An overview of ACE-Asia: Strategies for quantifying the relationships between Asian aerosols and their climatic impacts
An overview of ACE-Asia: Strategies for quantifying the relationships between Asian aerosols and their climatic impacts
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DOI：
10.1029/2003jd003550
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发表时间：
2003-11-14
影响因子：
4.4
通讯作者：
Nakajima, T
中科院分区：
文献类型：
--
作者：
Huebert, BJ;Bates, T;Nakajima, T
国际全球大气化学计划(IGAC)开展了一系列气溶胶表征实验(ACE)，整合了现场测量、卫星观测和模式，以减少气溶胶颗粒造成的气候强迫计算中的不确定性。ACEASIA是这一系列实验的第四个，由两个重点部分组成：(1)密集的实地研究，力求量化气溶胶浓度和特性的空间和垂直分布、控制其形成、演变和去向的过程，以及气溶胶的柱状综合辐射效应(2001年3月下旬至5月)。(2)一个较长期的地面站网络，该网络使用现场测量和柱综合测量来量化ACE-Asia研究区域内气溶胶的化学、物理和光学性质，并评估其空间和时间(季节和年际)变化(2000-2003年)。ACE-Asia科学小组的方法是同时测量气溶胶的化学、物理和光学性质及其在各种气团中的辐射影响，通常与卫星天桥协调。三架飞机、两艘考察船、一个激光雷达网络和许多地面站点收集了亚洲气溶胶的数据。化学传输模型(CTM)从一开始就被整合到该计划中，在密集观测期间以预报模式使用，以确定有希望的机载和船舶观测区域，然后作为综合观测的工具。测试和改进各种气溶胶模式(包括微物理模式、辐射传输模式、CTM模式和全球气候模式)是我们评估我们对亚洲气溶胶特性和控制过程的理解的一个重要途径。我们在这里介绍了ACE-Asia实验的科学目标和目的、其观测战略、移动平台和固定站点进行的观测类型、将把我们对气溶胶颗粒气候影响的理解结合在一起的模型，以及已经产生的数据类型。八个科学问题集中在讨论中。密集的观测发生在沙尘异常严重的季节，所以我们有一大套关于沙尘及其与空气污染物相互作用的观测。欲了解有关亚洲公司的更多信息，请访问该项目的网站：http://saga.pmel.noaa.gov/aceasia/.。
The International Global Atmospheric Chemistry Program (IGAC) has conducted a series of Aerosol Characterization Experiments (ACE) that integrate in situ measurements, satellite observations, and models to reduce the uncertainty in calculations of the climate forcing due to aerosol particles. ACE-Asia, the fourth in this series of experiments, consisted of two focused components: (1) An intensive field study that sought to quantify the spatial and vertical distribution of aerosol concentrations and properties, the processes controlling their formation, evolution, and fate, and the column-integrated radiative effect of the aerosol (late March through May 2001). (2) A longer-term network of ground stations that used in situ and column-integrated measurements to quantify the chemical, physical, and optical properties of aerosols in the ACE-Asia study area and to assess their spatial and temporal (seasonal and interannual) variability (2000-2003). The approach of the ACE-Asia science team was to make simultaneous measurements of aerosol chemical, physical, and optical properties and their radiative impacts in a variety of air masses, often coordinated with satellite overpasses. Three aircraft, two research ships, a network of lidars, and many surface sites gathered data on Asian aerosols. Chemical transport models (CTMs) were integrated into the program from the start, being used in a forecast mode during the intensive observation period to identify promising areas for airborne and ship observations and then later as tools for integrating observations. The testing and improvement of a wide range of aerosol models (including microphysical, radiative transfer, CTM, and global climate models) was one important way in which we assessed our understanding of the properties and controlling processes of Asian aerosols. We describe here the scientific goals and objectives of the ACE-Asia experiment, its observational strategies, the types of observations made by the mobile platforms and stationary sites, the models that will integrate our understanding of the climatic effect of aerosol particles, and the types of data that have been generated. Eight scientific questions focus the discussion. The intensive observations took place during a season of unusually heavy dust, so we have a large suite of observations of dust and its interaction with air pollutants. Further information about ACE-Asia can be found on the project Web site at http://saga.pmel.noaa.gov/aceasia/.