VPICO Presentation METHANE-To-Go-Europe
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Chart 9 > EGU 21-5912 > Klausner et al. ⚫ VPICO presentation > April 28, 2021
2.2) Sentinel-5 Precursor (S5P) with TROPOMI instrument
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ESA satellite Sentinel-5P launched in October 2017
-multichannel spectrometer TROPOMI (UV-VIS-NIR, SWIR)
-measuring Vertical Column Density (VCD) of O3, NO2, HCHO,
SO2 CO2, CH4, aerosols and clouds
2,
Specifications
-polar orbit, 14-15 Orbits/day
-equator passing: 13:30 h (local)
-swath: 2600 km wide daily global coverage
-pixel resolution: 5.5 x 3.6 km² (at the beginning: 7 x 3.5 km²)
• SO2 Retrieval
-band 3 (310-405 nm)
-besides TROPOMI operational product also COBRA product
which improves low SO 2 VCDs (<~0.25 DU)
-VCD via air mass factor (AMF), knowledge on the SO2 vertical
profile needed
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TROPOMI mean SO2 (April 2018 to March 2019) smoothed by
oversampling techniques with R=30 km. (Fioletov et al., 2020)
TROPOMI, April 2018 - March 2019
-1.2 -0.48 -0.24 0 0.24 0.48
0.8
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4.8 DUView entire presentation