EGU2020-18569
https://doi.org/10.5194/egusphere-egu2020-18569
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

IASI observations at the city scale

Sarah Safieddine1, Maya George1, Cathy Clerbaux1,2, Ana Paracho1, Anne Boynard1, Juliette Hadji-Lazaro1, Lieven Clarisse2, Simon Whitburn2, and Pierre-Francois Coheur2
Sarah Safieddine et al.
  • 1LATMOS/IPSL, Sorbonne Université, UVSQ, CNRS, Paris, France (sarah.safieddine@latmos.ipsl.fr)
  • 2Université libre de Bruxelles (ULB), Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Brussels, Belgium

IASI is a versatile mission, allowing the measurement of both meteorological parameters such as temperature and atmospheric composition for infrared absorbing species. With its long observation record and frequent overpasses, IASI is able to follow changes at different spatial scales. We studied IASI’s capability to track the anthropogenic signature associated with large cities, both in terms of temperature fingerprint (urban heat islands) and carbon monoxide (CO) content, a good tracer of human activity (transport, heating, and industrial activities). For this study we averaged the IASI data available since the launch of the first IASI, in order to increase the signal to noise, and allow discriminating the city from its surroundings. For skin temperatures we show that some cities experience much warmer temperatures than nearby rural areas, with day and night differences, whereas other urban areas appear as cold urban islands when surrounded by deserts Examples will be shown and compare with MODIS observations. For CO emitted by human activities, we identified some cities that stand out from their background, and were able to compare their CO associated signatures with measurements provided by other available spaceborne instruments such as Mopitt and TROPOMI.

How to cite: Safieddine, S., George, M., Clerbaux, C., Paracho, A., Boynard, A., Hadji-Lazaro, J., Clarisse, L., Whitburn, S., and Coheur, P.-F.: IASI observations at the city scale, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-18569, https://doi.org/10.5194/egusphere-egu2020-18569, 2020