Results 61 to 70 of about 28,484 (242)

Two-dimensional simulations of katabatic layers observed during the GIMEX experiment [PDF]

Annales Geophysicae, 1999
The hydrostatic model SALSA is used to simulate a particular event observed during the Greenland Ice Margin EXperiment "GIMEX" (on July 12th, 1991).
A. Elkhalfi, A. Elkhalfi
doaj   +1 more source

Mesoscale and microphysical processes leading to extreme hourly rainfall prior to the merger of two mesoscale convective systems in Central China

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Short‐term extreme rainfall can be produced by the variation of low‐level warm moist airflow during mesoscale convective systems (MCSs) approaching another. The cold outflow of the rapidly moving MCS intensifies the warm moist airflow in front, enhancing the convergence and ascending motion in the quasi‐stationary MCS.
Xiaoyu Gao, Yali Luo, Jinfang Yin, Chong Wu   +3 more
wiley   +1 more source

A theory for the retrieval of virtual temperature from winds, radiances and the equations of fluid dynamics [PDF]

, 1986
A technique to deduce the virtual temperature from the combined use of the equations of fluid dynamics, observed wind and observed radiances is described.
Tzvi, G. C.
core   +1 more source

Exceptionally poor and good medium‐range forecasts of the large‐scale circulation over Europe in ERA5 reforecasts

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study investigates year‐round exceptionally poor and good day‐6 forecasts of the 500‐hPa geopotential height field over Europe using 45 years of ERA5 reforecasts and applies a weather regime perspective to analyse large‐scale pattern evolution and regime transitions.
Seraphine Hauser, Steven M. Cavallo, Linus Magnusson, Jonathan E. Martin, David B. Parsons   +4 more
wiley   +1 more source

Simulation of regional rainfall observation using urban surveillance camera networks

Environmental Research Letters
Widespread surveillance cameras show excellent potential for high spatial and temporal resolution rainfall observation. As the accuracy of surveillance camera-based rain gauges (SRGs) continues to improve, surveillance camera-based rainfall observation ...
Xing Wang, Ang Zhou, Kun Zhao, Haiqin Chen   +3 more
doaj   +1 more source

Multistep variational data assimilation: important issues and a spectral approach

Tellus: Series A, Dynamic Meteorology and Oceanography, 2016
In this paper, two important issues are raised for multistep variational data assimilation in which broadly distributed coarse-resolution observations are analysed in the first step, and then locally distributed high-resolution observations are analysed ...
Qin Xu, Li Wei, Jidong Gao, Qingyun Zhao, Kang Nai, Shun Liu   +5 more
doaj   +1 more source

Covariance of the intertropical discontinuity and African easterly jet in Sahelian wet and dry years

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Intertropical discontinuity and African easterly jet (AEJ) positions are strongly correlated, with a more pronounced linear relationship across wet years. Surface heat flux anomalies modify low‐level temperature and sensible heat flux gradients that shift the AEJ core south of the gradient maxima in both composites.
Marian Amoakowaah Osei, Cornelia Klein, Christopher M. Taylor, Douglas J. Parker, Michael Baidu   +4 more
wiley   +1 more source

Observation and backward trajectory of an inertio-gravity wave in the lower stratosphere [PDF]

Annales Geophysicae, 2001
A Doppler lidar observation of an inertio-gravity wave in the mid-latitude lower stratosphere is presented. The wave packet characteristics (vertical and horizontal wavenumbers, intrinsic and apparent frequencies) are inferred from the analysis ...
A. Hertzog, A. Hertzog, C. Souprayen, A. Hauchecorne   +3 more
doaj   +1 more source

Overlooked examples of cloud self-organization at the mesoscale [PDF]

, 2004
Stratocumulus clouds are common in the tropical and subtropical marine boundary layer, and understanding these clouds is important due to their significant impact on the earth's radiation budget.
Averill, Clare, Davies, Roger, Garay, Michael J., Westphal, James A.   +3 more
core  

From Predicting Solar Activity to Forecasting Space Weather: Practical Examples of Research-to-Operations and Operations-to-Research

, 2013
The successful transition of research to operations (R2O) and operations to research (O2R) requires, above all, interaction between the two communities.
A. Pulkkinen, B. Tsurutani, C.A. Doswell, C.A. Doswell, C.A. Koning de, C.D. Fry, C.N. Arge, D. Odstrcil, D. Odstrcil, D.A. Biesecker, E.A. Araujo-Pradere, G. Klein, G. Millward, G. Siscoe, H. Xie, H.H. Sauer, L.J. Lanzerotti, M. Magsig, M.L. Kaiser, N.A. Stuart, National Research Council, O.C. St. Cyr, R. Lopez, R. Zwickl, S. Ilonidis, T. Fuller-Rowell, V. Pizzo, V.J. Pizzo, W.D. Pesnell, Y.J. Moon   +29 more
core   +1 more source