Subjects -> BIOLOGY (Total: 3492 journals)
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BIOLOGY (1675 journals)            First | 1 2 3 4 5 6 7 8 | Last

Showing 801 - 1000 of 1720 Journals sorted alphabetically
International Journal of Peptide Research and Therapeutics     Partially Free   (Followers: 6)
International Journal of Peptides     Open Access   (Followers: 2)
International Journal of Pharmaceutical and Life Sciences     Open Access   (Followers: 5)
International Journal of Phytopathology     Open Access   (Followers: 5)
International Journal of Phytoremediation     Hybrid Journal   (Followers: 1)
International Journal of Plant Genomics     Open Access   (Followers: 4)
International Journal of Plant Research     Open Access   (Followers: 3)
International Journal of Primatology     Hybrid Journal   (Followers: 7)
International Journal of Reproductive BioMedicine     Open Access   (Followers: 1)
International Journal of Scientific Reports     Open Access   (Followers: 4)
International Journal of Secondary Metabolite     Open Access   (Followers: 2)
International Journal of Signs and Semiotic Systems     Full-text available via subscription  
International Journal of Speleology     Open Access   (Followers: 3)
International Journal of Systems Biology and Biomedical Technologies     Full-text available via subscription   (Followers: 3)
International Journal of Tropical Insect Science     Hybrid Journal   (Followers: 1)
International Journal of Tryptophan Research     Open Access  
International Letters of Natural Sciences     Open Access   (Followers: 2)
International Multidisciplinary Research Journal     Open Access  
International Review of Cell and Molecular Biology     Full-text available via subscription   (Followers: 7)
International Review of Hydrobiology     Hybrid Journal   (Followers: 2)
Intervirology     Full-text available via subscription  
IntraVital     Full-text available via subscription  
Invertebrate Biology     Hybrid Journal   (Followers: 10)
Invertebrate Neuroscience     Hybrid Journal   (Followers: 4)
Invertebrate Systematics     Hybrid Journal   (Followers: 8)
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Iranian Journal of Parasitology     Open Access   (Followers: 2)
IRBM     Full-text available via subscription  
IRBM News     Full-text available via subscription  
iScience     Open Access  
Islets     Full-text available via subscription   (Followers: 1)
Israel Journal of Ecology and Evolution     Full-text available via subscription   (Followers: 1)
Istituto Lombardo - Accademia di Scienze e Lettere - Incontri di Studio     Open Access  
Italian Journal of Mycology     Open Access  
ITBM-RBM     Full-text available via subscription   (Followers: 1)
ITBM-RBM News     Full-text available via subscription   (Followers: 1)
IUBMB Life     Hybrid Journal   (Followers: 6)
IUFS Journal of Biology     Open Access  
Izvestiya, Atmospheric and Oceanic Physics     Full-text available via subscription   (Followers: 1)
Izvestiya, Physics of the Solid Earth     Hybrid Journal   (Followers: 2)
Jahangirnagar University Journal of Biological Sciences     Open Access   (Followers: 1)
Japanese Journal of Applied Physics     Full-text available via subscription   (Followers: 6)
JCI Insight     Open Access   (Followers: 3)
JDREAM : Journal of interDisciplinary REsearch Applied to Medicine     Open Access  
JETP Letters     Hybrid Journal   (Followers: 3)
JKI Datenblätter : Pflanzenkrankheiten und Diagnose     Open Access   (Followers: 2)
Jornal Interdisciplinar de Biociências     Open Access  
Journal Biastatistics : Biomedics, Industry & Business And Social Statistics     Open Access  
Journal of Bacteriology & Parasitology     Open Access   (Followers: 5)
Journal of Bioanalysis & Biomedicine     Open Access   (Followers: 1)
Journal of Bioequivalence & Bioavailability     Open Access  
Journal of Bioremediation & Biodegradation     Open Access   (Followers: 4)
Journal of Computer Science & Systems Biology     Open Access   (Followers: 5)
Journal of Proteomics & Bioinformatics     Open Access   (Followers: 10)
Journal of Advanced Laboratory Research in Biology     Open Access   (Followers: 1)
Journal of Advances in Biology     Open Access   (Followers: 5)
Journal of Advances in Biology & Biotechnology     Open Access   (Followers: 1)
Journal of Agricultural, Biological & Environmental Statistics     Hybrid Journal   (Followers: 11)
Journal of Al-Qadisiyah for Pure Science     Open Access   (Followers: 1)
Journal of Amino Acids     Open Access   (Followers: 4)
Journal of Anatomy     Hybrid Journal   (Followers: 7)
Journal of AOAC International     Full-text available via subscription   (Followers: 8)
