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68 CHAPTER 2. ATMOSPHERE AND REMOTE SENSING Laepple, T., Knab, V., Mettendorf, K.-U., & Pundt, I. 2004. Longpath DOAS tomography on a motorway exhaust plume: Numerical studies and application to data from the BAB II campaign. Atmos. Chem. Phys., 4, 1323 – 1342. Lösch, J. 2001. Bestimmung von NO2 und SO2 Emissionen von Kraftfahrzeugen mittels DOAS- Tomographie. Diplomarbeit, Institut für Umweltphysik, Universität Heidelberg, Germany. Mettendorf, K. U. 2005. Aufbau und Einsatz eines Multibeam Instrumentes zur DOAStomographischen Messung zweidimensionaler Konzentrationsverteilungen. Ph.D. thesis, Institut für Umweltphysik, Universität Heidelberg, Germany. Mettendorf, K. U., Hartl, A., & Pundt, I. 2005. An indoor test campaign of the Tomography Long Path Differential Absorption Spectroscopy (DOAS). J. Environ. Monit. accepted. Poehler, D., Rippel, B., Stelzer, A., Mettendorf, K. U., Hartl, A., Platt, U., & Pundt, I. 2005. Instrumental setup and measurement configuration for 2D-tomographic DOAS measurements of trace gas distributions over an area of a few square km. In: Proceedings of the 31st ”International Symposium of Remote Sensing of the Environment”, June 20-24, 2005, in St. Petersburg, Russia. ISPRS-publication(CD-ROM). Pundt, I. 2005a. DOAS (Differentielle Optische Absorptions- Spektroskopie)Messungen mit neuester Technologie. Invited talk at the DECHEMA/GDCH/DGB-Gemeinschaftsausschuss Chemie der Atmosphre, Frankfurt, 22.04.2005. Pundt, I. 2005b. DOAS tomography for the localisation and quantification of anthropogenic air pollution. Anal. Bioanal. Chem. accepted. Pundt, I., & Mettendorf, K. U. 2005. Multibeam long-path differential optical absorption spectroscopy instrument: a device for simultaneous measurements along multiple light paths. Appl. Opt., 44(23), 4985 – 4994. Pundt, I., Heue, K.-P., Song, B.-C., Wagner, T., Bruns, M., Burrows, J. P., Richter, A., & Wang, P. 2005a. Airborne tomographic measurements of NO2 Plumes from point sources using the AMAX- DOAS instrument. J. Geophys. Res. submitted. Pundt, I., Hak, C., Hartl, A., Heue, K.-P., Mettendorf, K. U., Platt, U., Poehler, D., Rippel, B., Song, B.-C., Stelzer, A., Wagner, T., Bruns, M., Burrows, J. P., Richter, A., & Wang, P. 2005b. Mapping of tropospheric trace gas concentration distributions from ground and aircraft by DOAStomography (Tom-DOAS). In: Proceedings of the 31st ”International Symposium of Remote Sensing of the Environment”, June 20-24, 2005, in St. Petersburg, Russia. ISPRS-publication(CD-ROM). Pundt, I., Mettendorf, K. U., Laepple, T., Knab, V., Xie, P., Lösch, J., Friedeburg, C. von, Platt, U., & Wagner, T. 2005c. Measurements of trace gas distributions using Long-path DOAS-Tomography during the motorway campaign BAB II: experimental setup and results for NO2. J. Atmos. Environ., 39(5), 967 – 975. Rippel, B. 2005. Vorarbeiten für Langpfad DOAS Tomographische Messungen über der Stadt Heidelberg. Diplomarbeit, Institut für Umweltphysik, Universität Heidelberg, Germany. Stelzer, A. 2005. Horizontale tomographische Langpfad-DOAS Spurengasmessungen in Heidelberg. Diplomarbeit, Institut für Umweltphysik, Universität Heidelberg, Germany. von Friedeburg, C., Pundt, I., Mettendorf, K. U., Wagner, T., & Platt, U. 2005. Multi-axis-DOAS measurements of NO2 during the BAB II motorway emission campaign. J. Atmos. Environ., 39(5), 977 – 985. Wang, P., Richter, A., Bruns, M., Burrows, J. P., Junkermann, W., Heue, K.-P., Wagner, T., Platt, U., & Pundt, I. 2005a. Airborne multi-axis DOAS measurements of tropospheric SO2 plumes in the Po-valley, Italy. Atmos. Chem. Phys. Discuss, 5, 2017 – 2045. Wang, P., Richter, A., Bruns, M., Rozanov, V., Burrows, J. P., Heue, K.-P., Wagner, T., Pundt, I., & Platt, U. 2005b. Measurements of tropospheric NO2 with an airborne multi-axis DOAS instrument. Atmos. Chem. Phys., 5, 337 – 343.
