Southern Ocean US Clivar Workshop

0128106 Gordon该奖项将为2001年10月在哥伦比亚大学Lamont-Doherty地球观测站举行的南大洋气候尺度变化讲习班提供资助。 讲习班的任务是为美国气候变化和大气研究项目科学指导委员会编写一份文件，介绍南大洋内实现气候变化和大气研究项目目标的优先研究和持续观测活动。 提出了四个主题来帮助指导这一过程：（1）环极带内的海洋环流和翻转，包括南极环极流，中间水和亚南极模式的水生产。 (2)南极地区内的海洋环流和翻转以及区域海气通量，包括导致深海通风的过程。 (3)南大洋的大尺度变率及其与全球气候现象的关系，包括南极绕极波。 (4)海洋环流及其对二氧化碳海气分配的调节。 讲习班与会者还将审议适用于南大洋环境的新观测技术，特别是那些需要能够处理新观测平台的特殊船舶（例如自动驾驶车辆）的技术。南大洋是大洋间交换和海洋翻转的主要场所。它为大气提供热源，在很大程度上调节海冰的分布，甚至可能影响冰川冰的质量平衡。南极绕极流和“南极”沃茨的下降形成了全球海洋分层的大部分。南大洋内部的年际和低频变率与全球气候变率的模式有关。气候变化国际评估方案南南合作委员会认可召开这次研讨会，认识到南大洋显然与气候变化国际评估方案的目标有关。

0128106Gordon This award will provide funds for the support of a workshop on climate-scale variations in the Southern Ocean to be held at the Lamont-Doherty Earth Observatory of Columbia University in October 2001. The task of the workshop will be to produce a document for the US CLIVAR Scientific Steering Committee, presenting priority research and sustained observational activities within the Southern Ocean that reach Clivar objectives. Four themes are presented to help guide the process: (1) Ocean circulation and overturning within the circumpolar belt, including the Antarctic Circumpolar Current, intermediate water, and subantarctic mode water production. (2) Ocean circulation and overturning within the Antarctic zone and regional sea-airfluxes, including processes leading to ventilation of the deep ocean. (3) Large scale variability of the Southern Ocean and its relationship to global climate phenomena, including the Antarctic Circumpolar Wave. (4) Ocean circulation and its regulation of air-sea partitioning of carbon dioxide. The workshop participants will also consider new observational techniques applicable to the Southern Ocean environment, particularly those that require special ship capable for handling of new observing platforms (e.g. autonomous vehicles). The Southern Ocean is the major site of interocean exchange and ocean overturning. Itprovides a heat source for the atmosphere, regulating to a significant degree the distribution of sea ice and perhaps even affecting glacial ice mass balance. The Antarctic Circumpolar Current and descent of "antarctic" waters shape much of the global ocean stratification. Interannual and lower frequency variability within the Southern Ocean has been linked to patterns of global climate variability. The CLIVAR SSC has endorsed the convening of this workshop, recognizing that the Southern Ocean clearly has relevance to CLIVAR goals.***