Journal of Applied Biobehavioral Research     Hybrid Journal  
Journal of Applied Bioinformatics & Computational Biology     Hybrid Journal   (Followers: 5)
Journal of Applied Biological Sciences     Open Access   (Followers: 2)
Journal of Applied Biosciences     Open Access   (Followers: 2)
Journal of Applied Ichthyology     Hybrid Journal   (Followers: 6)
Journal of Applied Life Sciences International     Open Access   (Followers: 1)
Journal of Applied Phycology     Hybrid Journal   (Followers: 10)
Journal of Applied Virology     Open Access   (Followers: 5)
Journal of Aquatic Sciences     Full-text available via subscription   (Followers: 3)
Journal of Arachnology     Full-text available via subscription  
Journal of Asia-Pacific Biodiversity     Open Access  
Journal of Astrobiology & Outreach     Open Access   (Followers: 3)
Journal of Avian Biology     Hybrid Journal   (Followers: 24)
Journal of Basic Microbiology     Hybrid Journal   (Followers: 3)
Journal of Bio-Science     Open Access   (Followers: 3)
Journal of Bio-X Research     Open Access   (Followers: 1)
Journal of Biobased Materials and Bioenergy     Full-text available via subscription  
Journal of Biocommunication     Open Access   (Followers: 2)
Journal of Biodiversity Management & Forestry     Hybrid Journal   (Followers: 6)
Journal of Bioenergetics and Biomembranes     Hybrid Journal   (Followers: 1)
Journal of Biogeography     Hybrid Journal   (Followers: 45)
Journal of Bioinformatics and Computational Biology     Hybrid Journal   (Followers: 19)
Journal of Bioinformatics and Intelligent Control     Full-text available via subscription   (Followers: 2)
Journal of Bioinformatics and Sequence Analysis     Open Access   (Followers: 1)
Journal of Biological Control     Hybrid Journal   (Followers: 2)
Journal of Biological Dynamics     Open Access   (Followers: 1)
Journal of Biological Education     Hybrid Journal   (Followers: 2)
Journal of Biological Engineering     Open Access   (Followers: 3)
Journal of Biological Methods     Open Access  
Journal of Biological Physics     Hybrid Journal   (Followers: 1)
Journal of Biological Research - Thessaloniki     Open Access  
Journal of Biological Sciences     Open Access   (Followers: 5)
Journal of Biological Systems     Hybrid Journal   (Followers: 2)
Journal of Biology and Life Science     Open Access   (Followers: 2)
Journal of Biology, Agriculture and Healthcare     Open Access   (Followers: 11)
Journal of Biomechanics     Hybrid Journal   (Followers: 42)
Journal of Biomedical Education     Open Access   (Followers: 2)
Journal of Biomedical Informatics     Partially Free   (Followers: 16)
Journal of Biomedical Informatics : X     Open Access  
Journal of Biomedical Materials Research Part A     Hybrid Journal   (Followers: 3)
Journal of Biomedical Materials Research Part B : Applied Biomaterials     Hybrid Journal   (Followers: 2)
Journal of Biomedical Nanotechnology     Full-text available via subscription   (Followers: 3)
Journal of Biomedical Physics and Engineering     Open Access  
Journal of Biomedical Science and Engineering     Open Access   (Followers: 2)
Journal of Bionic Engineering     Hybrid Journal  
Journal of Bioresource Management     Open Access  
Journal of Biorheology     Hybrid Journal  
Journal of Biosafety and Biosecurity     Open Access  
Journal of Bioscience and Bioengineering     Full-text available via subscription   (Followers: 31)
Journal of Biosciences and Medicines     Open Access   (Followers: 3)
Journal of Biosocial Science     Hybrid Journal   (Followers: 5)
Journal of Bryology     Hybrid Journal   (Followers: 7)
Journal of Cell Biology     Full-text available via subscription   (Followers: 49)
Journal of Cell Communication and Signaling     Hybrid Journal  
Journal of Cell Death     Open Access   (Followers: 2)
Journal of Cell Science     Full-text available via subscription   (Followers: 18)
Journal of Cellular Biochemistry     Hybrid Journal   (Followers: 4)
Journal of Cellular Physiology     Hybrid Journal   (Followers: 7)
Journal of Cerebral Blood Flow & Metabolism     Hybrid Journal   (Followers: 2)
Journal of Chromatography B     Hybrid Journal   (Followers: 35)
Journal of Clinical Bioinformatics     Open Access   (Followers: 5)
Journal of Clinical Toxicology     Open Access   (Followers: 6)
Journal of Communications Technology and Electronics     Hybrid Journal   (Followers: 2)
Journal of Contemporary Physics (Armenian Academy of Sciences)     Hybrid Journal   (Followers: 10)
Journal of Crustacean Biology     Hybrid Journal   (Followers: 3)
Journal of Developmental Biology     Open Access   (Followers: 2)
Journal of Ecology and The Natural Environment     Open Access   (Followers: 4)
