Collaborative Research: Developing and Testing Radiation-Transfer Models for Snow-Pack Photochemistry during the ALERT2000 Field Campaign

合作研究：在 ALERT2000 野外活动期间开发和测试积雪光化学的辐射传输模型

• 批准号: 0103775
• 负责人: William Simpson
• 金额: $ 25.96万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0103775&HistoricalAwards=false
• 关键词: Collaborative; Research; Developing; Testing; Radiation

This collaborative research project with Jerry Harrington, Pennsylvania State University, University Park, will develop and test a radiation-transfer model for snow photochemistry. The model will help quantify the extent of photochemical processing of trace compounds within snow and will help in interpreting ice core climate records and understanding atmospheric chemistry in snow-covered regions. The project includes a laboratory-based program of experiments to quantify absorption spectra and quantum yields. Experimental measurements of photolysis rates for bromoform, a possible precursor of "active bromine" in a proposed mechanism of Arctic boundary-layer ozone depletion, and other trace compounds in snow interstitial spaces will be made in a novel snow photolysis chamber.

这个与宾夕法尼亚州立大学大学公园分校的杰里·哈林顿合作的研究项目将开发和测试雪光化学的辐射传输模型。 该模型将有助于量化雪中痕量化合物的光化学处理程度，并有助于解释冰芯气候记录和了解冰雪覆盖地区的大气化学。 该项目包括一个基于实验室的实验计划，用于量化吸收光谱和量子产率。 三溴甲烷（北极边界层臭氧消耗的拟议机制中“活性溴”的可能前体）和雪间隙中的其他痕量化合物的光解速率的实验测量将在新型雪光解室中进行。