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Hassan Bencherif

127
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Ozone Trend Analysis in Natal (5.4°S, 35.4°W, Brazil) Using Multi-Linear Regression and Empirical Decomposition Methods over 22 Years of Observations

Hassan Bencherif , Damaris Kirsch Pinheiro , Olivier Delage , Tristan Millet , Lucas Vaz Peres
Remote Sensing, 2024, 16 (1), pp.208. ⟨10.3390/rs16010208⟩
Journal articles hal-04377686v1
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Impacts of the antartic ozone hole influence events over southern Brazil in October 2015

Alanna M De Souza , Lucas V Peres , Gabriela D Bittencourt , Damaris K Pinheiro , Bibiana C Lopes
Anais da Academia Brasileira de Ciências, 2023, 95 (suppl 3), ⟨10.1590/0001-3765202320210528⟩
Journal articles hal-04237430v1
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UV index seasonal variability in an Amazonian city of Brazil based on satellite data

Gabriela Cacilda Godinho Dos Reis , Hassan Bencherif , Kevin Lamy , Lucas Vaz Peres , Marco Antonio Godinho Dos Reis
cienca e natura, 2023, 45 (esp. 2), pp.e76670. ⟨10.5902/2179460X76670⟩
Journal articles hal-04336067v1

Response of the boundary layer clouds to the surface forcings: A case study of western India

Sourita Saha , Dharmendra Kumar Kamat , Som Sharma , Prashant Kumar , Kondapalli Niranjan Kumar
Remote Sensing Applications: Society and Environment, 2023, pp.101073. ⟨10.1016/j.rsase.2023.101073⟩
Journal articles hal-04250796v1
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Aerosol Optical Properties and Types over Southern Africa and Reunion Island Determined from Ground-Based and Satellite Observations over a 13-Year Period (2008–2021)

Marion Ranaivombola , Nelson Bègue , Hassan Bencherif , Tristan Millet , Venkataraman Sivakumar
Remote Sensing, 2023, 15 (6), pp.1581. ⟨10.3390/rs15061581⟩
Journal articles hal-04037903v1
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Aerosol Distributions and Transport over Southern Morocco from Ground-Based and Satellite Observations (2004–2020)

Tristan Millet , Hassan Bencherif , Aziza Bounhir , Nelson Bègue , Kévin Lamy
Atmosphere, 2022, 13, ⟨10.3390/atmos13060923⟩
Journal articles hal-04137069v1
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Solar Ultraviolet Radiation Temporal Variability Analysis from 2-Year of Continuous Observation in an Amazonian City of Brazil

Gabriela Reis , Samuel Souza , Helvécio Neto , Rardiles Branches , Rodrigo Silva
Atmosphere, 2022, 13 (7), pp.1054. ⟨10.3390/atmos13071054⟩
Journal articles hal-04101024v1
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Aerosol Distributions and Sahara Dust Transport in Southern Morocco, from Ground-Based and Satellite Observations

Hassan Bencherif , Aziza Bounhir , Nelson Bègue , Tristan Millet , Zouhair Benkhaldoun
Remote Sensing, 2022, 14 (10), pp.2454. ⟨10.3390/rs14102454⟩
Journal articles hal-03681065v1
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Solar Ultraviolet Radiation in Pretoria and Its Relations to Aerosols and Tropospheric Ozone during the Biomass Burning Season

D. Jean Du Preez , Hassan Bencherif , Thierry Portafaix , Kévin Lamy , Caradee Yael Wright
Atmosphere, 2021, 12 (2), pp.132. ⟨10.3390/atmos12020132⟩
Journal articles hal-03129666v1
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Correction: Lamy et al. Monitoring Solar Radiation UV Exposure in the Comoros. Int. J. Environ. Res. Public Health 2021, 18, 10475

Kévin Lamy , Marion Ranaivombola , Hassan Bencherif , Thierry Portafaix , Mohamed Abdoulwahab Toihir
International Journal of Environmental Research and Public Health, 2021, 18 (24), pp.13399. ⟨10.3390/ijerph182413399⟩
Journal articles hal-03544972v1
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Eventos de Influência do Buraco de Ozônio Antártico Ocorridos em 2016 Sobre o Sul do Brasil

Marco Antônio Godinho dos Reis , Lucas Vaz Peres , Gabriela Dornelles Bittencourt , Damaris Kirsch Pinheiro , Luiz Angelo Steffenel
Anuário do Instituto de Geociências, 2021, 44, pp.36142. ⟨10.11137/1982-3908_2021_44_36142⟩
Journal articles hal-03272756v1
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Monitoring Solar Radiation UV Exposure in the Comoros

Kévin Lamy , Marion Ranaivombola , Hassan Bencherif , Thierry Portafaix , Mohamed Abdoulwahab Toihir
International Journal of Environmental Research and Public Health, 2021, 18 (19), pp.10475. ⟨10.3390/ijerph181910475⟩
Journal articles hal-03543764v1
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Transport and Variability of Tropospheric Ozone over Oceania and Southern Pacific during the 2019–20 Australian Bushfires

Nelson Bègue , Hassan Bencherif , Fabrice Jégou , Hélène Vérèmes , Sergey Khaykin
Remote Sensing, 2021, 13 (16), pp.3092. ⟨10.3390/rs13163092⟩
Journal articles insu-03315817v1

Forecasting upper atmospheric scalars advection using deep learning: an O3 experiment

Luiz Angelo Steffenel , Vagner Anabor , Damaris Kirsch Pinheiro , Lissette Guzman , Gabriela Dornelles Bittencourt
Machine Learning, 2021, ⟨10.1007/s10994-020-05944-x⟩
Journal articles hal-03160652v1
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Inter-Comparison Campaign of Solar UVR Instruments under Clear Sky Conditions at Reunion Island (21 • S, 55 • E)

Jean-Maurice Cadet , Thierry Portafaix , Hassan Bencherif , Kévin Lamy , Colette Brogniez
International Journal of Environmental Research and Public Health, 2020, 17 (8), pp.2867. ⟨10.3390/ijerph17082867⟩
Journal articles hal-02556377v1
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Surface Temperature Trend Estimation over 12 Sites in Guinea Using 57 Years of Ground-Based Data