Journal of Education, Health and Sport     Open Access   (Followers: 4)
Journal of Electrical Bioimpedance     Open Access   (Followers: 2)
Journal of Electromyography and Kinesiology     Hybrid Journal   (Followers: 5)
Journal of Environment and Ecology     Open Access   (Followers: 10)
Journal of Environment and Sociobiology     Hybrid Journal   (Followers: 1)
Journal of Environmental Analysis and Progress     Open Access  
Journal of Environmental Radioactivity     Hybrid Journal   (Followers: 3)
Journal of Environmental Science and Natural Resources     Open Access   (Followers: 4)
Journal of Ethnobiology     Full-text available via subscription   (Followers: 4)
Journal of Ethnobiology and Ethnomedicine     Open Access  
Journal of Ethology     Hybrid Journal   (Followers: 3)
Journal of Evolutionary Biology     Hybrid Journal   (Followers: 26)
Journal of Evolutionary Biology Research     Open Access  
Journal of Experimental and Clinical Anatomy     Open Access   (Followers: 2)
Journal of Experimental Life Science     Open Access  
Journal of Experimental Marine Biology and Ecology     Hybrid Journal   (Followers: 41)
Journal of Fish Biology     Hybrid Journal   (Followers: 36)
Journal of Functional Biomaterials     Open Access   (Followers: 3)
Journal of Fungi     Open Access   (Followers: 3)
Journal of Genomics     Open Access   (Followers: 1)
Journal of Great Lakes Research     Hybrid Journal   (Followers: 7)
Journal of Green Science and Technology     Full-text available via subscription   (Followers: 2)
Journal of Health and Biological Sciences     Open Access   (Followers: 1)
Journal of Heredity     Hybrid Journal   (Followers: 4)
Journal of Huazhong University of Science and Technology [Medical Sciences]     Hybrid Journal  
Journal of Human Evolution     Hybrid Journal   (Followers: 18)
Journal of Hymenoptera Research     Open Access   (Followers: 3)
Journal of Ichthyology     Full-text available via subscription   (Followers: 3)
Journal of Insect Behavior     Hybrid Journal   (Followers: 7)
Journal of Insect Biodiversity     Open Access   (Followers: 4)
Journal of Insect Conservation     Hybrid Journal   (Followers: 11)
Journal of Institute of Science and Technology     Open Access  
Journal of Integrated OMICS     Open Access  
Journal of Integrated Pest Management     Open Access   (Followers: 3)
Journal of Integrative Environmental Sciences     Hybrid Journal   (Followers: 4)
Journal of Intelligent Transportation Systems: Technology, Planning, and Operations     Hybrid Journal   (Followers: 4)
Journal of Invertebrate Pathology     Hybrid Journal   (Followers: 3)
Journal of Kerbala University     Open Access   (Followers: 1)
Journal of Landscape Ecology     Open Access   (Followers: 20)
Journal of Law and the Biosciences     Open Access   (Followers: 5)
Journal of Leukocyte Biology     Open Access   (Followers: 2)
Journal of Life and Earth Science     Open Access  
Journal of Life Sciences Research     Open Access  
Journal of Lipid Research     Full-text available via subscription   (Followers: 6)
Journal of Lipids     Open Access  
Journal of Luminescence     Hybrid Journal   (Followers: 5)
Journal of Mammalian Evolution     Hybrid Journal   (Followers: 7)
Journal of Mammalian Ova Research     Full-text available via subscription  
Journal of Mammalogy     Full-text available via subscription   (Followers: 16)
Journal of Mammary Gland Biology and Neoplasia     Hybrid Journal   (Followers: 1)
Journal of Marine and Aquatic Sciences     Open Access   (Followers: 1)
Journal of Marine Sciences     Open Access   (Followers: 17)
Journal of Mathematical Biology     Hybrid Journal   (Followers: 8)
Journal of Mechanics in Medicine and Biology     Hybrid Journal  
Journal of Medical Primatology     Hybrid Journal   (Followers: 1)
Journal of Medical Toxicology     Hybrid Journal   (Followers: 6)
Journal of Medicinal Botany     Open Access  
Journal of Medicine and Philosophy     Hybrid Journal   (Followers: 8)
Journal of Melittology     Open Access   (Followers: 1)
Journal of Membrane Biology     Hybrid Journal   (Followers: 1)
Journal of Membrane Computing     Hybrid Journal  
Journal of Membrane Science     Hybrid Journal   (Followers: 25)
Journal of Metabolomics & Systems Biology     Open Access   (Followers: 2)
Journal of Molecular Biology     Hybrid Journal   (Followers: 45)
Journal of Molecular Biology Research     Open Access   (Followers: 3)
Journal of Molecular Catalysis B: Enzymatic     Hybrid Journal   (Followers: 1)
Journal of Molecular Cell Biology     Hybrid Journal   (Followers: 14)
Journal of Molecular Evolution     Hybrid Journal   (Followers: 6)
Journal of Molecular Signaling     Open Access  
Journal of Molecular Structure     Hybrid Journal   (Followers: 7)

