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A geostationary lightning pseudo-observation generator utilizing low frequency ground-based lightning observations

Felix Erdmann, Olivier Caumont, Eric Defer
2021 Journal of Atmospheric and Oceanic Technology  
In the perspective of lightning data assimilation, Flash Extent Density (FED) is derived from both observed and simulated GLM data.  ...  However, the simulated FED often exceeds the observed FED in regions of convective cores and high flash rates.  ...  This work is part of the Ph.D. thesis of Felix Erdmann funded by the Centre National d' Études  ... 
doi:10.1175/jtech-d-20-0160.1 fatcat:xv3vpxeqqfclrokxgr7vfijp3i

Concurrent satellite and ground-based lightning observations from the Optical Lightning Imaging Sensor (ISS-LIS), the low-frequency network Meteorage and the SAETTA Lightning Mapping Array (LMA) in the northwestern Mediterranean region

Felix Erdmann, Eric Defer, Olivier Caumont, Richard J. Blakeslee, Stéphane Pédeboy, Sylvain Coquillat
2020 Atmospheric Measurement Techniques  
In preparation for the use of the upcoming MTG-LI data, we compare observations by the Lightning Imaging Sensor (LIS) on the International Space Station (ISS), which applies an optical technique similar  ...  A second ground-based network, the very high-frequency (VHF) SAETTA Lightning Mapping Array (LMA), further enhances and validates the lightning pairing between ISS-LIS and Meteorage.  ...  This paper was edited by Domenico Cimini and reviewed by Kenneth Cummins and two anonymous referees.  ... 
doi:10.5194/amt-13-853-2020 fatcat:rghrwg4skjholks6wvtvnmlkdy

Three-dimensional fractal modeling of intracloud lightning discharge in a New Mexico thunderstorm and comparison with lightning mapping observations

Jeremy A. Riousset, Victor P. Pasko, Paul R. Krehbiel, Ronald J. Thomas, William Rison
2007 Journal of Geophysical Research  
Rison (2007) , Three-dimensional fractal modeling of intracloud lightning discharge in a New Mexico thunderstorm and comparison with lightning mapping observations,  ...  The authors thank William Winn and the anonymous reviewers for critical reading of this paper and for many useful comments and suggestions.  ...  rates of both cloud-to-ground and intracloud flashes, as determined by the three-dimensional Lightning Mapping Array (LMA).  ... 
doi:10.1029/2006jd007621 fatcat:6o4xjftipzd65nau24oy5nwaga

A CHEMICAL KINETICS NETWORK FOR LIGHTNING AND LIFE IN PLANETARY ATMOSPHERES

P. B. Rimmer, Ch Helling
2016 Astrophysical Journal Supplement Series  
Very little glycine is produced in the absence of any molecular nitrogen and oxygen. This suggests that production of glycine is inhibited if a gas is too strongly reducing.  ...  Possible applications and limitations of the chemical kinetics network are also discussed.  ...  Lightning Shock Model and NO x Chemistry It is also useful to the model's NO x lightning-driven chemistry in the present-day atmosphere.  ... 
doi:10.3847/0067-0049/224/1/9 fatcat:n6j2jxs3rfap3pmgtws4fvc774

Quantification of the effect of modeled lightning NO2 on UV–visible air mass factors

Joshua L. Laughner, Ronald C. Cohen
2017 Atmospheric Measurement Techniques  
Here, we quantify the effect of adding simulated lightning NO<sub>2</sub> to the a priori profiles for NO<sub>2</sub> observations from the Ozone Monitoring Instrument (OMI) using modeled NO<sub>2</sub  ...  We also find that constraining WRF meteorology to a reanalysis dataset reduces lightning flash counts by a factor of 2 compared to an unconstrained run, most likely due to changes in the simulated water  ...  WRF has the option, however, to constrain meteorology throughout the domain using four-dimensional data analysis nudging.  ... 
doi:10.5194/amt-10-4403-2017 fatcat:r2ptunyi6fb6zk4u7ceuodspuu

