Results 71 to 80 of about 6,317 (256)
Dynamics and thermodynamics of the fast and slow Madden–Julian Oscillation
Quarterly Journal of the Royal Meteorological Society, EarlyView.The results of this study highlight the MJO as a complex phenomenon, the behavior of which is driven by an interplay of thermodynamic and dynamic processes. The MJO's distinct speeds are controlled by different mechanisms: slow MJOs propagate eastward primarily via horizontal moisture advection, fast MJOs by vertical moisture advection.
Víctor C. Mayta +3 more
wiley +1 more source
300hPa geopotential height of Global Spectral Model 2.5 deg Resolution ft=6 80E-160W 20S-60N [PDF]
model: Global Spectral Model; resolution: 2.5; area: 80E-160W 20S-60N; level: 300hPa; element: geopotential height; forecast-time: 6; access: no restriction; use: unrestricted (WMO Res.40 Essential)
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Quarterly Journal of the Royal Meteorological Society, EarlyView.Mediterranean tropical‐like cyclones show a clear seasonality, with September cyclones exhibiting the deepest convection and Ianos representing the most extreme case. While one or more dry intrusions are typically detected during the cyclone life cycle, Ianos instead features two much weaker descending airflows.
Daniele Nigro +4 more
wiley +1 more source
1000hPa geopotential height of Global Spectral Model 1.25 deg Resolution ft=156 150E-120W NH [PDF]
model: Global Spectral Model; resolution: 1.25; area: 150E-120W NH; level: 1000hPa; element: geopotential height; forecast-time: 156; access: no restriction; use: unrestricted (WMO Res.40 Essential)
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Quarterly Journal of the Royal Meteorological Society, EarlyView.During the day, there is composite mean cold advection in the boundary layer on warm days (WDs), hot days (HDs) and heatwaves (HWs). There is weaker surface‐sensible heating on HDs and HWs. A nocturnal jet advects warm air on HDs and HWs. There is a strong and slow‐moving upper‐level anticyclone on HWs.
Qinuo Huang +3 more
wiley +1 more source
500hPa geopotential height of Global Spectral Model 1.25 deg Resolution ft=120 30W-60E SH [PDF]
model: Global Spectral Model; resolution: 1.25; area: 30W-60E SH; level: 500hPa; element: geopotential height; forecast-time: 120; access: no restriction; use: unrestricted (WMO Res.40 Essential)
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Evaluation of terrestrial and airborne gravity data over Antarctica – a generic approach
Journal of Geodetic Science, 2019 The AntGrav project, funded by the German Research Foundation (DFG) has the main objective to homogenize and optimize Antarctic gravity field information.
Zingerle P. +3 more
doaj +1 more source
Geodesy and Cartography, 2016 The aim of this study is to analyze the best fitting geoid model for an arbitrary selected area of investigation. The Digital Finite Element Height Reference Surface (DFHRS) method, developed by Hochschule Karlsruhe has been chosen to define the height ...
Perparim Ameti, Reiner Jager
doaj +1 more source
Coupled observation‐operator approximations in outer‐loop coupling data assimilation
Quarterly Journal of the Royal Meteorological Society, EarlyView.We present a methodology for coupled variational data assimilation that allows the effect of coupled observation operators whilst maintaining separate minimisations across model components. This allows us to constrain the atmosphere, ocean, and sea‐ice components of our coupled model directly from satellite radiances. We illustrate the system in action
P. A. Browne +5 more
wiley +1 more source
400hPa geopotential height of Global Spectral Model 1.25 deg Resolution ft=120 30W-60E SH [PDF]
model: Global Spectral Model; resolution: 1.25; area: 30W-60E SH; level: 400hPa; element: geopotential height; forecast-time: 120; access: no restriction; use: unrestricted (WMO Res.40 Essential)
core