Results 71 to 80 of about 14,203 (319)
Quarterly Journal of the Royal Meteorological Society, EarlyView.An original method is applied to identify distinct periods of observed NAO spatial patterns, evaluating the ability of state‐of‐the‐art climate models to reproduce them. Their poor representation of this multidecadal variability increases uncertainty in winter precipitation projections for Europe and likely broad regions of the Northern Hemisphere ...
A. Halifa‐Marín +6 more
wiley +1 more source
Upwards Tropospheric Influence on Tropical Stratospheric Upwelling [PDF]
arXiv, 2023 The steady response of the stratosphere to a sea surface temperature (SST) forcing is considered in two separate theoretical models. It is first shown that anomalies in SST impose a geopotential anomaly at the tropopause. Solutions to the linearized quasi-geostrophic potential vorticity equations are then used to show that the vertical length scale of ...
arxiv
Weighted composite analysis and its application: an example using ENSO and geopotential height
, 2017 The arbitrariness of composite analysis due to criterion of defining positive and negative events is an unsolved problem. To deal with it, a new method based on the covariance and defined as weighted composite analysis was developed in this study.
Zhiang Xie, A. Duan, Qun Tian
semanticscholar +1 more source
Rapid versus slow intensification of idealized tropical cyclones using soundings from reanalysis
Quarterly Journal of the Royal Meteorological Society, EarlyView.Climatologically averaged environmental wind and moisture around intensifying tropical cyclones are used in an idealized model to further discriminate differences between ensembles of rapidly (RI) and slowly (SI) intensifying storms. On average, RI storms have lower vertical tilt, are more axisymmetric, and less ventilated at onset than SI storms, and ...
Samantha Nebylitsa +3 more
wiley +1 more source
Large-scale circulation features associated with the heat wave over Northeast China in summer 2018
Atmospheric and Oceanic Science Letters, 2019 In late July and early August 2018, Northeast China suffered from extremely high temperatures, with the maxium temperature anomaly exceeding 6°C. In this study, the large-scale circulation features associated with this heat wave over Northeast China are ...
Panhong TAO, Yaocun ZHANG
doaj +1 more source
Observations of a frontal–trough merger over a wildfire, Queensland, Australia
Quarterly Journal of the Royal Meteorological Society, EarlyView.Observations are presented of the meteorology of a frontal–trough merger in subtropical Australia which impacted a wildfire. An elevated nocturnal mixed layer above approx. 2500 m with increasing moisture with height was identified as the source of instability that resulted in the formation of elevated storms along a 300‐km frontal–trough boundary ...
Hamish McGowan +3 more
wiley +1 more source
Geodesy and Cartography, 2013 Currently, the determination of geopotential value W0 of local geoid that best fits local mean sea level at the Zero Tide Gauge Station is getting important in building the National Geoid-Based Vertical System.
Ha Minh Hoa
doaj +1 more source
The Evaluation of High-Degree Geopotential Models for Regional Geoid Determination in Turkey
, 2017 High-degree geopotential models of spherical harmonic coefficients are used for modelling the exterior gravity field of the Earth. These coefficients are derived from satellite tracking data, altimeter data, and terrestrial and airborne gravity data ...
M. Yilmaz +3 more
semanticscholar +1 more source
, 1997 A new solution for the static geopotential, TEG-3, complete to 70×70 in spherical harmonics, has been obtained. The solution represents one of the latest efforts to improve the Earth’s gravity model. The solution was obtained by combining inhomogeneous satellite and in situ data sets, and by simultaneously estimating the relative weights for individual
Tapley, B. +9 more
openaire +4 more sources
Weather systems and their contribution to seasonal rainfall in Australia
Quarterly Journal of the Royal Meteorological Society, EarlyView.Closed low‐pressure systems (including tropical cyclones) contribute to most of the summer rainfall over northern Australia. In southern Australia, winter rainfall is mainly associated with Rossby wave breaking, cyclones, and warm conveyor belts. Summer and winter rainfall patterns can be explained by changes in large‐scale flow and associated weather ...
Chenhui Jin +3 more
wiley +1 more source