The hydroxyl radical plays an important role in the tropospheric chemistry. Due to its low concentrations and high reactivity it is hard to measure in-situ. Using indirect methods, like satellite remote sensing data, enables us to make an estimate of the global oxidising capacity. For this study we used GOME satellite data. The primary production rates of OH were calculated for the first three days of August 1999, for a wide latitude band between 70 °N and 55 °S. We also indicate the uncertainty that is connected with the production rate values due to the uncertainties in the input data. The calculated primary OH production rate was found to be highest around 2 km (0.7 ppt s-1) and its uncertainty ranges between 20 and 50 %, mostly due to the high standard deviation in the ozone climatology used for the calculation.
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- Assessment of the Global Distribution of Tropospheric OH Radical Production from GOME Observations
Olaf N.E. Tuinder
- Springer Berlin Heidelberg