SPI - Bromine monoxide (BrO) measurements made using a MAX-DOAS (Multi-AXis Differential Optical Absorption Spectroscopy) instrument in the austral summer of 2016/17 during the Antarctic Circumnavigation Expedition (ACE).

To achieve the objectives of the project, we installed a MAX-DOAS (Multi-AXis Differential Optical Absorption Spectroscopy) instrument on the vessel “Akademik Tryoshnikov”. This instrument is based on the DOAS technique, which is used to measure trace gas concentrations in the atmosphere. The method consists of the analysis of the spectral absorption lines that each trace gas produces in the solar spectra. The DOAS technique uses the narrowband features that every trace gas has in their spectral absorption coefficients. This differential cross section is unique and acts like a fingerprint for the trace gases, allowing to differentiate between them and to estimate their concentrations (for further details see Platt and Stutz, 2008). In the past decades, atmospheric chemists have come to realize that halogen species (like Cl, Br or I and their oxides ClO, BrO and IO) exert a powerful influence on the chemical composition of the troposphere and through that influence affect the evolution of pollutants, hence having a significant impact on climate. These reactive halogen species are potent oxidizers for organic and inorganic compounds throughout the troposphere. In particular, halogen cycles can act on several compounds (such as methane, ozone, particles…), all of which are climate forcing agents through direct and indirect radiative effects. Dynamic exchange of halogens between ocean, sea ice, snowpack and atmosphere is the main driver for the frequent occurrence of Ozone Depletion Events (ODEs) and Atmospheric Mercury Depletion Events (AMDEs) (Saiz-Lopez and von Glasow, 2012). In this dataset we present the mixing ratio and vertical column density of bromine monoxide (BrO) recorded in the austral summer of 2016/2017 in the Southern Ocean and Atlantic Ocean, averaged over one-hour time periods.
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cdm_data_type=Other
citation=Benavent, N., Garcia-Nieto, D., Cuevas, C.A. and Saiz-Lopez, A. (2020). Bromine monoxide (BrO) measurements made using a MAX-DOAS (Multi-Axis Differential Optical Absorption Spectroscopy) instrument in the austral summer of 2016/17 during the Antarctic Circumnavigation Expedition (ACE). (Version 1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.3843263
contributors=[{'title': 'Nuria Benavent', 'path': 'https://orcid.org/0000-0003-3473-0629', 'role': 'author', 'organisation': 'Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Consejo Superior de Investigaciones Científicas, Spain'}, {'title': 'David Garcia-Nieto', 'path': 'https://orcid.org/0000-0002-0884-5978', 'role': 'author', 'organisation': 'Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Consejo Superior de Investigaciones Científicas, Spain'}, {'title': 'Carlos Alberto Cuevas', 'path': 'https://orcid.org/0000-0002-9251-5460', 'role': 'author', 'organisation': 'Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Consejo Superior de Investigaciones Científicas, Spain'}, {'title': 'Alfonso Saiz-Lopez', 'path': 'https://orcid.org/0000-0002-0060-1581', 'email': '[e-mail]', 'role': 'author', 'organisation': 'Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Consejo Superior de Investigaciones Científicas, Spain'}]
Conventions=COARDS, CF-1.6, ACDD-1.3
DOI=https://doi.org/10.5281/zenodo.3843263
infoUrl=https://doi.org/10.5281/zenodo.3843263
institution=SPI
platform_code=UBXH3_ACE_3843262
platform_name=R/V Akademik Tryoshnikov
sourceUrl=(local files)
standard_name_vocabulary=CF Standard Name Table v55
type=ferrybox/ship

为达成项目目标，我们在“阿卡迪克·特里什尼科夫”号船舶上安装了一台MAX-DOAS（多轴差分光学吸收光谱）仪器。该仪器基于DOAS技术，该技术被用于测量大气中的痕量气体浓度。该方法包括分析每种痕量气体在太阳光谱中产生的光谱吸收线。DOAS技术利用了每种痕量气体在其光谱吸收系数中的窄带特征。这种差分截面具有独特性，类似于痕量气体的指纹，能够区分不同气体并估算其浓度（详见Platt和Stutz，2008年）。在过去几十年中，大气化学家们逐渐认识到，卤素物种（如Cl、Br或I及其氧化物ClO、BrO和IO）对对流层化学组成有着强大的影响，并通过这种影响作用于污染物的演变，从而对气候变化产生显著影响。这些活泼的卤素物种是整个对流层中有机和无机化合物的强氧化剂。特别是，卤素循环可以作用于多种化合物（如甲烷、臭氧、颗粒物等），所有这些化合物都是通过直接和间接的辐射效应影响气候的强迫因子。海洋、海冰、雪层与大气的卤素动态交换是臭氧耗损事件（ODEs）和大气汞耗损事件（AMDEs）频繁发生的主要驱动力（Saiz-Lopez和von Glasow，2012年）。在本数据集中，我们展示了2016/2017年南大洋和大西洋地区夏季溴氧化物（BrO）的混合比和垂直柱密度，数据按一小时时间间隔进行平均。

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引用=Benavent, N., Garcia-Nieto, D., Cuevas, C.A.和Saiz-Lopez, A.（2020）。使用MAX-DOAS（多轴差分光学吸收光谱）仪器在2016/17年南极绕航探险（ACE）期间测量的溴氧化物（BrO）测量值。[数据集]。Zenodo。https://doi.org/10.5281/zenodo.3843263
贡献者=[{'标题': 'Nuria Benavent', '路径': 'https://orcid.org/0000-0003-3473-0629', '角色': '作者', '组织': '大气化学与气候学系，物理化学罗卡索拉诺研究所，西班牙科学理事会'}, {'标题': 'David Garcia-Nieto', '路径': 'https://orcid.org/0000-0002-0884-5978', '角色': '作者', '组织': '大气化学与气候学系，物理化学罗卡索拉诺研究所，西班牙科学理事会'}, {'标题': 'Carlos Alberto Cuevas', '路径': 'https://orcid.org/0000-0002-9251-5460', '角色': '作者', '组织': '大气化学与气候学系，物理化学罗卡索拉诺研究所，西班牙科学理事会'}, {'标题': 'Alfonso Saiz-Lopez', '路径': 'https://orcid.org/0000-0002-0060-1581', '电子邮件': '[e-mail]', '角色': '作者', '组织': '大气化学与气候学系，物理化学罗卡索拉诺研究所，西班牙科学理事会'}]
约定=COARDS, CF-1.6, ACDD-1.3
DOI=https://doi.org/10.5281/zenodo.3843263
信息URL=https://doi.org/10.5281/zenodo.3843263
机构=SPI
平台代码=UBXH3_ACE_3843262
平台名称=R/V阿卡迪克·特里什尼科夫
源URL=(本地文件)
标准名称词汇=CF标准名称表v55
类型=渡轮/船舶