Collaborative Research: Determination of the Optical and Reactive Properties of Water Vapor of Relevance to Atmospheric Radiation, Cloud Physics and Chemistry

合作研究：确定水蒸气与大气辐射、云物理和化学相关的光学和反应性质

• 批准号: 1608551
• 负责人: Lei Zhu
• 金额: $ 58.84万
• 依托单位: Health Research Incorporated/New York State Department of Health
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-01 至 2021-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1608551&HistoricalAwards=false
• 关键词: Collaborative; Research; Determination; Optical; Reactive

This project is investigating water vapor absorption of near ultraviolet (NUV) solar radiation in the atmosphere. The results of this research may help resolve a long-standing discrepancy between modeled and observed solar energy absorption under clear sky conditions in the atmosphere. This research combines laboratory experiments, field measurements, and modeling to investigate critically important issues regarding the role of water vapor absorption in determining the radiative equilibrium of the atmosphere.The objectives of the project are to make laboratory measurements of water vapor near UV absorption cross sections and their temperature dependence at spectral resolution and intervals comparable to existing satellite/surface ozone monitoring instruments, to monitor water vapor near UV spectral absorption in the tropical atmosphere, and to evaluate the consequences of including this near UV absorption by water vapor on satellite/surface ozone retrievals and on models of atmospheric radiation, circulation, and climate. Field measurements will be acquired by piggybacking a UV radiation spectrometer on the National Oceanic and Atmospheric Administration (NOAA) project, the AERosols and Ocean Science Expeditions (AEROSE) field campaign in the equatorial Atlantic. A different partitioning of atmospheric absorption by ozone and water vapor could alter model simulations of large-scale atmospheric circulation.

这个项目是研究大气中水蒸气对近紫外（NUV）太阳辐射的吸收。这项研究的结果可能有助于解决在晴朗天空条件下大气中模拟和观测到的太阳能吸收之间长期存在的差异。本研究结合了实验室实验、现场测量和模型来研究有关水蒸气吸收在确定大气辐射平衡中的作用的重要问题。该项目的目标是在光谱分辨率和可与现有卫星/地面臭氧监测仪器相媲美的时间间隔内，对近紫外线吸收的水蒸气横截面及其温度依赖性进行实验室测量，监测热带大气中近紫外线吸收的水蒸气，并评估将这种近紫外线吸收纳入卫星/地面臭氧检索和大气辐射模型的后果。循环和气候。美国国家海洋和大气管理局（NOAA）项目、气溶胶和海洋科学考察（AEROSE）在赤道大西洋的实地考察活动将搭载一台紫外线辐射光谱仪进行实地测量。臭氧和水蒸气对大气吸收的不同分配可能改变大尺度大气环流的模式模拟。