3 Aim and Scope of the Course The aim of the course is to: understand the processes and learn how to calculate the transfer of radiation in the atmosphere. Main applications of atmospheric radiative transfer are: Impact of radiation on climate Atmospheric remote sensing
4 Organisation of the Course The course will consist of: About 7 introductory lectures About 7 practical exercises at the computers For the Diploma students: Kriterium um einen Schein übererfolgreiche Teilnahme zu bekommen: Aktive Teilnahme an den praktischen Übungen (höchstens zweimal fehlen)
5 Outline of the Next Few Weeks 1.Introduction 2.Radiative Transfer, Part 1 3.Spectroscopy 4.Radiative Transfer, Part 2
6 Introduction What are numerical methods? Why use numerical methods? How does this look like in practise?
11 1.1 Planetary Equilibrium Temperature Heating by absorption of (shortwave) solar radiation Cooling by emission of (longwave) terrestrial radiation
12 1.1 Planetary Equilibrium Temperature Incoming solar radiation needs to be balanced by outgoing terrestrial radiation. Solar constant at top of Earths atmosphere: 1376 W m -2 Outgoing longwave radiation:
13 1.2 A Simple Model of the Greenhouse Effect Assumptions: Single layer atmosphere with constant temperature Atmosphere is transparent for shortwave solar radiation Atmosphere is a blackbody for longwave radiation
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