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rain

A river in Katherine, Northern Territory, Australia
Posted inResearch Spotlights

Tree Rings Reveal a Puzzling Trend in Monsoon Intensity

by Saima May Sidik 31 March 202221 July 2022

Tree rings confirm that in northern Australia, the past 40 years have experienced more rain than any similar length of time in the past 600 years.

Aerial photo of Manaus, Brazil
Posted inNews

Pollution Is Disrupting Rain Cycles in the Amazon

by Meghie Rodrigues 4 March 202229 April 2022

A team of researchers in Brazil and the United States uncovered the importance of the mechanism of oxidation—a process with the potential to affect climate and precipitation across the tropics.

A river in southern Siberia flows between rocky banks toward mountains in the distance.
Posted inResearch Spotlights

High Mountain Rain Has Scientists Rethinking River Basics

by David Shultz 27 January 202227 January 2022

Rainfall varies with elevation, and such precipitation gradients can have profound and often counterintuitive effects on topography.

The Atacama Desert, Chile
Posted inResearch Spotlights

Understanding Rare Rain Events in the Driest Desert on Earth

by Emily Cerf 18 January 202218 January 2022

A new study reveals the atmospheric paths of storm events that can deliver a decade’s worth of rain in a few hours to the Atacama Desert.

A person carrying an umbrella walks through a rainstorm.
Posted inNews

Rainy Days Dampen Economic Growth

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 12 January 202213 January 2022

Research reveals the connection between a country’s day-to-day weather and its production.

Overhead image from rescue helicopter of damage in the path of a debris flow at the base of burned hills in Montecito, Calif.
Posted inNews

No Relief from Rain: Climate Change Fuels Compound Disasters

by Leah Campbell 17 December 202117 December 2021

Climate change is increasing the risk of fire-rain events, raising mudslide concerns in fire-prone communities.

Set of four maps showing condensed water path, frozen moist static energy anomaly, longwave heating anomaly, and shortwave heating anomaly from the 300 K sea surface temperature simulation at day 100.
Posted inEditors' Highlights

Importance of High Clouds and Moisture in Rainstorm Aggregation

by Jiwen Fan 21 October 202113 March 2023

A study of the impacts of radiative interactions with different cloud types on aggregation of rainstorms finds that interactions with high-clouds and water vapor are key.

Two maps of the tropical Pacific Ocean showing difference in precipitation between a control model and observations (top panel) and a model with elevated Central American orography (bottom panel).
Posted inEditors' Highlights

Raising Central American Orography Improves Climate Simulation

by Sarah Kang 9 June 20218 March 2022

Elevation of Central American orography significantly reduces the pervasive tropical rainfall bias by blocking the easterlies and consequently warming the northeastern tropical Pacific.

Pacific Ocean off the coast of Nuquí, Chocó, Colombia
Posted inNews

Climate Clues from One of the Rainiest Places on Earth

by Andrew J. Wight 7 June 20218 March 2022

One of the world’s rainiest places lies off Colombia’s Pacific coast. New field research sheds light on the Chocó low-level jet, a phenomenon responsible for the region’s precipitation.

Top figure shows tracking of mesoscale convective systems globally at hourly and 10-km resolution; bottom figure is a world map showing amount of rainfall that MCSs account for.
Posted inEditors' Highlights

New Global Mesoscale Convective System Tracking Database

by C. Zhang 6 May 20213 February 2022

A 20-year high-resolution global mesoscale convective system tracking database reveals the characteristics of mesoscale convective systems and their significant contributions to global rainfall.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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