H2020Индивидуална стипендия2017–2019

ACRoNNIM · Aerosol and Climate Response to NH3 in the NMMB/BSC Inter-Scale Model

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-09-12 → 2019-09-11
Финансиране от ЕС: 170 122 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Взаимодействията между газообразния амоняк и органичните молекули в аерозолните частици влияят върху масата и състава им. Разбирането на тези процеси помага за по-точни прогнози в климатичните модели относно качеството на въздуха, видимостта и здравето на хората.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Aerosol and Climate Response to NH3 in the NMMB/BSC Inter-Scale Model

Multiphase chemical processes are important components of the atmospheric system, with significant but complex effects on air quality and Earth’s climate. The goal of the ACRoNNIM project is to investigate the effect of interactions between gas-phase ammonia and organic molecules within aerosol particles on aerosol mass, composition, and optical properties. Due to the climate, health and visibility effects of particulate matter, inclusion of this multiphase chemistry into regional and global weather and climate models is timely. Complicating these efforts are the large number of species and oxidation pathways involved, their seasonally, spatially, and diurnally varying importance, and the complex physical processes controlling their phase partitioning. Regional and global chemical transport models (CTMs) generally under-predict organic aerosol mass in the atmosphere compared to field measurements, suggesting the presence of as-yet unidentified sources or unaccounted for physical processes. A common approach to treating multiphase chemistry in large-scale atmospheric models is to split individual process across a collection of ‘modules’ that treat, for example, gas-phase chemistry, the partitioning of inorganic species and acid–base chemistry, the partitioning of organic species to the condensed phase, aqueous chemistry in cloud droplets, etc. Progress towards the goal of investigating the multiphase NH3–organics system using results from a recently completed field campaign and a mechanism developed in collaboration with researchers performing laboratory experiments on this system required a rethinking of this approach to treating multiphase chemical systems in atmospheric models. This effort led to the development of the Chemistry Across Multiple Phases (CAMP) framework, which answers several key questions in atmospheric modelling, including: • How do you describe multiphase atmospheric chemical systems in code in a way that is independent of how a host model treats aerosol systems (e.g., size bins, modes, single particles, etc.)? • How do you allow a multiphase chemical system to be solved as a single system, thus avoiding artifacts related to operator splitting? • How do you facilitate the rapid transfer of multiphase chemical knowledge from laboratory results to atmospheric models? CAMP makes significant progress towards answering these questions in an innovative way.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Atmospheric particulate matter reduces visibility, adversely affects human health and impacts Earth’s climate. Recent laboratory research has identified NH3 as a potentially important reactive species in the formation and aging of SOA, a significant but not-well-quantified class of aerosol particles. The goal of this proposal is to answer the questions: How does NH3 affect aerosol mass loadings and optical properties on a global scale? And, what impact do these effects have on air quality and climate? This will be accomplished by incorporating NH3-related SOA chemistry, currently being investigated by collaborators at the University of California, Irvine (UCI) into the state-of-the-art CACM/MPMPO SOA module. The updated module will be deployed in the NMMB/BSC global chemical weather model, maintained at the Barcelona Supercomputing Center (BSC). Model predictions will be validated by field measurements collected during an IDAEA-CSIC campaign that the experienced researcher (ER) will participate in, as part of this proposal. This will result in one of the most advanced SOA treatments available in global models, and allow an investigation of the impact of NH3 on global SOA, air quality and climate, thus directly impacting a crosscutting issue of the Horizon 2020 Program, climate action. The ER has experience using laboratory results to develop mechanisms for aerosol processes, and in the development of CACM/MPMPO as a graduate and postdoctoral researcher at UCI. This experience, coupled with training in global model development at BSC, will provide ideal conditions to successfully execute this proposal, and strengthen the collaboration between the European BSC and IDAEA-CSIC, and US-based UCI teams. By the end of the Fellowship, the ER will have hands-on experience in field, laboratory and computational aerosol research, uniquely positioning him to develop and carry out comprehensive, collaborative research initiatives and opening up improved career opportunities.

Оригинален текст от CORDIS (на английски).

Участници

BARCELONA SUPERCOMPUTING CENTER CENTRO NACIONAL DE SUPERCOMPUTACION · BARCELONAКоординаторИспания