The Definition of GOES Infrared Lightning Initiation Interest Fields

Ryan J. Harris, John R. Mecikalski, Wayne M. MacKenzie, Philip A. Durkee, Kurt E. Nielsen
2010 Journal of Applied Meteorology and Climatology  
Four-dimensional and cloud-to-ground lightning array data provide a total cloud lightning picture (in-cloud, cloud-to-cloud, cloud-to-air, and cloud-to-ground) and thus precise LI points for each storm  ...  The goal of this study is to identify the observed satellite infrared (IR) signatures associated with growing cumulus clouds prior to the first lightning strike, or lightning initiation (LI).  ...  The quality of this paper was substantially improved on the basis of comments from three anonymous reviewers.  ... 
doi:10.1175/2010jamc2575.1 fatcat:goqc67c4zjd5jdzuxx36yctdza

Impact of Storm-Scale Lightning Data Assimilation on WRF-ARW Precipitation Forecasts during the 2013 Warm Season over the Contiguous United States

Alexandre O. Fierro, Adam J. Clark, Edward R. Mansell, Donald R. MacGorman, Scott R. Dembek, Conrad L. Ziegler
2015 Monthly Weather Review  
The lightning data were assimilated during the first 2 h of simulations each day.  ...  Thus, this computationally inexpensive lightning assimilation scheme shows considerable promise for routinely improving short-term (#6 h) forecasts of high-impact weather by convection-allowing forecast  ...  The authors thank Bill Callahan, Benny Chukrun, Stan Heckman, and Jim Anderson from Earth Networks for providing the total lightning data.  ... 
doi:10.1175/mwr-d-14-00183.1 fatcat:j7gb2i5mgngzbfcrj3oklic4li

A Systematic Review on Privacy Preserving Data Publishing Techniques

Prathamesh P. Churi, Computer Science and Information Technology, Symbiosis Institute of Technology, Symbiosis International (Deemed University), Pune, India, Ambika V. Pawar, Computer Science and Information Technology, Symbiosis Institute of Technology, Symbiosis International (Deemed University), Pune, India
2019 Journal of Engineering Science and Technology Review  
of high dimensional data. • The research done in [58] , had limitation of non-applicability of Safe-Pub algorithm to high dimensional data. • SVM and random forest classification is applied upon dataset  ...  Few of the research papers where privacy achieved is very high, has lots of information loss. Maintaining variable privacy utility threshold depending upon the priority of health-care data.  ... 
doi:10.25103/jestr.126.03 fatcat:w7uwznrdjfepjbwnueaudytpq4

Data Publishing Techniques and Privacy Preserving

Ajit Singh
2019 International Journal for Information Security Research  
The term privacy is defined as an action where the data is kept hidden from either anonymous user, server to avoid use of malpractice of the data [2], [3] .  ...  The volume of the data generated in healthcare industry is rapidly growing. In this patient centric world, to get effective results, we need to increase healthcare data utility.  ...  results and clarifications. [61], Efficiency parameters : • In this paper, authors have developed mechanism for maintain Retail Dataset , • Computation Time privacy and utility of high dimensional data  ... 
doi:10.20533/ijisr.2042.4639.2019.0101 fatcat:gdrm2a6lkrgkxezclakdoiazfe

Personal data's ever-expanding scope in smart environments and possible path(s) for regulating emerging digital technologies

Raphaël Gellert
2021 International Data Protecion Law  
However, at times she seems to rely upon too linear accounts of technology. This is the case as far as the current and future capabilities of data-driven technologies are concerned (first point).  ...  Purtova convincingly sketches a 'maximalist' definition of the notion of personal data.  ...  High-Dimensional Data: Local anonymization.  ... 
doi:10.1093/idpl/ipaa023 fatcat:3kpcderc5becdeu6xfsc44qyp4

Deep Neural Network based Wide-Area Event Classification in Power Systems [article]

