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107 articles for “seasonal variation”
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Seasonal Variations in the Limnochemical Characteristics of An Ox-bow Lake of Eastern Himalayan River of Assam, India
Abstract: The present study was carried out to assess the physicochemical properties of Kalpani beel an ox-bow lake formed by the River Manas, a tributary originated in Bhutan of Eastern Himalayan Biodiversity hotspot. The study was conducted at four selected sites namely i.e. Monakocha (Station-1), Goraimari (Station-2), Bishpani (Station-3) and Bedlangkhaiti (Station-4). Twelve parameters were monitored for a period of one year to assess the standard of water quality of this …
Published in Research & Reviews : Journal of Ecology · Vol. 6, Issue 3, 2017 · pp. 11–18 Read article
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Seasonal variation of the physicochemical quality of water of selected habitats of Khijadiya Bird Sanctuary, Gujarat, India
Abstract: AbstractKhijadiya Bird Sanctuary is a well-known wetland in Jamnagar district of Gujarat, India, recognised for its rich avifaunal and aquatic biodiversity. The sanctuary is one of its kind exhibiting a mosaic of unique habitats with fresh water on one side and salt pans on other side. As the wetland type and morphology are highly variable documentation of such wetlands are essential. There have been only a few studies on seasonal …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 10, Issue 1, 2020 Read article
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Observed Seasonal Variation Of Wave Power From Moored Buoy Measurements - A Case Study On The East Coast of India
Abstract: The wave climate in Indian waters is strongly influenced by the seasonal variation. Accurate wave height assessment is crucial for wave power computation which is proportional to square of the significant wave height. Any error in wave height is magnified in the wave power estimation. Wave models tend to predict medium range wave activity to a desired degree. Insufficient wind, bathymetry and grid resolutions, model physics parameterizations also account for …
Published in Journal of Offshore Structure and Technology · Vol. 10, Issue 1, 2023 · pp. 28–34 Read article
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Seasonal Variation and Regional Abundance of Wetland Avian Fauna of Urinji Kulam Pond in Thiruthangal, Viruthunagar District
Abstract: Wetlands are plays a vital role in the ecosystem. It provides good shelter for many animals such as, birds, mammals, fishes, insects, etc. It is also maintaining the biodiversity of flora and fauna. Birds are the most important indicators of the ecosystem. Hence, the present study has been carried out to assess the wetland birds in Thiruthangal from July 2012 to June 2013. During the study period 32 species of …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 4, Issue 2, 2014 · pp. 21–24 Read article
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Analysis on Water Quality of Cauvery and Bhavani River for its Seasonal Variation at Bhavani
Abstract: Abstract Cauvery river is one of the significant sources of water supply for domestic, agricultural and industrial usage in Tamil Nadu. In spite of large scale utilization of the river water, poor water management has resulted in large scale degradation of the quality of water. Hence, a detailed study has been attempted in the Cauvery river, and one of its major tributary Bhavani river between the latitude 11°26′4.51″N to 11°28′39.09″N …
Published in Journal of Water Pollution & Purification Research · Vol. 3, Issue 2, 2016 · pp. 24–29 Read article
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Influence of Meteorological Parameters on Seasonal Ozone Variation over a Low Latitude Region of Rajasthan
Abstract: The seasonal variation of total column ozone (TCO) in Ajmer, Rajasthan, India, from 2005 to 2023 using meteorological parameters such earth skin temperature (TS) and relative humidity at 2m depth (RH2m) is investigated in this study. This is satellite and instrument-based data taken from GIOVANNI. For the investigation the data is averaged annually and then grouped into four seasons: winter, pre-monsoon, monsoon, and post-monsoon. There is notable seasonal variation in …
Published in International Journal of Atmosphere · Vol. 3, Issue 2, 2026 · pp. 55–63 Read article
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Seasonal Variation in the Weibull Parameters from In Situ Measurements and Model: A Case Study in the Bay of Bengal
Abstract: Seasonal variation of wind speed (U10) and its distribution are essential for the design of wind energy converters (WEC). In this study, year-round wind speed observations from a deepwater moored buoy at a location in the Bay of Bengal are used to assess the potential for wind power generation and are used to validate the ERA5 model. Model-U10 distribution is confined to low wind speeds with high occurrence in the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 15, Issue 1, 2024 · pp. 30–40 Read article
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Seasonal Variations of Air Quality Measures In Owerri Metropolis and Isiala Mbano, Nigeria Using MATLAB Model.
