download pdf - Institut für Umweltphysik - Ruprecht-Karls-Universität ...

70 CHAPTER 2. ATMOSPHERE AND REMOTE SENSING
Subprojects The various projects can be classified according to their spectral range, viewing geometry,
and analysis method.
UV/vis DOAS for Nadir viewing geometry: The main target is the determination of global maps of
tropospheric trace gas distributions like NO2, BrO, H2O, HCHO, SO2. Curently measurements of
GOME and SCIAMACHY are under investigation.
NIR DOAS for Nadir viewing geometry: The main target is the determination of global maps of
tropospheric trace gas distributions like CH4, CO2, and CO. Measurements in the near IR spectral
range are caried out only by SCIAMACHY.
Cloud retrieval for Nadir viewing geometry: The main target is the determination of global maps of
cloud cover (effective cloud fraction) from broad band spectral measurements. From the combination
with narow band absorption measurements of O4 and O2, also additional parameters like cloud top
height can be retrieved.
UV/vis DOAS for limb viewing geometry: The main target is the determination of vertical profiles of
stratospheric trace gases like O3, NO2, BrO, and OClO. Measurements in limb viewing geometry are
caried out only by SCIAMACHY.
3-D radiative transfer modelling: Detailed radiative transfer modelling is the prerequisite for the corect
interpretation of the results of the spectral analysis. The full spherical 3-dimensional Monte Carlo
model is developed and operated in our group. Also a detailed scheme for the simulation of radiative
properties of aerosols is developed.
Validation of satellite data with independent DOAS observations are caried out from several ground
based stations (Kiruna, Paramaribo, Neumayer) as well as from aircrafts and ships.
Intensive interaction and cooperation exists with various international groups, e.g. Uni Bremen, IASB
Brussels, Uni München, SRON Utrecht, KNMI Utrecht, EUMETSAT
Publications
Peer Reviewed Publications
1. Frankenberg et al. [2005a]
2. Frankenberg et al. [2005c]
3. Frankenberg et al. [2005b]
4. Heue et al. [2005]
5. Hollwedel et al. [2004]
6. Khokhar et al. [2005]
7. Kühl et al. [2004]
8. Richter et al. [2005]
9. Wagner et al. [2005a]
10. Wagner et al. [2004]
11. Wagner et al. [2005b]
Grey Publications
1. Grzegorski et al. [2004]
2. Heue et al. [2004]
3. Marbach et al. [2004]
4. ACCENT [2005]
5. Wilms-Grabe et al. [2004]