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Izvestiya, Atmospheric and Oceanic Physics
Journal Prestige (SJR): 0.354
Citation Impact (citeScore): 1
Number of Followers: 1  
 
  Full-text available via subscription Subscription journal
ISSN (Print) 0001-4338 - ISSN (Online) 1555-628X
Published by Springer-Verlag Homepage  [2626 journals]
  • Mathematical Modeling of Climate, Dynamics Atmosphere and Ocean: to the
           
    • Abstract: Introductory article on the issue of the journal Izvestiya RAN, Atmospheric and Oceanic Physics, 2020, vol. 56, no. 3 dedicated to the 40th anniversary of the Marchuk Institute of Numerical Mathematics of the Russian Academy of Sciences (INM RAS) and the 95th anniversary of the birth of its founder—Ac-ademician G.I. Marchuk. The main features of the scientific-organizational and pedagogical activities of G.I. Marchuk, who had a significant impact on the development of modern geophysical fluid dynamics, physics of the atmosphere and ocean, and their reflection in the INM RAS research and development activities over a 40-year period.
      PubDate: 2020-05-01
       
  • Variational Data Assimilation in Problems of Modeling Hydrophysical Fields
           in Open Water Areas
    • Abstract: The formulation of boundary conditions at liquid (open) boundaries is a topical problem in mathematically modeling the hydrothermodynamics of open water areas. Variational data assimilation is one method allowing one to take into account liquid boundaries in models. According to the approach considered in this paper, observational data at a certain time are given and the problem is treated as an inverse one with open boundary flows as additional unknowns. This paper presents a formulation of the general problem of the variational assimilation of observational data for a model of the hydrothermodynamics of open water areas based on the splitting method. Algorithms for the variational assimilation of temperature and sea-level data at the liquid boundary are formulated and the results of numerical experiments on the use of the algorithms in the Baltic Sea circulation model are presented.
      PubDate: 2020-05-01
       
