Repairs and Upgrades for the Qikirtaarjuak Island Air-Ice-Ocean Observatory
Qikirtaarjuak 岛空气-冰-海洋观测站的维修和升级
基本信息
- 批准号:RTI-2020-00170
- 负责人:
- 金额:$ 6.02万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Research Tools and Instruments
- 财政年份:2019
- 资助国家:加拿大
- 起止时间:2019-01-01 至 2020-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Oceans play an important role in determining the composition of our atmosphere. The majority of our oxygen was generated in the oceans, and a large percentage of the CO2 produced by industrial activities ends up in the oceans. Gas exchange is the process by which these gases cross the air-sea boundary, and we have a good understanding of how it works in the open ocean. However in polar seas, the presence of sea ice makes air-sea gas exchange extremely complicated. Since sea ice affects about 10% of global oceans, climate scientists need to know how greenhouse gases, like CO2, are exchanged in the presence of sea ice. Unfortunately, only a few studies have directly measured gas exchange in this environment due to the challenges of working in remote locations, and the expense of working on icebreakers.******Our research lab has developed an innovative approach to solve this problem. We built a weather station on a small island that is completely surrounded by sea ice in winter. This island is close to an Inuit community (Cambridge Bay, Nunavut), which makes it easier to maintain the station. At the station, we deployed instruments to measure CO2 exchange using the eddy covariance technique. Eddy covariance essentially works by counting CO2 molecules as they blow past the weather station on updrafts and downdrafts. It is the only suitable technique for this type of environment, because it measures an upwind surface (to about 1 km), without actually touching the surface. With this system, we have produced the first-ever measurements of CO2 exchange through a seasonal cycle of ice melt, open water, and freeze-up.******Unfortunately, this past spring our weather station was damaged by the unpredictable forces of nature. In less than 30 minutes, a northerly wind pushed ice floes onto the island, piling up a wall of ice that knocked the tower down. All of our eddy covariance instruments were damaged by the fall, and the tower itself was destroyed. This grant application will allow us to buy a new tower, repair the damaged instruments, and buy additional instruments to avoid future data interruptions.******With timely funding, the station can be rebuilt before next melt season, allowing students and postdoctoral fellows to continue their hands-on training, and complete their research projects. Rebuilding the station will also allow us to continue research initiatives linked to the local Inuit community. Working with community leaders, we use the station to test innovations that support Inuit research priorities like observing weather conditions, monitoring ship traffic, and listening for whales. We also use the station as part of a training program that develops Inuit environmental monitoring capacity, and facilitates cross-cultural collaboration between southern and northern HQPs. Rebuilding this station is critical for continuing our inclusive, innovative science program.
