تصفح حسب المؤلف "Vethamony, Ponnumony"
-
Climate, trends and variability of extreme winds along the southwest coast of India
Abdulla, Cheriyeri Poyil; Aboobacker, Valliyil Mohammed; Vethamony, Ponnumony ( Wiley , 2023 , Article)The extreme wind climate and its trends and variability of the southwest coast of India, particularly the Kerala coast, are investigated using hourly reanalysis wind speeds for the period 1979–2021. The observed maximum ... -
Climatology and variability of wind speeds along the southwest coast of India derived from Climate Forecast System Reanalysis winds
Abdulla, Cheriyeri Poyil; Aboobacker, Valliyil Mohammed; Shanas, Puthuveetil Razak; Vijith, Vijayakumaran; Sajeev, Raveendran; Vethamony, Ponnumony... more authors ... less authors ( Wiley , 2022 , Article)Wind climate along the southwest coast of India (Kerala coast) has been analysed using 41 years of Climate Forecast System Reanalysis (CFSR) winds to delineate long-term trends and variability. The study reveals significant ... -
COVID-19 personal protection equipment (PPE): A potential source of microplastic pollution in the State of Qatar
Veerasingam, Subramanian; Al-Khayat, Jassim A; Vethamony, Ponnumony ( Qatar University Press , 2020 , Poster)Coronavirus disease 2019 (COVID-19) has become a global pandemic. The personal protection equipment (PPE), especially medical face masks and N95 filtering face piece respirators (FFRs) are typically worn by people at ... -
Detection of Wakashio oil spill off Mauritius using Sentinel-1 and 2 data: Capability of sensors, image transformation methods and mapping
Sankaran, Rajendran; Vethamony, Ponnumony; Sadooni, Fadhil N.; Al-Kuwari, Hamad Al-Saad; Al-Khayat, Jassim A.; Seegobin, Vashist O.; Govil, Himanshu; Nasir, Sobhi... more authors ... less authors ( Elsevier , 2021 , Article)Oil spill incidents contaminate water bodies, and damage the coastal and marine environment including coral reefs and mangroves, and therefore, monitoring the oil spills is highly important. This study discriminates the ... -
Distribution and environmental geochemical indices of mercury in tar contaminated beaches along the coast of Qatar
Elezz, Ahmed Abou; Castillo, Azenith; Hassan, Hassan Mustafa; Alsaadi, Hamood Abdulla; Vethamony, Ponnumony ( Elsevier , 2022 , Article)The current study aimed to gauge total mercury (THg) concentration and the environmental geochemical indices in tarmat contaminated sediments and test their presence in targeted coastal species. Layers of hard asphalt-like ... -
Enhancing subsea asset performance: Investigating the biomimetic functionality of the Mushroom Reef design in hydrodynamics, stability, and sedimentation
Bruno, Welter Giraldes; Wuppukondur, Ananth; Al-Mohannadi, Hamad S.; Bashir, Khalid; Abdulla, Maryam; Giraldes, Eduardo W.; Heally, Sam; Mello, Eduardo; Mathew, Dinesh; Range, Pedro; Mohammed, Aboobacker V.; Vethamony, Ponnumony; Baldock, Tom... more authors ... less authors ( Elsevier , 2023 , Article)In this study, laboratory and in situ experiments were performed to assess the stability of the Mushroom Forest Artificial Reef (MFAR) against the hydrodynamic forces of waves and currents and its functionality to avoid ... -
Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
Connor, Izumi; Al-Thani, Jassem A.; Yigiterhan, Oguz; Al-Ansari, Ebrahim Mohd A.S.; Vethamony, Ponnumony; Sorino, Caesar Flonasca; Anderson, Daniel B.; Murray, James W.... more authors ... less authors ( Elsevier , 2022 , Article)Dissolved inorganic carbon (DIC) and total alkalinity (TA) were sampled in December 2018 and May 2019 in the Exclusive Economic Zone (EEZ) of Qatar in the Arabian Gulf. pCO2, pH and CO32− were calculated from DIC and TA. ... -
Factors influencing the vertical distribution of microplastics in the beach sediments around the Ras Rakan Island, Qatar
Veerasingam, Subramanian; Vethamony, Ponnumony; Aboobacker, Valliyil Mohammed; Giraldes, Amanda Engmann; Dib, Samah; Al-Khayat, Jassim A... more authors ... less authors ( Springer , 2021 , Article)Microplastic (MP) pollution is an emerging environmental problem, particularly in the marine environment, and nations are concerned about this issue. In this study, an attempt has been made to investigate the vertical ... -
Field and laboratory investigation of tarmat deposits found on Ras Rakan Island and northern beaches of Qatar
