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clouds

A satellite image of Earth’s surface shows gray material—airborne dust—fanning out over a landscape of snowy mountain peaks and vegetated lowlands.
Posted inNews

Protein Powder Makes Ice Crystals Flower

Katherine Kornei, Science Writer by Katherine Kornei 26 September 202326 September 2023

Dust from Alaska is particularly effective at forming ice crystals because it contains biological components, researchers believe. The finding has implications for cloud physics and our planet’s climate.

2 maps with colors to indication data.
Posted inEditors' Highlights

Observing the Impact of Convective Aggregation on Water Vapor

by Sarah Kang 21 September 202321 September 2023

Remote sensing measurements for water vapor isotopic composition enable us to assess how convective aggregation influences the atmospheric hydrological cycle.

Diagram from the paper.
Posted inEditors' Highlights

Simulating the Journey of Pollen in the Atmosphere

by Jiwen Fan 19 June 202314 June 2023

A new study couples an emission and transport scheme of pollen from vegetation, and explores pollen’s evolution in different atmospheric conditions and its impacts on clouds and precipitation.

A diagram from the paper.
Posted inEditors' Highlights

Simulating Clouds on Arbitrary Grids in Any Spatial Direction

by Jiwen Fan 14 June 202314 June 2023

A new non-column based spectral element implementation of cloud microphysics enables full 3D flexibility in computing clouds and improves computational efficiency.

Global map with colors indicating different types of aerosols.
Posted inEditors' Vox

Reducing Aerosol Climate-Forcing Uncertainty: A Three-Way Street

by Ralph A. Kahn 13 June 202312 June 2023

To reduce persistent aerosol-climate-forcing uncertainty, new in situ aerosol and cloud measurement programs are needed, plus much better integration of satellite and suborbital measurements with models.

Una foto de cielos nublados sobre edificios y rascacielos de ladrillo.
Posted inNews

Imágenes de satélite revelan que los paisajes urbanos generan nubes

by Elissa Welle 24 May 202324 May 2023

Los cielos cubriendo las ciudades de los EE.UU. tienen más nubes que las áreas que las rodean.

Two graphs from the paper.
Posted inEditors' Highlights

New Theory Explains Radiative Cooling of the Lower Atmosphere

by Hang Su 17 May 202317 May 2023

The shape of radiative cooling in lower atmosphere is controlled by the lapse rate in the water vapor path according to a new theory and observations from subsidence regimes in the tropical Atlantic.

A photo of cloudy skies above brick buildings and skyscrapers
Posted inNews

Cityscapes Create Cloud Cover, Satellite Images Reveal

by Elissa Welle 15 May 202324 May 2023

The skies over U.S. cities are cloudier than their surrounding areas.

示意图描述了在卷入了沙尘的斜压风暴中,冰粒子在卷云的形成。
Posted inResearch Spotlights

扬起的沙尘如何形成卷云

by Morgan Rehnberg 20 April 202320 April 2023

被气旋吹到空中的沙尘为冰云的形成提供了成核粒子。

Cloud droplets in turbulent convection within the Pi Chamber.
Posted inEditors' Highlights

Taking Cloud Microphysics Experiments to the Next Level

by Tapio Schneider 6 April 20233 April 2023

Experiments in a cloud chamber have provided valuable insights into microphysical processes and will get more realistic as the height of the chamber increases.

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