Advanced Water and Ice investigations in Subtropical, Mid-Latitude and Arctic Cirrus (ACIS)

亚热带、中纬度和北极卷云 (ACIS) 的高级水和冰调查

• 批准号: 179750897
• 负责人: Dr. Martina Krämer
• 金额: --
• 依托单位: Institut für Bio- und Geowissenschaften (IBG)
• 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 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/179750897?language=en
• 关键词: Advanced; Water; Ice; investigations; Subtropical

Upper troposheric observations of high supersaturations in- and outside of cirrus as well as low/high ice crystal numbers in cold/warm ice clouds initiated controversial debates on our understanding of the physical processes in ice clouds as well as intense activities to improve the accuracy of the water and ice instrumentation. The aim of ACIS is to put forward the understanding of ice clouds by investigating subtropical, mid-latitude and Arctic cirrus ice clouds using advanced water and ice instrumentation on board of HALO during the missions ML-CIRRUS, POLSTRACC and CIRRUS-RS. Further, the ability of the in-situ instrumentation to observe thin cirrus will be critically addressed by comparison of the in-situ observations with ground-based Lidar measurements. From a strict qualitiy controlled data analysis of the measured parameters, an ‘ACIS water and ice data base’ will be prepared for each mission. This ACIS data base will serve as input for comprehensive simulations with a detailed microphysical ice model. The role of heterogeneous and homogeneous freezing in ice nucleation as well as the supersaturation distribution in cirrus and its link to the ice crystals number and size will be evaluated.

对流层上层对卷云内外高过饱和度以及冷/暖冰云中低/高冰晶数的观测，引发了人们对冰云中物理过程的理解以及提高水和冰仪器精度的激烈活动的争议。ACIS的目的是在ML-CIRRUS、POLSTRACC和cirrus - rs任务期间，利用HALO机载先进的水冰仪器对亚热带、中纬度和北极卷云冰云进行调查，从而提高对冰云的认识。此外，通过将原位观测与地面激光雷达测量结果进行比较，将关键地解决原位仪器观测薄卷云的能力问题。通过对测量参数进行严格的质量控制数据分析，将为每次任务准备一个“ACIS水和冰数据库”。该ACIS数据库将作为详细的微物理冰模型综合模拟的输入。将评估非均质和非均质冻结在冰成核中的作用，以及卷云中的过饱和分布及其与冰晶数量和大小的联系。

项目成果

Ice water content of Arctic, midlatitude, and tropical cirrus - Part 2: Extension of the database and new statistical analysis

北极、中纬度和热带卷云的冰水含量 - 第 2 部分：数据库扩展和新的统计分析

• DOI: 10.5194/acp-13-6447-2013
• 发表时间: 2013
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: Luebke;L. Avallone;C. Schiller;C. Rolf;M. Krämer
• 通讯作者: M. Krämer

Aerosol and Cloud Particle Sampling

气溶胶和云颗粒采样

• DOI: 10.1002/9783527653218.ch6
• 发表时间: 2013
• 作者: Krämer;C. Twohy;M. Hermann;A. Afchine;S. Dhaniyala;A. Korolev
• 通讯作者: A. Korolev

The AquaVIT-1 intercomparison of atmospheric water vapor measurement techniques

• DOI: 10.5194/amt-7-3177-2014
• 发表时间: 2014-01-01
• 期刊: ATMOSPHERIC MEASUREMENT TECHNIQUES
• 影响因子: 3.8
• 作者: Fahey, D. W.;Gao, R. -S.;Wienhold, F. G.
• 通讯作者: Wienhold, F. G.

A methodology for in-situ and remote sensing of microphysical and radiative properties of contrails as they evolve into cirrus

一种对凝结尾迹演化为卷云时的微物理和辐射特性进行原位和遥感的方法

• DOI: 10.5194/acp-12-8157-2012
• 发表时间: 2012
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: J. Haywood;F. Marenco;D. O’Sullivan;J. Meyer;R. Thorpe;M. W. Gallagher;M. Krämer;K. N. Bower;G. Rädel;A. Rap;A. Woolley;P. Forster;H. Coe
• 通讯作者: H. Coe

Two decades of water vapor measurements with the FISH fluorescence hygrometer: a review

FISH 荧光湿度计二十年来的水蒸气测量：回顾

• DOI: 10.5194/acp-15-8521-2015
• 发表时间: 2015
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: J. Meyer;C. Rolf;C. Schiller;S. Rohs;N. Spelten;A. Afchine;M. Zöger;N. Sitnikov;T. Thornberry;A. Rollins;Z. Bozoki;D. Tatrai;V. Ebert; B. Kühnreich;P. Mackrodt;O. Möhler;H. Saathoff;K. Rosenlof;M. Krämer
• 通讯作者: M. Krämer