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RADS: Real-time Anomaly Detection System for Cloud Data Centres [article]

Sakil Barbhuiya, Zafeirios Papazachos, Peter Kilpatrick, Dimitrios S. Nikolopoulos
2018 arXiv   pre-print
Then, we propose a Real-time Anomaly Detection System (RADS) for Cloud data centres, which uses a one class classification algorithm and a window-based time series analysis to address the challenges.  ...  Existing research proposes a number of anomaly detection systems for detecting such attacks.  ...  In this paper, we propose a Real-time Anomaly Detection System (RADS) for Cloud data centres, which can detect VM-level anomalies occurring due to unknown DDoS and cryptomining attacks.  ... 
arXiv:1811.04481v1 fatcat:6ivwiypwfrbn3ceopts3ew2yle

Impact of Adaptively Thinned AIRS Cloud-Cleared Radiances on Tropical Cyclone Representation in a Global Data Assimilation and Forecast System

Oreste Reale, Erica L. McGrath-Spangler, Will McCarty, Daniel Holdaway, Ronald Gelaro
2018 Weather and forecasting  
The OSEs are performed with the NASA Goddard Earth Observing System (GEOS, version 5) data assimilation and forecast model.  ...  The OSEs consist of two sets of data assimilation runs that cover the period from September 1st to 10 November 2014, with the first 20 days discarded for spin-up.  ...  surface rather than detecting a cloud layer.  ... 
doi:10.1175/waf-d-17-0175.1 pmid:32934436 pmcid:PMC7489469 fatcat:o2zidqf43ngyrg3hxy6uykapym

Eulerian and Lagrangian views of warm and moist air intrusions into summer Arctic

Cheng You, Michael Tjernström, Abhay Devasthale
2021 Atmospheric research  
Statistically, turbulence-dominated cases occur with 3 times stronger large-scale subsidence, and also feature a larger anomaly in net shortwave radiation.  ...  category; T&R, TBL and RAD; TCLW, Total column cloud liquid water; T s , Surface temperature; WaMAIs, Warm and moist air intrusions.  ...  The ERA5 data was downloaded from www.ecmwf. int/en/forecasts/datasets/reanalysis-datasets/era5, the AIRS data from /download-nrt-data/airs-nrt  ... 
doi:10.1016/j.atmosres.2021.105586 fatcat:vtedackanbbrvcp7l7h2bbe56e

Thermal Remote Sensing for Global Volcano Monitoring: Experiences From the MIROVA System

Diego Coppola, Marco Laiolo, Corrado Cigolini, Francesco Massimetti, Dario Delle Donne, Maurizio Ripepe, Hidran Arias, Sara Barsotti, Claudia Bucarey Parra, Riky Gustavo Centeno, Sandrine Cevuard, Gustavo Chigna (+18 others)
2020 Frontiers in Earth Science  
Thermal Remote Sensing for Volcano Monitoring volcanological community.  ...  an essential requirement for the assessment of volcanic hazards.  ...  The system is able to detect, locate and quantify thermal anomalies in near real-time, by providing, on a dedicated website (, infrared images and thermal flux time-series on over 200  ... 
doi:10.3389/feart.2019.00362 fatcat:dmxfwcsawzbizchyml6ukq7ypu

Orbital Evolution of Cloud Particles from Explosions of Geosynchronous Objects

Toshiya Hanada, Tetsuo Yasaka
2005 Journal of Spacecraft and Rockets  
Nomenclature semimajor axis, km eccentricity disturbing acceleration, km/day true anomaly, rad inclination, rad mean anomaly, rad mean motion, rad/day radius, km time, day f, rad right ascension of ascending  ...  Therefore, the initial cloud makes a straight line in the adopted coordinate system.  ... 
doi:10.2514/1.11998 fatcat:t63vcokjqrglndnzcyvglgizem

WASAM: A dynamic wide-area situational awareness model for critical domains in Smart Grids