René Tato Loua , Hassan Bencherif , Nelson Bègue , Nkanyiso Mbatha , Thierry Portafaix
Climate , 2020, 8 (6), ⟨10.3390/cli8060068⟩
Journal articles hal-02666651v1
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Solar UV Radiation in the Tropics: Human Exposure at Reunion Island (21° S, 55° E) during Summer Outdoor Activities

Jean-Maurice Cadet , Hassan Bencherif , Nicolas Cadet , Kévin Lamy , Thierry Portafaix
International Journal of Environmental Research and Public Health, 2020, 17 (21), ⟨10.3390/ijerph17218105⟩
Journal articles hal-03002905v1
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Time Series Analysis and Forecasting Using a Novel Hybrid LSTM Data-Driven Model Based on Empirical Wavelet Transform Applied to Total Column of Ozone at Buenos Aires, Argentina (1966–2017)

Nkanyiso Mbatha , Hassan Bencherif
Atmosphere, 2020, 11 (5), ⟨10.3390/atmos11050457⟩
Journal articles hal-02570876v1
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Toward an Early Warning System for Health Issues Related to Particulate Matter Exposure in Brazil: The Feasibility of Using Global PM 2.5 Concentration Forecast Products

Emmanuel Roux , Eliane Ignotti , Nelson Bègue , Hassan Bencherif , Thibault Catry
Remote Sensing, 2020, Remote Sensing for Health: from Fine-Scale Investigations towards Early-Warning Systems, 12 (24), pp.4074. ⟨10.3390/rs12244074⟩
Journal articles hal-03060437v2
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Investigating the Long-Range Transport of Aerosol Plumes Following the Amazon Fires (August 2019): A Multi-Instrumental Approach from Ground-Based and Satellite Observations

Hassan Bencherif , Nelson Bègue , Damaris Kirsch Pinheiro , David Jean Du Preez , Jean-Maurice Cadet
Remote Sensing, 2020, Advances in Remote Sensing of Biomass Burning, 12 (22), pp.3846. ⟨10.3390/rs12223846⟩
Journal articles hal-03027089v1
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Comparison of GOME‐2 UVA Satellite Data to Ground‐Based UVA Measurements in South Africa

David Jean Du Preez , Alfio Parisi , Danielle Millar , Hassan Bencherif , Caradee Y. Wright
Photochemistry and Photobiology, 2020, 96 (6), pp.1342-1349. ⟨10.1111/php.13308⟩
Journal articles hal-02917498v1
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Investigating the Large-Scale Transport of a Volcanic Plume and the Impact on a Secondary Site

David Jean Du Preez , Hassan Bencherif , Nelson Bègue , Lieven Clarisse , Rebecca F Hoffman
Atmosphere, 2020, 11 (5), pp.548. ⟨10.3390/atmos11050548⟩
Journal articles hal-02732853v1
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Analysis of the middle atmospheric ozone using SABER observations: a study over mid-latitudes in the northern and southern hemispheres

Vaidehi Joshi , Som Sharma , Kondapalli Niranjan Kumard , Nisha B Patel , Prashant Kumar
Climate Dynamics, 2020, ⟨10.1007/s00382-020-05124-6⟩
Journal articles hal-02455982v1
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Ozone Variability and Trend Estimates from 20-Years of Ground-Based and Satellite Observations at Irene Station, South Africa

Hassan Bencherif , Abdoulwahab M Toihir , Nkanyiso Mbatha , Venkataraman Sivakumar , David Jean Du Preez
Atmosphere, 2020, Tropospheric Ozone Observations, 11, ⟨10.3390/atmos11111216⟩
Journal articles hal-03002900v1
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Statistical analysis of the long-range transport of the 2015 Calbuco volcanic plume from ground-based and space-borne observations

Nelson Bègue , Lerato Shikwambana , Hassan Bencherif , Juan Pallotta , Venkataraman Sivakumar
Annales Geophysicae, 2020, 38 (2), pp.395 - 420. ⟨10.5194/angeo-38-395-2020⟩
Journal articles hal-02524557v1
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Solar UV Radiation in Saint-Denis, La Réunion and Cape Town, South Africa: 10 years Climatology and Human Exposure Assessment at Altitude

Jean-Maurice Cadet , Hassan Bencherif , David J Du Preez , Thierry Portafaix , Nathalie Sultan-Bichat
Atmosphere, 2019, 10 (589), pp.1-14. ⟨10.3390/atmos10100589⟩
Journal articles hal-02378223v1
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Clear-sky ultraviolet radiation modelling using output from the Chemistry Climate Model Initiative

Kévin Lamy , Thierry Portafaix , Béatrice Josse , Colette Brogniez , Sophie Godin-Beekmann
Atmospheric Chemistry and Physics, 2019, 19 (15), pp.10087-10110. ⟨10.5194/acp-19-10087-2019⟩
Journal articles insu-02265790v2
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Study on Temporal Variations of Surface Temperature and Rainfall at Conakry Airport, Guinea: 1960–2016

René Tato Loua , Hassan Bencherif , Nkanyiso Mbatha , Nelson Bègue , Alain Hauchecorne
Climate , 2019, 7 (7), art. 93 (26 p.). ⟨10.3390/cli7070093⟩
Journal articles insu-02196177v1
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TREND-RUN model application of surface temperature and its implications for South African forestry and reforestation using local weather services data

Raven Jimmy , Pramanathan Govender , Hassan Bencherif , Matthew K. Moodley
Reforesta, 2019, 7, pp.50-72. ⟨10.21750/REFOR.7.05.67⟩
Journal articles hal-02275833v1
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Investigation of the behavior of the atmospheric dynamics during occurrences of the ozone hole's secondary effect in southern Brazil

Gabriela Dornelles Bittencourt , Damaris Kirsch Pinheiro , José Valentin Bageston , Hassan Bencherif , Luiz Angelo Steffenel
Annales Geophysicae, 2019, 37 (6), pp.1049-1061. ⟨10.5194/angeo-37-1049-2019⟩
Journal articles hal-02290588v1
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Analysis of a southern sub-polar short-term ozone variation event using a millimetre-wave radiometer

