Satellite remote sensing of atmospheric trends and processes
大气趋势和过程的卫星遥感
基本信息
- 批准号:RGPIN-2019-04449
- 负责人:
- 金额:$ 2.62万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2020
- 资助国家:加拿大
- 起止时间:2020-01-01 至 2021-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In the last few decades we have seen great advances in atmospheric science that have been made possible by new satellite instruments. These enable global measurements of a high-altitude region of the atmosphere that is important for climate, called the stratosphere, and the lower altitude troposphere, which is critical for our air quality. Canada has played a key role in these advances through the operation of the OSIRIS satellite instrument. The projects funded by this proposal make further use of the OSIRIS measurements to study long-term trends in the stratosphere. We also propose to continue to develop the technology for new satellite instrumentation for measuring the stratosphere, and analyze future satellite measurements of air quality in the troposphere.
OSIRIS is one of the few satellite instruments that can measure stratospheric aerosol. These tiny droplets, which can last in the stratosphere for many years, are caused in part by volcanic eruptions and by scattering sunlight away from the Earth, cool the planet. We will work with OSIRIS data and new NASA satellite measurements to improve the long-term record of global distributions of aerosol and extend it into the future. This time series is an important input into the climate modelling studies that need to account for the cooling effects of these aerosol particles. We will also study satellite measurements of reactive nitrogen, which plays an important role in atmosphere chemistry of the stratosphere, to understand long-term evolution and trends that are linked to changes in climate.
Using the knowledge we gain by studying satellite measurements, we are developing new prototype instruments for future satellite missions to measure aerosol and water vapor. We have recently tested these instruments on stratospheric balloons and high-altitude aircraft and plan future campaigns targeting scientific observations of aerosols, atmospheric transport, and structure. This proposal provides support for us to continue the testing and scientific analysis of these measurements. An important impact of this project will be a greatly increased readiness level for future Canadian space technology with the potential to make key advances in atmospheric science, along with advancement in the knowledge of how to best utilize and understand new measurements of the atmosphere.
Finally, we plan to improve the data quality obtained from future geostationary air quality satellite missions. The standard ways of analyzing these measurements is not ideal for the steep angles required to view Canada from geostationary orbit. Additionally, snow and ice cover, often impacting key Canadian locations such as the oil sands, represents a challenge that can impact retrieved data quality. In this work, we propose to leverage our experience to improve this data quality by developing customized retrieval algorithms for Canadian measurements, specially tuned to handle the steep angles and snowy conditions.
在过去的几十年里,我们看到了大气科学的巨大进步,这些进步是由新的卫星仪器实现的。 这使得全球能够测量对气候非常重要的大气高海拔区域,称为平流层,以及对我们的空气质量至关重要的低海拔对流层。加拿大通过OSIRIS卫星仪器的运行在这些进展中发挥了关键作用。该提案资助的项目进一步利用OSIRIS的测量结果来研究平流层的长期趋势。我们还建议继续开发用于测量平流层的新卫星仪器的技术,并分析未来对对流层空气质量的卫星测量。
