Suggested Topics within your search.
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- Atmospheric physics 3
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2721
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2723
Alkene Cleavage Catalysed by Heme and Nonheme Enzymes: Reaction Mechanisms and Biocatalytic Applications
Published 2012-01-01“…Conversely, heme and nonheme enzymes can catalyse the oxidative alkene cleavage at ambient temperature and atmospheric pressure in an aqueous buffer, showing excellent chemo- and regioselectivities in certain cases. …”
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2724
Study of the degree of defoliation of common oak (Quercus robur L.) in the conditions of the Main Botanical Garden named after N. V. Tsitsina RAS (Moscow)
Published 2024-12-01“…During the observation period (2016 - 2023), defoliation in oak was practically absent or was insignificant, therefore, it can be concluded that the Main Botanical Garden lacks severe atmospheric air pollution.…”
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2725
Wind Shear Target Echo Modeling and Simulation
Published 2015-01-01“…Wind shear is a dangerous atmospheric phenomenon in aviation. Wind shear is defined as a sudden change of speed or direction of the wind. …”
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2726
Analiza wpływu budowy i eksploatacji infrastruktury drogowej na czynniki abiotyczne i biotyczne środowiska
Published 2008-12-01“…The expansion of the road network in Poland and in world constitutes a considerable risk for the natural environment, this article is showing the most important effects of road investments, for example: pollutants of atmospheric air, the noise and vibrations, pollutants of waters and soils, the fragmentation of the space and the decline of the landscape. …”
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2727
Aerosols over the Foothills of the Eastern Himalayan Region during Post-monsoon and Winter Seasons
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2728
Variation Diagnosis of Maximum Precipitation in Jiangxi Province in 60 Years
Published 2022-01-01“…Hourly precipitation data of 91 meteorological stations in Jiangxi Province during 1954—2012 were selected to analyze the variation of maximum precipitation in consecutive 1 h,3 h,6 h,12 h and 24 h using hydrologic variation diagnostic system (HDMS) .Firstly,in the detailed diagnosis,linear trend,Kendall and Spearman methods were used for trend test,and M-K,cumulative anomaly,ordered clustering,sliding F,sliding rank sum and other test methods were adopted for jump diagnosis.Secondly,the efficiency coefficient R<sup>2</sup> was employed to determine the final diagnosis results and conduct the spatio-temporal analysis.Finally,the spatial characteristics of the occurrence frequency of maximum precipitation greater than or equal to 16 mm,30 mm and 50 mm were analyzed.The results show the followings:① The spatial distribution characteristics of maximum precipitation in Max1 h,Max3 h,Max6 h,Max12 h and Max24 h were similar in Jiangxi Province.With the increase in duration,most stations with variations witnessed a jumping increase.Those with significant variations were more in the northern plain than in the southern mountain area,namely that the spatial distribution was dense in the north and sparse in the south.② The degree of precipitation series variation was positively and negatively correlated with elevation in the southern mountain area and the northern plain area,respectively.Studies have shown that atmospheric circulation indexes AO (Arctic oscillation),NAO (North Atlantic oscillation) and PNA (Pacific-North American oscillation) had negative,positive and negative correlations with precipitation at stations in the study area,respectively.Therefore,the atmospheric circulation indexes have correlations with the change of precipitation series in Jiangxi Province,which are one of the causes of the maximum precipitation variation in the period.③ The frequency of regional rainstorms gradually decreased with the increase in duration,and rainstorm events in the northern plain area were less than those in other mountain areas due to the influence of topographic factors.Through the analysis of hourly precipitation data of many years in Jiangxi Province,this paper is expected to provide some reference for short-term rainstorm forecast and flood warning.…”
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2729
ML-AMPSIT: Machine Learning-based Automated Multi-method Parameter Sensitivity and Importance analysis Tool
Published 2025-01-01“…<p>The accurate calibration of parameters in atmospheric and Earth system models is crucial for improving their performance but remains a challenge due to their inherent complexity, which is reflected in input–output relationships often characterised by multiple interactions between the parameters, thus hindering the use of simple sensitivity analysis methods. …”
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2730
Sources and Radiative Impact of Carbonaceous Aerosols Using Four Years Ground-Based Measurements over the Central Himalayas
Published 2023-07-01“…The estimated daily radiative forcing shows that eBCff contributes more (16.4%) atmospheric forcing than eBCbb. Atmospheric forcing from both eBCff and eBCbb are higher (19.8 and 13.0 W m−2, respectively) in the afternoon than morning. …”
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2731
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2732
HiQ-FPAR: A High-Quality and Value-added MODIS Global FPAR Product from 2000 to 2023
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2733
Chemical Fingerprints and Source Profiles of PM10 and PM2.5 from Agricultural Soil in a Typical Polluted Region of Northwest China
Published 2023-03-01“…Abstract Analysis of the chemical source profiles of agricultural soil dust (SD) can help accurately assess and apportion the contribution of agricultural sources to atmospheric particulate matter (PM). This study quantitatively analysed twenty-four elements, eight water-soluble ions, organic carbon (OC) and elemental carbon (EC) in PM10 and PM2.5 samples from agricultural resuspended SD to understand the chemical profiles of agricultural SD in Baoji city, Northwest China. …”
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2734
Hominin presence in Eurasia by at least 1.95 million years ago
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2735
Analyzing the observational capabilities of a Moon-based platform for monitoring Earth’s outgoing radiation
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2736
Wildflower pollen quality in roadside habitats, with particular emphasis on Hedera helix
Published 2021-09-01“…It is widely acknowledged that atmospheric pollutants negatively impact human health; the same is also true for the health of wildlife and plants exposed to these pollutants (Brunekreef & Holgate, 2002; EEA, 2019; Schiavoni, et al., 2017). …”
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2737
Spatiotemporal Distributions of Ambient Volatile Organic Compounds in China: Characteristics and Sources
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2738
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2739
Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden
Published 2024-12-01“…Though new insights into the complex lake mixing and ice phenology are provided, it remains to attribute the characteristics of Darfáljávri’s winter stratification to additional potential drivers, such as lake ice thickness, atmospheric heat fluxes, and the water balance of the lake.…”
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2740
A framework for modeling carbon loss from rivers following terrestrial enhanced weathering
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