  • Numerical Modeling of Sea Waves
    • Abstract: The paper describes characteristics of numerical models of surface waves based on full equations for the flow with free surface in potential approximation, as well as their efficiency and applications. A more detailed description is given for the model using the surface following coordinate system. In such coordinate system Laplace equation for the potential transforms into a full elliptical equation that is solved as Poisson equations with iterations in the right-hand side. The method of solution based on separation into analytical solution and the deviation from it is offered. Such approach significantly accelerates the calculations. The problem on the whole is solved for the periodical in both horizontal directions Fourier domain using calculation of the nonlinear terms on a dense grid. The simulation of the wave field development under the action of wind and dissipation was carried out. It is demonstrated that transformation of the basic integral characteristics has a satisfactory agreement with the known data. All possible applications of the approach developed are described.
      PubDate: 2020-05-01
       
  • Connections between the Long-Period Variability Modes of Both Temperature
           and Depth of the Upper Mixed Layer of the North Atlantic and the Climate
           Variability Indices
    • Abstract: The interannual–multidecadal variability of the temperature and depth of the upper mixed layer (UML) in the North Atlantic (NA) is analyzed on the basis of the ORA-S3 ocean reanalysis data for 1959–2011. A large part of the UML in the NA is characterized by warming and thinning in all seasons in the period under study. After removing a linear trend, the UML temperature and depth anomalies in individual seasons are decomposed into empirical orthogonal functions (EOF). It is found that the three leading EOFs describe more than 50% of the total variability of the UML temperature and depth. The structure of the first EOF is horseshoe-shaped; this EOF represents coherent changes in the UML temperature and depth throughout the NA, which manifest themselves the year round. This mode corresponds to the Atlantic multidecadal oscillation. The spatial structure of the second EOF in the winter–spring period is a tripole and is caused by the North Atlantic Oscillation (NAO). The time coefficient of the second EOF of the UML temperature in the NA and the NAO index strongly correlate both synchronously and when the NAO index is 11 years ahead. The second EOF of the UML temperature in the summer–autumn period is associated with the Atlantic meridional mode. The third EOF is typical for the UML temperature fluctuations in January and corresponds to the East Atlantic Pattern.
      PubDate: 2020-05-01
       
  • Water Exchange between the Northern and Middle Caspian
    • Abstract: The Caspian Sea water dynamics on the boundary of its northern and central basins is considered. A high-resolution numerical model (with a grid step of ~2 km) has been used to reproduce the mesoscale structure of currents. The results of two experiments are presented: a realistic reconstruction of the sea circulation in 2003 and an idealized one with an artificial forcing. The realistic calculation considers the water exchange between the two basins, which occurs primarily due to coastal jet currents near Tyub-Karagan Peninsula in the east and near the Agrakhan Peninsula in the west. The formation and evolution of these currents under various synoptic situations are analyzed, and their flow rates are quantitatively estimated. The effect of contrasting water intrusions caused by these currents on the salinity field in both basins with highly different haline regimes is estimated. In particular, the western current (WC) is shown to increase the sea surface salinity (SSS) in the Northern Caspian and decrease its value in the Middle Caspian by almost 1–2 psu/year. The water exchange in the east is asymmetric: the northern current increases salinity in the northern basin by 2–3 psu/year, while the southern current decreases the average SSS in the central basin by only around 0.5 psu/year; in this case, the southern current occurs stably only in June and July. The idealized experiment simulates the Caspian water dynamics for winds of various points: from 0° to 350° with a step of 10°. The flow rates of both western and eastern currents have a sinusoidal dependence on the wind direction: their maxima are reached with winds of 40° and 220° points for the WC and with 120° and 300° points for the eastern current (EC). This study also analyzes the establishment of quasi-steady-state sea circulation at a constant wind.
      PubDate: 2020-05-01
       
