US-China Workshop on Impacts of a Changing Cryosphere on High Elevation Climate, Weather, and Aquatic Ecosystems

中美冰冻圈变化对高海拔气候、天气和水生生态系统影响研讨会

• 批准号: 1723516
• 负责人: James Elser
• 金额: $ 7.29万
• 依托单位: University of Montana
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-05-01 至 2019-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1723516&HistoricalAwards=false
• 关键词: US; China; Workshop; Impacts; Changing

This award provides travel support for US-based participants to the US-China workshop on "Impacts of a changing cryosphere on high elevation climate,weather, and aquatic ecosystems", to be held near Qinghai Lake, China in August/September 2017. Climate, weather, and aquatic ecosystems such as streams and lakes are intimately connected to each other. This is especially true in mountain regions where glaciers as well as permanent and seasonal snowpack have major effects on physical (temperature), chemical (nutrients like nitrogen and phosphorus), and biological (microbes, algae, fish) features of streams and lakes. However, mountain environments are experiencing very rapid changes in climate, even more pronounced than global averages. Since mountain regions are like humanity's "water towers", we need a better understanding of what these changing environmental conditions mean for the quantity and quality of our water supply. To best advance this understanding, scientists in different regions need to compare their findings and share their best practices of analysis and discovery. This project will support an intensive interdisciplinary workshop in which scientists, mathematicians, and engineers from the USA and China will meet to share data, develop collaborations, and make plans for further work to advance our understanding of how a changing alpine environment might affect lakes and streams and thus our water resources.Ongoing climate variation is having major physical, chemical, and biological impacts on global ecosystems. Aquatic ecosystems in mountain regions are especially impacted due to amplified temperature increases observed at high elevation and due to the sensitivity of key cryospheric components (glaciers, snowpack) to changes in temperature and precipitation. The ongoing changes in the cryosphere are widespread, complex, and affect a variety of key parameters for alpine lakes and streams such as temperature, transparency, discharge, and nutrient supply. The roles of natural variability versus external forcing in driving observed changes in snow and glacier distributions, as well as high elevation energy, water, weather, and biogeochemical cycles, need to be investigated. Documenting, understanding, and forecasting these impacts is challenging and requires broad interdisciplinary collaborations. To address these global challenges, this workshop will bring together experts in limnology, meteorology, atmospheric science, and hydrology as well as data science and mathematical modeling from both the USA and China to coordinate research, share key findings, identify major unanswered questions, and establish a network for future collaboration. This award is co-funded by the Office of International Science and Engineering, the Divisions of Earth Sciences and Atmospheric and Geospace Sciences of the GeoScience Directorate, and the Divisions of Biological Infrastructure and Environmental Biology of the BIO Directorate.

该奖项为参加将于 2017 年 8 月/9 月在中国青海湖附近举行的中美研讨会“冰冻圈变化对高海拔气候、天气和水生生态系统的影响”的美国参与者提供差旅支持。 、天气和溪流、湖泊等水生生态系统彼此密切相关。 在山区尤其如此，那里的冰川以及永久性和季节性积雪对溪流和湖泊的物理（温度）、化学（氮和磷等营养物）和生物（微生物、藻类、鱼类）特征产生重大影响。 然而，山区环境正在经历非常迅速的气候变化，甚至比全球平均水平更加明显。由于山区就像人类的“水塔”，我们需要更好地了解这些不断变化的环境条件对供水的数量和质量意味着什么。 为了最好地增进这种理解，不同地区的科学家需要比较他们的发现并分享他们的分析和发现的最佳实践。该项目将支持一个密集的跨学科研讨会，来自美国和中国的科学家、数学家和工程师将齐聚一堂，共享数据、开展合作并制定进一步工作计划，以加深我们对不断变化的高山环境如何影响湖泊和湖泊的了解。河流以及我们的水资源。持续的气候变化正在对全球生态系统产生重大的物理、化学和生物影响。由于在高海拔地区观察到温度升高加剧以及冰冻圈关键组成部分（冰川、积雪）对温度和降水变化的敏感性，山区水生生态系统尤其受到影响。冰冻圈正在发生的变化是广泛而复杂的，并影响高山湖泊和溪流的各种关键参数，如温度、透明度、流量和养分供应。需要研究自然变率与外部强迫在驱动观测到的雪和冰川分布变化以及高海拔能源、水、天气和生物地球化学循环中的作用。记录、理解和预测这些影响具有挑战性，需要广泛的跨学科合作。为了应对这些全球性挑战，本次研讨会将汇集来自美国和中国的湖泊学、气象学、大气科学和水文学以及数据科学和数学建模领域的专家，以协调研究、分享关键发现、确定尚未解答的主要问题和建立未来合作的网络。该奖项由国际科学与工程办公室、地球科学局地球科学和大气与地球空间科学部以及生物基础设施和环境生物学部共同资助。

项目成果

U.S. and China Assess Ecosystem Effects of a Fading Cryosphere

美国和中国评估冰冻圈消退对生态系统的影响

• DOI: 10.1029/2018eo091875
• 发表时间: 2018-02
• 期刊: Eos
• 作者: Khan; Alia
• 通讯作者: Alia

Impacts of a Changing Cryosphere on Lakes and Streams in Mountain Regions: A China-United States Cooperation Workshop

冰冻圈变化对山区湖泊和溪流的影响：中美合作研讨会

• DOI: 10.1002/lob.10214
• 发表时间: 2018-02
• 期刊: Limnology and Oceanography Bulletin
• 作者: Burpee, Benjamin;D'Andrilli, Juliana
• 通讯作者: D'Andrilli, Juliana