Development of a Sampling Strategy for the Verification of Global Transport Models Using Airborne Radon Measurements

摘要ATM-9501112 Kritz，Mark A. 奥尔巴尼纽约州立大学题目： 利用气载氡测量的全球输运模式 虽然使用气载氡测量对全球迁移模型进行验证的问题在两个主要研讨会上得到了关注，但迄今为止可用于与模型预测相互比较的观测结果是不完整的，而且并非总是使用考虑到这种相互比较而设计的抽样策略获得的。 在这个项目中，我们将与两个突出的全球建模小组密切合作，这样一个战略的发展，重点是设计一个测量程序，这将允许在3-D模型参数化垂直对流输送的竞争计算方案的评估。 在这项工作中，NCAR的全球气候动力学方案和美国航天局戈达德航天飞行中心的数据同化办公室正在开发的全球环流和同化风模型将用于利用各种对流参数化模拟北美上空的自由对流层氡分布。 PI将与这些组织的研究人员合作，检查这些分布，并模拟飞机上的仪器会遇到的氡浓度，并通过这些分布进行采样，以制定飞行计划和采样策略，从而有效地评估模型性能。 在这项工作中，PI还将使用其小组在1994年夏天获得的氡垂直分布图。(The 1994年的数据集也将在互联网上提供给建模界。 这项研究很重要，因为它试图为测试和改进GCM模拟垂直输送的方式建立观测基础。

Abstract ATM-9501112 Kritz, Mark A. State University of New York at Albany Title: Development of a Sampling Strategy for the Verification of Global Transport Models Using Airborne Radon Measurement Although the verification of global transport models using airborne radon measurementq has received attention at two major workshops, the observations available thus far for intercomparsion with model predictions are fragmentary and were not always obtained using a sampling strategy designed with such intercomparsions in mind. In this project we will work closely with two prominent global modeling groups on the development of such a strategy, with emphasis on designing a measurement program which will permit the evaluation of competing computational schemes for parameterizing vertical convective transport in 3-D models. In this effort the global circulation and assimilation wind models under development at the Global Climate Dynamics Program at NCAR and at the Data Assimilation Office at the NASA Goddard Space Flight Center will be used to stimulate free tropospheric radon distributions over North America using a variety of convective parameterizations. Working with researchers in these organizations, the PI will examine these distributions and simulate the radon concentrations which would be encountered and sampled by instrumentation on an aircraft following various flight paths through such distributions in order to develop flight plans and sampling strategies which would allow an efficient evaluation of model performance. In this effort the PI will also use the radon vertical profiles acquired by his group in the summer of 1994. (The 1994 data set will also be made available to the modeling community on the internet.) This research is important because it attempts to develop an observational basis for testing and improving the way GCMs simulation vertical transports.