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Related Experiment Video

Updated: Jun 4, 2026

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce (Lactuca sativa) Germplasm Collections

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Published on: April 17, 2015

The 2010 Amazon drought.

Simon L Lewis¹, Paulo M Brando, Oliver L Phillips

¹School of Geography, University of Leeds, Leeds LS2 9JT, UK. s.l.lewis@leeds.ac.uk

Science (New York, N.Y.)

|February 5, 2011

Summary

This summary is machine-generated.

The 2010 Amazon drought impacted more area than the 2005 event, causing an estimated 2.2 billion metric tons of carbon emissions from tree deaths. This analysis used satellite rainfall data to compare the two major droughts.

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Area of Science:

Environmental Science
Climate Science
Ecology

Background:

Amazonia experienced severe drought in 2005 and 2010.
The 2010 dry season exhibited widespread low rainfall across the Amazon basin.
Drought conditions in 2010 showed similarities to the significant 2005 drought event.

Purpose of the Study:

To compare the spatial extent and impact of the 2005 and 2010 Amazon droughts.
To estimate carbon emissions resulting from drought-induced tree mortality in the Amazon.
To analyze trends in Amazonian dry-season rainfall using satellite data.

Main Methods:

Analysis of a decade of satellite-derived rainfall data (2000-2010).
Calculation of standardized rainfall anomalies to quantify drought severity.
Extrapolation of 2005 drought-response relationships to predict 2010 carbon emissions.

Main Results:

In 2010, 57% of Amazonia experienced low dry-season rainfall, compared to 37% in 2005.
The 2010 drought is predicted to cause 2.2 x 10^15 grams of carbon emissions.
The 2005 drought resulted in an estimated 1.6 x 10^15 grams of carbon emissions.

Conclusions:

The 2010 Amazon drought was more extensive than the 2005 event.
Drought-induced tree mortality represents a significant source of carbon emissions in the Amazon.
Continued monitoring of Amazonian rainfall and forest response is crucial for understanding climate change impacts.