Atmosphärische Dispersion und damit verbundene Gesundheitsgefährdung hervorgerufen durch die kontinuierliche Entgasung der Vulkane Nicaraguas

尼加拉瓜火山持续排气造成的大气扩散和相关健康危害

• 批准号: 40899397
• 负责人: Professor Dr. Matthias Hort
• 金额: --
• 依托单位: Institut für Geophysik (IfG)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/40899397?language=en
• 关键词: Atmosph; rische; Dispersion; und; damit

The goal of the proposed project is an improved determination of the dispersion of continuous volcanic emissions into the atmosphere, the chemical and aerosol microphysical modifications of the released gases and aerosols, related acid deposition and impacts on the environment and human health. Nicaragua with its currently six active volcanoes is chosen as study area, because of its continuous volcanic activity that is monitored by a complex geophysical network including gas emissions. Numerical model simulations with the regional scale atmospherechemistry/ aerosol model REMOTE will be carried out over Central America focussing on Nicaragua. Simulation periods from weeks to months are planned covering both, the dry and rainy season. Volcanic plume rise in the atmosphere will be considered by calculating an effective emission height of the volcanic plume into the atmosphere dependent on volcanic heat flux and meteorological conditions to investigate their importance for further dispersion of the volcanic trace species in the atmosphere. The results of the model simulations will be evaluated by comparisons with available ground based and satellite observations of trace species with most of the ground based measurements in Nicaragua being collected during the dry season.

该项目的目标是改进对持续火山排放物向大气中的扩散、释放气体和气溶胶的化学和气溶胶微物理变化、相关酸沉积以及对环境和人类健康的影响的确定。尼加拉瓜目前有六座活火山被选为研究区域，因为其持续的火山活动受到包括气体排放在内的复杂地球物理网络的监测。将在中美洲以尼加拉瓜为重点，利用区域尺度大气化学/气溶胶模型 REMOTE 进行数值模型模拟。计划模拟期从几周到几个月不等，涵盖旱季和雨季。将通过根据火山热通量和气象条件计算火山羽流进入大气的有效排放高度来考虑大气中火山羽流的上升，以研究其对火山痕量物种在大气中进一步扩散的重要性。模型模拟的结果将通过与痕量物种的现有地面和卫星观测结果进行比较来评估，尼加拉瓜的大部分地面测量数据是在旱季收集的。