Cristina Alcaraz, Javier Lopez
2014 Future generations computer systems  
These services include global and local support for prevention through a simple forecast scheme, detection of anomalies in the observation tasks, response to incidents, tests of accuracy and maintenance  ...  This is the case of the Smart Grid and its domains which should be monitored through intelligent and dynamic mechanisms able to anticipate, detect and respond before disruptions arise within the system  ...  For example, Mohsenian-Rad et. al consider this infrastructure as a suitable massive data center for critical systems where backup instances can strategically be disseminated within the cloud [8] .  ... 
doi:10.1016/j.future.2013.06.030 fatcat:qqvbdkkpzjhehi3ysywya6azdu

Mt. Etna Paroxysms of February–April 2021 Monitored and Quantified through a Multi-Platform Satellite Observing System

Francesco Marchese, Carolina Filizzola, Teodosio Lacava, Alfredo Falconieri, Mariapia Faruolo, Nicola Genzano, Giuseppe Mazzeo, Carla Pietrapertosa, Nicola Pergola, Valerio Tramutoli, Marco Neri
2021 Remote Sensing  
Despite the impact of clouds/plumes, pixel saturation, and other factors (e.g., satellite viewing geometry) on thermal anomaly identification, the used multi-sensor approach allowed us to retrieve quantitative  ...  Etna paroxysms mentioned above through a multi-platform satellite system.  ...  formulation: Q rad = n ∑ i=1 ε σ A i p c i T c i 4 + p h i T h i 4 (1) where Q rad is the radiative power [W], n is the number of detected hot pixels, A i is the lava flow area for the pixel i having a  ... 
doi:10.3390/rs13163074 fatcat:bg6ferfyybdttevyeh6s2tx3pi

Design and Development of Framework to Create Cloud-Free Reference Repository of IRS Satellite Images for Image Analysis

D SHaripriya, Sai Durga, Mani Kumar, Manju Sarma
2014 International Journal of Computer Applications  
RAD corrected full scene Reference is used for alerting the images chain using cloud free scenes. This reference is used by raw data quality detection algorithms.  ...  This is the reference repository used as visual and statistical aiding tool for anomaly detections. The reference repository is created for satellite Browse Images and for satellite Data Products.  ... 
doi:10.5120/18117-9369 fatcat:3mnhqbbc4farzhf77uxdbjr6ei

Radiative heat power at Stromboli volcano during 2000–2011: Twelve years of MODIS observations

D. Coppola, D. Piscopo, M. Laiolo, C. Cigolini, D. Delle Donne, M. Ripepe
2012 Journal of Volcanology and Geothermal Research  
The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.  ...  We acknowledge the NASA-LAADS ( for providing night-time level 1b MODIS data.  ...  We thank Robert Wright and Matthew Patrick for their comments and suggestions, which have greatly helped to improve the manuscript.  ... 
doi:10.1016/j.jvolgeores.2011.12.001 fatcat:spae7mrd35fvlpp5t4dkibza7y

SMART-ITEM: IoT-enabled smart living

Ah-Lian Kor, Max Yanovsky, Colin Pattinson, Vyacheslav Kharchenko
2016 2016 Future Technologies Conference (FTC)  
-heart rate, respiration, temperature, oxygenation, etc...) will be securely transmitted (via wireless technologies), analysed in real-time (by an intelligent data system), and fed back via the e-health  ...  easy access to multiple services in one 'location'; Objective 3: Provide real-time user health information and analysis User's self-monitoring health data (e.g. through multi-sensor physiological monitoring  ...  data in real time.  ... 
doi:10.1109/ftc.2016.7821687 fatcat:5datqwa7vfccbnapl7nez3tmom

Smoke-charged vortices in the stratosphere generated by wildfires and their behaviour in both hemispheres: comparing Australia 2020 to Canada 2017

