Collaborative research aboard Icebreaker Oden: ASPIRE (Amundsen Sea Polynya International Research Expedition)

该奖项由《2009年美国恢复和再投资法案》(公法111-5)资助。Amundsen Sea Polynya是该地区生产力最高的南极Polynya，在水华高峰期表现出更高的叶绿素水平，与研究得更好的Ross Sea Polynya生态系统相比，具有更大的年际变异性。多尼亚可能是理解极地未来的关键，因为随着人为变暖，极地的范围预计会增加。该项目将研究1)作为气候强迫的函数的阿蒙森海波利尼亚的铁的来源，2)与铁供应和混合层深度有关的浮游植物群落结构，3)生物泵向深度输送碳的效率，以及4)作为气候和微量营养素强迫的函数的碳的净通量。这项研究还将把阿蒙森海的结果与帕尔默LTER和罗斯海现有的数据合成和建模工作进行比较。该项目将1)在美国和瑞典研究人员之间建立密切的科学合作；2)调查具有广泛社会意义的气候变化影响；3)培训新的研究人员；4)鼓励代表性不足的群体参与研究科学；5)通过科学文献和公共宣传，包括与NSF支持的PolarTREC和COSEE K-12教师的密切互动，广泛传播成果。

AbstractThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The Amundsen Sea Polynya is areally the most productive Antarctic polynya, exhibits higher chlorophyll levels during peak bloom and greater interannual variability than the better-studied Ross Sea Polynya ecosystem. Polynyas may be the key to understanding the future of polar regions as their extent is expected to increase with anthropogenic warming. The project will examine 1) sources of iron to the Amundsen Sea Polynya as a function of climate forcing, 2) phytoplankton community structure in relation to iron supply and mixed-layer depths, 3) the efficiency of the biological pump of carbon to depth and 4) the net flux of carbon as a function of climate and micronutrient forcing. The research also will compare results for the Amundsen Sea to existing data synthesis and modeling efforts for the Palmer LTER and Ross Sea. The project will 1) build close scientific collaborations between US and Swedish researchers; 2) investigate climate change implications with broad societal relevance; 3) train new researchers; 4) encourage participation in research science by underrepresented groups, and 5) involve broad dissemination of results via scientific literature and public outreach, including close interactions with NSF-supported PolarTrec and COSEE K-12 teachers.