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tropics

Photo of forest on the island of Dominica
Posted inNews

Climate Benefits of Forests Go Far Beyond Carbon Sequestration

by Santiago Flórez 26 April 20221 June 2023

Forests are “essentially air-conditioning systems” thanks to biophysical processes like evapotranspiration and canopy roughness.

Comparison of the range of lithium isotopic ratios measured in this work at the Bisley 1 catchment in Puerto Rico with those previously published.
Posted inEditors' Highlights

Extreme Lithium Isotope Fractionations During Intense Weathering

by Lixin Jin 18 April 202221 December 2022

Extreme lithium fractionation is observed when primary minerals in andesite are transformed to secondary clay minerals and then to oxides with intensive chemical weathering in a tropical climate.

A picture of rainfall in a tropical rainforest.
Posted inEditors' Vox

Understanding Abrupt Climate Change in the Late Quaternary

by Raymond S. Bradley and Henry F. Diaz 18 November 20212 July 2024

During the late Quaternary period, a series of abrupt climate changes in the tropics and sub-tropics driven by changes in ocean circulation were both dramatic and disruptive.

A coast of the Galapagos Islands in the eastern tropical Pacific
Posted inNews

Tropical Climate Change Is a Puzzle—Could Aerosols Be a Piece?

by Andrew Chapman 9 September 202114 April 2022

The eastern tropical Pacific Ocean hasn’t warmed as much as climate change models projected. A new study shows that aerosols in the atmosphere could be responsible.

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.

The moon appears at the top of the layers of atmosphere above the dark Earth. The orange-red glow is Earth’s troposphere, and the brown transitional layer is the tropopause.
Posted inResearch Spotlights

Convective Transport Explains “Missing” Ice near the Tropical Tropopause

by David Shultz 10 May 202129 March 2022

Spaceborne lidar shows that more ice than expected is leaving the tropical tropopause layer in the atmosphere.

A satellite image of a tropical forest.
Posted inEditors' Vox

Tropical Carbon and Water Observed from Above

by J. Worden, S. Saatchi and A. Bloom 6 April 202129 March 2023

Satellite observations show how tropical forest carbon fluxes respond to changes in water from climate variability.

Plot showing relationship between subsidence rates and drainage density
Posted inEditors' Highlights

SE Asia Peatlands Subsidence Tied to Drainage Density

by A. Barros 29 March 202129 March 2023

Human-made channelization significantly accelerates peat decomposition and drives ground-surface deformation in tropical wetlands.

World map showing trends of gross primary productivity, increasing in the northern latitudes and decreasing in the tropics
Posted inEditors' Highlights

Water Stress Controls the Capacity of the Terrestrial Carbon Sink

by A. Barros 17 December 20201 March 2023

Despite increased photosynthetic activity at northern latitudes in recent decades, plant productivity in tropical zones suffers because of water limitations.

Four plots showing composites for very cold cloud tops for tropical cyclones in the western North Pacific during intensification at different times for the period 2000-2017
Posted inEditors' Highlights

How Tropical Cyclones Increase in Intensity Overnight

by Suzana Camargo 9 December 202030 September 2022

The diurnal variations of tropical cyclone intensification and decay are analyzed using satellite data for deep convective clouds.

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