Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Jian-Wen Bao"'
Statistics of the Subgrid Cloud of an Idealized Tropical Cyclone at Convection‐Permitting Resolution
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 15, Iss 5, Pp n/a-n/a (2023)
Abstract Large‐eddy simulations of an idealized tropical cyclone (TC) were conducted as benchmarks to provide statistical information about subgrid convective clouds at a typical convection‐permitting resolution of 3 km over a TC convection syste
Externí odkaz:
https://doaj.org/article/0ba06c14722345898f417e3a0cd737b4
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 13, Iss 1, Pp n/a-n/a (2021)
Abstract In the atmosphere, convection can organize from smaller scale updrafts into more coherent structures on various scales. In bulk‐plume cumulus convection parameterizations, this type of organization has to be represented in terms of how the
Externí odkaz:
https://doaj.org/article/a1e7d1fbfa234420b4dbdccd8588df3e
Publikováno v:
Tropical Cyclone Research and Review, Vol 3, Iss 4, Pp 218-228 (2014)
ABSTRACT: When the horizontal grid size of a numerical weather prediction (NWP) model is between a few hundred meters and ~10 km, referred to as the gray zone, updrafts in convective clouds cannot be fully resolved explicitly and the use of a subgrid
Externí odkaz:
https://doaj.org/article/7140647e067d423ebcf6ffb828a3e9d9
Publikováno v:
Meteorologische Zeitschrift, Vol 16, Iss 1, Pp 87-98 (2007)
This paper presents a study of the sensitivity of numerically simulated precipitation across a mesoscale mountain range to horizontal resolution, cloud condensation nuclei (CCN) spectrum, initiation of cloud ice, numerical treatment of horizontal dif
Externí odkaz:
https://doaj.org/article/9d464d7faeb442fba4789db1b591c60a
The eddy diffusivity and mass flux (EDMF) scheme for simulating turbulent transport in the operational Global Forecast System (GFS) shows a behavior due to a physical and numerical inconsistency in the scheme's numerical procedure to obtain detrained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4de8ebd15baf47b9901a0f8204fef01c
https://doi.org/10.5194/egusphere-egu23-3553
https://doi.org/10.5194/egusphere-egu23-3553
A new double-moment parameterization with in-cloud microphysical processes is developed for use in weather forecasting and climate studies. A main ingredient of the scheme utilizes a concept to represent the partial cloudiness effect on the microphys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4a01a3f1e3c745f86f1758bbf9e1191
https://doi.org/10.5194/egusphere-egu23-16973
https://doi.org/10.5194/egusphere-egu23-16973
Publikováno v:
Monthly Weather Review. 149:3419-3432
Coarse-grained results from a large-eddy simulation (LES) using the Weather Research and Forecasting (WRF) Model were compared in this study with the WRF simulations at a typical convection-permitting horizontal grid spacing of 3 km for an idealized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94eab90cf8e6175a4681a701141e874f
https://doi.org/10.1175/mwr-d-21-0016.1
https://doi.org/10.1175/mwr-d-21-0016.1
A semi-Lagrangian algorithm (SLA) is implemented in NOAA's Global Forecast System (GFS) forsimulating raindrop sedimentation in a double-moment microphysics schemes. This SLA includesa significant improvement to its predecessor for single-moment rain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::845258462403684195fa6be1051c9837
https://doi.org/10.5194/egusphere-egu22-8984
https://doi.org/10.5194/egusphere-egu22-8984
The behavior of two eddy-diffusivity mass-flux (EDMF) planetary boundary layer (PBL) schemes used in NOAA’s Global Forecast System is examined at the level of mixing processes. The examination is performed by comparing the two schemes in 1-D simula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b479491fdbcef404b5b76a052086160
https://doi.org/10.5194/egusphere-egu22-6531
https://doi.org/10.5194/egusphere-egu22-6531
Autor:
Jian-Wen Bao, Sara Michelson, Philip Pegion, Jeffrey Whitaker, Lisa Bengtsson, Cecile Penland
Numerical weather prediction (NWP) systems nowadays need to be capable of providing not only high-quality deterministic forecasts, but also information about forecast uncertainty. The ensemble forecast technique is commonly used to provide an estimat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b03c2ebfadb09fbcd48d99ae622afdeb
https://doi.org/10.5194/egusphere-egu22-3111
https://doi.org/10.5194/egusphere-egu22-3111