  • Simulation of Possible Future Climate Changes in the 21st Century in the
           INM-CM5 Climate Model
    • Abstract: Climate changes in 2015–2100 have been simulated with the use of the INM-CM5 climate model following four scenarios: SSP1-2.6, SSP2-4.5, and SSP5-8.5 (single model runs) and SSP3-7.0 (an ensemble of five model runs). Changes in the global mean temperature and spatial distribution of temperature and precipitation are analyzed. The global warming predicted by the INM-CM5 model in the scenarios considered is smaller than that in other CMIP6 models. It is shown that the temperature in the hottest summer month can rise more quickly than the seasonal mean temperature in Russia. An analysis of a change in Arctic sea ice shows no complete Arctic summer ice melting in the 21st century under any model scenario. Changes in the meridional streamfunction in atmosphere and ocean are studied.
      PubDate: 2020-05-01
       
  • Numerical Simulation of Ocean Circulation with Ultrahigh Spatial
           Resolution
    • Abstract: This paper provides an overview of publications related to the study of submesoscale ocean variability. The significant progress achieved recently in understanding the special role of submesoscale processes in the formation of ocean circulation and ocean–atmosphere interaction, including modulation of the heat and gas exchange of the two media and their impact on the flux of biogenic elements into the top layer of the ocean, is emphasized. The necessity of conducting a study of submesoscale ocean variability in order to improve the quality of short-term marine forecasts is noted. Marine forecasts of the new level will be based on models with ultrahigh spatial resolution. The models will allow one to describe the reverse cascade of energy in the submesoscale range. In connection with the fact that new instruments capable of conducting 2–10 km surface observations of seas and oceans will be launched in the next five years, the possibilities of using the Black Sea as a testing area for the development of numerical models of circulation in a basin with a resolution of no less than a kilometer and improving methods of analysis and assimilation of observational technologies of the next generation are discussed.
      PubDate: 2020-05-01
       
  • Variability of Extra Tropical Atmospheric Circulation and Periodic
           Trajectories in Simplified Models of Atmospheric Dynamics
    • Abstract: The possibility for approximate basic statistical characteristics of atmospheric models using periodic trajectories (closed solutions of equations of dynamics) is considered. The possibility of this approximation is based on ideas of the theory of dynamical systems which states that, in some important particular cases (e.g., for hyperbolic systems), the periodic trajectories define the invariant system measure related to a notion of the system climate. It is shown that this approximation also is possible in the case of the atmospheric models under consideration. Moreover, the principal modes of circulation variability are implemented as clusters of periodic orbits oriented along the leading eigenvectors of dynamical operators of models linearized with respect to their mean states. The analysis of observational data shows that probably the same conclusion could also be made for the real atmospheric circulation.
      PubDate: 2020-05-01
       
  • Study of the Ocean Boundary Layer Convection under Inhomogeneous Ice with
           the Help of the Large-Eddy Simulation Model
    • Abstract: Upper ocean convection under narrow ice leads is considered and simulated. The effects associated with the localization of the buoyancy source and with the influence of the Coriolis force are discovered. An explanation is proposed for a mechanism that forms a stably salt-stratified isothermal layer during cold seasons at high latitudes. Observational data are qualitatively consistent with the simulation results. The existing parameterizations of under-ice convection in modern climate models are discussed and their possible defects are indicated.
      PubDate: 2020-05-01
       
  • Coupled Earth’s Thermosohere-Ionosphere Global Dynamics Model
    • Abstract: A coupled Earth’s thermosohere-ionosphere global dynamics model (for altitudes of 90–500 km) is presented. This model is based on a three-dimensional thermospheric general circulation model and a dynamical model of the ionospheric F-layer, which takes into account plasma-chemical processes, ambipolar diffusion, and advective ion transport due to neutral wind. General upper atmosphere characteristics have adequately been reproduced and the thermosphere–ionosphere interaction has quantitatively been estimated based on this coupled model. The sensitivity of thermospheric characteristics to ionospheric parameters and the sensitivity of the electron-concentration field distribution in the ionospheric F-layer to thermospheric parameters have been studied within a specified diurnal cycle.
      PubDate: 2020-05-01
       
