4 documents found

Dissertation

Changes of the tropical tropopause layer in reanalysis and climate model...

The main entrance region for trace gases which are emitted in the troposphere reaching the stratosphere, is the tropical tropopause ayer (TTL). Chemical and dynamical processes within the TTL control the amount of trace gases entering the stratosphere. In this study a Lagrangian analysis of the upper...
Dissertation

Photonenweglängen in konvektiver Bewölkung unter Berücksichtigung der räumlichen...

Die vorliegende Arbeit untersucht, inwieweit die Photonenweglängenverteilung der durch Wolken transmittierten solaren Strahlung Informationen über die Wolkeneigenschaften enthält und sich damit zur Wolkenfernerkundung eignet. Hierzu wurden Photonenweglängen (PPL) mit dem rückwärts rechnenden Monte-Carlo-Strahlungstransportmodell...
Dissertation

Meteorological constraints on marine atmospheric halocarbons and their...

This thesis investigates the influence of meteorological conditions and oceanic emissions on atmospheric halocarbons (VSLS) abundances above the oceans and their transport into the free troposphere during three ship campaigns in different oceanic and atmospheric regimes. Meteorological data were measured...
Dissertation

Transport of very short-lived substances from the Indian Ocean to the stratosphere...

Anthropogenic halogenated substances cause the ozone hole above Antarctica through catalytic ozone destruction and depletion of the stratospheric ozone layer, which shields the Earth from harmful ultraviolet radiation. Their emissions were regulated through the Montreal Protocol in 1989. Since the beginning...