Iman Niazazari, Amir Ghasemkhani, Yunchuan Liu, Shuchismita Biswas, Hanif Livani, Lei Yang, Virgilio Centeno
2020 arXiv   pre-print
The deep neural network (DNN) based classifier is developed based on the availability of data from time-synchronized phasor measurement units (PMUs).  ...  The effectiveness of the proposed event classification is validated through the real-world dataset of the U.S. transmission grids.  ...  A data preprocessing scheme is proposed in this paper to address the issue of missing data. To perform the data-driven event classification, the use of deep neural network is presented in this paper.  ... 
arXiv:2008.10151v1 fatcat:24rmq5cxwrehjk4woyemrx3vxe

The Chuva Project: How Does Convection Vary across Brazil?

Luiz A. T. Machado, Maria A. F. Silva Dias, Carlos Morales, Gilberto Fisch, Daniel Vila, Rachel Albrecht, Steven J. Goodman, Alan J. P. Calheiros, Thiago Biscaro, Christian Kummerow, Julia Cohen, David Fitzjarrald (+18 others)
2014 Bulletin of The American Meteorological Society - (BAMS)  
The authors acknowledge the anonymous reviewers and the comments provided by Earle Williams.  ...  The authors also thank all of the participants in the CHUVA field campaigns who contributed directly or indirectly during the years of field work.  ...  The SOS-CHUVA provides high-resolution radar, satellite, and lightning data nearly in real time.  ... 
doi:10.1175/bams-d-13-00084.1 fatcat:oq4cpa3t2nfgrjot4lxxtgrr6u

Spatial variability in tropospheric peroxyacetyl nitrate in the tropics from infrared satellite observations in 2005 and 2006

Vivienne H. Payne, Emily V. Fischer, John R. Worden, Zhe Jiang, Liye Zhu, Thomas P. Kurosu, Susan S. Kulawik
2017 Atmospheric Chemistry and Physics  
and lightning.  ...  </strong> Peroxyacetyl nitrate (PAN) plays a fundamental role in the global ozone budget and is the primary reservoir of tropospheric reactive nitrogen over much of the globe.  ...  Müller Reviewed by: two anonymous referees  ... 
doi:10.5194/acp-17-6341-2017 fatcat:cqwr6hqizfgm3mpptzhn6jcqo4

Use of polarimetric radar measurements to constrain simulated convective cell evolution: a pilot study with Lagrangian tracking

Ann M. Fridlind, Marcus van Lier-Walqui, Scott Collis, Scott E. Giangrande, Robert C. Jackson, Xiaowen Li, Toshihisa Matsui, Richard Orville, Mark H. Picel, Daniel Rosenfeld, Alexander Ryzhkov, Richard Weitz (+1 others)
2019 Atmospheric Measurement Techniques  
The value of collocated three-dimensional lightning mapping array measurements, which are relatively rare in the continental US, supports the choice of Houston as a suitable location for future field studies  ...  </strong> 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  ...  Lightning flashes were estimated from raw very-high frequency (VHF) signals detected by the LMA.  ... 
doi:10.5194/amt-12-2979-2019 fatcat:mv4kr5kt7feethdh66yx2i5voe

A High Performance Remote Sensing Product Generation System Based on a Service Oriented Architecture for the Next Generation of Geostationary Operational Environmental Satellites

Satya Kalluri, James Gundy, Brian Haman, Anthony Paullin, Paul Van Rompay, David Vititoe, Allan Weiner
2015 Remote Sensing  
The Geostationary Operational Environmental Satellite (GOES) series R, S, T, U (GOES-R) will collect remote sensing data at several orders of magnitude compared to legacy missions, 24 × 7, over its 20-  ...  A ground system (GS) has been developed to meet these challenging requirements, using High Performance Computing (HPC) within a Service Oriented Architecture (SOA).  ...  The authors would like to thank Steven Goodman, Tim Schmit, Basil Chiasson, and the three anonymous reviewers for their valuable comments and feedback on the original manuscript.  ... 
doi:10.3390/rs70810385 fatcat:5h6kuhrmafcgjledf2jukszrn4
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