  • Studies of Planetary Atmospheres in Russia (2015–2018)
    • Abstract: A review of the results of planetary atmospheres studies performed by Russian scientists in 2015–2018 prepared in the Commission on planetary atmospheres of the National Geophysical Committee for the National Report on Meteorology and Atmospheric Sciences to the XXVII General Assembly of the International Union of Geodesy and Geophysics (Montreal, June 8–18, 2019) is presented.
      PubDate: 2020-03-01
       
  • On the Mechanism of Arctic Climate Oscillation with a Period of About 15
           Years According to Data of the INM RAS Climate Model
    • Abstract: According to data from a preindustrial experiment, a mechanism of Arctic climate oscillation with a period of about 15 years in the INM-CM5 climate model is considered. For this purpose, a technique for computing the contribution of the different components to the generation of oscillation energy and phase variation is used. It is shown that, in the positive phase of an oscillation (the warm Arctic), a negative anomaly of the temperature and salinity occurs at middle latitudes of the North Atlantic. These anomalies are accompanied by a positive North Atlantic Oscillation index. A quarter of the period after Arctic warming, warming and salinization occur at middle latitudes of the North Atlantic. In the Arctic Ocean, the temperature anomalies are generated due to the intensifying advection of the Atlantic water. The evolution of the oscillation phase is accounted for by the heat transport from the Atlantic and the heat flux across the surface. Anomalies of the currents transporting the heat from the Atlantic to the Arctic Ocean are generated mainly by surface wind stress.
      PubDate: 2020-03-01
       
  • Influence of Aerosol Particle Parameters on Their Scavenging from the
           Atmosphere by Raindrops
    • Abstract: A microphysical model has been proposed to assess the scavenging of artificial aerosol particles from the atmosphere by raindrops, where the raindrops are regarded as a highly rarefied filtering medium. The effect of aerodynamic parameters of aerosol particles on the efficiency of their capture by raindrops E and on the scavenging coefficient Λ has been numerically investigated for different precipitation rates I. A new formula has been proposed to evaluate the efficiency of aerosol capture by the raindrops. This model has been compared with other well-known models. The proposed model has been found to describe the interaction between aerosol particles and raindrops more strictly than the microphysical models considered in this study.
      PubDate: 2020-03-01
       
  • Adaptation of the Parameterization of the Nonlinear Energy Transfer for
           Short Fetch Conditions in the WAVEWATCH III Wave Prediction Model
    • Abstract: The parameterization of the nonlinear energy transfer called Discrete Interaction Approximation (DIA) is optimized in the WAVEWATCH III wave model by the criterion of minimizing deviations of model predictions from the data of field measurements. Short fetches are considered for which the wind-input source function had been previously adjusted. The results of the numerical simulation and field experiment for the DIA built-in version and for the DIA with the proposed parameters are compared. The improvement of the reproduction of the main parameters of the wave spectra, significant wave height, and their mean period by the model is shown.
      PubDate: 2020-03-01
       
  • Forecast of Convective Events and Its Verification against Atmospheric
           Electricity Observations
    • Abstract: — A regional system of a short-term forecast of hazardous convective phenomena within WRF-ARW is described. It is shown that major maxima of errors in prognostic temperature and vertical velocity correlate with intense convective events, which indicates the need for additional verification procedures. A new method is proposed for forecasting hazardous convective events based on analyzing the simulated spatiotemporal distributions of the radar reflectivity of an event and comparing them with characteristic parameters (the duration, area, and maximum radar reflectivity) of intense convective events. Threshold values of the area and duration of the event are selected using field observations of powerful convective clouds, while the threshold of the maximum radar reflectivity in the vertical column is tailored for regional features. The method is verified against World-Wide Lightning Location Network (WWLLN) data and ground-based field measurements of the quasi-static electric field. It is shown that, for selected thresholds of duration (20 min) and area (50 km2), the optimal threshold of maximum radar reflectivity for Nizhny Novgorod oblast is 55 dBZ, in which case the Pierce skill score and the Heidke skill score take values of 0.61 and 0.62, respectively.
      PubDate: 2020-03-01
       
