Subjects -> PHYSICS (Total: 857 journals)
    - ELECTRICITY AND MAGNETISM (10 journals)
    - MECHANICS (22 journals)
    - NUCLEAR PHYSICS (53 journals)
    - OPTICS (92 journals)
    - PHYSICS (625 journals)
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    - THERMODYNAMICS (30 journals)

PHYSICS (625 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 741 Journals sorted alphabetically
Acta Acustica     Open Access   (Followers: 4)
Acta Mechanica     Hybrid Journal   (Followers: 22)
Acta Scientifica Naturalis     Open Access   (Followers: 2)
Advanced Composite Materials     Hybrid Journal   (Followers: 75)
Advanced Electronic Materials     Hybrid Journal   (Followers: 7)
Advanced Functional Materials     Hybrid Journal   (Followers: 71)
Advanced Materials     Hybrid Journal   (Followers: 254)
Advanced Quantum Technologies     Hybrid Journal   (Followers: 3)
Advanced Science Focus     Free   (Followers: 6)
Advanced Structural and Chemical Imaging     Open Access   (Followers: 2)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 2)
Advances in Clinical Radiology     Full-text available via subscription   (Followers: 4)
Advances in Condensed Matter Physics     Open Access   (Followers: 5)
Advances in Geophysics     Full-text available via subscription   (Followers: 7)
Advances in High Energy Physics     Open Access   (Followers: 23)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 4)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 33)
Advances in Natural Sciences : Nanoscience and Nanotechnology     Open Access   (Followers: 28)
Advances in OptoElectronics     Open Access   (Followers: 6)
Advances In Physics     Hybrid Journal   (Followers: 29)
Advances in Physics : X     Open Access   (Followers: 4)
Advances in Physics Theories and Applications     Open Access   (Followers: 12)
Advances in Remote Sensing     Open Access   (Followers: 59)
Aggregate     Open Access  
AIP Advances     Open Access   (Followers: 7)
AIP Conference Proceedings     Full-text available via subscription   (Followers: 2)
American Journal of Condensed Matter Physics     Open Access   (Followers: 7)
American Journal of Signal Processing     Open Access   (Followers: 14)
Anales (Asociación Física Argentina)     Open Access  
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 9)
Annalen der Physik     Hybrid Journal   (Followers: 5)
Annales Geophysicae (ANGEO)     Open Access   (Followers: 21)
Annales Henri Poincaré     Hybrid Journal   (Followers: 2)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 6)
Annals of Physics     Hybrid Journal   (Followers: 7)
Annals of West University of Timisoara - Physics     Open Access   (Followers: 1)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 4)
Annual Review of Analytical Chemistry     Full-text available via subscription   (Followers: 12)
Annual Review of Condensed Matter Physics     Full-text available via subscription   (Followers: 3)
Annual Review of Materials Research     Full-text available via subscription   (Followers: 8)
APL Materials     Open Access   (Followers: 12)
Applied Composite Materials     Hybrid Journal   (Followers: 54)
Applied Mathematics and Physics     Open Access   (Followers: 2)
Applied Physics A     Hybrid Journal   (Followers: 15)
Applied Physics Frontier     Open Access   (Followers: 2)
Applied Physics Letters     Hybrid Journal   (Followers: 44)
Applied Physics Research     Open Access   (Followers: 5)
Applied Physics Reviews     Hybrid Journal   (Followers: 11)
Applied Radiation and Isotopes     Hybrid Journal   (Followers: 4)
Applied Spectroscopy     Full-text available via subscription   (Followers: 24)
Applied Spectroscopy Reviews     Hybrid Journal   (Followers: 4)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (Followers: 1)
Asia Pacific Physics Newsletter     Hybrid Journal   (Followers: 1)
Asian Journal of Physical and Chemical Sciences     Open Access   (Followers: 2)
ASTRA Proceedings     Open Access   (Followers: 3)
Astronomy & Geophysics     Hybrid Journal   (Followers: 49)
Astronomy and Astrophysics Review     Hybrid Journal   (Followers: 39)
Atoms     Open Access   (Followers: 1)
Attention, Perception & Psychophysics     Full-text available via subscription   (Followers: 15)
Axioms     Open Access   (Followers: 1)
Bangladesh Journal of Medical Physics     Open Access  
Bauphysik     Hybrid Journal   (Followers: 1)
Biomaterials     Hybrid Journal   (Followers: 55)