Pablo Facundo Orte , Elian Wolfram , Jacobo Salvador , Akira Mizuno , Nelson Bègue
Annales Geophysicae, 2019, 37 (4), pp.613-629. ⟨10.5194/angeo-37-613-2019⟩
Journal articles insu-02065404v1
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Spring and summer time ozone and solar ultraviolet radiation variations over Cape Point, South Africa

David J Du Preez , Jelena V Ajti´c Ajti´c , Hassan Bencherif , Nelson Bègue , Jean-Maurice Cadet
Annales Geophysicae, 2019, 37 (2), pp.129-141. ⟨10.5194/angeo-37-129-2019⟩
Journal articles hal-02097468v1
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Monitoramento de Longo Prazo e Climatologia de Campos Estratosféricos quando da Ocorrência dos Eventos de Influência do Buraco de Ozônio Antártico sobre o Sul do Brasil

Lucas Vaz Peres , Damaris Kirsch Pinheiro , Luiz Angelo Steffenel , David Mendes , José Valentin Bageston
Revista Brasileira de Meteorologia, 2019, 34 (1), pp.151-163. ⟨10.1590/0102-77863340030⟩
Journal articles hal-02157224v1
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A major event of Antarctic ozone hole influence in southern Brazil in October 2016: an analysis of tropospheric and stratospheric dynamics

Gabriela Dornelles Bittencourt , Caroline Bresciani , Damaris Pinheiro , José Valentin Bageston , Nelson Jorge Schuch
Annales Geophysicae, 2018, 36 (2), pp.415 - 424. ⟨10.5194/angeo-36-415-2018⟩
Journal articles hal-01753371v1
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Mesopause region temperature variability and its trend in southern Brazil

Mateus S Venturini , José V Bageston , Nattan Roberto Caetano , Lucas Peres , Hassan Bencherif
Annales Geophysicae, 2018, 36 (2), pp.301 - 310. ⟨10.5194/angeo-36-301-2018⟩
Journal articles hal-01753378v1
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Ultraviolet radiation modelling from ground-based and satellite measurements on Reunion Island, southern tropics

Kévin Lamy , Thierry Portafaix , Colette Brogniez , Sophie Godin-Beekmann , Hassan Bencherif
Atmospheric Chemistry and Physics, 2018, 18 (1), pp.227-246. ⟨10.5194/acp-18-227-2018⟩
Journal articles hal-01575229v2
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Report of a large depletion in the ozone layer over southern Brazil and Uruguay by using multi-instrumental data

Caroline Bresciani , Gabriela Dornelles Bittencourt , José Valentin Bageston , Damaris Kirsch Pinheiro , Nelson Jorge Schuch
Annales Geophysicae, 2018, 36 (2), pp.405 - 413. ⟨10.5194/angeo-36-405-2018⟩
Journal articles hal-01753357v1
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Variability and trend in ozone over the southern tropics and subtropics

Abdoulwahab Mohamed Toihir , Thierry Portafaix , Venkataraman Sivakumar , Hassan Bencherif , Andrea Pazmino
Annales Geophysicae, 2018, 36 (2), pp.381-404. ⟨10.5194/angeo-36-381-2018⟩
Journal articles hal-01753340v1
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Study on carbon dioxide atmospheric distribution over the Southwest Indian Ocean islands using satellite data: Part 1 – Climatology and seasonal results

Xolile Ncipha , Venkataraman Sivakumar , S. Rakotondraompiana , Hassan Bencherif
Journal of Atmospheric and Solar-Terrestrial Physics, 2018, 179, pp.569-579. ⟨10.1016/j.jastp.2018.07.017⟩
Journal articles hal-02098041v1
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Climatology of Guinea: Study of Climate Variability in N’zerekore

René Tato Loua , Maoro Beavogui , Hassan Bencherif , Alpha Boubacar Barry , Zoumana Bamba
Journal of Agricultural Science and Technology (JAST), 2017, 7 (4), ⟨10.17265/2161-6256/2017.04.001⟩
Journal articles hal-01634369v1
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Measurements of the total ozone column using a Brewer spectrophotometer and TOMS and OMI satellite instruments over the Southern Space Observatory in Brazil

Lucas Vaz Peres , Hassan Bencherif , Nkanyiso Mbatha , André Passaglia Schuch , Mohamed Toihir Abdoulwahab
Annales Geophysicae, 2017, 35, pp.25 - 37. ⟨10.5194/angeo-35-25-2017⟩
Journal articles hal-01446925v1
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Use of the TREND RUN model to deduce trends in South African Weather Service (SAWS) atmospheric data: Case study over Addo (33.568°S, 25.692°E) Eastern Cape, South Africa

Venkataraman Sivakumar , Raven Jimmy , Hassan Bencherif , Nelson Bègue , Thierry Portafaix
Journal of Neutral Atmosphere, 2017, 1, pp.51 - 58
Journal articles hal-02098051v1
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Long-range isentropic transport of stratospheric aerosols over Southern Hemisphere following the Calbuco eruption in April 2015

Nelson Bègue , Damien Vignelles , Gwenaël Berthet , Thierry Portafaix , Guillaume Payen
Atmospheric Chemistry and Physics, 2017, 17 (24), pp.15019-15036. ⟨10.5194/acp-17-15019-2017⟩
Journal articles insu-01545562v1
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Statistical analysis of the mesospheric inversion layers over two symmetrical tropical sites: Réunion (20.8° S, 55.5° E) and Mauna Loa (19.5° N, 155.6° W)

Nelson Bègue , Nkanyiso Mbatha , Hassan Bencherif , René Tato Loua , Venkataraman Sivakumar
Annales Geophysicae, 2017, 35 (6), pp.1177-1194. ⟨10.5194/angeo-35-1177-2017⟩
Journal articles hal-01634441v1
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Comparison of Ground-Based and Satellite-Derived Solar UV Index Levels at Six South African Sites

Jean-Maurice Cadet , Hassan Bencherif , Thierry Portafaix , Kévin Lamy , Katlego Ncongwane
International Journal of Environmental Research and Public Health, 2017, 14 (11), ⟨10.3390/ijerph14111384⟩
Journal articles hal-01646295v1
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Evaluation of Inter-Hemispheric Characteristics of the Tropopause–Stratopause–Mesopause Over Sub-Tropical Regions

