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seasonal variability

Image of a canyon in the Cerberus Fossae region on Mars. One side of the canyon is in shadow, whereas the other is brightly illuminated.
Posted inNews

Summer Could Be Earthquake Season on Mars

by Elise Cutts 1 November 202129 June 2022

InSight data hint that shifting carbon dioxide ice loads, illumination changes, or solar tides could drive an uptick in marsquakes during northern summer—a “marsquake season.”

Two plots showing that Delhi may experience two fewer days of pollution-favorable weather pattern and seven more days of clean-favorable weather pattern in 2070–2099.
Posted inEditors' Highlights

Reduced Winter PM2.5 in Northern India Under Global Warming

by Bin Zhao 29 October 202119 October 2022

Global warming is projected to alleviate PM2.5 pollution in Delhi by decreasing pollution-favorable weather days and increasing clean-favorable weather days.

Plot showing measured atmospheric dust concentrations on 24 buoy filters, aerosol optical depth, and precipitation for two buoys.
Posted inEditors' Highlights

Seasonality in Saharan Dust Across the Atlantic Ocean

by P. Yang 26 August 20212 February 2022

The first time series of bi-weekly dust concentrations measured in-situ across the remote Atlantic Ocean.

Aerial view of Lake Oroville near Enterprise Bridge in California on 23 October 2015 showing low water levels
Posted inFeatures

Better Subseasonal-to-Seasonal Forecasts for Water Management

by M. J. DeFlorio, F. M. Ralph, D. E. Waliser, J. Jones and M. L. Anderson 23 June 20219 March 2023

Emerging methods that improve precipitation forecasting over weeks to months could support more informed resource management and increase lead times for responding to droughts and floods.

A close-up photograph of the eye of Hurricane Dorian.
Posted inNews

Your Summer Outlook: Cloudy with an Above-Normal Chance of Hurricanes

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 20 May 202128 April 2022

Get ready for another above-average hurricane season, but it likely won’t be as busy as last year.

Two maps of North America showing patterns of CO2 uptake by photosynthesis during the growing season based on two different models of atmospheric CO2 variations.
Posted inEditors' Highlights

How Do Croplands Reduce CO2 During the Growing Season?

by Susan Trumbore 20 May 202123 March 2023

Regional variations in the seasonal drawdown of atmospheric CO2 can be used as a benchmark for evaluating models and satellite-derived estimates of land carbon uptake.

Sea ice off the coast of Antarctica
Posted inResearch Spotlights

South Pole Ice Core Reveals History of Antarctic Sea Ice

Elizabeth Thompson by Elizabeth Thompson 12 May 202114 March 2023

Every summer, most of the sea ice near Antarctica melts away, but its saltiness leaves a permanent record that scientists can trace back for millennia.

Ice-covered trees line a road.
Posted inNews

The Who, What, When, Where, and Why of the Polar Vortex

Katherine Kornei, Science Writer by Katherine Kornei 12 May 202129 March 2022

Here’s a rundown of what this atmospheric phenomenon really is and why it matters.

Artist’s rendering of a thunderstorm occurring during a winter snowstorm
Posted inNews

Rare Wintertime Thunderstorms Recorded over the U.S. Gulf Coast

Katherine Kornei, Science Writer by Katherine Kornei 6 April 20212 September 2022

“Thundersnow”—thunderstorm activity accompanying a winter storm—was spotted near southern Texas earlier this year.

Observed median July temperatures in eleven headwater streams by the Agashashok, Cutler, and Imelyak rivers in the Noatak river basin.
Posted inEditors' Highlights

Thawing Permafrost May Cause Streams to Cool

by D. Moore 3 March 20213 March 2023

Permafrost thawing associated with climate warming increases contributions to streamflow by deeper, cooler groundwater flow paths, which may result in lower summer stream temperatures.

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Machine Learning Simulates 1,000 Years of Climate

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Editors' Highlights

Radar Surveys Reveal Permafrost Recovery After Wildfires

4 September 20254 September 2025
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Experienced Researcher Book Publishing: Sharing Deep Expertise

3 September 202526 August 2025
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