Zobrazeno 1 - 10
of 370
pro vyhledávání: '"Richard E. Orville"'
Autor:
Carina Schumann, Marcelo M. F. Saba, R. J. Thomas, Richard E. Orville, John H. Helsdon, Marco A. S. Ferro, Tom A. Warner
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific Reports
Scientific Reports
Upward lightning studies took place in Rapid City, South Dakota, USA and S. Paulo, Brazil during the summer thunderstorm seasons from 2011 to 2016. One of the main objectives of these campaigns was to evaluate and characterize the triggering of upwar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af56feb5a86310e9480e0ae343f582f9
http://link.springer.com/article/10.1038/s41598-019-46122-x
http://link.springer.com/article/10.1038/s41598-019-46122-x
Autor:
R. D. Hill
Publikováno v:
Journal of Geophysical Research. 80:1188-1188
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcd86fe2fda96e99bca51b9812976002
https://doi.org/10.1029/jc080i009p01188
https://doi.org/10.1029/jc080i009p01188
Autor:
Pengfei Zhang, Alexander V. Ryzhkov, Scott Collis, Scott E. Giangrande, Richard Weitz, Daniel Rosenfeld, Toshihisa Matsui, Marcus van Lier-Walqui, Xiaowen Li, Richard E. Orville, Mark H. Picel, Ann M. Fridlind, Robert Jackson
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 2979-3000 (2019)
To probe the potential value of a radar-driven field campaign to constrain simulation of isolated convection subject to a strong aerosol perturbation, convective cells observed by the operational KHGX weather radar in the vicinity of Houston, Texas,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee2852243f4030e0e6cacd025471a64a
https://www.atmos-meas-tech-discuss.net/amt-2018-454/
https://www.atmos-meas-tech-discuss.net/amt-2018-454/
Publikováno v:
Journal of Geophysical Research: Atmospheres. 121:9251-9260
Based on the analysis of high-speed optical and electric field change data, we present three observed cases in which a naturally occurring bidirectional lightning leader initiated and developed in virgin air near a previous established positive leade
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::021f0a50b7d721b86bb6da763fdf3c3a
https://doi.org/10.1002/2016jd025365
https://doi.org/10.1002/2016jd025365
Autor:
Maribeth Stolzenburg, Thomas C. Marshall, Richard E. Orville, Sumedhe Karunarathne, Nadeeka Karunarathna
Publikováno v:
Journal of Geophysical Research: Atmospheres. 120:3408-3435
This study presents observations of abandoned stepped leader branches that briefly reconnect to the main stepped leader trunk or another active branch during the negative stepped leader advance in natural cloud-to-ground lightning strokes. The transi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e63baadd6bf1045b9d7a6efc68a192fd
https://doi.org/10.1002/2014jd022933
https://doi.org/10.1002/2014jd022933
Autor:
Richard E. Orville, Thomas C. Marshall, Sumedhe Karunarathne, Nadeeka Karunarathna, Maribeth Stolzenburg
Publikováno v:
Journal of Geophysical Research: Atmospheres. 120:2419-2436
A full negative stepped leader and portions of four negative stepped leaders preceding negative cloud-to-ground lightning return strokes were modeled; each model was constrained to match electric field change measurements recorded at three or four si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6402d858c34a043da4da761789797ad9
https://doi.org/10.1002/2014jd022679
https://doi.org/10.1002/2014jd022679
Publikováno v:
Electric Power Systems Research. 118:89-92
It has been discussed in past papers if a positive leader propagates in a stepped fashion or not. Some studies state that, in some positive cloud-to-ground flashes, the electric field pulses observed just before the connection of the positive leader
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f008c7bfee31a12625bf30e7a5793f4
https://doi.org/10.1016/j.epsr.2014.06.002
https://doi.org/10.1016/j.epsr.2014.06.002
Autor:
Richard E. Orville, Sumedhe Karunarathne, Nadeeka Karunarathna, Maribeth Stolzenburg, Thomas C. Marshall
Publikováno v:
Journal of Geophysical Research: Atmospheres. 119:4228-4252
This study describes the occurrence of branches in lightning dart leaders, based on data acquired in Florida using a high-speed video camera and electric field change sensors. More than half (57%) of 72 flashes with analyzable dart leaders show at le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df46a6749177686e6ae82c805992fa64
https://doi.org/10.1002/2013jd021254
https://doi.org/10.1002/2013jd021254
Autor:
Marcelo M. F. Saba, Osmar Pinto, Richard E. Orville, E. Philip Krider, Leandro Z. S. Campos, Tom A. Warner
Publikováno v:
Atmospheric Research. :285-305
The aim of this investigation is to analyze the phenomenology of positive and negative (stepped and dart) leaders observed in natural lightning from digital high-speed video recordings. For that intent we have used four different high-speed cameras o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::445fd002de2f5c1453548ab8aab299fe
https://doi.org/10.1016/j.atmosres.2012.12.011
https://doi.org/10.1016/j.atmosres.2012.12.011
Autor:
Thomas C. Marshall, Maribeth Stolzenburg, Tom A. Warner, Nadeeka Karunarathna, Richard E. Orville, Sumedhe Karunarathne
Publikováno v:
Journal of Geophysical Research: Atmospheres. 118:9845-9869
[1] Using time-correlated high-speed video and electric field change data, three cases are described in which dart leaders toward ground are immediately preceded by stepped leaders that find and use previously used channels. These “stepped-to-dart
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c79f49865f0a4e185671f69efd6ed54e
https://doi.org/10.1002/jgrd.50706
https://doi.org/10.1002/jgrd.50706