Som Sharma , Prashant Kumar , Rajesh Vaishnav , Chintan Jethva , Hassan Bencherif
Pure and Applied Geophysics, inPress, ⟨10.1007/s00024-017-1706-8⟩
Journal articles hal-01634456v1
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Ozone profiles obtained by DIAL technique at Maïdo Observatory in La Réunion Island: comparisons with ECC ozone-sondes, ground-based FTIR spectrometer and microwave radiometer measurements

Thierry Portafaix , Sophie Godin-Beekmann , Guillaume Payen , Martine de Mazière , Bavo Langerock
EPJ Web of Conferences, 2016, The 27th International Laser Radar Conference (ILRC 27), 119, pp.05005. ⟨10.1051/epjconf/201611905005⟩
Journal articles insu-01176100v1
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Investigations of the middle atmospheric thermal structure and oscillations over sub-tropical regions in the Northern and Southern Hemispheres

Som Sharma , Prashant Kumar , Chintan Jethva , Rajesh Vaishnav , Hassan Bencherif
Climate Dynamics, 2016, ⟨10.1007/s00382-016-3293-2⟩
Journal articles hal-01386387v1
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ARSAIO Overview: Atmospheric Research in Southern Africa and Indian Ocean: A South Africa – France bilateral collaborative programme

Venkataraman Sivakumar , Hassan Bencherif , Cathy Liousse , J. P. Beukes , Gideon van Zyl
The Clean Air Journal, 2015, 25 (2), ⟨10.1088/1748-9326/9/3/035003⟩
Journal articles hal-01387221v1
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Studies on CO variation and trends over South Africa and the Indian Ocean using TES satellite data

Mohamed Toihir Abdoulwahab , Sivakumar K Venkataraman , Nkanyiso M Mbatha , Sivakumar K Sangeetha , Hassan Bencherif
South African Journal of Science, 2015, 111 (9/10), ⟨10.17159/sajs.2015/20140174⟩
Journal articles hal-01389450v1
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Comparison of total column ozone obtained by the IASI-MetOp satellite with ground-based and OMI satellite observations in the southern tropics and subtropics

Mohamed Toihir Abdoulwahab , Hassan Bencherif , Venkataraman Sivakumar , Laaziz El Amraoui , Thierry Portafaix
Annales Geophysicae, 2015, ⟨10.5194/angeo-33-1135-2015⟩
Journal articles hal-01337336v1
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Long-term trends observed in the middle atmosphere temperatures using ground based LIDARs and satellite borne measurements

P. Kishore , M. Venkat Ratnam , I. Velicogna , Venkataraman Sivakumar , Hassan Bencherif
Annales Geophysicae, 2014, 32, pp.301-317. ⟨10.5194/angeo-32-301-2014⟩
Journal articles hal-01056701v1
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Extracting gravity wave parameters during the September 2002 Southern Hemisphere major sudden stratospheric warming using a SANAE imaging riometer

Nkanyiso Mbatha , Venkataraman Sivakumar , Hassan Bencherif , Sandile B. Malinga
Annales Geophysicae, 2013, 31 (10), pp.1709 - 1719. ⟨10.5194/angeo-31-1709-2013⟩
Journal articles hal-01387268v1
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Observations of a middle atmosphere thermal structure over Durban using a ground-based Rayleigh LIDAR and satellite data

Nkanyiso Mbatha , Venkataraman Sivakumar , Hassan Bencherif , Sandile B. Malinga , Sadhasivan R. Pillay
South African Journal of Science, 2012, 108 (1/2), pp.9. ⟨10.4102/sajs.v108i1/2.612⟩
Journal articles hal-00961524v1
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Analysis of a rapid increase of stratospheric ozone during late austral summer 2008 over Kerguelen (49.4° S, 70.3° E)

Hassan Bencherif , L. El Amraoui , Guillaume Kirgis , Jimmy Leclair de Bellevue , Alain Hauchecorne
Atmospheric Chemistry and Physics, 2011, 11 (1), pp.363-373. ⟨10.5194/acp-11-363-2011⟩
Journal articles hal-00505577v1
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Rayleigh LIDAR and satellite (HALOE, SABER, CHAMP and COSMIC) measurements of stratosphere-mesosphere temperature over a southern sub-tropical site, Reunion (20.8° S; 55.5° E): climatology and comparison study

Venkataraman Sivakumar , Vishnu Parimisetty Prasanth , P. Kishore , Hassan Bencherif , Philippe Keckhut
Annales Geophysicae, 2011, 29 (4), pp.649-662. ⟨10.5194/angeo-29-649-2011⟩
Journal articles hal-00586264v1
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Tropopause Characteristics and Variability from 11 yr of SHADOZ Observations in the Southern Tropics and Subtropics

Venkataraman Sivakumar , Hassan Bencherif , Nelson Bègue , Anne M. Thompson
Journal of Applied Meteorology and Climatology, 2011, 50 (7), pp.1403--1416. ⟨10.1175/2011JAMC2453.1⟩
Journal articles hal-00961639v1
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An evaluation of uncertainties in monitoring middle atmosphere temperatures with the ground-based lidar network in support of space observations

Philippe Keckhut , W. J. Randel , Chantal Claud , Thierry Leblanc , Wolfgang Steinbrecht
Journal of Atmospheric and Solar-Terrestrial Physics, 2011, 73 (5-6), pp.627-642. ⟨10.1016/j.jastp.2011.01.003⟩
Journal articles hal-00560268v1
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Midlatitude stratosphere - troposphere exchange as diagnosed by MLS O3 and MOPITT CO assimilated fields

L. El Amraoui , Jean-Luc Attié , N. Semane , M. Claeyman , V.-H. Peuch
Atmospheric Chemistry and Physics, 2010, 10, pp.2175-2194. ⟨10.5194/acp-10-2175-2010⟩
Journal articles meteo-00461842v1
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GOMOS ozone profile validation using ground-based and balloon sonde measurements

J. A. E. van Gijsel , D. P. J. Swart , Jean-Luc Baray , Hassan Bencherif , H. Claude
Atmospheric Chemistry and Physics, 2010, 10 (21), pp.10473-10488. ⟨10.5194/acp-10-10473-2010⟩
Journal articles hal-00470062v1
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Climatology and comparison of ozone from ENVISAT/GOMOS and SHADOZ/balloon-sonde observations in the southern tropics