  • Analytical Model of Density Currents Arising during the Sedimentation of a
           Heavy Admixture
    • Abstract: The horizontally inhomogeneous distribution of a heavy admixture in a fluid (gaseous) medium in the field of gravity means the presence of a horizontal component of the pressure gradient force and the appearance of a density current. In the ocean, such currents are sometimes catastrophic; in the atmosphere, they can be significant, for example, in connection with some episodes of atmospheric pollution, precipitation, dust storms, and surface snowstorms. In this work, a linear stationary analytical model that makes it possible to reveal some general patterns of density currents with a heavy admixture settling above a horizontal surface is investigated. The amplitude of the occurring currents depends most strongly on the sedimentation velocity of the particles and the diffusion coefficient of the admixture.
      PubDate: 2020-03-01
       
  • Research into the Variability of Characteristics of Cloud Manifestations
           of Internal Gravity Waves during Their Lifetime Based on Himawari-8
           Satellite Data
    • Abstract: The results of studying a variability of internal-gravity-wave characteristics and their signatures based on satellite data are presented. Observations of the wave processes under study over the Russian Federation Pacific coast in the period from 2015 to 2017 are considered. High-periodic Himawari-8 satellite images and thematic products of their processing are used. The methods and algorithms for retrieving parameters of internal gravity waves and their cloud manifestations are described. Trends for various characteristics of wave processes under study are constructed. The typical variability of parameters of internal gravity waves and their signatures is revealed on the basis of the longest lasting episodes of their observation. The results of analysis of coefficients of correlation between the various characteristics of the wave processes under study are presented. Similar episodes of observing signatures of internal gravity waves for the time period under study are established. The processes occurring in the “atmosphere–underlying surface” system and their influence on the creation of favorable conditions for the generation and propagation of wave processes under study are discussed.
      PubDate: 2020-03-01
       
  • Destruction of Atmospheric Ozone in O x , HO x , NO x , ClO x , BrO x ,
           and IO x Catalytic Cycles
    • Abstract: Data on the relative contribution of the Ox, HOx, NOx, ClOx, BrOx, and IOx catalytic cycles to atmospheric ozone destruction are given for June and January 2000 at a latitude of 50° N in the height range of 0–50 km. The height profiles of the components of the above families have been calculated using the SOCRATES two-dimensional interactive model and the one-dimensional photochemical model developed at the Tal’rose Institute of Energy Problems of Chemical Physics, Russian Academy of Sciences. The initial data for the calculations are taken to be the atmospheric content of greenhouse gases according to the Intergovernmental Panel on Climate Change RCP 4.5 scenario for 2000. The ozone destruction rate is calculated using an algorithm proposed earlier by the author to determine the rate of the limiting stage of the catalytic cycle.
      PubDate: 2020-03-01
       
  • Russian Studies of Atmospheric Ozone and Its Precursors in 2015 –
           2018
    • Abstract: This review contains the most important results obtained by Russian scientists in studying atmospheric ozone in 2015–2018 and is a part of the Russian National Report on Meteorology and Atmospheric Sciences that was prepared for the International Association of Meteorology and Atmospheric Sciences (IAMAS). This report was considered and approved at the 27th General Assembly of the International Union of Geodesy and Geophysics (IUGG). A list of main Russian publications on atmospheric ozone and its precursors is appended to it.
      PubDate: 2020-03-01
       
  • Numerical Simulation of the Sea Surface Rogue Waves within the Framework
           of the Potential Euler Equations
    • Abstract: Direct numerical simulations of wind-generated gravity waves on a 2D sea surface are carried out within the framework of the basic potential equations of hydrodynamics. The data obtained for conditions of deep water, the JONSWAP spectrum and various wave intensities, widths of angular spectrum, and peakedness are processed and the results are discussed. The statistical and spectral characteristics of the waves evolve over a long time. The specific asymmetry of the typical profiles of anomalously high waves is shown. The durations of extreme events, which can be up to several tens of wave periods, are calculated.
      PubDate: 2020-03-01
       
 
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