Jan Fokke Meirink

TL;DR: In this paper, a major revision of the SCIAMACHY retrievals was reported, which improved the consistency between observed and assimilated column average mixing ratios and the agreement with independent validation data.

TL;DR: This work retrieved the global methane distribution by using spaceborne near-infrared absorption spectroscopy and observed unexpectedly high methane concentrations over tropical rainforests, revealing that emission inventories considerably underestimated methane sources in these regions during the time period of investigation.

TL;DR: Frankenberg et al. as discussed by the authors extended the analysis of a global CH_4 data set retrieved from SCIAMACHY by making a detailed comparison with inverse TM5 model simulations for 2003 that are optimized versus high accuracy CH-4 surface measurements from the NOAA ESRL network.

TL;DR: In this article, the results obtained from observations of the up-welling radiation in the near-infrared by SCIAMACHY on board ENVISAT are presented, where vertical columns of CH4, CO2 and oxygen have been retrieved and the (air or) O2-normalised CH4 and CO2 column amounts, the dry air column averaged mixing ratios XCH4 and XCO2 derived.

TL;DR: In this paper, the vertical column density of methane is converted to column averaged mixing ratio by using carbon dioxide retrievals as proxy for the probed atmospheric column, and the global measurements with global coverage over continents are compared with model results from the chemistry-transport model TM4.