Nahoudha Mzé , Alain Hauchecorne , Hassan Bencherif , Francis Dalaudier , Jean-Loup Bertaux
Atmospheric Chemistry and Physics, 2010, 10 (16), pp.8025-8035. ⟨10.5194/acp-10-8025-2010⟩
Journal articles hal-00449101v1
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Study on the impact of sudden stratosphere warming in the upper mesosphere-lower thermosphere regions using satellite and HF radar measurements

Nkanyiso Mbatha , Venkataraman Sivakumar , Sandile B. Malinga , Hassan Bencherif , S. R. Pillay
Atmospheric Chemistry and Physics, 2010, 10 (7), pp.3397--3404. ⟨10.5194/acp-10-3397-2010⟩
Journal articles hal-00961525v1
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Temperature variability and trends in the UT-LS over a subtropical site: Reunion (20.8° S, 55.5° E)

Nelson Bègue , Hassan Bencherif , Venkataraman Sivakumar , Guillaume Kirgis , Nahoudha Mzé
Atmospheric Chemistry and Physics, 2010, 10 (17), pp.8563--8574. ⟨10.5194/acp-10-8563-2010⟩
Journal articles hal-00961638v1
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Nocturnal temperature changes over Tropics during CAWSES -III campaign: Comparison with numerical models and satellite data

U. Jaya Prakash Raju , Philippe Keckhut , Yann Courcoux , Marion Marchand , Slimane Bekki
Journal of Atmospheric and Solar-Terrestrial Physics, 2010, 72 (16), pp.1171-1179. ⟨10.1016/j.jastp.2010.07.013⟩
Journal articles hal-00509028v1
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Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations

Vishnu Parimisetty Prasanth , Venkataraman Sivakumar , S. Sridharan , Y. Bhavani Kumar , Hassan Bencherif
Annales Geophysicae, 2009, 27 (10), pp.3811--3823. ⟨10.5194/angeo-27-3811-2009⟩
Journal articles hal-00961523v1
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Evaluation of balloon and satellite water vapour measurements in the Southern tropical and subtropical UTLS during the HIBISCUS campaign

Nadège Montoux , Alain Hauchecorne , Jean-Pierre Pommereau , Franck Lefèvre , Georges Durry
Atmospheric Chemistry and Physics, 2009, 9 (14), pp.5299-5319. ⟨10.5194/acp-9-5299-2009⟩
Journal articles hal-00328075v2
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Seasonal oscillations of middle atmosphere temperature observed by Rayleigh lidars and their comparisons with TIMED/SABER observations

Xiankang Dou , Tao Li , Jiyao Xu , Han-Li Liu , Xianghui Xue
Journal of Geophysical Research: Atmospheres, 2009, 114 (D20), pp.D20103. ⟨10.1029/2008JD011654⟩
Journal articles hal-00406337v1
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Stratospheric ozone climatology and variability over a southern subtropical site: Reunion Island (21° S; 55° E)

Venkataraman Sivakumar , Thierry Portafaix , Hassan Bencherif , Sophie Godin-Beekmann , Serge Baldy
Annales Geophysicae, 2007, 25 (11), pp.2321-2334. ⟨10.5194/angeo-25-2321-2007⟩
Journal articles hal-00243141v1
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20-year LiDAR observations of stratospheric sudden warming over a mid-latitude site, Observatoire de Haute Provence (OHP; 44° N, 6° E): case study and statistical characteristics

D. V. Charyulu , Venkataraman Sivakumar , Hassan Bencherif , Guillaume Kirgis , Alain Hauchecorne
Atmospheric Chemistry and Physics Discussions, 2007, 7 (6), pp.15739-15779. ⟨10.5194/acpd-7-15739-2007⟩
Journal articles hal-00328241v1

Examination of the 2002 major warming in the southern hemisphere using ground-based and Odin/SMR assimilated data: stratospheric ozone distributions and tropic/mid-latitude exchange

Hassan Bencherif , Laaziz El-Amraoui , N. Sernane , S. Massart , D. V. Charyulu
Canadian Journal of Physics, 2007, 85 (11), pp.1287-1300. ⟨10.1139/P07-143⟩
Journal articles hal-00255725v1
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Tropopause characteristics over a southern subtropical site, Reunion Island (21°S, 55°E): Using radiosonde-ozonesonde data

Venkataraman Sivakumar , Jean-Luc Baray , Serge Baldy , Hassan Bencherif
Journal of Geophysical Research: Atmospheres, 2006, 111 (D19), pp.D19111. ⟨10.1029/2005JD006430⟩
Journal articles hal-01894050v1
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An instrumented station for the survey of ozone and climate change in the southern tropics

Jean-Luc Baray , Jean Leveau , Serge Baldy , Jean Jouzel , Philippe Keckhut
Journal of Environmental Monitoring, 2006, 8 (10), pp.1020-1028. ⟨10.1039/b607762e⟩
Journal articles hal-00145015v1
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Laser propulsion activity in South Africa

M M Michaelis , A Forbes , W Klopper , Hassan Bencherif , S Jolivet
South African Journal of Science, 2006, 102
Journal articles hal-03543745v1
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Temperature climatology and trend estimates in the UTLS region as observed over a southern subtropical site, Durban, South Africa

Hassan Bencherif , R. D. Diab , Thierry Portafaix , Béatrice Morel , Philippe Keckhut
Atmospheric Chemistry and Physics, 2006, 6 (12), pp.5121-5128. ⟨10.5194/acp-6-5121-2006⟩
Journal articles hal-00328465v1
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Rayleigh lidar observations of double stratopause structure over three different northern hemisphere stations

Venkataraman Sivakumar , Hassan Bencherif , Alain Hauchecorne , Philippe Keckhut , D. N. Rao
Atmospheric Chemistry and Physics Discussions, 2006, 6 (4), pp.6933-6956
Journal articles hal-00327995v1
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Lidar observations of middle atmospheric gravity wave activity over a low-latitude site (Gadanki, 13.5° N, 79.2° E)

Venkataraman Sivakumar , P. B. Rao , Hassan Bencherif
Annales Geophysicae, 2006, 24 (3), pp.823-834
Journal articles hal-00330054v1
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An unusual stratospheric ozone decrease in the Southern Hemisphere subtropics linked to isentropic air-mass transport as observed over Irene (25.5 S, 28.1 E) in mid-May 2002

