Representation of orography and its effect on the atmospheric flow ...

Representation of orography and its effect on the atmospheric flow in global weather forecasts. Takafumi Kanehama (1,2), Irina Sandu (1), Anton Beljaars (1) ...

Impacts of orography on large-scale atmospheric circulation - Nature

Given this circulation sensitivity to parametrized orographic drag, uncertainties in its representation (Fig. 3) were unsurprisingly found ...

On the Influence of Orography on Large-Scale Atmospheric Flow in

An investigation has been conducted of the steady response to orography as described by the linearized shallow-water equations on the sphere.

On the influence of orography on large-scale atmospheric flow

... representation of the spherical domain ... an attempt to provide insight into the dynamical effects of large-scale orographic features on atmospheric ...

Impacts of orography on large-scale atmospheric - ProQuest

They capture the basic impacts of the unresolved orography on atmospheric circulation in a qualitatively correct way and have led to significant progress in ...

Uncertainty in the Representation of Orography in Weather and ...

The representation of orographic drag remains a major source of uncertainty for numerical weather prediction (NWP) and climate models. Its ...

Complex mountains and their effects on atmospheric flow | ECMWF

These disturbances are key drivers of the atmospheric circulation and influence its predictability. The under-representation of orographic ...

Impacts of orography on large-scale atmospheric circulation

They capture the basic impacts of the unresolved orography on atmospheric circulation in a qualitatively correct way and have led to significant ...

Impacts of the representation of orographic drag on the climate of an ...

Many current state-of-the-art climate models show well-known and long-standing biases in representing the atmospheric circulation of Northern Hemisphere ...

Orography - an overview | ScienceDirect Topics

The largest impact of topography on radiation fluxes is usually due to this so-called slope effect. Shadowing by nearby mountains may block the arrival of ...

Impacts of orography on large-scale atmospheric circulation

They capture the basic impacts of the unresolved orography on atmospheric circulation in a qualitatively correct way and have led to significant progress in ...

Orographic resolution driving the improvements associated ... - WCD

Thus, many questions related to orographic processes and their impacts on the atmospheric flow remain open. In this study, one of these aspects is explored ...

The Influence of the Resolution of Orography on the Simulation of ...

Besides refining the representation of the atmospheric dynamics and en- abling the use of explicit convection, this will also provide higher resolution in the ...

OROGRAPHIC EFFECTS ON PRECIPITATING CLOUDS

moisture sources, its effect on atmospheric precipitation processes ... sion and is meant to represent air flowing over the warm. Caribbean Sea over ...

P1.20A A Study of the Effect of Resolution on the Properties of ...

An accurate representation of flow over orography using numerical simulation techniques is clearly dependent on the resolution of the model used. Flow over ...

Outsize Influence of Central American Orography on Global Climate

A dominant way orography impacts large-scale climate is by blocking atmospheric flows (Molnar ... through its effects on oceanic circulation. The North ...

An improved Orography Process for High-Resolution Numerical ...

Orography influences atmospheric flow on various spatial and temporal scales. However, representing its impacts accurately in numerical weather prediction ...

Orographic effects on atmospheric circulation. a Island wake effects...

1). Although orography can now be very accurately mapped using satellites at horizontal resolutions approaching tens of metres, 3,4 the representation of its ...

Impacts of orography on large-scale atmospheric circulation - OUCI

... representation of the impacts of orography on the atmospheric flow. Existing ... circulation and numerical weather prediction models through an orographic ...

Scientists grapple with Earth surface effects on atmospheric flow

Modelling orographic drag processes ... Representing orographic drag processes in atmospheric models is particularly challenging. For a start, the ...