Combining radar and rain gauge rainfall estimates using conditional mergingAtmospheric Science Letters - Tập 6 Số 1 - Trang 19-22 - 2005
Scott Sinclair, Geoff Pegram
AbstractThe Hydrologist's traditional tool for measuring rainfall is the rain gauge. Rain gauges are relatively cheap, easy to maintain and provide a direct and suitably accurate estimate of rainfall at a point. What rain gauges fail to capture well is the spatial variability of rainfall with time, an important aspect for the credible modelling of a catchment's res...... hiện toàn bộ
A method to assess the variation of urban canyon geometry from sky view factor transectsAtmospheric Science Letters - Tập 2 - Trang 32-38 - 2001
M.H Al-Jiboori, Yumao Xu, Yongfu Qian
AbstractIt is now possible to generate large quantities of sky view factor (SVF) values due to advances in digital techniques for calculating SVF from hemispherical images. Coupling image acquisition with Global Positioning System (GPS) data now enables transects to be accurately placed, enabling site‐specific SVF analysis in relation to street geometry. This paper...... hiện toàn bộ
Air flow influences on local climate: observed United Kingdom climate variationsAtmospheric Science Letters - Tập 1 - Trang 62 - 2000
Osborn Timothy J., Jones Philip D.
Identifying and removing the influence of atmospheric circulation variability on central England temperature increases the statistical significance of warming trends in spring, autumn and the annual mean over the last 50 years. The trends are more detectable because the circulation changes contribute greatly to the ‘noise’ of interannual to interdecadal variability, but induce only small multi-dec...... hiện toàn bộ
#Climate variability #climate trends #atmospheric circulation #weather types
Potential energy for slantwise parcel motionAtmospheric Science Letters - Tập 1 - Trang 56-61 - 2000
S.L. Gray, A.J. Thorpe
AbstractTwo formulations for the potential energy for slantwise motion are compared: one which applies strictly only to two‐dimensional flows (SCAPE) and a three‐dimensional formulation based on a Bernoulli equation. The two formulations share an identical contribution from the vertically integrated buoyancy anomaly and a contribution from different Coriolis terms....... hiện toàn bộ
Simulation of the Asian summer monsoon in five European general circulation modelsAtmospheric Science Letters - Tập 1 - Trang 37-55 - 2000
G.M. Martin, K. Arpe, F. Chauvin, L. Ferranti, K. Maynard, J. Polcher, D.B. Stephenson, P. Tschuck
AbstractA comparison is made of the mean monsoon climatology in five different general circulation models (GCMs) which have been used by the participants of a project, funded by the European Union, entitled Studies of the Influence, Hydrology and Variability of the Asian summer monsoon (SHIVA). The models differ considerably, in horizontal and vertical resolution, ...... hiện toàn bộ
Precipitation and Northern Hemisphere regimesAtmospheric Science Letters - Tập 5 - Trang 43-55 - 2004
Christoph C. Raible, Ute Luksch, Klaus Fraedrich
AbstractRainfall anomalies in a longterm integration of general circulation model highlight the non‐stationarity of the ocean–atmosphere coupling in the North Atlantic which becomes manifest in two regimes. Anti‐correlations between the precipitation in the tropical and subtropical western Atlantic illustrate the changes of the Hadley cell with El Niño/Southern Osc...... hiện toàn bộ