English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

TroposphericNO2 plays a variety of significant roles in atmospheric chemistry. In the troposphere it is one of the mostsignificant precursors of photochemical ozone (O3) production andnitric acid (HNO3). In this study tropospheric NO2columns were calculated by the fully coupled chemistry-climate modelECHAM4.L39(DLR)/CHEM. These have been compared with tropospheric NO2columns, retrieved using the tropospheric excess methodfrom measurements by the Global Ozone Monitoring Experiment (GOME) of up-welling earthshine radiance and the extraterrestrialirradiance. GOME is part of the core payload of the second European Research Satellite (ERS-2). For this study the first five years of GOMEmeasurements have been used. The period of five years of observational data is sufficiently long to facilitatefor the first time a comparison based on climatological averages with global coverage, focussing on thegeographical distribution of the troposphericNO2. A new approach of analysing regional differences (i.e. on continental scales) by calculating individual averages for different environmentsprovides more detailed information about specific NOxsources and of their seasonal variations. The results obtained enable the validity of the modelNO2source distribution and theassumptions used to separate tropospheric and stratospheric parts of the NO2column amount from the satellite measurements to beinvestigated

Tropospheric NO&lt;sub&gt;2&lt;/sub&gt; columns: a comparison between model and retrieved data from GOME measurements

Tropospheric NO<sub>2</sub> columns: a comparison between model and retrieved data from GOME measurements