KNMI Broeikasgassen, aërosolen en luchtkwaliteit

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Broeikasgassen, aërosolen en luchtkwaliteit

Kenniscentrum

Broeikasgassen, aërosolen en luchtkwaliteit

06-08-10 Aërosolen en de Afrikaanse moesson

Er bestaat een sterke relatie tussen de hoeveelheid aërosolen in de atmosfeer en regenval. Deze relatie is bestudeerd boven Afrika, het continent waar jaarlijks de grootste hoeveelheid woestijnzand de atmosfeer wordt ingeblazen en rook van vegetatiebranden voor een bijna continue productie van ...

26-04-10 Stoeien met koeien

Bij de vertering van voedsel in de pens van een koe ontstaat dagelijks ongeveer 300 gram van het broeikasgas methaan. Laten we daar eens mee stoeien om een idee krijgen van het klimaateffect van een lapje rundvlees. Voeg daarbij in dit stukje vóór elk getal het woord ‘ongeveer’ toe.

24-06-10 Satellite observations of air quality, climate and volcanic ...

Figure 1. World map of the averaged tropospheric NO2 column measured by OMI in the period May 2006 till February 2007.

Satellite observations of atmospheric constituents have many applications in the area of climate research, air quality monitoring and security. Here, we will focus on the satellite observations of two important trace gases, NO2 and SO2. Applications are air quality monitoring and support to ...

23-06-10 Assessing methane emissions from global spaceborne ...

Figure 1. The decrease in the methane growth rate. Top: Global average methane mixing ratios (blue line) determined from the NOAA/GMD cooperative air sampling network (since 1984). The red line represents the long term trend. Bottom: Global average growth rate for methane. Source: Dr. Ed Dlugokencky, NOAA/ESRL; http://www.esrl.noaa.gov/gmd/.

In the past two centuries, atmospheric methane (CH4) concentrations have more than doubled. Despite the about 20o times smaller atmospheric burden of methane compared to carbon dioxide (CO2) this increase constitutes about 20% of the anthropogenic climate forcing by greenhouse gases (0.48 ±0 ...

23-06-10 Impact of emissions from shipping, aviation and road traffic ...

Figure 1.
Zonal mean background distribution of ozone, and the perturbations caused by aviation, road traffic, shipping, resp. all transport modes together, for July 2003. Units are ppbv.
The colour scales of the perturbation plots are identical, but different from the plot of the background distribution.

Fossil fuel combustion by aviation, shipping and road traffic contributes about one fifth of the total global anthropogenic emissions of CO2. These emissions are growing more rapidly than those by other sectors such as power generation and industry. This rapid growth could make it difficult to meet ...

28-06-10 Scientific highlights of SCIAMACHY and OMI

Figure 1. Global frequency distribution of cloud pressure
from SCIAMACHY using the FRESCO O2 A-band algorithm
for five months of 2002. Note the bimodal shape, with
modes at about 850 hPa and 500 hPa.

The Netherlands is actively involved in atmospheric composition measurements from space since 1995 with measurements from the GOME, SCIAMACHY and OMI satellite instruments. The MetOp satellite series with GOME-2 onboard will continue these measurements until 2020, thereby providing an important ...

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