Abstract: This study reports the investigation of seasonal variation of air quality measures in Owerri Metropolis and Isiala Mbano L.G.A in Imo State. Parameters such as NO2, CO, Cl, SO2 and TPM were monitored in air samples during the dry and rainy seasons using a portable gas analyzer and particulate matter analyzer for the gases and TPM respectively. Water samples were collected from open air and were analyzed for heavy metals …
Published in Journal of Water Pollution & Purification Research · Vol. 10, Issue 2, 2023 · pp. 15–80 Read article
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Seasonal Variation of VLF Radio wave Signal Strength at 19.8 KHz Received at Khatav India (16o46ʹN, 75o53ʹE)
Abstract: This research is a detailed study of the seasonal behavior of the VLF field strength of the waves transmitted by VLF station NWC Australia (19.8 kHz). This research was carried out by using the VLF Field Strength Monitoring System located at Khatav, India (16°46ʹN, 75°53ʹE) during the period of August 2009 to July 2010. This study explores how the ionosphere and VLF radio waves react to the solar radiation. In …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 14, Issue 3, 2025 · pp. 1–9 Read article
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Seasonal Variation in the Phytochemical Constituents of Two Ajuga Species
Abstract: Medicinal plants are the natural repositories of secondary metabolites that can be used for therapeutic purposes. The content of these secondary metabolites or phytochemical constituents varies at different growing seasons of the plants. The phytochemical constituents of Ajuga bracteosa and Ajuga parviflora varied significantly in their proportion at different stages of development and among different populations. The content of phenols and flavonoids was found to be maximum at the flowering …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 6, Issue 3, 2017 · pp. 25–31 Read article
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Studies on the Seasonal Variations and Microhabitat Utilization of Anuran Population in Agroecosystems of Tranquebar Taluk Nagapattinam district, Tamil Nadu, India
Abstract: Habitat loss and fragmentation are among the largest threats to amphibian populations. In the present study, we intended to explore the amphibian population density (diversity) in three different seasons (Thaladi, Kuruvai and Samba) at five different habitats (Cultivable, Non-cultivable, Pond, Dry pond, and Grassland) in Cauvery delta region during the period 2016 to 2017. The Visual Encounter Survey Method (VES) was adopted in this study and amphibians were recorded in …
Published in Research & Reviews : Journal of Ecology · Vol. 7, Issue 3, 2018 · pp. 1–7 Read article
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Assessment of Seasonal Variation in Water Quality at Important Coral and Mangrove Areas of Gulf of Kachchh, Gujarat
Abstract: AbstractThe present study was carried out to assess the physico-chemical characteristics of water in the regions of coral reef and mangrove in the Gulf of Kachchh during the period from November 2011 to December 2014. Surface water samples were collected from the selected sampling sites on monthly basis and analyzed to provide information regarding spatial and seasonal variation observed in different water quality parameters. The range of parameters was recorded …
Published in Research & Reviews : Journal of Ecology · Vol. 8, Issue 3, 2019 · pp. 32–43 Read article
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Study of Seasonal variation of Arsenic concentration in Ground water in Ghazipur district of Uttar Pradesh
Abstract: It was reported a clear temporal and seasonal variability of As concentrations in different water samples of Ghazipur district of eastern U. P. During post monsoon season As concentration decreases in Samples. A definite relationship exists between the behavior of arsenic and rainfall intensity. Groundwater quality depends on the composition of recharging water, the mineralogy and reactivity of the geological formations in aquifers, anthropogenic activities and environmental conditions that may …
Published in Journal of Water Pollution & Purification Research · Vol. 7, Issue 1, 2020 · pp. 31–37 Read article
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Seasonal Variations of Air Quality Measures In Warri and Effurun, Delta State, Nigeria.