2.5. SATELLITE GROUP 69 2.5 Satellite Group Participating scientist Steffen Beirle, Tim Deutschmann, Barbara Dix, Ossama Ibrahim, Christian Frankenberg, Michael Grzegorski, Klaus-Peter Heue, Jens Hollwedel, Muhammad Fahim Khokhar, Sven Kühl, Thiery Marbach, Janis Pukite, Suniti Sanghavi, Thomas Wagner, and Walburga Wilms- Grabe Abstract The Satellitegroup is part of the researchgroup Atmospheric Physics of Prof. Dr. Ulrich Platt. The satellite born remote sensing of the Earth’s atmosphere at the University of Heidelberg started in 1996 with the retrieval of atmospheric trace gases, namely NO2 and BrO. Today a wide variety of trace gases and other atmospheric parameters (Aerosols, Clouds, Radiative Transfer) from different satellite instruments are investigated at the IUP (see also http://satellite.iup.uni-heidelberg.de). Figure 2.34: Satellite measurement of the reflected and scattered sun light (yellow). The spectral signatures of several atmospheric trace gases are analysed in selected spectral ranges using the DOAS method. Displayed are the fitting results for various species analysed in the satellite group. Overarching topic and Background For about 10 years now, a new generation of UV/vis/NIR satellite instruments (GOME, SCIAMACHY, OMI) with moderate spectral resolution allows the retrieval of a large variety of atmospheric trace gases. In particular, global maps of several tropospheric trace gases like O3, BrO, NO2, CO, CH4, CO2, HCHO, SO2, H2O, O2, O4, and cloud properties can be analysed from observations in nadir viewing mode. The most important advantage of such satellite observations is their spatial (horizontal) coverage and resolution. The latest generation of nadir looking UV/vis satellite instruments (e.g. OMI) achieves global coverage within one day and has a horizontal resolution of about 13 x 24 km 2 . From such satellite observations, various individual sources like large cities can be identified. In addition, the observation of scattered sun light in limb geometry allows to retrieve vertical profiles of several stratospheric trace gases like O3, NO2, BrO and OClO. Funding The group activities are funded through various national and international projects, e.g. SCIAMACHY validation, FORMAT, STAR, Tropische Tropopause, NOXTRAM, EVERGREEN, AC- CENT Main methods From the measured spectra, the narowband absorption features of several trace gases are analysed using the DOAS method (see Figure). The result of the spectral analysis represents the trace gas absorption integrated along the absorption path. In addition, also the broad band spectral features are analysed; they yield information in particular on the cloud cover, aerosol load and ground albedo. Various algorithms for the analysis of satellite spectra were developed in the satellite group within the last years. For the detailed interpretation of the analysed spectral information, radiative transfer modelling is needed. A 3-D Monte-Carlo radiative transfer model (TRACY) was developed in our group, which allows to simulate various complex viewing geometries and atmospheric properties. The retrieved global data sets are further investigated using image sequence techniques.
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Institut für Umweltphysik und Arbe
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Contents 1 Introduction/Overview of
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CONTENTS 7 3.2.1 Glaciological pilo
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Introduction In Heidelberg, environ
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Overview Summary Atmospheric resear
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3.1. SOIL PHYSICS 121 Major Achieve
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3.1. SOIL PHYSICS 123 3.1.2 X-ray a
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3.1. SOIL PHYSICS 125 3.1.4 Near In
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3.1. SOIL PHYSICS 131 3.1.10 Monito
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3.1. SOIL PHYSICS 133 3.1.12 3D Ful
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3.1. SOIL PHYSICS 135 References Ba
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3.2. ICE AND CLIMATE 139 regions) a
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3.2. ICE AND CLIMATE 143 3.2.4 Clim
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3.2. ICE AND CLIMATE 145 3.2.6 Nove
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3.2. ICE AND CLIMATE 147 Preunkert,
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4.2. LAKE RESEARCH (LIMNOPHYSICS) 1
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Small-Scale Air-Sea Interaction 5.1
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170 CHAPTER 5. SMALL-SCALE AIR-SEA
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Forschungsstelle “Radiometrie”
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7.2. GREY PUBLICATIONS 215 Grey Pub
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7.3. PHD THESES 217 PhD Theses Baye
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7.5. INVITED TALKS 221 Invited Talk
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7.5. INVITED TALKS 223 Pundt, I. 20
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Institut für Umweltphysik Im Neuen
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