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Direct Aerosol Forcing of Climate: Tests of the Internal Consistency of Aerosol Characterizaion Data

气候的直接气溶胶强迫：气溶胶特征数据的内部一致性测试

基本信息

批准号：
9320871
负责人：
Robert Charlson
金额：
$ 90.25万
依托单位：
University of Washington
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1994
资助国家：
美国
起止时间：
1994-06-15 至 2000-11-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9320871&HistoricalAwards=false
关键词：
Direct Aerosol Forcing Climate Tests

项目摘要

9320871 Charlson This research project is developing a methodology for in situ measurements of the climatically important optical concerned with properties which can then be applied to regionally representative sites in order to provide relevant parameters for global climate models. Our goals to characterize measurement uncertainties and to study the sources of variation in the measured parameters by intensive, observational campaigns. Aerosol optical properties will be both measured directly and predicated by Mie theory form measurements of aerosol size distribution and size-resolved chemistry. Convergence of these two approaches is required to validate the present understanding of aerosol optics and assess the accuracy of various simplifying assumptions required by the Mie calculation. Four specific tasks will be to quantify and reduce the uncertainties that presently exist in the climatically important optical properties of tropospheric aerosols; (1) develop a measurement and data analysis methodology, (2) demonstrate closure of an extended measurement set at a well-characterized, minimally- polluted marine site (Cheeka Peak), (3) demonstrate closure at different representative sites (clean and polluted marine, clean and polluted continental), and (4) deliver aerosol optical parameters to measurement and modelling communities.

小行星9320871 该研究项目正在制定一种方法，用于现场测量与气候有关的重要光学特性，然后将其应用于区域代表性地点，以便为全球气候模型提供相关参数。我们的目标是表征测量不确定性，并通过密集的观测活动研究测量参数的变化来源。气溶胶光学特性将直接测量和预测的米氏理论形式的气溶胶粒径分布和尺寸分辨化学测量。这两种方法的收敛需要验证目前的理解气溶胶光学和评估米氏计算所需的各种简化假设的准确性。四项具体任务量化和减少对流层气溶胶的光学特性中目前存在的对气候有重要意义的不确定性;（1）制定一种测量和数据分析方法，（2）展示在一个特征良好、污染最小的海洋地点关闭一个扩展的测量组（Cheeka峰），（3）在不同的代表性地点（清洁和污染的海洋，清洁和污染的大陆）展示关闭，以及（4）向测量和建模界提供气溶胶光学参数。