Amazon Forests Where Sensors and Models Can Overestimate the Green-Up (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption Blue colors represent areas in Amazon forests where sensors and models can overestimate the green-up of vegetation; white represents areas that lack forest cover. The map is based on a model that extends the sun-sensor correction to all pixels in the southern Amazon. Credit Doug Morton and NASA's Earth Observatory Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.