GhOST-MS: Gaschromatograph for Observation of Stratospheric Tracers - Mass Spectrometer

GhOST-MS：用于观察平流层示踪剂的气相色谱仪 - 质谱仪

• 批准号: 179945134
• 负责人: Professor Dr. Andreas Engel
• 金额: --
• 依托单位: Institut für Atmosphäre und Umwelt (IAU)
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/179945134?language=en
• 关键词: GhOST; MS; Gaschromatograph; Observation; Stratospheric

We apply here for funds to operate the newly developed tracer instrument GhOST-MS on HALO during the TACTS/SALSA, POLSTRACC, SHIVA (extension) and CIRRUS-RS missions. The scientific objectives of these missions range from chemistry in the upper tropical troposphere to transport studies. GhOST-MS is an in-situ Gaschromatograh (GC) which was developed during phase I of the HALO priority programme in the combined project FACT. GhOST-MS has three channels: two ECD (electron capture detector) channels measuring long-lived trace gases (N2O and SF6/CFC-12) and one MS (mass spectrometer) channel which can measure a large suite of halocarbons. These species serve as chemical and dynamical tracers to investigate the halogen budgets of the tropopause region and the exchange of air masses between the upper troposphere (UT) and the lowermost stratosphere LMS). Depending on the scientific questions, GhOST-MS can be flexibly tuned to specific compounds. For transport studies the task is the measurements of tracers spanning a wide range of atmospheric lifetimes, while for chemical budget studies it is important to measure the relevant source gases e.g. the complete bromine family. The work proposed here includes the final certification of GhOST-MS, the preparation for the campaigns, the field operations, the data retrieval and the first scientific studies with the data.

我们在此申请资金，以便在TALK/SALSA、POLSTRACC、SHIVA（扩展）和CIRRUS-RS飞行任务期间在HALO上操作新开发的示踪仪器GhOST-MS。这些飞行任务的科学目标从热带对流层上层的化学到运输研究不等。GhOST-MS是一种现场气相色谱仪，是在联合项目FACT的哈洛优先方案第一阶段期间开发的。GhOST-MS有三个通道：两个ECD（电子捕获检测器）通道测量长寿命痕量气体（N2 O和SF6/CFC-12），一个MS（质谱仪）通道可以测量大量卤代烃。这些物种作为化学和动力学示踪剂，以研究对流层顶区域的卤素收支以及对流层上部（UT）和平流层下部（LMS）之间的空气质量交换。根据科学问题，GhOST-MS可以灵活地调整到特定的化合物。对于迁移研究，任务是测量跨越广泛大气寿命的示踪剂，而对于化学收支研究，重要的是测量相关的源气体，例如完整的溴族。这里提出的工作包括GhOST-MS的最终认证，运动的准备，现场操作，数据检索和第一次科学研究的数据。