Hugo Lestrelin, Bernard Legras, Aurélien Podglajen, Mikail Salihoglu
2021 Atmospheric Chemistry and Physics  
We analyse the dynamical structure of the vortices produced by these two wildfires and demonstrate how the assimilation of the real temperature and ozone data from instruments measuring the signature of  ...  Based on Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) observations and the ERA5 reanalysis, this new study analyses the Canadian case and finds, similarly, that a large plume had penetrated  ...  Data availability. CALIOP data were provided by the ICARE/AERIS data centre. ERA5 data were provided by the Copernicus Climate Change Service. Supplement.  ... 
doi:10.5194/acp-21-7113-2021 fatcat:nfeqmpev3rff5lzqqso2ab6o4m

Global relationships among traditional reflectance vegetation indices (NDVI and NDII), evapotranspiration (ET), and soil moisture variability on weekly timescales

Joanna Joiner, Yasuko Yoshida, Martha Anderson, Thomas Holmes, Christopher Hain, Rolf Reichle, Randal Koster, Elizabeth Middleton, Fan-Wei Zeng
2018 Remote Sensing of Environment  
Monitoring the effects of water availability on vegetation globally using satellites is important for applications such as drought early warning, precision agriculture, and food security as well as for  ...  are dominated by grasslands, shrublands, and savannas whose root systems are generally contained within the 1 m RZM layer.  ...  The MERRA-2 results were significantly improved as compared with the predecessor MERRA system and generally better than the European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim/Land reanalysis  ... 
doi:10.1016/j.rse.2018.10.020 pmid:31217640 pmcid:PMC6582971 fatcat:cjuuf5ilmfhydamj7a3mlhtcjy

Analysis of an Interplanetary Coronal Mass Ejection by a Spacecraft Radio Signal: A Case Study

G. Molera Calvés, E. Kallio, G. Cimo, J. Quick, D. A. Duev, T. Bocanegra Bahamón, M. Nickola, M. A. Kharinov, A. G. Mikhailov
2017 Space Weather: The international journal of research and applications  
The authors would also like to acknowledge the ISWA for the ENLIL simulations and the data from the ACE spacecraft. T. Bocanegra Bahamón acknowledges the NWO-ShAO agreement on collaboration in VLBI.  ...  The data presented in this paper are available at an online repository (  ...  Use of radio telescopes that already monitor 24/7 for possible solar flares, could allow real-time observations studying ICMEs and their propagation.  ... 
doi:10.1002/2017sw001701 fatcat:odmmq6roxzfhvp6ny4znvsbwfa

Orographic and convective gravity waves above the Alps and Andes Mountains during GPS radio occultation events – a case study

Rodrigo Hierro, Andrea K. Steiner, Alejandro de la Torre, Peter Alexander, Pablo Llamedo, Pablo Cremades
2018 Atmospheric Measurement Techniques  
The utility of Global Positioning System (GPS) radio occultation (RO) observations for the detection of convective systems is tested.  ...  The case studies are investigated using mesoscale Weather Research and Forecasting (WRF) simulations, ERA-Interim reanalysis data, and measured RO temperature profiles.  ...  We are grateful to Riccardo Biondi (ISAC-CNR, Rome, Italy) for advice on cloud data and provision of the cloud detection algorithm and the reference climatology.  ... 
doi:10.5194/amt-11-3523-2018 fatcat:q2hg2efuwrcdvmolb4rzxsgjiy


Guntur Adhi Rahmawan, Ulung Jantama Wisha
2020 International Journal of Remote Sensing and Earth Sciences (IJReSES)  
Sea level anomaly (SLA) was identified using Jason-2 satellite data for the 2009–2015 period, to enable the mathematical prediction of SLR rate for further years.  ...  Overall, negative mode of IOD and positive phase of ENSO tend to trigger anomalies of sea level at certain times, and have a stronger influence on increasing SLA and sea surface temperature anomaly (SSTA  ...  To address this, we tried to correlate the real-time multivariate MJO (RMM) index retrieved from with the anomaly in sea level drawn from Jason-2 satellite data analysis  ... 
doi:10.30536/j.ijreses.2019.v16.a3091 fatcat:lxpeqeozvzhvrmywnhgfy7spzy
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