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There will be a planned maintenance on a GSFC network on Sunday, April 26th, 2015 from 12:00pm until 12:00am CDT.  The GES DISC services including data access, data search and analysis tools and the website ( may not be accessible during this maintenance window.

Chlorine Nitrate

Other Names



Chlorine Nitrate (ClONO2) is of importance as a reservoir species (more abundant stable compound) for reactive chlorine and nitrogen in the lower and middle stratosphere.
It is formed in the molecular reaction of ClO with NO2 and is destroyed via photolysis by near-UV solar radiation. ClONO2 reacts rapidly with HCl on polar stratospheric clouds and aerosol particles during polar night and provides active chlorine, which depletes local ozone.


(1) Atmospheric Chemistry Models (3) Polar Atmospheric Processes
(2) Monitoring of Ozone Layer (4) Tropospheric-Stratospheric Exchanges

GES DISC Datasets

Quick Search for 'Chlorine Nitrate' with Mirador
Click on the corresponding 'Data access' links in the table below to access products containing specific parameter.

Parameter Units Platform /Instrument Data Products
Begin Date End Date Data Access Doc
Profiles of ClONO2 at ground pixel resolution mixing ratio Aura/HIRDLS 2004-07-15 Current HIRDLS2 Y
Profiles of ClONO2 , global gridded mixing ratio Aura/HIRDLS 2004-07-15 Current   Y
UARS/CLAES 1991-10-25 1993-05-05 UARCL3AT Y
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Last updated: Dec 02, 2011 03:21 PM ET