This methane emissions model was compared to Envisat data

Derived from the TM3 three-dimensional chemical tranport model, this animation shows model results of the column-averaged methane volume mixing ratio (VMR) in parts per billion for the time period of August through November 2003. A University of Heidelberg and KNMI team compared these model results to actual SCIAMACHY methane observations during the same period, discovering unexpectedly high methane concentrations over tropical land regions. Note the particular high methane levels shown in the model above the Ganges plain in summer months.