Results 131 to 140 of about 171,972 (335)
Quarterly Journal of the Royal Meteorological Society, EarlyView.Though many studies have shown potential benefit in assimilating all‐sky infrared radiances from geostationary satellites, at numerical weather prediction centres it is still common practice to assimilate clear‐sky radiances. We present the operationalization of the all‐sky assimilation of the spinning enhanced visible and infrared imager (SEVIRI ...
Annika Schomburg +5 more
wiley +1 more source
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 +3 more
wiley +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 +4 more
wiley +1 more source
Classification of Biological Scatters Using Polarimetric Weather Radar
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingWeather radar holds the capability to monitor the extensive migration of bird and insect species. In particular, polarimetric weather radar can enhance aerial ecological monitoring by quantifying target shape through the measurement of polarization ...
Cheng Hu +7 more
doaj +1 more source
On the possibility of calibrating urban storm-water drainage models using gauge-based adjusted radar rainfall estimates [PDF]
, 2013 Traditionally, urban storm water drainage models have been calibrated using only raingauge data, which may result in overly conservative models due to the lack of spatial description of rainfall.
Maksimović, Č +4 more
core +1 more source
Quantifying driving ensemble influence on operational convection‐permitting ensemble spread
Quarterly Journal of the Royal Meteorological Society, EarlyView.By comparing statistics of precipitation patterns between a convection‐permitting ensemble and the global ensemble used to drive it, we investigate the conditions under which the convection‐permitting ensemble diverges from the evolution of the driving ensemble.
Adam Gainford +4 more
wiley +1 more source
Efficient transfer of weather information to the pilot in flight [PDF]
Efficient methods for providing weather information to the pilot in flight are summarized. Use of discrete communications channels in the aeronautical, VHF band or subcarriers in the VOR navigation band are considered the best possibilities.
Mcfarland, R. H.
core +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.As part of the ongoing efforts to develop next‐generation forecasting systems at the Meteorological Service Singapore, this study presents the setup and evaluation of the SINGV_NG(MPAS) system. Overall, the SINGV_NG(MPAS) system outperforms European Centre for Medium‐Range Weather Forecasts (ECMWF) deterministic forecasts in capturing heavy rainfall ...
I‐Han Chen +7 more
wiley +1 more source
Development and flight test of a helicopter compact, portable, precision landing system concept [PDF]
An airborne, radar-based, precision approach concept is being developed and flight tested as a part of NASA's Rotorcraft All-Weather Operations Research Program.
Bull, J. S. +3 more
core +1 more source