N. Semane , Hassan Bencherif , Béatrice Morel , Alain Hauchecorne , R.D. Diab
Atmospheric Chemistry and Physics, 2006, 6 (7), pp.1927-1936. ⟨10.5194/acp-6-1927-2006⟩
Journal articles hal-00083644v1
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Fine-scale study of a thick stratospheric ozone lamina at the edge of the southern subtropical barrier: 2. Numerical simulations with coupled dynamics models

Béatrice Morel , Hassan Bencherif , Philippe Keckhut , Thierry Portafaix , Alain Hauchecorne
Journal of Geophysical Research: Atmospheres, 2005, 110 (17), pp.D17101. ⟨10.1029/2004JD005737⟩
Journal articles hal-00068745v1
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An unusual stratospheric ozone decrease linked to isentropic air-mass transport as observed over Irene (25.5° S, 28.1° E) in mid-May 2002

N. Semane , Hassan Bencherif , Béatrice Morel , Alain Hauchecorne , R. D. Diab
Atmospheric Chemistry and Physics Discussions, 2005, 5 (6), pp.12617-12639
Journal articles hal-00327990v1

Stratospheric temperature monitoring using a vibrational Raman lidar. Part 1: aerosols and ozone interferences

Denis Faduilhe , Philippe Keckhut , Hassan Bencherif , Laurent Robert , Serge Baldy
Journal of Environmental Monitoring, 2005, 7, pp.357-364. ⟨10.1039/b415299a⟩
Journal articles hal-00068741v1
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Rayleigh lidar observation of a warm stratopause over a tropical site, Gadanki (13.5° N; 79.2° E)

Venkataraman Sivakumar , Béatrice Morel , Hassan Bencherif , Jean-Luc Baray , Serge Baldy
Atmospheric Chemistry and Physics, 2004, 4 (7), pp.1989-1996. ⟨10.5194/acp-4-1989-2004⟩
Journal articles hal-00328371v1

Investigation of the tidal variations in a 3-D dynamics-chemistry-transport model of the middle atmosphere

B. Morel , Philippe Keckhut , Hassan Bencherif , Alain Hauchecorne , S. Baldy
Journal of Atmospheric and Solar-Terrestrial Physics, 2004, 66 (3-4), pp.251-265. ⟨10.1016/j.jastp.2003.11.004⟩
Journal articles insu-03527698v1
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Fine-scale study of a thick stratospheric ozone lamina at the edge of the southern subtropical barrier

Thierry Portafaix , Béatrice Morel , Hassan Bencherif , Serge Baldy , Sophie Godin-Beekmann
Journal of Geophysical Research: Atmospheres, 2003, 108 (D6), ⟨10.1029/2002JD002741⟩
Journal articles hal-01356763v1
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LIDAR observations of lower stratospheric aerosols over South Africa linked to large scale transport across the southern subtropical barrier

Hassan Bencherif , Thierry Portafaix , Jean-Luc Baray , Béatrice Morel , Serge Baldy
Journal of Atmospheric and Solar-Terrestrial Physics, 2003, 65 (6), pp.707 - 715. ⟨10.1016/S1364-6826(03)00006-3⟩
Journal articles hal-01387242v1
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Analysis of SO 2 pollution in the South Durban Industrial Basin

Roseanne Diab , Arnold Prause , Hassan Bencherif
South African Journal of Science, 2002
Journal articles hal-01446957v1

Evidence of tidal perturbations in the middle atmosphere over Southern Tropics as deduced from LIDAR data analyses

Béatrice Morel , Hassan Bencherif , Philippe Keckhut , Serge Baldy , Alain Hauchecorne
Journal of Atmospheric and Solar-Terrestrial Physics, 2002, 64 (18), pp.1979 - 1988. ⟨10.1016/S1364-6826(02)00223-7⟩
Journal articles hal-01633192v1
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Climatological analysis of temperature and pluviometry in Guinea 1960-2016

René Tato Loua , Hassan Bencherif , Nkanyiso Mbatha , Nelson Bègue , Zoumana Bamba
34th Annual Conference of the South African Society for Atmospheric Science, Sep 2018, Durban, South Africa. pp.162-165
Conference papers hal-02098059v1
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An exploratory analysis of low-ozone events during spring and summer months over Cape Point, South Africa

David Jean Du Preez , Nelson Bègue , Hassan Bencherif , Caradee y Wright
34th Annual Conference of the South African Society for Atmospheric Science, Sep 2018, Durban, South Africa. pp.59-62
Conference papers hal-02097470v1
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Comparison of summer and spring carbon dioxide vertical and spatial distribution over the Southwest Indian Ocean Islands using TES data

Xolile Ncipha , Venkataraman Sivakumar , Solofo Rakotondraompiana , Hassan Bencherif
32nd Annual conference of South African Society for Atmospheric Sciences, Oct 2016, Cape Town, South Africa
Conference papers hal-01447083v1

Influence of the dynamical activity on the inter-annual variability of ozone in the tropics

Thierry Portafaix , Mohamed Toihir Abdoulwahab , Hassan Bencherif , Sophie Godin-Beekmann , Venkataraman Sivakumar
Quadrennial Ozone Symposium 2016, Sep 2016, Edinburgh, United Kingdom. pp.QOS2016-161
Conference papers insu-01355411v1
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Ozone Climatology obtained by a combination of MLS/AURA and SHADOZ ozonesondes profiles over southern tropic and subtropic

Mohamed Toihir Abdoulwahab , Venkataraman Sivakumar , Hassan Bencherif , Thierry Portafaix
EUMETSAT Meteorological Satellite Conference, Jun 2015, Toulouse, France
Conference papers hal-01337344v1
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Ozone profiles obtained by DIAL technique at Maïdo Observatory in La Reunion Island: comparisons with ECC ozone-sondes, ground-based FTIR spectrometer and microwave radiometer measurements

Thierry Portafaix , Sophie Godin-Beekmann , Guillaume Payen , Martine de Mazière , Bavo Langerock
ILRC 27, 27th International Laser Radar Conference, Jul 2015, New-York, United States
Conference papers hal-01766832v1