海洋在决定我们大气层的组成方面起着重要作用。我们大部分的氧气是在海洋中产生的,工业活动产生的二氧化碳中有很大一部分最终进入海洋。气体交换是这些气体跨越海气边界的过程,我们对它在开放海洋中的作用有很好的了解。然而,在极地海洋,海冰的存在使得气-海气体交换极其复杂。由于海冰影响了全球约10%的海洋,气候科学家需要知道二氧化碳等温室气体是如何在海冰存在的情况下交换的。不幸的是,由于在偏远地区工作的挑战,以及在破冰船上工作的费用,只有少数研究直接测量了这种环境中的气体交换。我们的研究实验室开发了一种创新的方法来解决这个问题。我们在一个冬天完全被海冰包围的小岛上建立了一个气象站。 这个岛靠近因纽特人社区(剑桥湾,努纳武特),这使得该站的维护更容易。在该站,我们部署了仪器来测量CO2交换使用涡度相关技术。涡动协方差基本上是通过计算二氧化碳分子,因为他们吹过去的上升气流和下降气流的气象站。这是唯一适合这种环境的技术,因为它测量逆风表面(约1公里),而不实际接触表面。有了这个系统,我们通过冰融化,开放水域和冻结的季节性循环首次测量了CO2交换。不幸的是,今年春天,我们的气象站被不可预测的自然力量破坏了。不到30分钟,一股北风将浮冰吹到岛上,堆积成一堵冰墙,将塔撞倒。 我们所有的涡度相关仪器都被坠落损坏了,塔本身也被摧毁了。这项拨款申请将允许我们购买一个新的塔,修复损坏的仪器,并购买额外的仪器,以避免未来的数据中断。有了及时的资金,该站可以在下一个融化季节之前重建,让学生和博士后继续他们的实践培训,并完成他们的研究项目。重建空间站也将使我们能够继续与当地因纽特人社区有关的研究计划。我们与社区领导人合作,利用该站测试支持因纽特人研究优先事项的创新,如观察天气状况,监测船舶交通和倾听鲸鱼。我们还将该监测站作为培训计划的一部分,以提高因纽特人的环境监测能力,并促进南部和北方HQP之间的跨文化合作。重建这个空间站对于继续我们的包容性,创新的科学计划至关重要。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
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专利数量(0)
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Else, Brent其他文献
Hydroclimatic Controls on the Isotopic (δ18 O, δ2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events
水文气候对泛北极夏季降雨事件同位素(δ18 O、δ2 H、d-过量)特征的控制
- DOI:
10.3389/feart.2021.651731 - 发表时间:
2021 - 期刊:
- 影响因子:2.9
- 作者:
Mellat, Moein;Bailey, Hannah;Mustonen, Kaisa-Riikka;Marttila, Hannu;Klein, Eric S.;Gribanov, Konstantin;Bret-Harte, M. Syndonia;Chupakov, Artem V.;Divine, Dmitry V.;Else, Brent - 通讯作者:
Else, Brent
Dynamic response of NDVI to soil moisture variations during different hydrological regimes in the Sahel region
- DOI:
10.1080/01431161.2017.1339920 - 发表时间:
2017-01-01 - 期刊:
- 影响因子:3.4
- 作者:
Ahmed, Mohamed;Else, Brent;Seaquist, Jonathan - 通讯作者:
Seaquist, Jonathan
Else, Brent的其他文献
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{{ truncateString('Else, Brent', 18)}}的其他基金
Carbon Sinks and Ocean Acidification in Canadian Coastal Waters
加拿大沿海水域的碳汇和海洋酸化
- 批准号:
RGPIN-2022-03851 - 财政年份:2022
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Individual
Carbon Sinks and Ocean Acidification in Canadian Coastal Waters
加拿大沿海水域的碳汇和海洋酸化
- 批准号:
RGPNS-2022-03851 - 财政年份:2022
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Northern Research Supplement
Air-sea CO2 Exchange in the Arctic Marine Environment
北极海洋环境中的海气二氧化碳交换
- 批准号:
477032-2015 - 财政年份:2021
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Northern Research Supplement
Air-sea CO2 Exchange in the Arctic Marine Environment
北极海洋环境中的海气二氧化碳交换
- 批准号:
RGPIN-2015-04780 - 财政年份:2021
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Individual
Air-sea CO2 Exchange in the Arctic Marine Environment
北极海洋环境中的海气二氧化碳交换
- 批准号:
477032-2015 - 财政年份:2020
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Northern Research Supplement
Air-sea CO2 Exchange in the Arctic Marine Environment
北极海洋环境中的海气二氧化碳交换
- 批准号:
RGPIN-2015-04780 - 财政年份:2020
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Individual
Air-sea CO2 Exchange in the Arctic Marine Environment
北极海洋环境中的海气二氧化碳交换
- 批准号:
RGPIN-2015-04780 - 财政年份:2019
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Individual
Air-sea CO2 Exchange in the Arctic Marine Environment
北极海洋环境中的海气二氧化碳交换
- 批准号:
477032-2015 - 财政年份:2019
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Northern Research Supplement
A Mobile Instrument System for Measuring Dissolved Methane in Arctic Aquatic Environments
用于测量北极水生环境中溶解甲烷的移动仪器系统
- 批准号:
RTI-2019-00691 - 财政年份:2018
- 资助金额:
$ 6.02万 - 项目类别:
Research Tools and Instruments
Air-sea CO2 Exchange in the Arctic Marine Environment
北极海洋环境中的海气二氧化碳交换
- 批准号:
RGPIN-2015-04780 - 财政年份:2018
- 资助金额:
$ 6.02万 - 项目类别:
Discovery Grants Program - Individual
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