Biomedical Imaging and Intervention Journal     Open Access   (Followers: 5)
Biophysical Reviews     Hybrid Journal   (Followers: 2)
Biophysical Reviews and Letters     Hybrid Journal   (Followers: 5)
BJR|Open     Open Access  
Boson Journal of Modern Physics     Open Access   (Followers: 9)
Brazilian Journal of Physics     Hybrid Journal  
Bulletin of Materials Science     Open Access   (Followers: 43)
Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics     Open Access  
Bulletin of the Atomic Scientists     Hybrid Journal   (Followers: 7)
Bulletin of the Lebedev Physics Institute     Hybrid Journal  
Bulletin of the Russian Academy of Sciences: Physics     Hybrid Journal   (Followers: 1)
Caderno Brasileiro de Ensino de Física     Open Access  
Canadian Journal of Physics     Hybrid Journal   (Followers: 11)
Cell Reports Physical Science     Open Access  
Cells     Open Access   (Followers: 2)
CERN courier. International journal of high energy physics     Free   (Followers: 8)
Chemical Physics Impact     Full-text available via subscription  
ChemPhysMater     Full-text available via subscription  
Chinese Journal of Chemical Physics     Hybrid Journal   (Followers: 1)
Chinese Journal of Physics     Hybrid Journal   (Followers: 1)
Ciencia     Open Access  
Clinical Spectroscopy     Open Access  
Cogent Physics     Open Access  
Colloid Journal     Hybrid Journal   (Followers: 2)
Communications in Mathematical Physics     Hybrid Journal   (Followers: 2)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Communications Materials     Open Access  
Communications Physics     Open Access  
Complex Analysis and its Synergies     Open Access   (Followers: 2)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 173)
Composites Part B : Engineering     Hybrid Journal   (Followers: 218)
Composites Part C : Open Access     Open Access   (Followers: 2)
Computational Astrophysics and Cosmology     Open Access   (Followers: 6)
Computational Condensed Matter     Open Access   (Followers: 1)
Computational Materials Science     Hybrid Journal   (Followers: 25)
Computational Mathematics and Mathematical Physics     Hybrid Journal   (Followers: 5)
Computational Particle Mechanics     Hybrid Journal   (Followers: 1)
Computer Physics Communications     Hybrid Journal   (Followers: 9)
Condensed Matter     Open Access   (Followers: 2)
Contemporary Physics     Hybrid Journal   (Followers: 26)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 8)
Contributions to Plasma Physics     Hybrid Journal   (Followers: 3)
Cryogenics     Hybrid Journal   (Followers: 60)
Current Applied Physics     Full-text available via subscription   (Followers: 4)
Current Science     Open Access   (Followers: 115)
Diagnostic and Interventional Imaging     Full-text available via subscription  
Diamond and Related Materials     Hybrid Journal   (Followers: 10)
Discrete and Continuous Models and Applied Computational Science     Open Access  
Doklady Physics     Hybrid Journal   (Followers: 1)
e-Boletim da Física     Open Access  
East European Journal of Physics     Open Access   (Followers: 1)
Edufisika : Jurnal Pendidikan Fisika     Open Access  
EDUSAINS     Open Access  
Egyptian Journal of Remote Sensing and Space Science     Open Access   (Followers: 25)
EJNMMI Physics     Open Access  
Emergent Scientist     Open Access  
Engineering Failure Analysis     Hybrid Journal   (Followers: 68)
Engineering Fracture Mechanics     Hybrid Journal   (Followers: 24)
Environmental Fluid Mechanics     Hybrid Journal   (Followers: 11)
EPJ Quantum Technology     Open Access   (Followers: 2)
EPJ Techniques and Instrumentation     Open Access  
EPJ Web of Conferences     Open Access   (Followers: 1)
EUREKA : Physics and Engineering     Open Access  
European Physical Journal - Applied Physics     Full-text available via subscription   (Followers: 19)
European Physical Journal C     Hybrid Journal   (Followers: 2)
Europhysics News     Open Access  
Experimental and Computational Multiphase Flow     Hybrid Journal  
Experimental Mechanics     Hybrid Journal   (Followers: 21)
Experimental Techniques     Hybrid Journal   (Followers: 51)
Exploration Geophysics     Hybrid Journal   (Followers: 4)
Few-Body Systems     Hybrid Journal   (Followers: 1)
Fire and Materials     Hybrid Journal   (Followers: 5)
FirePhysChem     Open Access  
Flexible Services and Manufacturing Journal     Hybrid Journal   (Followers: 2)
Fluctuation and Noise Letters     Hybrid Journal  
