Article detail · 2007
A Satellite-Based Fog Detection Scheme Using Screen Air Temperature
Journal
Weather and Forecasting- Year
- 2007
- Type
- article
Data source split
- YÖKSİS venue Weather and Forecasting
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · English
Abstract A warm fog detection (air temperature > −5°C) algorithm using a combination of Geostationary Operational Environmental Satellite-12 (GOES-12) observations and screen temperature data based on an operational numerical model has been developed. This algorithm was tested on a large number of daytime cases during the spring and summer of 2004. Results from the scheme were compared with surface observations from four manned Canadian weather stations in Ontario, including Ottawa, Windsor, Sudbury, and Toronto. Initially, when all cases were included, fog detection (hit rate) by the satellite scheme ranged between 0.26 and 0.32. It is suggested that mid- or high-level clouds within the satellite imagery during the observed foggy periods affected the scheme’s performance in detecting surface-level fog for the majority of the cases. When cases with mid- and high-level clouds were removed using model-based screen temperatures, the hit rate ranged between 0.55 and 1.0. With an average false alarm rate of 0.10, the inclusion of model-based sounding values can be seen to improve results from the satellite-based algorithms by an average of 0.42. Average differences between the screen temperature and the surface-observed air temperature were found to be up to 2°C and this can likely account for some discrepancies in detecting fog. Finally, averaging GOES and model data to scales representing single data-point observations likely resulted in some of the failure of the fog algorithm.
Topics
Citations
OpenAlex cited_by_count. Not a WoS or Scopus citation count; those sources have no separate column here.
93 citations
OpenAlex cited_by_count (cache / database)
26 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
- Aviation Meteorology: Observations and models 2019
- A Review of High Impact Weather for Aviation Meteorology 2019
- A New Visibility Parameterization for Warm-Fog Applications in Numerical Weather Prediction Models 2006
- A review on ice fog measurements and modeling 2015
- A review on ice fog measurements and modeling 2015
- Freezing Fog and Drizzle Observations 2015
- Forecast of Low Visibility and Fog from NCEP: Current Status and Efforts 2011
- Microphysical Observations and Mesoscale Model Simulation of a Warm Fog Case during FRAM Project 2007
- Marine Fog: A Review on Microphysics and Visibility Prediction 2017
- A case study: Evaluation of PAFOG one-D modelwith advection in simulations of fog/stratus from C-FOG experiment. 2021