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

摘要：ATM-9501112纽约州立大学奥尔巴尼分校Mark A. Kritz使用机载氡测量验证全球运输模式的抽样策略的发展尽管使用机载氡测量验证全球运输模式在两个主要研讨会上受到了关注，但迄今为止可用于与模式预测相互比较的观测结果是零碎的，并且并不总是使用考虑到这种相互比较的抽样策略获得的。在这个项目中，我们将与两个著名的全球建模小组密切合作，开发这样一个策略，重点是设计一个测量程序，该程序将允许对三维模型中参数化垂直对流输送的竞争计算方案进行评估。在这项工作中，NCAR的全球气候动力学项目和美国宇航局戈达德太空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使用各种对流参数化来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，并模拟在飞机上沿着这些分布的各种飞行路径所遇到和取样的氡浓度，以便制定飞行计划和取样策略，从而能够有效地评估模型的性能。在这项工作中，私家侦探还将使用他的小组在1994年夏天获得的氡垂直剖面。（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一个观测基础。

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.