Fluid Dynamics     Hybrid Journal   (Followers: 27)
Fortschritte der Physik/Progress of Physics     Hybrid Journal  
Frontiers in Nanotechnology     Open Access   (Followers: 1)
Frontiers in Physics     Open Access   (Followers: 6)
Frontiers of Materials Science     Hybrid Journal   (Followers: 5)
Frontiers of Physics     Hybrid Journal   (Followers: 2)
Fusion Engineering and Design     Hybrid Journal   (Followers: 6)
Geochemistry, Geophysics, Geosystems     Full-text available via subscription   (Followers: 35)
Geografiska Annaler, Series A : Physical Geography     Hybrid Journal   (Followers: 4)
Geophysical Research Letters     Full-text available via subscription   (Followers: 160)
Giant     Open Access  
Glass Physics and Chemistry     Hybrid Journal   (Followers: 1)
Granular Matter     Hybrid Journal  
Graphs and Combinatorics     Hybrid Journal   (Followers: 4)
Gravitation and Cosmology     Hybrid Journal   (Followers: 6)
Heat Transfer - Asian Research     Hybrid Journal   (Followers: 10)
High Energy Density Physics     Hybrid Journal   (Followers: 3)
High Pressure Research: An International Journal     Hybrid Journal   (Followers: 3)
Himalayan Physics     Open Access  
IEEE Embedded Systems Letters     Hybrid Journal   (Followers: 60)
IEEE Journal of Quantum Electronics     Hybrid Journal   (Followers: 19)
IEEE Journal on Multiscale and Multiphysics Computational Techniques     Hybrid Journal  
IEEE Magnetics Letters     Hybrid Journal   (Followers: 7)
IEEE Nanotechnology Magazine     Hybrid Journal   (Followers: 45)
IEEE Reviews in Biomedical Engineering     Hybrid Journal   (Followers: 19)
IEEE Signal Processing Magazine     Full-text available via subscription   (Followers: 98)
IEEE Solid-State Circuits Magazine     Hybrid Journal   (Followers: 11)
IEEE Transactions on Autonomous Mental Development     Hybrid Journal   (Followers: 8)
IEEE Transactions on Biomedical Engineering     Hybrid Journal   (Followers: 35)
IEEE Transactions on Broadcasting     Hybrid Journal   (Followers: 11)
IEEE Transactions on Geoscience and Remote Sensing     Hybrid Journal   (Followers: 174)
IEEE Transactions on Haptics     Hybrid Journal   (Followers: 4)
IEEE Transactions on Industrial Electronics     Hybrid Journal   (Followers: 85)
IEEE Transactions on Industry Applications     Hybrid Journal   (Followers: 57)
IEEE Transactions on Learning Technologies     Full-text available via subscription   (Followers: 12)
IEEE Transactions on Quantum Engineering     Open Access   (Followers: 3)
IEEE Transactions on Services Computing     Hybrid Journal   (Followers: 5)
IEEE Transactions on Software Engineering     Hybrid Journal   (Followers: 84)
IEEE Women in Engineering Magazine     Hybrid Journal   (Followers: 11)
IEEE/OSA Journal of Optical Communications and Networking     Hybrid Journal   (Followers: 19)
IET Optoelectronics     Open Access   (Followers: 2)
Il Colle di Galileo     Open Access  
Image Analysis & Stereology     Open Access   (Followers: 1)
Imaging Science Journal     Hybrid Journal   (Followers: 3)
ImmunoInformatics     Open Access   (Followers: 1)
Indian Journal of Biochemistry and Biophysics (IJBB)     Open Access   (Followers: 3)
Indian Journal of Physics     Hybrid Journal   (Followers: 18)
Indian Journal of Pure & Applied Physics (IJPAP)     Open Access   (Followers: 36)
Indian Journal of Radio & Space Physics (IJRSP)     Open Access   (Followers: 49)
Infinite Dimensional Analysis, Quantum Probability and Related Topics     Hybrid Journal   (Followers: 1)
InfraMatics     Open Access  
Infrared Physics & Technology     Hybrid Journal   (Followers: 11)
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 12)
Intermetallics     Hybrid Journal   (Followers: 21)
International Applied Mechanics     Hybrid Journal   (Followers: 5)
International Heat Treatment and Surface Engineering     Hybrid Journal   (Followers: 5)
International Journal for Computational Methods in Engineering Science and Mechanics     Hybrid Journal   (Followers: 13)
International Journal for Ion Mobility Spectrometry     Hybrid Journal   (Followers: 1)
International Journal for Simulation and Multidisciplinary Design Optimization     Open Access   (Followers: 5)
International Journal of Abrasive Technology     Hybrid Journal   (Followers: 2)
International Journal of Aeroacoustics     Hybrid Journal   (Followers: 37)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 3)