OSIRIS是为数不多的能够测量平流层气溶胶的卫星仪器之一。这些微小的水滴,可以在平流层持续多年,部分原因是火山爆发和散射阳光远离地球,冷却地球。我们将与OSIRIS数据和新的NASA卫星测量,以改善全球气溶胶分布的长期记录,并将其扩展到未来。这一时间序列是对气候模拟研究的重要投入,气候模拟研究需要考虑这些气溶胶颗粒的冷却效应。我们还将研究活性氮的卫星测量,这在平流层的大气化学中起着重要作用,以了解与气候变化有关的长期演变和趋势。
利用我们通过研究卫星测量获得的知识,我们正在为未来的卫星任务开发新的原型仪器,以测量气溶胶和水蒸气。我们最近在平流层气球和高空飞机上测试了这些仪器,并计划未来开展针对气溶胶、大气传输和结构的科学观测活动。这一建议为我们继续测试和科学分析这些测量提供了支持。这一项目的一个重要影响将是大大提高加拿大未来空间技术的准备水平,从而有可能在大气科学方面取得重大进展,沿着在如何最好地利用和了解新的大气测量方法的知识方面取得进展。
最后,我们计划提高从未来的地球静止空气质量卫星任务获得的数据质量。分析这些测量结果的标准方法对于从地球静止轨道观察加拿大所需的陡峭角度来说并不理想。此外,冰雪覆盖,往往影响加拿大的关键地点,如油砂,代表了一个挑战,可以影响检索数据的质量。在这项工作中,我们建议利用我们的经验,通过开发定制的检索算法,为加拿大的测量,专门调整,以处理陡峭的角度和积雪条件,以提高数据质量。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Bourassa, Adam其他文献
Remote sensing of aerosols in the Arctic for an evaluation of global climate model simulations
- DOI:
10.1002/2013jd021279 - 发表时间:
2014-07-16 - 期刊:
- 影响因子:4.4
- 作者:
Glantz, Paul;Bourassa, Adam;Thomason, Larry - 通讯作者:
Thomason, Larry
Accounting for the photochemical variation in stratospheric NO2 in the SAGE III/ISS solar occultation retrieval
- DOI:
10.5194/amt-14-557-2021 - 发表时间:
2021-01-26 - 期刊:
- 影响因子:3.8
- 作者:
Dube, Kimberlee;Bourassa, Adam;Randel, William - 通讯作者:
Randel, William
Tropopause-Level NO(x) in the Asian Summer Monsoon.
- DOI:
10.1029/2022gl099848 - 发表时间:
2022-09-28 - 期刊:
- 影响因子:5.2
- 作者:
Dube, Kimberlee;Randel, William;Bourassa, Adam;Degenstein, Doug - 通讯作者:
Degenstein, Doug
Observational evidence of moistening the lowermost stratosphere via isentropic mixing across the subtropical jet
- DOI:
10.5194/acp-20-5477-2020 - 发表时间:
2020-05-12 - 期刊:
- 影响因子:6.3
- 作者:
Langille, Jeffery;Bourassa, Adam;Degenstein, Doug - 通讯作者:
Degenstein, Doug
Bourassa, Adam的其他文献
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{{ truncateString('Bourassa, Adam', 18)}}的其他基金
Satellite remote sensing of atmospheric trends and processes
大气趋势和过程的卫星遥感
- 批准号:
RGPIN-2019-04449 - 财政年份:2022
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Satellite remote sensing of atmospheric trends and processes
大气趋势和过程的卫星遥感
- 批准号:
RGPIN-2019-04449 - 财政年份:2021
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Satellite remote sensing of atmospheric trends and processes
大气趋势和过程的卫星遥感
- 批准号:
RGPIN-2019-04449 - 财政年份:2019
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Limb sounding upper tropospheric and stratospheric trends and processes
对流层上层和平流层的临边探测趋势和过程
- 批准号:
RGPIN-2014-04287 - 财政年份:2018
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Limb sounding upper tropospheric and stratospheric trends and processes
对流层上层和平流层的临边探测趋势和过程
- 批准号:
RGPIN-2014-04287 - 财政年份:2017
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Limb sounding upper tropospheric and stratospheric trends and processes
对流层上层和平流层的临边探测趋势和过程
- 批准号:
RGPIN-2014-04287 - 财政年份:2016
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Limb sounding upper tropospheric and stratospheric trends and processes
对流层上层和平流层的临边探测趋势和过程
- 批准号:
RGPIN-2014-04287 - 财政年份:2015
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Limb sounding upper tropospheric and stratospheric trends and processes
对流层上层和平流层的临边探测趋势和过程
- 批准号:
RGPIN-2014-04287 - 财政年份:2014
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
Calibration of atmospheric remote sensing instrumentation
大气遥感仪器校准
- 批准号:
474121-2015 - 财政年份:2014
- 资助金额:
$ 2.62万 - 项目类别:
Research Tools and Instruments - Category 1 (<$150,000)
Remote sensing processes and trends in the middle atmosphere
中层大气遥感过程及趋势
- 批准号:
371447-2009 - 财政年份:2013
- 资助金额:
$ 2.62万 - 项目类别:
Discovery Grants Program - Individual
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