Variability of global lightning activity on the ENSO time scale

Sátori, Gabriella; Williams, Earle; Lemperger, István

doi:10.1016/j.atmosres.2008.06.014

Cited by 99 publications

(90 citation statements)

References 30 publications

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“…Each island and sub-region has a different precipitation and fire sensitivity to ENSO (Reid et al, 2012). While overall precipitation is reduced, a significant increase in lightning activity over SEA with ENSO has been detected (Hamid et al, 2001;Satori et al, 2009).…”

Section: Meteorological Scalesmentioning

confidence: 99%

Observing and understanding the Southeast Asian aerosol system by remote sensing: An initial review and analysis for the Seven Southeast Asian Studies (7SEAS) program

Reid¹,

Hyer²,

Johnson

et al. 2013

Atmospheric Research

299

264

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Section: Meteorological Scalesmentioning

confidence: 99%

Observing and understanding the Southeast Asian aerosol system by remote sensing: An initial review and analysis for the Seven Southeast Asian Studies (7SEAS) program

Reid¹,

Hyer²,

Johnson

et al. 2013

Atmospheric Research

299

264

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“…Thermodynamic explanations have been favored in explaining the dependence of lightning activity on island area , the semiannual variation of global lightning activity (Williams, 1994) and the interannual variation of lightning activity, both regionally (Hamid et al, 2001;Yoshida et al, 2007) and globally (Williams, 1992;Satori et al, 2009). Comprehensive studies of aerosol effects on lightning activity on the interannual time scale are lacking.…”

Section: The Entangled Roles Of Aerosols and Meteorology In Controllimentioning

confidence: 99%

The scientific basis for a satellite mission to retrieve CCN concentrations and their impacts on convective clouds

et al. 2012

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Abstract. The cloud-mediated aerosol radiative forcing is widely recognized as the main source of uncertainty in our knowledge of the anthropogenic forcing on climate. The current challenges for improving our understanding are (1) global measurements of cloud condensation nuclei (CCN) in the cloudy boundary layer from space, and (2) disentangling the effects of aerosols from the thermodynamic and meteorological effects on the clouds. Here, we present a new conceptual framework to help us overcome these two challenges, using relatively simple passive satellite measurements in the visible and infared (IR). The idea is to use the clouds themselves as natural CCN chambers by retrieving simultaneously the number of activated aerosols at cloud base, N a , and the cloud base updraft speed. The N a is obtained by analyzing the distribution of cloud drop effective radius in convective elements as a function of distance above cloud base. The cloud base updraft velocities are estimated by double stereoscopic viewing and tracking of the evolution of cloud surface features just above cloud base. In order to resolve the vertical dimension of the clouds, the field of view will be 100 m for the microphysical retrievals, and 50 m for the stereoscopic measurements. The viewing geometry will be eastward and 30 degrees off nadir, with the Sun in the back at 30 degrees off zenith westward, requiring a Sun-synchronous orbit at 14 LST. Measuring simultaneously the thermodynamic environment, the vertical motions of the clouds, their microstructure and the CCN concentration will allow separating the dynamics from the CCN effects. This concept is being applied in the proposed satellite mission named Clouds, Hazards and Aerosols Survey for Earth Researchers (CHASER).

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“…The UTWV data are obtained from the same NCEP data base as the temperature data shown in Figure 8. In addition to climate change, the SR has also been shown to be linked to the natural climate oscillation El Nino/Southern Oscillation (ENSO) that changes the Earth's climate every few year [108,109]. During ENSO years the convection, and hence the lightning activity, shifts position relative to the fixed SR observing stations.…”

Section: Using Sr As a Climate Research Toolmentioning

confidence: 99%

“…In the last 25 years, there has been an extensive hunt for TLEs using photography from ground stations, aircrafts, satellites and space shuttles, leading to TLE documentation in different geographical locations all over the world [112][113][114][115][116][117][118][119][120][121][122][123][124]. In addition to climate change, the SR has also been shown to be linked to the natural climate oscillation El Nino/Southern Oscillation (ENSO) that changes the Earth's climate every few year [108,109]. During ENSO years the convection, and hence the lightning activity, shifts position relative to the fixed SR observing stations.…”

Section: Sr In Transient Luminous Events Researchmentioning

confidence: 99%

ELF Electromagnetic Waves from Lightning: The Schumann Resonances

Price

2016

Atmosphere

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Lightning produces electromagnetic fields and waves in all frequency ranges. In the extremely low frequency (ELF) range below 100 Hz, the global Schumann Resonances (SR) are excited at frequencies of 8 Hz, 14 Hz, 20 Hz, etc. This review is aimed at the reader generally unfamiliar with the Schumann Resonances. First some historical context to SR research is given, followed by some theoretical background and examples of the extensive use of Schumann resonances in a variety of lightning-related studies in recent years, ranging from estimates of the spatial and temporal variations in global lighting activity, connections to global climate change, transient luminous events and extraterrestrial lightning. Both theoretical and experimental results of the global resonance phenomenon are presented. It is our hope that this review will increase the interest in SR among researchers previously unfamiliar with this phenomenon.

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Variability of global lightning activity on the ENSO time scale

Cited by 99 publications

References 30 publications

Observing and understanding the Southeast Asian aerosol system by remote sensing: An initial review and analysis for the Seven Southeast Asian Studies (7SEAS) program

Observing and understanding the Southeast Asian aerosol system by remote sensing: An initial review and analysis for the Seven Southeast Asian Studies (7SEAS) program

The scientific basis for a satellite mission to retrieve CCN concentrations and their impacts on convective clouds

ELF Electromagnetic Waves from Lightning: The Schumann Resonances

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