Figure S4 from The impact of the 2015–2016 El Niño on global photosynthesis using satellite remote sensing

Uncertainty of GOMEA SIF trend. Blue line is the baseline of GOMEA SIF we used in this study. (a) first two data points were dropped to fit the line; (b) the last two data points were dropped to fit the line; (c) the first and the last data points were dropped to fit the line; (d) One or two data points were randomly dropped in 400 tests to fit the line. In 98.3% of the tests there was a negative detrended SIF anomaly in 2015 and a positive detrended SIF anomaly in 2016.