Lecture Programme

Condensed Course of the Universities of Cologne and Wuppertal in cooperation with the Institutes (IEK-7 and IEK-8) of the Forschungszentrums Jülich

Preliminary Lecture Programme:

Monday, 16.10.2023

08:30 am - 09:00 am

Introduction

Michaela Hegglin
Paul Konopka

09:15 am - 10:45 am

Structure of the Atmosphere

  • layering (troposphere, stratosphere, ...)
  • barometric formula, temperature gradient, potential temperature, isentropes
  • water in the atmosphere
  • ozone

Paul Konopka

10:45 am - 12:15 pm

Atmospheric chemistry I (part 1)

  • atmospheric composition
  • photochemically active radiation and its height dependence
  • photochemistry, radicals, gas phase kinetics
  • lifetime of molecules and molecule families

Jörg Kleffmann
Philip Carlsson

12:15 pm - 01:45 pm

Lunch break

 

01:45 pm - 03:00 pm

Atmospheric chemistry I (part 2)

  • see above

Jörg Kleffmann
Philip Carlsson

03:15 pm - 04:45 pm

Dynamics of the atmosphere

  • transport and mixing in the atmosphere
  • diffusion, advection, and turbulence
  • Navier-Stokes equations and Ekman spiral
  • atmospheric scales in time and space
  • global circulation

Yaping Shao
Christian Wegener

Tuesday, 17.10.2023

09:00 am - 10:30 am

Tropospheric gas phase chemistry

  • loss of organic trace gases by OH, O3 und NO3 (reaction mechanisms)
  • selected trace gas cycles
  • anthropogenic impacts on tropospheric chemistry

Jörg Kleffmann

10:45 am - 12:15 pm

Tropospheric aerosols

  • aerosol sources and dynamical processes
  • regional size distributions
  • chemical ageing and composition
  • spatial and vertical distributions

Alexandra Tsimpidi

12:15 pm - 01:45 pm

Lunch break

 

01:45 pm - 03:00 pm

The stratospheric circulation in a changing climate

  • global stratospheric circulation and its forcing mechanism
  • diagnosing the circulation
  • changes of the stratospheric circulation in a warming climate

Felix Plöger

03:15 pm - 04:45 pm

Radiative processes and climate change

  • radiative budget in the atmosphere
  • atmospheric dynamics versus radiative equlibrium
  • radiative forcing and climate sensitivity

Paul Konopka

05:00 pm - 06:00 pm

Tropospheric chemistry modelling: chemical processing of trace constituents in the troposphere

  • online emissions and chemical mechanisms
  • dry and wet deposition
  • tropospheric budgets

Domenico Taraborrelli

Wednesday, 18.10.2023

09:00 am - 10:30 am

The importance of clouds and new approaches for observations using groundbased remote sensing

  • Clouds in the global climate system
  • Cloud types
  • Methods for cloud observations

Ulrich Löhnert
Bernhard Pospichal

10:45 am - 12:15 pm

Ice clouds - observations and simulations

  • Cirrus observations: in-situ and satellite climatologies
  • Cirrus simulations: origins and freezing mechanisms

Christian Rolf

12:15 pm - 01:45 pm

Lunch break

 

01:45 pm - 03:00 pm

Experimental methods for the analysis of atmospheric trace gases

  • analysis of greenhouse gases
  • volatile organic compounds
  • reactive nitrogen oxides

Robert Wegener

03:15 pm - 06:15 pm

Lab tour through IEK7/8

  • In-service Aircraft for a Global Observing System (IAGOS)
  • GLORIA (remote sensing of trace gases and aerosols)
  • Atmospheric simulation chamber (SAPHIR)
  • Jülich Observatory for Cloud Evolution (JOYCE)
  • In situ trace gases (AirCore/MOSES)
 

Thursday, 19.10.2023

09:00 am - 10:30 am

Data assimilation (DA) and inversion of chemistry-transport models

  • methods of data assimilation
  • tropospheric and stratospheric chemistry DA
  • inversion

Anne Lange
Philipp Franke

10:45 am - 12:15 pm

Stratospheric Chemistry

  • Chapman cycle
  • catalytic ozone destruction cycles and chlorofluorocarbons
  • polar ozone and polar stratospheric clouds

Jens-Uwe Grooß
Rolf Müller

12:15 pm - 01:45 pm

Lunch break

 

01:45 pm - 03:00 pm

Optical properties of aerosol particles – basic principles and related measurement methods

  • aerosol parameters and aerosol-climate interaction
  • optical properties and their relation to particle chemical composition
  • measuring concepts (light extinction, scattering, and absorption)
  • optical closure studies

Patrick Weber
Andreas Petzold

03:15 pm - 04:15 pm

Sulfur - an element of life and climate

  • sulfur chemistry and its oxidation chain
  • the natural sulfur cycle and embedded climate modulators
  • anthropogenic influences on atmospheric sulfur

Marc von Hobe

04:30 pm - 06:00 pm

Atmospheric remote sensing

  • satellite measurments
  • atmospheric radiative transfer
  • temperature soundings

Sabine Grießbach
Lars Hoffmann

07:00 pm

Conference Dinner

(Restaurant Indemann)

free for all participants

(bus transfer is provided)

Friday, 20.10.2023

09:00 am - 10:30 am

Global change of the Earth's atmospheric composition and climate

  • radiation budget of the Earth
  • greenhouse effect, impact of trace gases
  • historical and future changes of climate

Andreas Wahner

10:45 am - 11:45 am

Geoengineering

  • Carbon Dioxide Removal (CDR)
  • Solar Radiation Management (SRM)
  • studies on achievability of these methods

Rolf Müller
Jens-Uwe Grooß

11:45 am - 12:15 pm

Discussion

 

12:15 pm - 01:45 pm

Lunch break

 

01:45 pm - 03:00 pm

Introduction to modelling of chamber experiments

  • Introduction to chemical box modelling
  • Available online tools for box modelling
  • Lumping of species
  • How to choose the appropriate model for different types of experiments

Anna Novelli

03:15 pm - 04:45 pm

Exercise: modelling a real chamber experiment

  • Familiarize with the modelling tools
  • Implementation of chamber effects
  • Modelling of a real experiment
  • Sensitivity studies on the impact of different rate coefficients

Anna Novelli

Last Modified: 04.10.2023