Loading...
Please wait, while we are loading the content...
Similar Documents
Integration of the total lightning jump algorithm into current operational warning environment conceptual models (Document No: 20130001747)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Carey, Lawerence D. Schultz, Elise V. Goodman, Steven Schultz, Christopher J. Stano, Geoffery T. Kozlowski, Danielle M. |
| Copyright Year | 2012 |
| Description | Key points that this analysis will begin to address are: 1)What physically is going on in the cloud when there is a jump in lightning? - Updraft variations, ice fluxes. 2)How do these processes fit in with severe storm conceptual models? 3)What would this information provide an end user (i.e., the forecaster)? - Relate LJA to radar observations, like changes in reflectivity, MESH, VIL, etc. based multi-Doppler derived physical relationships 4) How do we best transistionthis algorithm into the warning decision process. The known relationship between lightning updraft strength/volume and precipitation ice mass production can be extended to the concept of the lightning jump. Examination of the first lightning jump times from 329 storms in Schultz et al. shows an increase in the mean reflectivity profile and mixed phase echo volume during the 10 minutes prior to the lightning jump. Limited dual-Doppler results show that the largest lightning jumps are well correlated in time with increases in updraft strength/volume and precipitation ice mass production; however, the smaller magnitude lightning jumps appear to have more subtle relationships to updraft and ice mass characteristics. |
| File Size | 1596202 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20130001747 |
| Archival Resource Key | ark:/13960/t3sv2kj5r |
| Language | English |
| Publisher Date | 2012-11-05 |
| Access Restriction | Open |
| Subject Keyword | Meteorology And Climatology Vertical Air Currents Meteorological Radar Algorithms Storms Meteorology Lightning Weather Forecasting Environment Models Climate Models Atmospheric Electricity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
