to increase our understanding of mechanisms leading to observed changes in the Arctic sea ice, the project 'Advancing Modelling and Observing solar Radiation of Arctic sea ice—understanding changes and processes(AMORA)' was initiated and conducted from 2009 to 2013. AMORA was funded and organized under a frame of Norway-China bilateral collaboration program with partners from Finland, Germany, and the USA. The primary goal of the project was achieved by developing an autonomous spectral radiation buoy, deploying it on drifting sea ice close to the North Pole, and receiving a high-resolution time series of spectral radiation over and under sea ice from spring(before melt onset) to autumn(after freeze-up) 2012. Beyond this, in-situ sea ice data were collected during several field campaigns and simulations of snow and sea ice thermodynamics were performed. More autonomous measurements are available through deployments of sea ice mass balance buoys. These new observational data along with numerical model studies are helping us to better understand the key thermodynamic processes of Arctic sea ice and changes in polar climate. A strong scientific, but also cultural exchange between Norway, China, and the partners from the USA and Europe initiated new collaborations in Arctic reseach. | Marcel Nicolaus Caixin Wang Sebastian Gerland LI Na LI Zhijun Bin Cheng Don K.Perovich Mats A.Granskog SHI Liqiong LEI Ruibo LI Qun LU Peng | 2015 | Advances in Polar Science2015，26，2： | 0 |
| 2 | 北极海冰厚度的热力学和动力学影响因素研究评述显示文摘全球变化背景下,在过去的40年中,北极海冰范围快速减少,厚度显著变薄,同时多年冰向一年冰转化,这对区域乃至全球气候系统具有重要影响。海冰厚度作为气候变化的指示器,在大气-海冰-海洋之间的物质和能量交换过程中起着重要作用。本文通过综述国内外北极海冰厚度影响因子的研究进展,对影响北极海冰厚度的热力学和动力学过程进行了梳理和总结。在热力学方面,海冰厚度会受到大气-海冰和海冰-海洋两个界面处的热通量影响,其中,大气-海冰热力学过程的影响因素包括冰面特征、气温、水汽、降雨/降雪和云量等,主要通过海冰表面辐射收支和湍流热交换(感热和潜热)产生影响;而海冰-海洋界面处的热通量作为海冰厚度的重要影响因素,主要受太阳辐射对上层海洋的加热、风应力导致的垂向混合以及中低纬暖流输送的影响。在动力学方面,海冰厚度变化主要通过风和海流的共同驱动引起海冰输运和海冰的形变。大尺度环流异常也会通过大气-海冰-海洋相互作用对北极冰厚的热力学和动力学过程产生显著影响。 | 王昀 李雪薇 王今菲 于乐江 杨清华 | 2023 | 极地研究2023，35，1： | 0 |
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