3.8 Article

Satellite observations and modelling of hydrogen cyanide in the Earth's atmosphere

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SOC ITALIANA FISICA
DOI: 10.1393/ncc/i2022-22184-6

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  1. Central England NERC Training Alliance (CENTA) Doctoral Training Programme (UK Natural Environment Research Council)
  2. National Centre for Earth Observation (NCEO)

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This study presents observations of HCN during the 2015 Indonesian peatland fires using the IASI satellite instrument, and investigates HCN variability using a updated version of the TOMCAT CTM.
Hydrogen cyanide (HCN) is one of the most abundant cyanidespresent in the global atmosphere, and is a tracer of biomass burning, especially forpeatland wildfires. In this work we present observations of HCN during the 2015Indonesian peatland fires from the IASI (Infrared Atmospheric Sounding Interfer-ometer) satellite instrument. We also investigate HCN variability using an updatedversion of the TOMCAT three-dimensional (3-D) chemical transport model (CTM),which is evaluated using HCN profiles measured by the Atmospheric ChemistryExperiment Fourier Transform Spectrometer (ACE-FTS) and FTIR ground-basedinstruments in the NDACC (Network for the Detection of Atmospheric CompositionChange) network. Here, we compare model simulations with the IASI measurements over Indonesia

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