A database of methane concentrations as measured in the Netherlands and Europe
In order to increase our knowledge of methane emissions on a small scale the project 'Sources, regional scaling and validation of CH4 emissions from the Netherlands and Northwest Europe' is carried out in the framework of Phase 2 of the National Research Program on Global Air Pollution and Climate Change (NRP-2).
This project aims at the development of a validated CH4 emission database on a scale of 5x5 km and 25x25 km for the Netherlands and Europe respectively for the main source categories. CH4 emissions are validated in this project by comparing results of atmospheric models which use this emission database as an input, with measured CH4 concentrations. In this report the data of methane measurements at 4 locations in the Netherlands and 3 locations in Northwest Europe over the period 1990-1994 are gathered and reported.
Besides data on CH4 concentrations also meteorological data as measured by KNMI near the measuring sites in the Netherlands are included in the database. The sources of the data, their formats, the procedures to process the data, the databases which are constructed to include the data in a systematic way and time series of the CH4 measurements over the period 1990-1994 are described in this report.
|Author(s)||Janssen LHJM ; Wal JT van der ; Hollander JC ; Vermeulen A ; Vosbeek MEJP|