        1 2 3 4 | Last

Similar Journals
Journal Cover
Annales Geophysicae (ANGEO)
Journal Prestige (SJR): 0.91
Citation Impact (citeScore): 2
Number of Followers: 21  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0992-7689 - ISSN (Online) 1432-0576
Published by Copernicus Publications Homepage  [54 journals]
  • Ionospheric plasma flows associated with the formation of the distorted
           nightside end of a transpolar arc

    • Abstract: Ionospheric plasma flows associated with the formation of the distorted nightside end of a transpolar arc
      Motoharu Nowada, Adrian Grocott, and Quan-Qi Shi
      Ann. Geophys., 40, 299–314, https://doi.org/10.5194/angeo-40-299-2022, 2022
      We report that the ionospheric plasma flow patterns associated with the J-shaped transpolar arc (a type of nightside distorted TPA), detected by the SuperDARN radar, reveal the formation process of the nightside distortion of a TPA. Equatorward flows at the TPA growth point were observed flowing out of the polar cap and then turning toward the pre-midnight main auroral oval along the TPA nightside distortion. These ionospheric flow patterns would cause the distortion at the TPA nightside end.
      PubDate: Fri, 13 May 2022 19:45:20 +020
      DOI: 10.5194/angeo-40-299-2022 2022

       
  • Multi-instrument observations of polar cap patches and traveling
           ionospheric disturbances generated by solar wind Alfvén waves coupling to
           the dayside magnetosphere

    • Abstract: Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfvén waves coupling to the dayside magnetosphere
      Paul Prikryl, Robert G. Gillies, David R. Themens, James M. Weygand, Evan G. Thomas, and Shibaji Chakraborty
      Ann. Geophys. Discuss., https//doi.org/10.5194/angeo-2022-14,2022
      Preprint under review for ANGEO (discussion: open, 0 comments)
      Solar wind Alfvén waves coupling to the dayside magnetosphere produced ionospheric density patches in the polar cap and modulated auroral electrojet currents that launched traveling ionospheric disturbances propagating in the mid latitudes. Ionospheric signatures of magnetic reconnection at the dayside magnetosphere, density patches in the polar cap, ionospheric currents and traveling ionospheric disturbances were observed by radars, ionosondes, ground magnetometers, and GPS receivers.
      PubDate: Fri, 13 May 2022 19:45:20 +020
      DOI: 10.5194/angeo-2022-142022

       
  • Menura: a code for simulating the interaction between a turbulent solar
           wind and solar system bodies

    • Abstract: Menura: a code for simulating the interaction between a turbulent solar wind and solar system bodies
      Etienne Behar, Shahab Fatemi, Pierre Henri, and Mats Holmström
      Ann. Geophys., 40, 281–297, https://doi.org/10.5194/angeo-40-281-2022, 2022
      Despite the solar wind being turbulent in nature, numerical models of its interaction with obstacles have until now assumed it to be laminar. The code \textit{Menura} allows for the global simulation of the interaction between a fully turbulent solar wind and various bodies of the solar system. The code is illustrated by a first example: the interaction between a turbulent solar wind and a comet.
      PubDate: Mon, 09 May 2022 17:30:23 +020
      DOI: 10.5194/angeo-40-281-2022 2022

       
  • Terrestrial exospheric dayside H-density profile at 3–15 RE from
           UVIS/HDAC and TWINS Lyman-α data combined

