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14 CHAPTER 2. ATMOSPHERE AND REMOTE SENSING<br />

3. Spectroscopic studies of atmospheric particles will be performed within a large long-term intercomparison<br />

exercise (EU-project ICARTT).<br />

4. Study of the inter-annual variation of the solar radiation field including 2-D imaging spectroscopy<br />

of the radiative properties of the atmosphere with a particular focus on the radiative properties<br />

during the life cycle of individual clouds (DFG Forschergruppe ’life cycles of clouds’)<br />

5. Using novel ballon-based instrumentation (Mini-DOAS), the time-dependence of ozone destroying<br />

radicals (BrO, and OClO) and inferred reactive chlorine will be investigated from which<br />

conclusions on the most important loss reactions for stratospheric ozone in polar winter can be<br />

drawn.<br />

6. Investigation of the transport and photochemical processes at the major entrance of tropospheric<br />

air into the stratosphere, i.e. the tropical upper troposphere layer/lowermost stratosphere<br />

(TTL/LMS) Conclusions will be drawn on the ozone depletion potential of major manmade<br />

and naturally emitted ozone destroying chemicals passing the TTL/LMS (EU-project<br />

SCOUT-O3).<br />

7. Study of the European carbon balance and in particular the fossil fuel CO2 contribution (EUproject<br />

CarboEurope-IP)<br />

8. Within the carbon system, investigation of independent constraints on global carbon exchange<br />

as derived from long-term high precision 14 CO2 observations in combination with model studies<br />

(DFG project, Atmospheric 14 C).<br />

9. Investigation of the continental European hydrogen budget (in particular the anthropogenic<br />

source and the soil sink) using continuous and aircraft observations over Europe and Siberia<br />

(EUROHYDROS and TCOS II, submitted EU proposals)<br />

Instrument development will be continued, a particular topic being preparation for the new German<br />

research aircraft HALO. In this context we are developing novel instruments based on imaging and<br />

near-IR spectroscopy.<br />

Literature<br />

A total of 16 peer reviewed manuscripts where accepted by or appeared in scientific journals. Members<br />

of the institute were invited to give 19 presentations on topics related to atmospheric research at<br />

scientific conferences<br />

Diploma and Doctoral Theses<br />

A total of 4 Diploma theses and 2 Doctoral theses on topics related to atmospheric research were<br />

completed in the reporting period.

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