Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Standardfoliensatz-Englisch >26.04.2006 Folie 1 My Work at the German Aerospace Center pl:...
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Transcript of Standardfoliensatz-Englisch >26.04.2006 Folie 1 My Work at the German Aerospace Center pl:...
Folie 1Standardfoliensatz-Englisch >26.04.2006
My Work at the
German Aerospace Centerpl: Niemieckie Centrum Badań Lotniczych i Kosmicznychde: Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Arthur Schady
Standardfoliensatz-Englisch > 20.04.2006
Folie 2
Mission of DLR
To open up new dimensions for exploring the earth and the universe, for protecting the environment and for promoting mobility, communication and security:
Research portfolio ranging from basic research to innovative applications and the products of tomorrow
Operating large-scale research facilities for DLR’s own projects and as a service provider for its clients and partners
Promoting the next generation of scientists
Standardfoliensatz-Englisch > 20.04.2006
Folie 3
European networking
Success in obtaining program funding from the European Union
Core formation in Europe for clearly defined strengthening of technical expertise and competitiveness
Expand the ability to determine the direction taken at European level
Standardfoliensatz-Englisch > 20.04.2006
Folie 4
International networking
Orienting bilateral cooperation
Multilateral cooperation in determining the framework and marketing of DLR products
Further developing instruments of international cooperation
Standardfoliensatz-Englisch > 20.04.2006
Folie 9
Transport
Resolving issues related to mobility, influencing and coping with the increase in transport
Energy saving, reducing pollutants that affect the climate and are harmful to the health and lowering noise emissions
Accident prevention, reducing the risks to people from accidents
Standardfoliensatz-Englisch > 20.04.2006
Folie 10
Visiting Scientist at DLR in Oberpfaffenhofen since 1.May 2006
My working fields:
NO2 related Data Analysis (http://www.pa.op.dlr.de/troccinox/)
Acoustic Modeling (http://www.pa.op.dlr.de/acoustics/)
Standardfoliensatz-Englisch > 20.04.2006
Folie 11
NO2 related Data Analysis (TROCCINOX)
Satellite Data (SCIAMACHY)
Model Data (TM4)
Emission Data (EDGAR, MESSy, GEIA,…)
Deposition Data
Lightning Data (LIS/OTD)
Number of Data sets: 6+2+6+1+9 = 24
Number of different formats: 9
Number of produced images: 724 - 981
Standardfoliensatz-Englisch > 20.04.2006
Folie 12
NO2 related Data Analysis Satellite Data (SCIAMACHY)http://www.iup.physik.uni-bremen.de/sciamachy/
Observation of the Earth:
Vertical Column of NO2 at 10:30 LT
FORMAT: ASCII
Dimensions: IM=440, JM=400, time=28 and 31 days , cloudy, clear
Unit: molecules / cm²
FORTRAN : preparing data for model comparison (grid average)
Standardfoliensatz-Englisch > 20.04.2006
Folie 13
NO2 related Data Analysis Satellite Data (SCIAMACHY)http://www.iup.physik.uni-bremen.de/sciamachy/
Standardfoliensatz-Englisch > 20.04.2006
Folie 14
NO2 related Data Analysis Model Data (TM4) http://www.knmi.nl/~velthove/tm.html
Simulation of LNOx with different
source rates 2Tg and 5Tg
FORMAT: netCDF
Dimensions: IM=120, JM=90, KM=30, time=28 and 30 days
Unit: molecules / cm³
FORTRAN/CDO: vertical integration of 3D field;
calculation of tropospherical NO2
4
Standardfoliensatz-Englisch > 20.04.2006
Folie 15
NO2 related Data Analysis Model Data (TM4) http://www.knmi.nl/~velthove/tm.html 4
Standardfoliensatz-Englisch > 20.04.2006
Folie 16
NO2 related Data AnalysisEmission Data (EDGAR, MESSy, GEIA,…)http://www.mnp.nl/edgar/ http://www.messy-interface.org/
http://www.geiacenter.org/
Analysis of different sources
FORMATS: ASCII; netCDF; binary
Dimensions: IM=360, JM=180, time= different years
source categories (7 / 23)
Unit: molecules / cm²/s ….
FORTRAN/CDO: integration of the fields;
time series …
Standardfoliensatz-Englisch > 20.04.2006
Folie 17
NO2 related Data AnalysisEmission Data (EDGAR, MESSy, GEIA,…)
Standardfoliensatz-Englisch > 20.04.2006
Folie 18
NO2 related Data Analysis Deposition Datahttp://www-eosdis.ornl.gov/cgi-bin/dataset_lister.pl?p=5
Global Maps of Atmospheric Nitrogen Deposition, 1860, 1993, and 2050
Dentener, F. J. 2006. Global Maps of Atmospheric Nitrogen Deposition, 1860, 1993, and 2050. Data set. Available on-line [http://daac.ornl.gov/] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.