    • Abstract: Terrestrial exospheric dayside H-density profile at 3–15 RE from UVIS/HDAC and TWINS Lyman-α data combined
      Jochen H. Zoennchen, Hyunju K. Connor, Jaewoong Jung, Uwe Nass, and Hans J. Fahr
      Ann. Geophys., 40, 271–279, https://doi.org/10.5194/angeo-40-271-2022, 2022
      Exospheric Ly-α observations of UVIS/HDAC at CASSINI on its Earth swing-by and TWINS are combined to derive the exospheric H-density profile of the ecliptic dayside between 3–15 RE. At 10 RE nH=35 cm−3 is found in the vicinity of the subsolar point for quiet space weather conditions. Also a faster radial fall of the dayside H density above 8 RE (r−3) compared to lower distances of 3–7 RE (r−2.37) is found and possibly indicates enhanced loss of H atoms near the magnetopause and beyond.
      PubDate: Fri, 06 May 2022 14:59:38 +020
      DOI: 10.5194/angeo-40-271-2022 2022

       
  • Signature of gravity wave propagations from the Troposphere to Ionosphere

    • Abstract: Signature of gravity wave propagations from the Troposphere to Ionosphere
      Hisao Takahashi, Cosme A. O. B. Figueiredo, Patrick Essien, Cristiano M. Wrasse, Diego Barros, Prosper K. Nyassor, Igo Paulino, Fabio Egito, Geangelo M. Rosa, and Antonio H. R. Sampaio
      Ann. Geophys. Discuss., https//doi.org/10.5194/angeo-2022-13,2022
      Preprint under review for ANGEO (discussion: open, 0 comments)
      We observed three different wave structures in the earth’s upper atmosphere: a gravity wave in the mesosphere, the ionospheric disturbances, and the concentric wave structure in the ionosphere. We investigated these wave propagations by using airglow imaging and GNSS radio wave measurements. It is found that there was a gravity wave generation from the tropospheric convection spot. This is to report an observational evidence of gravity wave propagation from the troposphere to ionosphere.
      PubDate: Fri, 06 May 2022 14:59:38 +020
      DOI: 10.5194/angeo-2022-132022

       
  • Responses of intermediate layers to geomagnetic activity during the 2009
           deep solar minimum over the Brazilian low-latitude sector

    • Abstract: Responses of intermediate layers to geomagnetic activity during the 2009 deep solar minimum over the Brazilian low-latitude sector
      Ângela M. Santos, Christiano G. M. Brum, Inez S. Batista, José H. A. Sobral, Mangalathayil A. Abdu, and Jonas R. Souza
      Ann. Geophys., 40, 259–269, https://doi.org/10.5194/angeo-40-259-2022, 2022
      Using the Digisonde data this paper shows that the small variation in the geomagnetic activity during low solar activity can affect both the parameter of height and the frequency of the intermediate layer (ILs) over the low-latitude Brazilian sector. The most expressive responses of the ILs to geomagnetic activity were observed during the summer when the height of the ILs suffered a significant decrease with the increase of the magnetic activity magnetic in the first hours of the day.
      PubDate: Tue, 03 May 2022 05:35:32 +020
      DOI: 10.5194/angeo-40-259-2022 2022

       
  • Propagating characteristics of mesospheric gravity waves observed by an
           OI 557.7 nm airglow all-sky camera at Mt. Bohyun (36.2° N,
           128.9° E)

    • Abstract: Propagating characteristics of mesospheric gravity waves observed by an OI 557.7 nm airglow all-sky camera at Mt. Bohyun (36.2° N, 128.9° E)
      Jun-Young Hwang, Young-Sook Lee, Yong Ha Kim, Hosik Kam, Seok-Min Song, Young-Sil Kwak, and Tae-Yong Yang
      Ann. Geophys., 40, 247–257, https://doi.org/10.5194/angeo-40-247-2022, 2022
      We analysed all-sky camera images observed at Mt. Bohyun observatory (36.2° N, 128.9° E) for the period of 2017–2019. We retrieved gravity wave parameters including horizontal wavelength, phase velocity and period from the image data. The horizontally propagating directions of the wave were biased according to their seasons, exerted with filtering effect by prevailing background winds. We also evaluated the nature of vertical propagation of the wave for each season.
      PubDate: Mon, 02 May 2022 05:35:32 +020
      DOI: 10.5194/angeo-40-247-2022 2022

