Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-16-0367.1 |
Regionally Resolved Diagnostic of Transport: A Simplified Forward Model for CO2 | |
Konopka, Paul; Ploeger, Felix; Tao, Mengchu; Riese, Martin | |
2017-08-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Simply diagnostic tools are useful for understanding transport processes in complex chemistry transport models (CTMs). For this purpose, a combined use of the airmass origin fractions (AOFs) and regionally resolved mean ages (RMAs) is presented. This approach merges the concept of the origin of air with the well-known theory of the mean age of air (AoA) for different regions covering the whole Earth. The authors show how the AoA calculated relative to Earth's surface can be decomposed into regionally resolved components (i.e., into RMAs). Using both AOFs and RMAs, the authors discuss differences in the seasonality of transport from the Northern and Southern Hemispheres into the tropical tropopause layer (TTL), the asymmetries of the interhemispheric exchange, and differences in relation to the continental or oceanic origin of air. Furthermore, a simplified transport model for a chemically passive species (tracer) is formulated that has some potential to approximate the full transport within a CTM. This analytic approach uses the AOFs as well as the RMAs as parameters to propagate a tracer prescribed on Earth's surface (lower boundary condition). This method is exactly valid for sources that change linearly with time in each of the considered regions. The authors analyze how well this approach approximates the propagation of CO2 from the planetary boundary layer (PBL) into the whole atmosphere. The CO2 values in the PBL are specified by the CarbonTracker dataset. The authors discuss how this approach can be used for inverse modeling of CO2. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409133100015 |
WOS关键词 | TROPICAL TROPOPAUSE LAYER ; AIR-MASS ORIGIN ; STRATOSPHERIC TRANSPORT ; AGE ; DISTRIBUTIONS ; SURFACE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29227 |
专题 | 地球科学 |
作者单位 | Forschungszentrum Julich, IEK 7, Julich, Germany |
推荐引用方式 GB/T 7714 | Konopka, Paul,Ploeger, Felix,Tao, Mengchu,et al. Regionally Resolved Diagnostic of Transport: A Simplified Forward Model for CO2[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(8). |
APA | Konopka, Paul,Ploeger, Felix,Tao, Mengchu,&Riese, Martin.(2017).Regionally Resolved Diagnostic of Transport: A Simplified Forward Model for CO2.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(8). |
MLA | Konopka, Paul,et al."Regionally Resolved Diagnostic of Transport: A Simplified Forward Model for CO2".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.8(2017). |
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