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Boundary layer processes

Two maps of Europe showing the fraction of days during May-August 2018 when estimated soil moisture fell below a critical threshold based on daily maximum temperature (top) and evaporative fraction (bottom) compared to the 1979-2018 average.
Posted inEditors' Highlights

Dry Soils Enhanced the 2018 Heatwave in Northern Europe

by Susan Trumbore 3 May 202128 September 2021

A range of observations show that a shift in land-atmosphere coupling exacerbated the hot drought experienced in Europe in 2018.

Cumuliform clouds hover over the Atlantic Ocean
Posted inResearch Spotlights

A New Way to Fingerprint Drivers of Water Cycle Change

by Terri Cook 15 October 2020

Simulations of tropical ocean convection help distinguish climate effects resulting from large-scale changes in atmospheric circulation from those resulting from higher temperatures.

Artistic illustration of three-dimensional clouds simulated at local scales and tethered to a map, which represents a much larger climate model.
Posted inResearch Spotlights

A “Super” Solution for Modeling Clouds

by Aaron Sidder 6 September 2019

Climate models struggle to accurately portray clouds because the models cannot resolve the scales at which clouds form. A new study demonstrates a potential fix for the problem.

Posted inEditors' Highlights

What Drives Surface Winds in a Deep Valley?

by Minghua Zhang 7 March 20196 March 2019

Surface winds in a Himalayan valley are found to vary daily and seasonally due to factors including pressure gradient, advection, turbulent vertical mixing, and the presence of glaciers.

Researchers measure wind speeds to understand turbulence in nighttime inversions of the stable boundary layer.
Posted inResearch Spotlights

Wind Speed Governs Turbulence in Atmospheric Inversions

by Terri Cook 21 September 2018

Measurements made during a field campaign in Idaho indicate that the speed of winds 2 meters above Earth’s surface determines the type of turbulence present in nighttime inversions.

Moon’s shadow obscures Sun during Great American Eclipse
Posted inScience Updates

Great American Eclipse Data May Fine-Tune Weather Forecasts

by T. R. Lee, M. Buban, M. A. Palecki, R. D. Leeper, H. J. Diamond, E. Dumas, T. P. Meyers and C. B. Baker 16 August 201829 September 2021

Measurements taken by an automated national meteorological monitoring network during the 2017 total solar eclipse illuminate how the land and atmosphere respond to a sudden loss of sunlight.

Offshore turbines in the wind farm Nordsee Ost (North Sea East) near Helgoland, Germany.
Posted inResearch Spotlights

Offshore Wind Turbines Can’t Yet Withstand Category 5 Hurricanes

by E. Underwood 8 August 201715 August 2017

A new study suggests that more robust turbine design is needed to weather high winds.

Posted inResearch Spotlights

Radar Study Examines Pulsing Tropical Climate

by David Shultz 22 February 201622 February 2016

In the Madden-Julian Oscillation, shear forces caused by air layers slipping and sliding near the equator play a critical role in forming enormous thunderstorms and monsoons.

Posted inResearch Spotlights

Urbanization Threatens Drought-Reducing Clouds in California

by C. Palmer 16 July 201516 July 2015

Since the mid-20th century, increased urbanization along the southern California coast has raised nighttime temperatures, resulting in less morning fog and cloud cover.

From AGU Journals

MOST SHARED
Reviews of Geophysics
“Global and Regional Trends and Drivers of Fire Under Climate Change”
By Matthew W. Jones et al.

HIGHLY CITED
Global Biogeochemical Cycles
“Emission of trace gases and aerosols from biomass burning”
By M. O. Andreae, P. Merlet

HOT ARTICLE
Geophysical Research Letters
“Relating Slip Behavior to Off-Fault Deformation Using Physical Models”
By Emily O. Ross et al.


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