       
  • Dayside magnetopause reconnection and flux transfer events under radial
           

    • Abstract: Dayside magnetopause reconnection and flux transfer events under radial interplanetary magnetic field (IMF): BepiColombo Earth-flyby observations
      Weijie Sun, James A. Slavin, Rumi Nakamura, Daniel Heyner, Karlheinz J. Trattner, Johannes Z. D. Mieth, Jiutong Zhao, Qiu-Gang Zong, Sae Aizawa, Nicolas Andre, and Yoshifumi Saito
      Ann. Geophys., 40, 217–229, https://doi.org/10.5194/angeo-40-217-2022, 2022
      This paper presents observations of FTE-type flux ropes on the dayside during BepiColombo's Earth flyby. FTE-type flux ropes are a well-known feature of magnetic reconnection on the magnetopause, and they can be used to constrain the location of reconnection X-lines. Our study suggests that the magnetopause X-line passed BepiColombo from the north as it traversed the magnetopause. Moreover, our results also strongly support coalescence creating larger flux ropes by combining smaller ones.
      PubDate: Fri, 22 Apr 2022 12:58:49 +020
      DOI: 10.5194/angeo-40-217-2022 2022

       
  • High bandwidth measurements of auroral Langmuir waves with multiple
           antennas

    • Abstract: High bandwidth measurements of auroral Langmuir waves with multiple antennas
      Chrystal Moser, James LaBelle, and Iver H. Cairns
      Ann. Geophys., 40, 231–245, https://doi.org/10.5194/angeo-40-231-2022, 2022
      The HIBAR rocket launched on 28 January 2003 into the nightside aurora in order to measure high-frequency radio waves with both parallel and perpendicular antennae. The rocket encountered several short high-frequency radio wave bursts with a secondary wave associated with them, believed to be a product of a nonlinear wave–wave interaction of the initial wave with observed lower-frequency waves. Nonlinear waves are not often observed, and their dynamics are of significant interest.
      PubDate: Fri, 22 Apr 2022 12:58:49 +020
      DOI: 10.5194/angeo-40-231-2022 2022

       
  • The Lehtinen–Pirjola method modified for efficient modelling of
           geomagnetically induced currents in multiple voltage levels of a power
           network

    • Abstract: The Lehtinen–Pirjola method modified for efficient modelling of geomagnetically induced currents in multiple voltage levels of a power network
      Risto J. Pirjola, David H. Boteler, Loughlin Tuck, and Santiago Marsal
      Ann. Geophys., 40, 205–215, https://doi.org/10.5194/angeo-40-205-2022, 2022
      The Lehtinen–Pirjola (LP) method is widely used for modelling geomagnetically induced currents (GIC) in power systems but was developed when the main aim was to model GIC in only the highest voltage level of a power network. Here we present a modification to the LP method designed to provide an efficient method for modelling GIC in multiple voltage levels. We also show how existing software can easily be converted to the new method and provide examples of calculations.
      PubDate: Wed, 20 Apr 2022 22:32:50 +020
      DOI: 10.5194/angeo-40-205-2022 2022

       
  • Arecibo measurements of D-region electron densities during sunset and
           sunrise: implications for atmospheric composition

    • Abstract: Arecibo measurements of D-region electron densities during sunset and sunrise: implications for atmospheric composition
      Carsten Baumann, Antti Kero, Shikha Raizada, Markus Rapp, Michael P. Sulzer, Pekka T. Verronen, and Juha Vierinen
      Ann. Geophys. Discuss., https//doi.org/10.5194/angeo-2022-12,2022
      Preprint under review for ANGEO (discussion: open, 0 comments)
      The Arecibo radar was used to probe free electrons of the ionized atmosphere between 70 and 100 km altitude. This is also the altitude region were meteors evaporate and form secondary particulate matter the so called meteor smoke particles (MSP). Free electrons attach to these MSPs when the sun is below the horizon and cause a drop in the amount of free electrons which subject of these measurements. Furthermore we identified a different amount of free electrons during sunset and sunrise here.
      PubDate: Thu, 31 Mar 2022 10:06:34 +020
      DOI: 10.5194/angeo-2022-122022

       
  • A multi-instrumental and modeling analysis of the ionospheric responses to
           the solar eclipse on 14 December 2020 over the Brazilian region

