Results 1 to 10 of about 146 (70)

Evaluation of a cloudy cold-air pool in the Columbia River basin in different versions of the High-Resolution Rapid Refresh (HRRR) model [PDF]

open access: yesGeoscientific Model Development, 2023
The accurate forecast of persistent orographic cold-air pools in numerical weather prediction models is essential for the optimal integration of wind energy into the electrical grid during these events.
B. Adler   +10 more
doaj   +1 more source

Synoptic Analysis of Upper- Cold Air Pool Effects on Generating or Intensifying Rainfall in the Warm Season in East Azerbaijan [PDF]

open access: yesجغرافیا و توسعه, 2016
In synoptic meteorology, establishment of cold air masses  at the middle and upper levels of the atmosphere is called cold air cell or cold air pool (Cold Pool).
Farnaz Pourasghar   +4 more
doaj   +1 more source

Simulations of a cold-air pool associated with elevated wintertime ozone in the Uintah Basin, Utah [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
Numerical simulations are used to investigate the meteorological characteristics of the 31 January–6 February 2013 cold-air pool in the Uintah Basin, Utah, and the resulting high ozone concentrations.
E. M. Neemann   +3 more
doaj   +1 more source

Simulation of the Dynamic and Thermodynamic Structure and Microphysical Evolution of a Squall Line in South China

open access: yesAtmosphere, 2021
A squall line that occurred in south China on 31 March 2014 was simulated with the Weather Research and Forecasting model. The microphysical processes had an important influence on the dynamic and thermodynamic structure of the squall line.
Jingyuan Li   +3 more
doaj   +1 more source

Assessment of valley cold pools and clouds in a very high-resolution numerical weather prediction model [PDF]

open access: yesGeoscientific Model Development, 2015
The formation of cold air pools in valleys under stable conditions represents an important challenge for numerical weather prediction (NWP). The challenge is increased when the valleys that dominate cold pool formation are on scales unresolved by NWP ...
J. K. Hughes   +4 more
doaj   +1 more source

Evolution of squall line variability and error growth in an ensemble of large eddy simulations [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
A chain of processes is identified that regulates much of the spread in an ensemble of squall lines in large eddy simulations with tight initial conditions.
E. Groot, H. Tost
doaj   +1 more source

RANS Simulation of Local Strong Sandstorms Induced by a Cold Pool with Vorticity

open access: yesAtmosphere, 2020
Local strong sandstorms (LSSs) in northwestern China often occur suddenly in tens of minutes during the late afternoon and by dusk. Observations and theoretical studies have shown the trigger role of cold-air pools over desert areas for the occurrence of
Yuanping He   +7 more
doaj   +1 more source

An Overview of Triggering Mechanisms and Characteristics of Local Strong Sandstorms in China and Haboobs

open access: yesAtmosphere, 2021
The local strong sandstorms (LSS), similar to haboobs in Sahara and the North America, often occur suddenly, in tens of minutes during the late afternoon, and before dusk in deserts in China, causing a significant impact on the local atmospheric ...
Zhaolin Gu   +6 more
doaj   +1 more source

Mechanical Forcing of Convection by Cold Pools: Collisions and Energy Scaling

open access: yesJournal of Advances in Modeling Earth Systems, 2020
Forced mechanical lifting through cold pool gust fronts can trigger new convection and, as previous work highlights, is enhanced when cold pools collide. However, as shown by conceptual models, the organization of the convective cloud field emerging from
Bettina Meyer, Jan O. Haerter
doaj   +1 more source

What caused the unseasonal extreme dust storm in Uzbekistan during November 2021?

open access: yesEnvironmental Research Letters, 2023
An unseasonal dust storm hit large parts of Central Asia on 4–5 November 2021, setting records for the column aerosol burden and fine particulate concentration in Tashkent, Uzbekistan.
Xin Xi   +6 more
doaj   +1 more source

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