Airborne aerosol and
black carbon measurements in the framework of the joint DLR-NASA project
Between 1 May and 21 May 2014, we were
involved in the NASA-led mission on Alternative Fuel Effects on
Contrails and Cruise Emissions (ACCESS-II) involving four research
aircraft including NASA's DC-8 and HU-25C Guardian, DLR's Falcon 20-E5,
and NRC's CT-133 research aircraft. The aim of ACCESS-II is to characterize
the emissions from and biofuels compared to regular jet fuels in
aviation and to investigate the impact of different fuel types on the
properties of aircraft contrails. The data collected during ACCESS-II
may aid to develop more environment-friendly aircraft fuels. For
ACCESS-II, the Falcon research aircraft was based at the Neil A.
Armstrong Flight Research Center in Palmdale, California.
Left: the DLR Falcon 20-E5 research
aircraft. Right: NASA's DC8 research aircraft.
Left: the Canadian T33 and the HU-25C Guardian probing the DC8's
exhaust. Right: view out of the Falcon during the research flight on 10
May 2014 over California (USA).
More detail on ACCESS-2 including videos
showing the different aircraft chasing the DC8 are given at the
NASA and DLR websites.
SCIENTIFIC GOALS OF AerCARE
Aerosol particles play a key role in
shaping conditions on the Earth’s surface and in the lower atmosphere.
Aerosol particles are frequently lifted into the free troposphere and
transported as elevated aerosol layers over long distances, even between
continents. However, the impacts of these aerosol layers on atmosphere
and climate are not yet known.
The main goal of AerCARE is the
systematic investigation and assessment of the climate impacts of
elevated aerosol layers arising from anthropogenic, including air
traffic, and natural sources.
On 27/28 May 2014, the 2nd SALTRACE data analysis workshop was held in
More details on the SALTRACE project are
given on the
SALTRACE project homepage.
Map showing the SALTRACE Falcon flight
tracks (red line) and the ground-based measurement sites. The main
SALTRACE site was on Barbados.
We received the DLR Science Award 2013 for our study
"On the visibility of
airborne volcanic ash and mineral dust from the pilot’s perspective in
flight" (see also
here, starting from minute 0:33h).
Our propsal on "A novel method to derive microphysical aerosol
properties from future satellite measurements" is selected for funding
Helmholtz-University Young Investigators Groups are intended to improve
an existing link between a Helmholtz Center and a University by
enhancing collaboration activities and knowledge exchange. AerCARE is a
cooperation between DLR Oberpfaffenhofen and the
University of Munich.
Group collaborates with national and international partners (e.g.
The AerCARE Group is funded by the
through the President’s Initiative and Networking Fund, and by DLR.