Results 21 to 30 of about 49,766 (339)

Testing microphysics data [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractHigh precision asteroseismic data provide a unique opportunity to test input microphysics such as stellar opacities, chemical composition or equation of state. These tests are possible because pulsational frequencies as well as amplitudes and phases of the light variations are very sensitive to the internal structure of a star. We can therefore
Walczak, Przemysław, Daszyńska-Daszkiewicz, Jadwiga   +1 more
openaire   +2 more sources

A Case Study on Microphysical Characteristics of Mesoscale Convective System Using Generalized DSD Parameters Retrieved from Dual-Polarimetric Radar Observations

Remote Sensing, 2020
The microphysical characteristics of a mesoscale convective system (MCS) during a summer monsoon of South Korea are investigated using the generalized drop size distributions (DSD) that are derived from S-band dual-polarization radar data.
Soohyun Kwon, Sung-Hwa Jung, GyuWon Lee
doaj   +1 more source

Efficiency Crisis of Swift Gamma-Ray Bursts with Shallow X-ray Afterglows: Prior Activity or Time-Dependent Microphysics? [PDF]

, 2005
Most X-ray afterglows of gamma-ray bursts (GRBs) observed by the Swift satellite have a shallow decay phase t^{-1/2} in the first few hours. This is not predicted by the standard afterglow model and needs an explanation. We discuss that the shallow decay
Barthelmy, Beloborodov, Blandford, Burrows, Cusumano, Dai, Eichler, Fan, Fan, Frail, Gehrels, Granot, Hill, Ioka, Ioka, K. Ioka, K. Toma, Kato, King, Kobayashi, Kumar, Lazzati, Lazzati, Lithwick, Lloyd-Ronning, Medvedev, Nousek, Perna, Piro, R. Yamazaki, Sari, Sari, Sari, Silva, T. Nakamura, Tagliaferri, Toma, Vaughan, Vietri, Yamazaki, Zhang   +40 more
core   +3 more sources

Measurement report: Contribution of atmospheric new particle formation to ultrafine particle concentration, cloud condensation nuclei, and radiative forcing – results from 5-year observations in central Europe [PDF]

Atmospheric Chemistry and Physics
As an important source of sub-micrometer particles, atmospheric new particle formation (NPF) has been observed in various environments. However, most studies provide little more than snapshots of the NPF process due to their underlying observations being
J. Sun, J. Sun, M. Hermann, K. Weinhold, M. Merkel, W. Birmili, Y. Yang, T. Tuch, H. Flentje, B. Briel, L. Ries, C. Couret, M. Elsasser, R. Sohmer, K. Wirtz, F. Meinhardt, M. Schütze, O. Bath, B. Hellack, V.-M. Kerminen, M. Kulmala, N. Ma, A. Wiedensohler   +22 more
doaj   +1 more source

Cloud microphysics and aerosol indirect effects in the global climate model ECHAM5-HAM [PDF]

, 2007
The double-moment cloud microphysics scheme from ECHAM4 has been coupled to the size-resolved aerosol scheme ECHAM5-HAM. ECHAM5-HAM predicts the aerosol mass and number concentrations and the aerosol mixing state.
Ferrachat, S., Hoose, C., Kloster, S., Lohmann, U., Roeckner, E., Stier, P., Zhang, J.   +6 more
core   +5 more sources

Sensitivity Assessment of WRF Parameterizations over Europe

Proceedings, 2017
Evaluation of the performance of the parameterization schemes used in the WRF model is assessed for temperature and precipitation over Europe at 36 km by 36 km grid resolution using gridded data from the ECA & D 0.25° regular grid.
Ioannis Stergiou, Efthimios Tagaris, Rafaella-Eleni P. Sotiropoulou   +2 more
doaj   +1 more source

Sensitivity of Modeled Microphysics to Stochastically Perturbed Parameters

Journal of Advances in Modeling Earth Systems, 2022
This study examines the characteristics of several model parameter perturbation methodologies for ensemble simulations of cloud microphysical processes in convection.
T. Vukicevic, D. J. Posselt, A. Stankovic   +2 more
doaj   +1 more source

Contrail microphysics in the near wake of a realistic wing through RANS simulations [PDF]

, 2012
This paper focuses on Steady Reynolds Average Navier Stokes simulations (RANS) of ice particles growth in the near field of a wing-injector configuration.
Guignery, Florent, Montreuil, Emmanuel, Thual, Olivier, Vancassel, Xavier   +3 more
core   +3 more sources

The Effect of Anthropogenic Heat and Moisture on Local Weather at Industrial Heat Islands: A Numerical Experiment

Atmosphere, 2022
The current study addresses the role of heat and moisture emitted from anthropogenic sources on the local weather with the aid of numerical weather prediction (NWP).
Parthasarathi Mishra, Srinivasa Ramanujam Kannan, Chandrasekar Radhakrishnan   +2 more
doaj   +1 more source

Effects of Cloud Parameterization on Radiation and Precipitation: A Comparison Between Single-Moment Microphysics and Double-Moment Microphysics

Terrestrial, Atmospheric and Oceanic Sciences, 2011
This study compares a single-moment microphysics scheme to a double-moment microphysics scheme using four observed cases of a mesoscale cloud system. Previous studies comparing a single-moment microphysics scheme to a double-moment microphysics scheme ...
Seoung Soo Lee Leo J. Donner
doaj   +1 more source