Analysis of Isentropic Transport in the Lower Tropical Stratosphere from Laminae Observed in Shadoz Ozone Profiles

Thierry Portafaix , Hassan Bencherif , Sophie Godin-Beekmann , Nelson Bègue , A. Culot
AGU Fall Meeting 2014, Dec 2014, San Francisco, United States
Conference papers insu-01190776v1

ROSEA : Réseau d'Observatoires pour la Surveillance et l'Exploration de l'Atmosphère

Jean-Luc Baray , Yann Courcoux , Robert Delmas , Philippe Keckhut , Christophe Hoareau
Journée scientifique du Sirta, May 2012, Palaiseau, France
Conference papers hal-00968044v1

TREND-RUN model for performing the trend calculation on SAWS (South Africa Weather Service) atmospheric data

Hassan Bencherif , Venkataraman Sivakumar , R. Jimmy
28th Annual Conference of South African Society of Atmospheric Sciences, Sep 2012, Cape Town, South Africa. pp.90--91
Conference papers hal-00966645v1

Studies on CO distribution over South Africa, Madagascar and Reunion Island using Tropospheric Emission Spectrometer (TES) data

Mohamed Toihir Abdoulwahab , Venkataraman Sivakumar , Nkanyiso Mbatha , Hassan Bencherif
28th Annual Conference of South African Society of Atmospheric Sciences, Sep 2012, Cape Town, South Africa. pp.100--101
Conference papers hal-00966644v1

L'Observatoire de Physique de l'Atmosphère de la Réunion

Jean-Luc Baray , Robert Delmas , Yann Courcoux , Jean-Marc Metzger , Franck Gabarrot
Journée scientifique du Sirta, May 2011, Palaiseau, France
Conference papers hal-00968045v1

Tropopause characteristics and variability from 11-year SHADOZ observations in the southern tropics and sub-tropics

Venkataraman Sivakumar , Hassan Bencherif , Nelson Bègue , Anne M. Thompson
NDACC symposium, Nov 2011, Saint-Paul, La, Réunion. pp.En ligne
Conference papers hal-00968039v1

L'implication de l'OPAR (Observatoire de Physique de l'Atmosphère de la Réunion) dans ROSEA (Réseau d'Observatoires pour la Surveillance de l'Eau Atmosphérique)

Jean-Luc Baray , Robert Delmas , Hassan Bencherif , Matthieu Plu
Prévisibilité du Climat Tropical, Centre international de Conférence de Météo-France, Jun 2010, Toulouse, France
Conference papers hal-00968047v1

Tropospheric and stratospheric temperature measurements by vibrational Raman-N2 LiDAR at Reunion Island (20.8°S, 55.5°E)

Hassan Bencherif , Philippe Keckhut
SAIP Annual Conference, Sep 2010, Pretoria, South Africa
Conference papers hal-00966651v1

Durban Rayleigh LiDAR measurments of stratospheric-mesospheric temperature structures

Nkanyiso Mbatha , Venkataraman Sivakumar , Sandile B. Malinga , Hassan Bencherif , Sadhasivan R. Pillay
25th International Laser Radar Conference, Jul 2010, St Petersburg, Russia. pp.987--990
Conference papers hal-00966641v1

On the use of a regression model for trend estimates from ground based atmospheric observations in the Southern Hemisphere

Hassan Bencherif , Nelson Bègue , Anne M. Thompson , Nahoudha Mzé , N. Calonne
26th Annual conference of South African Society for Atmospheric Sciences, Sep 2010, Gariep Dam, South Africa. pp.7--8
Conference papers hal-00968034v1

Study on the impact of Sudden Stratospheric warming in the upper mesosphere and lower thermosphere region using satellite and HF radar measurements

Nkanyiso Mbatha , Sandile B. Malinga , Venkataraman Sivakumar , Sadhasivan R. Pillay , Hassan Bencherif
AOGS 2009, Aug 2009, Singapour, Singapore. pp.En ligne
Conference papers hal-00966649v1

LiDAR for Atmosphere Research over Africa (LARA)

Venkataraman Sivakumar , M. Tesfaye , D. Moema , A. Sharma , C. Bollig
2nd African Laser Centre Symposium, Jul 2009, Port Elizabeth, South Africa. pp.En ligne
Conference papers hal-00966646v1

Satellite validation with lidar

J. A. E. van Gijsel , D. P. J. Swart , Jean-Luc Baray , Hassan Bencherif , Hans Claude
Atmospheric Science Conference, Sep 2009, Barcelona, Spain
Conference papers hal-01196879v1

LIDAR for atmosphere Research over Africa (LARA) : A trilateral research programme

Venkataraman Sivakumar , Nkanyiso Mbatha , D. Moema , A. Sharma , C. Bollig
Environmental and Biological applications of Lasers, Jan 2008, Cairo, Egypt. pp.En ligne
Conference papers hal-00966650v1
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LiDAR for Atmosphere Research over Africa (LARA)

Venkataraman Sivakumar , D. Moema , C. Bollig , A. Sharma , Nkanyiso Mbatha
2nd CSIR Bi-annual conference, Nov 2008, Pretoria, South Africa. pp.En ligne
Conference papers hal-00966647v1

Télédétection Appliquée à l'Observation de l'Atmosphère : région tropicale de l'hémisphère sud

Hassan Bencherif , Jean-Luc Baray , Yann Courcoux
XIèmes Journées Scientifiques du Réseau Télédétection de l'AUF, Sep 2008, Antananarivo, Madagascar. pp.En ligne
Conference papers hal-00968041v1
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LIDAR for atmosphere Research over Africa: A trilateral research programme (LARA-TRIP)

Venkataraman Sivakumar , D. Moema , A. Sharma , Nkanyiso Mbatha , C. Bollig
24th International Laser Radar Conference, Jun 2008, Boulder, United States. pp.742--745
Conference papers hal-00966640v1

Investigation of temperature trends and gravity wave characteristics from LiDAR profiles recorded at Reunion Island (20.8°S, 55.5°E) from 1994 to 2007

Vishnu Parimisetty Prasanth , Hassan Bencherif , Venkataraman Sivakumar , Philippe Keckhut , Yann Courcoux
SPARC 4th General Assembly, Aug 2008, Bologna, Italy. pp.En ligne
Conference papers hal-00966653v1

