slide progress report
- 1. PROCESSING THE LIGHTNING DATA IN ANTARCTICA FROM WWLLN AND COMPARE THEM WITH GPS PWV PRESENTER : SITI FATIRAH BINTI RAMLI SUPERVISOR : ASSOCIATE PROF DR. WAYAN SUPARTA CO-SUPERVISOR : MISS SITI KHALIJAH BINTI ZAINUDIN
- 2. CONTENT OVERVIEW Introduction Research Objectives Methodology Result and discussion Conclusion Future work
- 3. INTRODUCTION
- 4. LITERATURE OF LIGHTNING IN ANTARCTICA From NASA SCIENCE NEWS ‘areas such as the Arctic and Antarctica have very few thunderstorms and, therefore,almost no lightning at all’ From GEOLOGY.COM ‘The poles have very little lightning because their white snow- and ice-covered surfaces are not effectively warmed by the sun to produce convection. There is also very little moisture in polar air. These factors significantly reduce the amount of lightning produced near the poles. ’
- 5. AVERAGE YEARLY COUNTS OF LIGHTNING FLASHES PER SQUARE KILOMETER BASED ON DATA COLLECTED BY NASA'S LIGHTNING IMAGING SENSOR ON THE TROPICAL RAINFALL MEASURING MISSION Gray or light purple - Places where less than one flash occurred (on average) each year are Deep red, grading to black - Places with the largest number of lightning strikes are
- 6. WWLLN WORLD LIGHTNING MAP Lightning stroke positions are shown as coloured dots blue for the most recent (occurring within the last 10 min) green and yellow to red for the oldest (30-40 minutes earlier) Red asterisks in white circles are active WWLLN lightning sensor locations. The terminator (day-night boundary) is shown, with the daylit section of the globe in grey.
- 7. RESEARCH STATIONS CASEY (Australia) MAWSON (Australia) MCMURDO (US) PALMER (US) From this 4 research stations,the GPS data could be obtained
- 8. LOCATION OF RESEARCH STATION IN ANTARTICA
- 9. DATA USED Type of data Website GPS data SOPAC and IGN Scripps Orbit and Permanent Array Center International GNSS Service Meteorology data INTERFACE to BAS/MET Oracle Data Lightning data WWLLN World Wide Lightning Location Network
- 10. GPS PWV PWV Represent the total amount of water vapor content in lower atmosphere that result from condensing all the water vapor in atmospheric column at particular time and over a given location from surface of earth to the top of atmosphere
- 11. LIGHTNING DATA FROM WWLLN WWLLN stands for World Wide Lightning Location Network WWLLN is maintain by the University of Washington with the cooperation of universities and institutes which host the stations around the globe There are 5 sensors located in the Antarctica: > SANAE > Rothera > Davis > Scott Base > Syowa
- 12. RESEARCH OBJECTIVES To perform data analysis of GPS PWV data using Matlab To compare the GPS PWV data with lightning data from WWLLN in Antartica
- 13. METHODOLOGY Collect GPS data from SOPAC/IGN Analyze lightning data with PWV data Data processing to get max angle Collect meteorology data from BUS INTERFACE Data processing to get PWV Plot a graph of PWV against days in January Collect lightning data from WWLLN
- 15. On 14th of January 2013 GPS PWV increase before lightning happen and decrease after lightning happen and the RMS energy value is the highest one But on 22nd of January 2013 As GPS PWV increase and it was the highest value among all,the lightning happen but it RMS energy value is low
- 16. COMPARISON WITH OTHER RESEARCH ‘Monitoring the association between GPS PWV and lightning activity during 2009 winter monsoon over Bangi Malaysia’ PWV increase before lightning happen Research area in Bangi the result from this research can only be used as reference but the result cannot be the same as research area different(temperature,climate,weather)
- 17. CONCLUSION Cannot conclude that as GPS PWV increase then lightning will happen because on some other days when GPS PWV increase,lightning do not happen
- 18. FUTURE WORK Literature on lightning Writing final report
- 19. THANK YOU