Impact on Users
Mass density of air
You will be aware that in the past we offered chemical and aerosol species expressed as mass mixing ratios. Some of our users are however interested in mass concentration fields of chemical species.
Due to data licence restrictions which govern most of ECMWF meteorological forecast data we are not able to offer temperature
Lowest model level
Another frequent request we receive is from users who are interested in surface Due to the nature of data organisation