Bachelor Thesis: Integration of radiosonde and radiometer measurements in PAFOG

Bentje Flick and Andreas Bott

Fog and the connected reduction of visibility affects different areas of human activities. Primarily, road and air traffic are impacted in terms of accidents or delay and diversion of flights. Until now fog forecasting and modeling is not sufficiently exact. Therefore it is important to improve modeling and prediciton to obtain more accurate predictions of visibility, for example in order to reduce costs. In this bachelor thesis the ability to predict radiation fog with radiometer measurements will be analyzed to replace as necessary the radiosondes by microwave radiometers, for example at airports. Therefore, the one-dimensional radiation fog model PAFOG (with parameterized cloud microphysics) will be initialized with measurements of a microwave radiometer. The results will be compared with radiosonde measurements and synoptic observations. The research is located on the meteorological observatory in Lindenberg and the dataset includes three winter periods.