 |
| Titel |
Monitoring the NOx Emissions for the EC National Emissions Ceiling Directive using Satellite Remote Sensing |
| VerfasserIn |
Pepijn Veefkind, Folkert Boersma, Ronald van der A, Gerard Hoek, Pieternel Levelt |
| Konferenz |
EGU General Assembly 2011
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250048243
|
|
|
|
|
|
| Zusammenfassung |
| The EC National Emissions Ceiling directive (NECD) requires all 27 member states of the
European Union to report information annually concerning emissions and projections for four
main air pollutants: sulphur dioxide (SO2), nitrogen oxides (NOx), non-methane volatile
organic compounds (NMVOCs) and ammonia (NH3). These pollutants harm both human
health and the environment by contributing to formation of ozone and particulate matter and
by causing acidification and eutrophication. To help protect human health and the
environment, the NECD sets pollutant-specific and legally binding emission ceilings
for each of these pollutants and for each EU member state, which must be met
by 2010 and thereafter. The member states report the total emissions for the four
main air pollutants based on bottom-up inventories. The most recent NECD status
report of 2009 shows that for the NOx emissions 11 of the 27 member exceed the
emission ceiling, while for the other three pollutants only a few exceedances are
reported.
In addition to bottom-up inventories on which the NECD is based, the NOx emissions can
also be estimated from satellite observations. The use of satellite remote sensing has several
advantages, including: A single instrument and retrieval method can be applied for all the
regions, thus the results can be compared directly; Emissions based on satellite data are
representative for the actual conditions, whereas inventories always lagging behind;
High-quality satellite data is readily available and the effort for deriving the emissions is
limited.
In this contribution we present estimates of the NOx emissions for the EU member states
for the period 2005 - 2010 based on observations of the Ozone Monitoring Instrument (OMI).
The emissions are derived from the monthly mean NO2 concentrations in combination with
estimates of the NO2 lifetime based on temperature information. First results indicate that the
method is in good agreement with the bottom-up estimates for most EU member states.
We will present the trend in the NOx emissions for selected EU member states
for the period 2005-2010 and compare them with the NECD reports and ceilings. |
|
|
|
|
|
|