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William J. Koshak
Researcher at Marshall Space Flight Center
Publications - 116
Citations - 4457
William J. Koshak is an academic researcher from Marshall Space Flight Center. The author has contributed to research in topics: Lightning & Lightning detection. The author has an hindex of 24, co-authored 112 publications receiving 3846 citations. Previous affiliations of William J. Koshak include Universities Space Research Association & University of Arizona.
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Journal ArticleDOI
Global frequency and distribution of lightning as observed from space by the Optical Transient Detector
Hugh J. Christian,Richard J. Blakeslee,Dennis J. Boccippio,William L. Boeck,Dennis E. Buechler,Kevin T. Driscoll,Steven J. Goodman,John Hall,William J. Koshak,Douglas M. Mach,M. F. Stewart +10 more
TL;DR: In this article, the authors used the OTD measurements to construct lightning climatology maps that demonstrate the geographical and seasonal distribution of lightning activity for the globe, and found that lightning occurs mainly over land areas, with an average land/ocean ratio of 10:1.
Journal ArticleDOI
The GOES-R GeoStationary Lightning Mapper (GLM)
Steven J. Goodman,Richard J. Blakeslee,William J. Koshak,Douglas M. Mach,Jeffrey C. Bailey,Dennis E. Buechler,Lawrence D. Carey,Christopher J. Schultz,Monte G. Bateman,Eugene W. McCaul,Geoffrey T. Stano +10 more
TL;DR: The Geostationary Operational Environmental Satellite R-series (GOES-R) is the next block of four satellites to follow the existing GOES constellation currently operating over the Western Hemisphere as mentioned in this paper.
The GOES-R Geostationary Lightning Mapper (GLM)
Steven J. Goodman,Richard J. Blakeslee,William J. Koshak,Douglas M. Mach,Jeffrey C. Bailey,Dennis E. Buechler,Lawrence D. Carey,Christopher J. Schultz,Monte G. Bateman,Eugene W. McCaul,Geoffrey T. Stano +10 more
TL;DR: The Geostationary Operational Environmental Satellite R-series (GOES-R) is the next block of four satellites to follow the existing GOES constellation currently operating over the Western Hemisphere, and will support expanded detection of environmental phenomena, resulting in more timely and accurate forecasts and warnings.
Journal ArticleDOI
Optimized regional and interannual variability of lightning in a global chemical transport model constrained by LIS/OTD satellite data
TL;DR: In this paper, an optimal regional scaling algorithm for CTMs to fit the lightning NOxsource to the satellite lightning data in a way that preserves the coupling to deep convective transport was presented.
Journal ArticleDOI
Performance Assessment of the Optical Transient Detector and Lightning Imaging Sensor. Part I: Predicted Diurnal Variability
TL;DR: In this article, the effective LIS thresholds, expressed as radiances emitted normal to cloud top, are 4.0 ± 0.7 and 7.6 ± 3.3 μJ sr−1 m−2 for night and local noon.