    • Abstract: A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region
      Laysa C. A. Resende, Yajun Zhu, Clezio M. Denardini, Sony S. Chen, Ronan A. J. Chagas, Lígia A. Da Silva, Carolina S. Carmo, Juliano Moro, Diego Barros, Paulo A. B. Nogueira, José P. Marchezi, Giorgio A. S. Picanço, Paulo Jauer, Régia P. Silva, Douglas Silva, José A. Carrasco, Chi Wang, and Zhengkuan Liu
      Ann. Geophys., 40, 191–203, https://doi.org/10.5194/angeo-40-191-2022, 2022
      This study showed the ionospheric response over low-latitude regions in Brazil predicted by Martínez-Ledesma et al. (2020) for the solar eclipse event on 14 December 2020. We used a multi-instrumental and modeling analysis to observe the modifications in the E and F regions and the Es layers over Campo Grande and Cachoeira Paulista. The results showed that solar eclipses can cause significant ionosphere modifications even though they only partially reach the Brazilian low-latitude regions.
      PubDate: Mon, 28 Mar 2022 10:06:34 +020
      DOI: 10.5194/angeo-40-191-2022 2022

       
  • A case study of a ducted gravity wave event over northern Germany using
           simultaneous airglow imaging and wind-field observations

    • Abstract: A case study of a ducted gravity wave event over northern Germany using simultaneous airglow imaging and wind-field observations
      Sumanta Sarkhel, Gunter Stober, Jorge L. Chau, Steven M. Smith, Christoph Jacobi, Subarna Mondal, Martin G. Mlynczak, and James M. Russell III
      Ann. Geophys., 40, 179–190, https://doi.org/10.5194/angeo-40-179-2022, 2022
      A rare gravity wave event was observed on the night of 25 April 2017 over northern Germany. An all-sky airglow imager recorded an upward-propagating wave at different altitudes in mesosphere with a prominent wave front above 91 km and faintly observed below. Based on wind and satellite-borne temperature profiles close to the event location, we have found the presence of a leaky thermal duct layer in 85–91 km. The appearance of this duct layer caused the wave amplitudes to diminish below 91 km.
      PubDate: Tue, 22 Mar 2022 18:01:47 +010
      DOI: 10.5194/angeo-40-179-2022 2022

       
  • A technique for volumetric incoherent scatter radar analysis

    • Abstract: A technique for volumetric incoherent scatter radar analysis
      Johann Stamm, Juha Vierinen, Björn Gustavsson, and Andres Spicher
      Ann. Geophys. Discuss., https//doi.org/10.5194/angeo-2022-11,2022
      Preprint under review for ANGEO (discussion: open, 0 comments)
      The study of some ionospheric events benefit from the knowledge of how the physics varies over a volume and over time. Examples are studies of aurora or energy deposition. With EISCAT3D, measurements of ion velocity vectors in a volume will be possible for the first time. We present a technique that uses a set of such measurements to estimate electric field and neutral wind. The technique relies on adding restrictions to the estimates. We successfully consider restrictions based upon physics.
      PubDate: Mon, 21 Mar 2022 15:24:59 +010
      DOI: 10.5194/angeo-2022-112022

       
  • Statistical study and corresponding evolution of plasmaspheric plumes
           under different levels of geomagnetic storms

    • Abstract: Statistical study and corresponding evolution of plasmaspheric plumes under different levels of geomagnetic storms
      Haimeng Li, Tongxing Fu, Rongxin Tang, Zhigang Yuan, Zhanrong Yang, Zhihai Ouyang, and Xiaohua Deng
      Ann. Geophys., 40, 167–177, https://doi.org/10.5194/angeo-40-167-2022, 2022
      The plasmaspheric plume is an important region of detached plasma elements and provides an effective coupling channel of energy/mass between the inner magnetospheric plasmasphere and outer magnetosphere. In this study, using Van Allen Probe data, we present a statistical result of plasmaspheric plumes in the inner magnetosphere, which implies that the plumes tend to occur during the recovery phase of geomagnetic storms, and the occurrence rate is larger during stronger geomagnetic activity.
      PubDate: Tue, 15 Mar 2022 12:21:41 +010
      DOI: 10.5194/angeo-40-167-2022 2022

