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Application of One-Dimensional Hydrodynamic Model in Water Storage at the End of Flood Seasons for Changzhou Reservoir
Published 2022-01-01“…Scientific selection of the timing and time for pre-discharge is one of the key techniques and decision bases necessary for conducting reservoir pre-storage at the end of flood seasons.For channel reservoirs,the water level decline in the reservoir area usually lags behind that at the dam sites,which must be fully considered to avoid the submerging loss of the reservoir area and the increase in flood risks for downstream areas due to untimely pre-discharge.In this research,with the mainstream of Xijiang River,Changzhou hydro-junction,as the research object,a one-dimensional hydrodynamic model is built on the basis of the measured data of river sections in the Changzhou reservoir area to study the effects of water storage at the end of flood seasons.The model parameters are calibrated and validated using observed flood data.The results reveal that pre-discharge should be executed for the Changzhou reservoir to the water level of 18.6 m when the inflow forecast within 3 d exceeds 11 800 m<sup>3</sup>/s,and a rising water regime is expected.It takes 2.6 d,3.2 d,and 3.7 d for the pool level to be lowered to 18.6 m from 19.6 m,20.1 m,and 20.6 m,respectively,which is about 1.3~2.3 d earlier than the time needed for the reservoir water level to lower to the corresponding water levels.The study provides a useful technical reference for the optimization of water storage at the end of flood seasons in the Changzhou hydro-junction and also lays a scientific foundation for determining the pre-discharge timing and time of channel reservoirs.…”
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442
Impact of Tropical Storm Bopha on the Intensity Change of Super Typhoon Saomai in the 2006 Typhoon Season
Published 2013-01-01Get full text
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443
Coarse-scale vertical distribution of pelagic amphipods in two contrasting seasons of the southern Gulf of Mexico
Published 2025-02-01“…Seasonally, the summer was more diverse, while in the vertical plane, the mesopelagic zone was more diverse than the epipelagic one. …”
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Short-term photovoltaic power prediction combination model considering seasonal characteristic and data window
Published 2025-01-01Subjects: Get full text
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445
Impact of the Westerly Jet on Rainfall/Runoff in the Source Region of the Yangtze River during the Flood Season
Published 2020-01-01“…The runoff in the SRYR during the flood season is most closely related to 15-day (June 16 to September 15) antecedent rainfall in the coastal zone of the SRYR. …”
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446
The Effect of Season and Meteorological Conditions on Parasite Infection in Farm-Maintained Mouflons (Ovis aries Musimon)
Published 2022-01-01“…The aim of the present study was to determine the influence of season and meteorological conditions (temperature and humidity) on the species composition and dynamics of parasitic infections in farmed mouflons. …”
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Changes in the standard freezing depth of seasonally frozen ground in China over the last 50 years
Published 2024-12-01Subjects: Get full text
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449
Observed upper-ocean structure and seasonal production in the southern Kerguelen Plateau region, 1994-2021
Published 2025-01-01Subjects: Get full text
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450
SEASONAL MONITORING OF THE INVASIVE SPECIES HALYOMORPHA HALYS Stal. ON DECORATIVE PLANTS IN THE CONDITIONS OF THE REPUBLIC OF MOLDOVA
Published 2025-01-01“…This study conducted seasonal monitoring of Halyomorpha halys on ornamental plants, focusing on visual inspections of plants such as lilac (Syringa spp.) and ailanthus (Ailanthus altissima Mill.), which are potential hosts for this species. …”
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451
Solar radiation estimation in West Africa: impact of dust conditions during the 2021 dry season
Published 2025-01-01“…The research focuses on a case study of a dust event in March 2021, which is characteristic of the dry season in West Africa. Significant desert aerosol emissions at the Bodélé Depression are associated with a Harmattan flow that transports the plume westwards. …”
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El tiempo vuela: el uso de aves y otros animales para representar las unidades de tiempo de la cuenta larga maya
Published 2017-12-01Subjects: Get full text
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454
Vertisols infiltration rate and model performance evaluation of various land-use conditions during Southern Ethiopia's dry season
Published 2022-06-01Subjects: “…Infiltration, Infiltration rate, Infiltration models, Soil condition, Dry season…”
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Nomenclatural standards for the spring oat cultivars (<i>Avena sativa</i> L.) developed in the Urals and Siberia
Published 2025-01-01Subjects: “…mid-season oats…”
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457
Key to the Most Common Species of Thrips Found in Early-Season Blueberry Fields in Florida and Southern Georgia
Published 2006-11-01“…Liburd, provides a dichotomous key to aid in the identification of these important early-season blueberry pests. It incorporates hand-drawn illustrations for specific morphological features to facilitate recognition. …”
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Seasonal Variations in the Structure and Function of the Gut Flora in Adult Male Rhesus Macaques Reared in Outdoor Colonies
Published 2025-01-01Subjects: Get full text
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459
The impact of school closures on pandemic influenza:Assessing potential repercussions using a seasonal SIR model
Published 2012-02-01“…When a new pandemic influenza strain has been identified, mass-production of vaccines can take several months, andantiviral drugs are expensive and usually in short supply.Social distancing measures, such as school closures, thus seem an attractive means to mitigate disease spread.However, the transmission of influenza is seasonal in nature, and as has been noted in previousstudies,a decrease in the average transmission rate in a seasonal disease modelmay result in a larger final size.In the studies presented here,we analyze a hypothetical pandemic using a SIR epidemic model with time- and age-dependent transmissionrates; using this model weassess and quantify, for the first time, thethe effect of the timing and length of widespread school closures oninfluenza pandemic final size and average peak time.…”
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Frequency anomalies and characteristics of extratropical cyclones during extremely wet, dry, windy, and calm seasons in the extratropics
Published 2025-01-01“…<p>Extreme meteorological seasons are highly relevant because of their severe impacts on many socioeconomic sectors. …”
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