Galloway, J. N., F. J. Dentener, D. G. Capone, E. W. Boyer, R. W. Howarth, S. P. Seitzinger, G. P. Asner, C. Cleveland, P. Green, E. Holland, D. M. Karl, A. F. Michaels, J. H. Porter, A. Townsend, and C. Vörösmarty. 2004. Nitrogen Cycles:ast, Present and Future. Biogeochemistry 70: 153-226.
Standardfoliensatz-Englisch > 20.04.2006
Folie 19
NO2 related Data Analysis Deposition DataGlobal Maps of Atmospheric Nitrogen Deposition, 1860, 1993, and 2050
Nit
rog
en
De
po
sit
ion
La
nd
Se
a 1
99
3
0,0
E+
00
2,0
E+
09
4,0
E+
09
6,0
E+
09
8,0
E+
09
1,0
E+
10
1,2
E+
10
1,4
E+
10
1,6
E+
10
1,8
E+
10
-88
-73
-58
-43
-28
-13
2
17
32
47
62
77
La
titu
de
N-Depos [mgN/m/a]
tot1
99
3
land
19
93
se
a1
99
3
Standardfoliensatz-Englisch > 20.04.2006
Folie 20
NO2 related Data Analysis Lightning Data (LIS/OTD)http://ghrc.msfc.nasa.gov/
http://thunder.nsstc.nasa.gov/
LISOTD_HRFC_v1.0.hdfLISOTD_HRMC_V2.2.hdfLISOTD_LRACTS_v0.1.hdfLISOTD_LRADC_V2.2.hdfLISOTD_LRDC_v1.0.hdfLISOTD_LRDC_V2.2.hdfLISOTD_LRTS_V2.2.hdfLISOTD_LRMTS_V2.2.hdf
OTD (Optical Transient Detector)
+ LIS (Lightning Imaging Sensor)
FORMAT: HDF
Dimensions: IM=720, JM=360, time= OTD-only window (5/95-11/97), the overlap window (12/97-4/00) and the LISonly window (12/97-present)
Unit: flashes/s or flashes /km²/day
IDL / FORTRAN : calculation for selected, regions, time
Standardfoliensatz-Englisch > 20.04.2006
Folie 21
NO2 related Data Analysis Lightning Data (LIS/OTD)
OTD/LIS
30,0
40,0
50,0
60,0
70,0
Apr
il 94
Apr
il 95
Apr
il 96
Apr
il 97
Apr
il 98
Apr
il 99
Apr
il 00
Apr
il 01
Apr
il 02
Apr
il 03
Apr
il 04
Apr
il 05
Apr
il 06
Apr
il 07
time [seasonal]
fl/s
Ming time series yearly flash rate total time seriesyearly mean [1996-2005] OTD / LIS
30,00
35,00
40,00
45,00
50,00
55,00
60,00
1 2 3 4 5 6 7 8 9 10 11 12
month of the year
fla
sh
es
ra
te s
-1
Standardfoliensatz-Englisch > 20.04.2006
Folie 22
A380/A747 flights on 20 July and 23 August 2006- noise measurements -
Standardfoliensatz-Englisch > 20.04.2006
Folie 23
source
Wave frontWave lenght
Sound ray
Pressure amplitude
Longitudinal Pressure oscillation = waveoscillation direction is parallel to propagation direction
From :www.bayern.de/lfu/laerm/l-ausst/laerm3.htm
impulse → pressure oscillation - no flow
Acoustics: sound waves
Standardfoliensatz-Englisch > 20.04.2006
Folie 24
Acoustics: Sound waves
physical value symbol unit formula
frequency f = 1/T Hz = 1/s f = c / λ
wavelength λ m λ = c / f
time period or cycle duration
T = 1/f s T = λ / c
wave speed c m/s c = λ × f
Standardfoliensatz-Englisch > 20.04.2006
Folie 25
Acoustics: Sound waves
Diffraction
Attenuation sound amplitude decreas
Reflection
Refraction
Standardfoliensatz-Englisch > 20.04.2006
Folie 27
temperature
wind
turbulence
topography
sound field
refraction
absorption
reflexion diffractionshadowing effects
energymomentum
mass
scatteringhumidity
)cos()()()( zVzczceff
)( /)( zTRcczc vdvp
))(608.01()()( zqzTzTv
Acoustics: Sound propagation in the atmosphere
Standardfoliensatz-Englisch > 20.04.2006
Folie 28
Acoustics: Sound propagation model
Aku3D(Heimann & Blumrich)