Evaluation of tropospheric SO₂ retrieved from MAX-DOAS measurements in Xianghe, China

As can be seen, the diurnal behaviour of the retrieved HCHO DSCDs has a large dependence on the source of the Ring cross- section used in the DOAS fit, and the corresponding HCHO

Vertical and slant tropospheric NO 2 -columns from the new satellite instrument SCIA- MACHY on ENVISAT are validated by measurements of the Airborne Multi AXis DOAS

Interestingly, multi- year-averaged monthly means of X NO 2 and X HCHO increase towards the end of the dry season at the Pico Espejo site, suggesting that both trace gases

However, in previous field measurements that used a zenith viewing DOAS instrument on a mobile platform, emissions were estimated by first taking a “clean- air” spectrum at some

While the tropospheric NO 2 vertical column densities (VCDs) ob- served by OMI on board EOS-Aura satellite agreed with those by MAX-DOAS, the 3-D chemical transport model

The retrieval of the aerosol optical properties is addressed and external information is included, however the influence of the aerosols on the O 4 slant column is outweighed by a

The two points considered at the alternate sides, of the tangents through the diameter of the circle, and then the line joining these points divides the circle

ing a “clean-air” spectrum at some point along the measurement path and using it as a reference spectrum to obtain di ff erential vertical columns relative to this