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Influence of convection on stratospheric water vapor in the North American monsoon region Influence of convection on stratospheric water vapor in the North American monsoon region

Studies associate increases in stratospheric water vapor concentrations with considerable surface warming. This study indicates that convective moisture can be transported by the monsoon circulation and yield significant, large-scale water vapor enhancements.

Extreme Outliers in Lower Stratospheric Water Vapor Over North America Extreme Outliers in Lower Stratospheric Water Vapor Over North America

MLS Observations Show Relation to Overshooting Convection Diagnosed From Colocated Aqua-MODIS Data

Seasonal stratospheric ozone trends over 2000-2018 derived from several merged data sets Seasonal stratospheric ozone trends over 2000-2018 derived from several merged data sets

Studying the seasonal dependence of stratospheric ozone trends in the past decades helps to understand variations and trends in the ozone layer.

 Plume from Australian fires influences stratospheric composition Plume from Australian fires influences stratospheric composition

An extraordinary complex of Australian fire-driven pyrocumulonimbus (pyroCb) storms at the end of 2019 (the most recent and largest of three such events in the Aura Microwave Limb Sounder, MLS, record) produced an unprecedented stratospheric plume of fire emissions that circled the globe twice.

  Assessment of Observational Evidence for Direct Convective Hydration of the Lower Stratosphere Assessment of Observational Evidence for Direct Convective Hydration of the Lower Stratosphere

Understanding the processes that control stratospheric water vapor, as well as the causes of observed stratospheric humidity variations, is the focus of active scientific research.

In the News

2020 Tied for Warmest Year on Record, NASA Analysis Shows
01.14.2021 - Continuing the planet's long-term warming trend, the year's globally averaged temperature was 1.84 degrees Fahrenheit warmer than the baseline 1951-1980 mean. 2020 edged out 2016 by a very small amount, within the margin of error of the analysis, making the years effectively tied for the warmest year on record.