Mesosphere-Lower Thermosphere (MLT) atmospheric structure, coupling and dynamics using ground-based and satellite instruments

Nkanyiso Mbatha , Sandile B. Malinga , Venkataraman Sivakumar , Sadhasivan R. Pillay , Hassan Bencherif
53rd annual conference of South Africa Institute of Physics, Jul 2008, Limpopo, South Africa. pp.En ligne
Conference papers hal-00966648v1

Stratospheric ozone variability and anomalies as derived from ground-based observations over southern Africa

Hassan Bencherif , Philippe Keckhut , Nahoudha Mzé , Venkataraman Sivakumar , Guillaume Kirgis
SPARC 4th General Assembly, Aug 2008, Bologna, Italy. pp.En ligne
Conference papers hal-00966652v1

Non-solid non-rigid optics for high-power laser systems

M. Michaelis , A. Forbes , A. Conti , N. Nativel , Hassan Bencherif
High-Power Laser Ablation 2006, Jun 2006, Taos, United States. pp.626115, ⟨10.1117/12.672988⟩
Conference papers hal-03543735v1
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The NDSC Ozone and Temperature LIDAR Algorithm Intercomparison Initiative (A2I): Project Overview

Thierry Leblanc , I. S. Mcdermid , P. von Der Gathen , M. Müller , F. Immler
22nd International Laser Radar Conference (ILRC 2004), Jul 2004, Matera, Italy. pp.881
Conference papers hal-00155169v1
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Validation of GOMOS Ozone Profiles Using NDSC Lidar: Statistical Comparisons

Philippe Keckhut , Stéphane Marchand , Alain Hauchecorne , Sophie Godin-Beekmann , Françoise Pinsard
ENVISAT Validation Workshop (ESA SP-531), Dec 2003, Frascati, Italy. pp.10.1
Conference papers hal-01331770v1

Laser propulsion experiments in South Africa

Max Michaelis , Ashokabose Moorgawa , Andrew Forbes , Wouter Klopper , Edric Mckenzie
International Symposium on High-Power Laser Ablation 2002, Sep 2002, Taos, United States. pp.691, ⟨10.1117/12.482141⟩
Conference papers hal-03543532v1

Deep Learning Forecast of Stratospheric Ozone Advection

Luiz Angelo Steffenel , Vagner Anabor , Damaris Kirsch Pinheiro , Hassan Bencherif
Quadrennial Ozone Symposium of the International Ozone Commission (QOS2021), Oct 2021, Daejeon, South Korea. , 2021
Conference poster hal-03581374v1
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Spatio-Temporal LSTM Forecasting of Ozone Secondary Events

Luiz Angelo Steffenel , Gustavo Rasera , Nelson Bègue , Damaris Kirsch , Hassan Bencherif
European Geosciences Union General Assembly (EGU), 2019, Vienna, Austria. 21, Geophysical Research Abstracts. ⟨10.1002/essoar.10500904.1⟩
Conference poster hal-02120012v1
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Inter-comparison campaign of solar UVR instruments at Réunion Island (21.0°S, 55,5°E) : findings and recommendations

Jean-Maurice Cadet , Thierry Portafaix , Hassan Bencherif , Colette Brogniez , N. Sébastien
European Conference on solar UV Monitoring, Sep 2018, Vienne, Austria. 2018
Conference poster hal-02098082v1
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Ultraviolet Radiation evolution during the 21st century

Kévin Lamy , Béatrice Josse , Thierry Portafaix , Hassan Bencherif , Sophie Godin-Beekmann
CCMI 2017, Chemistry-Climate Model Initiative Science Workshop, Jun 2017, Toulouse, France
Conference poster hal-01648231v1

Ultraviolet Radiation modeling from ground based and satellite measurements of Ozone over Réunion Island

Kévin Lamy , Thierry Portafaix , Hassan Bencherif , Sophie Godin-Beekmann , Colette Brogniez
Quadrennial Ozone Symposium 2016, Sep 2016, Edinburgh, United Kingdom. pp.QOS2016-81-6
Conference poster insu-01358032v1

Variability and Trend of Total Ozone Column from Brewer Spectrophotometer and Satellite Measurements Over South of Brazil

L Vaz Peres , Mohamed Toihir Abdoulwahab , André Passaglia Schuch , N Mbatha , Nelson Bègue
Quadriennal Ozone Symposium, Sep 2016, Edinburgh, United Kingdom
Conference poster hal-01767054v1
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Quantifying the impact of moderate volcanic eruptions on the stratosphere

Fabrice Jégou , Gwenaël Berthet , T Lurton , D Vignelles , Nelson Bègue
LEFE-CHAT workshop, 2015, Aussois, France
Conference poster hal-01337346v1

Simultaneous observation of aerosols using the Durban and Reunion lidar systems

Nkanyiso Bongumusa Mbatha , Venkataraman Sivakumar , Hassan Bencherif , Philippe Keckhut
26th International Laser Radar Conference (ILRC 26), Jun 2012, Porto Heli, Greece
Conference poster hal-00722444v1

Durban lidar for atmospheric studies : current status

Venkataraman Sivakumar , Nkanyiso Mbatha , Hassan Bencherif , Philippe Keckhut
26th International Laser Radar Conference (ILRC 26), Jun 2012, Porto Heli, Greece
Conference poster hal-00723307v1
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Total ozone variability and trend estimates from ground-based and satellite observations in the southern subtropics

Hassan Bencherif , Laaziz El Amraoui , Nelson Bègue , Nahoudha Mzé , Andrea Pazmino
22nd Quadrennial Ozone Symposium, Aug 2012, Toronto, Canada. Taylor and Francis, Atmosphere-Ocean, 53 (1), Proceedings of the Twenty-Second QOS
Conference poster hal-00732609v1

Lidar observations of middle atmospheric gravity wave activity over Reunion island (20.8°S, 55.5°E): Climatological study

Vishnu Parimisetty Prasanth , Hassan Bencherif , Venkataraman Sivakumar , Philippe Keckhut , Alain Hauchecorne
26th International Laser Radar Conference (ILRC 26), Jun 2012, Porto Heli, Greece
Conference poster hal-00722751v1