Abstract: Air quality in Urban Cities like Warri and Effurun has been deteriorating over time. The distribution levels of air pollutants in the Warri and Effurun environments may be related to both natural and man-made factors. In addition to evaluating the quality of rainwater with regard to pH, heavy metals (Fe, Pb, Cd, As, Hg, CU, Zn), and some anions (Cl-, NO3-, SO42-, CO32-), this project study aims to investigate, using …
Published in International Journal of Pollution: Prevention & Control · Vol. 2, Issue 1, 2024 · pp. 23–48 Read article
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Seasonal Variation of Electric Vehicles Autonomy: Application to AC/DC Dual Voltage Operation
Abstract: In this work, a study to predict battery performance and autonomy for a dual type of electric engine, 480 VAC and 360 VDC, has been developed. The study has been conducted in vehicles of mass between 1000 and 3000 kg with battery capacity in the range of 40 to 100 kWh. The process has been simulated using reference values and modeled for specific driving conditions. The simulation has been developed …
Published in Journal of Mechatronics and Automation · Vol. 7, Issue 3, 2020 · pp. 1–15 Read article
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A Remote Sensing Approach for Monitoring Seasonal Variations in the Water Quality of Lake Guaiba, Southern Brazil
Abstract: Freshwater resources in the tropics are subjected to high rate of pollution due to algal blooms during the summer and due to particulate and organic waste discharge from urban areas during spring. Landsat TM images were used to calculate biochemical oxygen demand and turbidity of Lake Guaiba in Southern Brazil during 2010–2011. The results obtained were compared with the values derived from a yearlong sampling data which were analyzed in …
Published in Recent Trends in Civil Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 1–10 Read article
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Study of Seasonal Variation in Physicochemical Parameters of Fresh Water Bodies of District Rajouri, Jammu and Kashmir
Abstract: Drinking water quality is of elemental importance to human physiology and the durability of humanity depends very much upon its capability. The present work is aimed to review the quality of spring’s water in the rural area in district Rajouri. The three springs are named as Gopishah Ki Bowli, Khark Bowli and Badi Bowli. This has been determined by collecting spring water samples and subjecting the samples to a comprehensive …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 3, 2019 · pp. 71–77 Read article
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Seasonal Changes and Human Health: A Unani Perspective
Abstract: Influence of seasonal variations on human health has been a subject of considerable interest in epidemiological studies and observed for centuries. The Unani scholars have given a vivid description about seasonal changes, diseases peculiar to each season and guidelines for maintaining health in a positive and individualized manner in different seasons under the heading of Tadabir-i-Mausam. In every season, air changes to a new temperament. The effect of the changing …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 1, Issue 1, 2014 Read article
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Seasonal Monitoring of Waterbirds of Khijadiya Wetland in Jamnagar District of Gujarat, India
Abstract: A study was conducted by Gujarat Ecological Education and Research (GEER) Foundation on waterbirds of Khijadiya Wetland from 2016 to 2018 covering all the major seasons. A total of 62 waterbird species were recorded that belonged to 16 families. Among all the families, maximum number (i.e., 13 species) of species belonged to the Anatidae family (i.e., the family of ducks, geese and swans) and Ardidae family (i.e., the family of …
Published in Research & Reviews : Journal of Ecology · Vol. 7, Issue 3, 2018 · pp. 16–22 Read article
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Variation in Ozone at Night in Barrow, Alaska, during Different seasons, and its Relationship to Methane at Different Pressures
Abstract: The study is focus on the investigation of the night-time seasonal variability of ozone (O₃) at Barrow, Alaska, and also it examines its association with methane (CH₄) concentrations at different pressure levels along with solar flux variations on the basis of eighteen years (2003–2020) of observational data, including ground-based ozone measurements, satellite-derived methane data at 100, 200, 300, 400, and 500 hPa, and solar flux (F10.7) values. For finding the …
Published in International Journal of Atmosphere · Vol. 3, Issue 1, 2026 · pp. 44–53 Read article