msc/bsc thesis topics 2012 atmospheric chemistry group 7 potential topics
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MSc/BSc Thesis Topics 2012
Atmospheric Chemistry Group
7 potential topics
Topic 1: Sensitivity of model simulations to horizontal and vertical resolution
Key questions:How do the results of a global chemistry-climate model change with increasing horizontal and vertical resolution?What are the main reasons?
Key tasks:Computational work and data analysis.
Tutor:Andrea Stenke,Tel. 33625, [email protected]
Temperature difference for September between two model simulations in T42 (2.81° x 2.81°) and T31 (3.75° x 3.75°) horizontal resolution.
Temperature T42 – T31
Topic 2: Climate effects of regional nuclear conflicts – albedo feedbacks
Key questions:What kind of albedo and sea-ice feedback processes determine global climate after massive soot emissions of a regional nuclear conflict? Is there a tipping point?
Key tasks:Computational work and data analysis.
Tutor:Andrea Stenke,Tel. 33625, [email protected]
Global mean surface albedo change for different scenario runs.
Topics 3a-e: Global modeling of the ozone and climate changes
Monthly mean Total Ozone changes
2100-1980 (%)
simulations with CCM SOCOL v2.0
Topic 3a: Which quantities may serve as indicators for the strength of the Brewer-Dobson circulation?
H2O anomalies (“tape recorder”) from the HALOE satellite instrument
Key questions:How does the strength of the B-D circulation affect different atmospheric quantities? How does this affect observational data and model results?
Key tasks:Data analysis, statistical methods
Tutors:Eugene Rozanov (PMOD Davos), Tom PeterTel. 081 4175135, [email protected]
Topic 3b: Which reactions are responsible for temperature dependence of the stratospheric ozone content?
Key questions:Which chemical reactions are important for the temperature dependence of stratospheric ozone net destruction?
Key tasks:Numerical experiments with the models of different complexity
Tutor:Eugene Rozanov (PMOD Davos), Tom Peter,Tel. 081 4175135, [email protected]
Key questions:Evaluate the performance of 18 CCMs in the simulation of the past (1960-2007) tropospheric climate changes. How do they compare?
Key tasks:Type of work:Data analyze, statistical methods
Tutor:Tom Peter,Eugene Rozanov, Tel. 081 4175135, [email protected]
Topic 3c: How well represented is the tropospheric climate in CCMs that participated in the SPARC CCM Validation campaign?
Topic 3d: How well is the influence of the sulfate aerosol on heating rates simulated with ECHAM radiation codes?
Key questions:How does the performance of the ECHAM radiation codes in simulation of the heating rate changes due to sulfate aerosol compare, e.g. after volcanic eruptions?
Key tasks:Numerical experiments with the state-of-the-art radiation transfer codes
Tutor:Tom Peter,Eugene Rozanov, Tel. 081 4175135, [email protected]
Topic 4: Understanding aerosol ageing -ozonolysis of organic aerosol proxies
Key questions:How does the physical state of organic aerosols influence their reactivity? Measure the loss of ozone and evaluate uptake kinetics.
Key tasks:Laboratory work and data analysis
Tutors:Sarah Steimer, Markus Ammann (PSI)Tel. +41 56 310 [email protected]
Ozone uptake on tannic acid
MSc/BSc Thesis Topics 2012: summaryAtmospheric Chemistry Group
7 potential topics
Topic: Advisors:
Topic 1: Sensitivity of model simulations to resolution Andrea StenkeTopic 2: Climate effects of regional nuclear conflicts Andrea StenkeTopic 3a: Indicators of Brewer-Dobson circulation strength Eugene Rozanov, Tom PeterTopic 3b: T-dependence of stratospheric ozone content Eugene Rozanov, Tom PeterTopic 3c: Tropospheric climate in CCMs Eugene Rozanov, Tom PeterTopic 3d: CCM heating rates, e.g. after volcanic eruption Eugene Rozanov, Tom PeterTopic 4: Ozonolysis of organic aerosol proxies Sarah Steimer, Markus Ammann