Other Names
OH, Hydroxyl Radical
Definition
The hydroxyl radical, OH, is responsible for the oxidation of most of the
compounds that are released into, or formed in, the atmosphere.
In the the presence of organic matter (VOC), the hydroxyl radical is an
intermediate in the formation of photochemical smog) In relatively unpolluted air, the
photolysis of ozone or water (H2O) leads to hydroxyl radical formation. In
the lower atmosphere it is formed by the reaction of excited oxygen atoms O(1D) with
water or by the reaction of hydroperoxyl radicals with nitric oxide. In the stratosphere
it is involved in ozone-destroying catalytic cycles.
Applications
| (1)
Atmospheric Chemistry Models |
(5)
Tracer of Air Motions |
| (2)
Air Quality |
(6)
stratosphere-troposphere exchange |
| (3)
Monitoring of Biomass Burning |
(7)
Climate Change |
| (4)
Health and Environment |
|
GES DISC Datasets
Quick Search for 'Hydroxyl' with Mirador
Click on the corresponding 'WHOM access' links in the table below to access products containing specific parameter.
| Begin Date |
End Date |
WHOM Access |
Doc |
| Profiles of Hydroxyl Radical (OH) (mixing ratios at different pressure levels); pixel resolution |
vmr |
Aura/MLS
|
2004-08-08 |
Current |
ML2OH.002
|
Y
|
| Profiles of Hydroxyl Radical (OH) (mixing ratios at different pressure levels); global gridded |
vmr |
Aura/MLS
|
2004-08-08 |
Current |
|
Y
|
Other sources for data
Atmos Composition