Arekhi, Marieh; Terry, Leigh G.; John, Gerald F.; Al-Khayat, Jassim A.; Castillo, Azenith B.; Vethamony, Ponnumony; Clement, T. Prabhakar... more authors ... less authors ( Elsevier , 2020 , Article)© 2018 Elsevier B.V. Beaches of Ras Rakan Island, located off the northern tip of Qatar, are extensively contaminated by highly weathered tarmat deposits. The focus of this study is to determine the possible source of the ... -
History of a disaster: A baseline assessment of the Wakashio oil spill on the coast of Mauritius, Indian Ocean
Rajendran, Sankaran; Aboobacker, V. M.; Seegobin, Vashist O.; Al Khayat, Jassim A.; Rangel-Buitrago, Nelson; Al-Kuwari, Hamad Al Saad; Sadooni, Fadhil N.; Vethamony, Ponnumony... more authors ... less authors ( Elsevier , 2022 , Article)Oil spills from tanker ships provide adverse and irreversible impacts of a pollutant over coastal and marine environments. Using Sentinel-1 and 2 satellite images, this baseline paper presents the detection, assessment, ... -
Long-term assessment of onshore and offshore wind energy potentials of Qatar
Aboobacker, Valliyil Mohammed; Shanas, Puthuveetil Razak; Veerasingam, Subramanian; Al-Ansari, Ebrahim M.A.S.; Sadooni, Fadhil N.; Vethamony, Ponnumony... more authors ... less authors ( MDPI AG , 2021 , Article)Exploitation of conventional energy resources has caused a deliberate increase in the emitted carbon in the atmosphere, which catalyzes global warming trends. This is a matter of concern, especially in Qatar, where fossil ... -
Monitoring oil spill in Norilsk, Russia using satellite data.
Rajendran, Sankaran; Sadooni, Fadhil N; Al-Kuwari, Hamad Al-Saad; Oleg, Anisimov; Govil, Himanshu; Nasir, Sobhi; Vethamony, Ponnumony... more authors ... less authors ( Nature Research , 2021 , Article)This paper studies the oil spill, which occurred in the Norilsk and Taimyr region of Russia due to the collapse of the fuel tank at the power station on May 29, 2020. We monitored the snow, ice, water, vegetation and wetland ... -
A multiscale ocean modelling system for the central Arabian/Persian Gulf: From regional to structure scale circulation patterns
Emmanuel, Hanert; Mohammed, Aboobacker Valliyil; Veerasingam, Subramanian; Dobbelaere, Thomas; Vallaeys, Valentin; Vethamony, Ponnumony... more authors ... less authors ( Elsevier , 2023 , Article)The Arabian/Persian Gulf (hereafter, the “Gulf”) is one the busiest and fastest changing sea in the World. Its circulation is primarily driven by the surface water inflow from the Sea of Oman and density-driven and wind-driven ... -
Ocean Acidification and Carbonate System Geochemistry in the Arabian Gulf
Al-Thani, Jassem A.; Izumi, Connor; Yigiterhan, Oguz; Al-Ansari, Ebrahim Mohd A S; Vethamony, Ponnumony; Sorino, Caesar Flonasca; Anderson, Dan; Murray, James W.... more authors ... less authors ( Qatar University Press , 2020 , Poster)Alkalinity (Alk) and (Dissolved Inorganic Carbon) DIC were measured on high resolution seawater samples, collected on November 2018 and May 2019 at seven stations in the Exclusive Economic Zone (EEZ) of Qatar. Calculated ... -
Sentinel-2 image transformation methods for mapping oil spill – A case study with Wakashio oil spill in the Indian Ocean, off Mauritius
Rajendran, Sankaran; Vethamony, Ponnumony; Sadooni, Fadhil N.; Al-Kuwari, Hamad Al Saad; Al-Khayat, Jassim A.; Govil, Himanshu; Nasir, Sobhi... more authors ... less authors ( Elsevier B.V. , 2021 , Article)Although several indices have been constructed and available at the Index database (IDB) for Sentinel-2 satellite to map and study several earth resources, no indices have been developed to map oil spill. We constructed ... -
Spatial variability of summer hydrography in the central Arabian Gulf
Ali Elobaid, Elnaiem; M.A.S. Al-Ansari, Ebrahim; Yigiterhan, Oguz; Mohammed Aboobacker, Valliyil; Vethamony, Ponnumony ( Elsevier , 2021 , Article)The Arabian Gulf is a very significant ocean body, which hosts more than 55% of the oil reserves of the world and produces about 30% of the total production, and thus, it is likely to face high risk and adverse problems ... -
Target gastropods for standardizing the monitoring of tar mat contamination in the Arabian Gulf
Bruno Welter, Giraldes; Al-Thani, Jassem Abdulaziz K.H.; Dib, Samah; Engmann, Amanda; Alsaadi, Hamood Abdulla; Vethamony, Ponnumony; Alatalo, Juha Mikael; Yigiterhan, Oguz... more authors ... less authors ( Elsevier , 2022 , Article)This study proposes a standardization process for the monitoring the level of tar mat contamination in the Arabian Gulf. In the study, we selected target gastropod species and evaluated the ecological and ecotoxicological ...