       
  • On the colour of noctilucent clouds

    • Abstract: On the colour of noctilucent clouds
      Anna Lange, Gerd Baumgarten, Alexei Rozanov, and Christian von Savigny
      Ann. Geophys. Discuss., https//doi.org/10.5194/angeo-2022-10,2022
      Preprint under review for ANGEO (discussion: open, 0 comments)
      We investigate the influence of different parameters on the colour of noctilucent clouds (highest clouds in the atmosphere), using radiative transfer calculations. We determined the effect of the particle size, optical depth, single scattering/multiple scattering and ozone. For sufficiently large optical depth and for specific viewing geometries, ozone plays only a minor role for the blueish colour of noctilucent clouds (new result).
      PubDate: Mon, 07 Mar 2022 13:27:15 +010
      DOI: 10.5194/angeo-2022-102022

       
  • An investigation into the spectral parameters of ultra-low-frequency (ULF)
           waves in the polar caps and magnetotail

    • Abstract: An investigation into the spectral parameters of ultra-low-frequency (ULF) waves in the polar caps and magnetotail
      Nataliya Sergeevna Nosikova, Nadezda Viktorovna Yagova, Lisa Jane Baddeley, Dag Arne Lorentzen, and Dmitriy Anatolyevich Sormakov
      Ann. Geophys., 40, 151–165, https://doi.org/10.5194/angeo-40-151-2022, 2022
      This paper presents a study of millihertz magnetic pulsations seen in the magnetosphere and on the Earth under quiet space weather conditions. We found that these fluctuations appear in the magnetosphere as soon as disturbances with the same frequency vanish in the solar wind. The results of this work show the possibility of a substorm developing under absolutely quiet external conditions and allow us to assume that these pulsations represent a substorm preparatory phase.
      PubDate: Tue, 01 Mar 2022 19:37:32 +010
      DOI: 10.5194/angeo-40-151-2022 2022

       
  • Magnetospheric response to solar wind forcing: ultra-low-frequency
           wave–particle interaction perspective

    • Abstract: Magnetospheric response to solar wind forcing: ultra-low-frequency wave–particle interaction perspective
      Qiugang Zong
      Ann. Geophys., 40, 121–150, https://doi.org/10.5194/angeo-40-121-2022, 2022
      Magnetospheric physics is in an extremely vibrant phase, with a number of ongoing and highly successful missions, e.g., Cluster, THEMIS, Van Allen Probes, and the MMS spacecraft, providing the most amazing observations and data sets. Since there are many fundamental and unsolved problems, in this paper I have addressed selected topics of ULF wave–charged particle interactions which encompass many special fields of radiation belt, ring current and plasmaspheric physics.
      PubDate: Mon, 28 Feb 2022 13:51:58 +010
      DOI: 10.5194/angeo-40-121-2022 2022

       
  • Local time dependence of auroral peak emission height and morphology

    • Abstract: Local time dependence of auroral peak emission height and morphology
      Noora Partamies, Daniel Whiter, Kirsti Kauristie, and Stefano Massetti
      Ann. Geophys. Discuss., https//doi.org/10.5194/angeo-2022-6,2022
      Preprint under review for ANGEO (discussion: open, 0 comments)
      We investigate the local time behaviour of auroral structures and emission height. The data are collected from the Fennoscandian Lapland and Svalbard from 7 identical auroral all-sky cameras over about one solar cycle. The typical peak emission height of the green aurora varies from 110 km on the nightside to about 118 km in the morning over the Lapland region but stays systematically higher over Svalbard. During fast solar wind nightside emission heights are 5 km lower than during slow solar wind.
      PubDate: Mon, 28 Feb 2022 13:51:58 +010
      DOI: 10.5194/angeo-2022-62022

       
  • Spatio-temporal development of large-scale auroral electrojet currents
           relative to substorm onsets

    • Abstract: Spatio-temporal development of large-scale auroral electrojet currents relative to substorm onsets
      Sebastian Käki, Ari Viljanen, Liisa Juusola, and Kirsti Kauristie
      Ann. Geophys., 40, 107–119, https://doi.org/10.5194/angeo-40-107-2022, 2022
      During auroral substorms, the ionospheric electric currents change rapidly, and a large amount of energy is dissipated. We combine ionospheric current data derived from the Swarm satellite mission with the substorm database from the SuperMAG ground magnetometer network. We obtain statistics of the strength and location of the currents relative to the substorm onset. Our results show that low-earth orbit satellites give a coherent picture of the main features in the substorm current system.
      PubDate: Mon, 21 Feb 2022 19:14:33 +010
      DOI: 10.5194/angeo-40-107-2022 2022

       
 
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