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Optimising the use of updated and additional products from the nowcasting satellite application facility
Expanded Title:Nowcasting constitute the detailed description of the current weather along with forecasts obtained by extrapolation for a period of 0 - 6 hours ahead. The latest radar, satellite and observational data are powerful tools when operational forecasters have to warn the public of hazardous, high-impact weather such as thunderstorms, tornadoes, lightning strikes and destructive winds. Effective and accurate nowcasting contributes to the reduction of fatalities and injuries, reduction of damage to property as well as improved efficiency for various industries including transport and agriculture. Nowcasting also plays a key role in aviation weather forecasts - both at the terminal as well as in the en-route environment. Ideally, radar systems are the most important part of nowcasting, however, many developing countries and even more so, least developed countries do not have operational radar systems at all. Some countries, which are fortunate enough to have radar systems, are struggling to maintain these powerful data sources. Geostationary satellite data (from MSG in the case of African countries) provide real time coverage of the entire African continent that currently updates every 15 minutes and has a resolution of 3km for most of the 12 channels. Using MSG data, in combination with input from local numerical weather prediction (NWP) models, can be an excellent second option for nowcasting purposes in areas which are not covered by radar data or where no radar systems are available.
Date Published:01/10/2017
Document Type:Research Report
Document Keywords:Climate, Technology
Document Format:Report
Document File Type:pdf
Research Report Type:Standard
WRC Report No:2430/1/17
ISBN No:978-1-4312-0921-7
Authors:de Coning E; Gijben M; Van Hemert L; Cronje C; Maseko B
Project No:K5/2430
Organizations:South African Bureau of Standards
Document Size:3 024 KB
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