Co-occurrence of extreme ozone and heat waves in two cities from Morocco
Journal Title: Satellite Oceanography and Meteorology - Year 2018, Vol 3, Issue 2
Abstract
Temperature is the first meteorological factor to be directly involved in leading ozone (O3) extreme events. Generally, upward temperatures increase the probability of having exceedance in ozone adopted thresholds. In the global climate change context more frequent and/or persistent heat waves and extreme ozone (O3) episodes are likely to occur during in coming decades and a key question is about the coincidence and co-occurrence of these extremes. In this paper, using 7 years of surface temperature and air quality observations over two cities from Morocco (Casablanca and Marrakech) and implementing a percentile thresholding approach, we show that the extremes in temperature and ozone (O3) cluster together in many cases and that the outbreak of ozone events generally match the first or second days of heat waves. This co-occurrence of extreme episodes is highly impacted by humidity and may be overlapping large-scale episodes.
Authors and Affiliations
Kenza KHOMSI, Houda NAJMI, Zineb SOUHAILI
Keywords
Related Articles
- EP ID EP678921
- DOI -
- Views 221
- Downloads 0
Correlation between meridional migration of the East Asian jet stream and tropical convection over Indonesia in winter
The relationship between tropical convective activities and meridional (north-south) migration of the East Asian jet stream (EAJS) in winter (December-February) is investigated for improving our knowledge of processes af...
Co-occurrence of extreme ozone and heat waves in two cities from Morocco
Temperature is the first meteorological factor to be directly involved in leading ozone (O3) extreme events. Generally, upward temperatures increase the probability of having exceedance in ozone adopted thresholds. In th...
Satellite-based study of physico-optical properties of aerosols over a westernmost location of Brahmaputra valley
This study examines the long term trend of the radiatively active atmospheric aerosols which can influence the Earth’s energy budget directly by scattering and absorbing radiation and indirectly by acting as cloud conden...
Impacts of model resolution on simulation of mesoscale eddies in the Northeast Pacific Ocean
The model simulated meso-scale eddies in the Northeast Pacific Ocean, using two models with nominal horizontal resolutions of 1/12° and 1/36° in latitude/longitude (grid spacing of 7.5 km and 2.5 km), respectively, are p...
Annual sea level variations off Atlantic Canada from satellite altimetry
Annual cycle of sea level off Atlantic Canada has been investigated based on a merged satellite altimetry dataset and a monthly temperature and salinity dataset. The altimetric results were compared with coastal tide-gau...