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Ecological Processes
Fig. 2 | Ecological Processes

Fig. 2

From: The spatial variability of actual evapotranspiration across the Amazon River Basin based on remote sensing products validated with flux towers

Fig. 2

Mean monthly precipitation (P) and reference evapotranspiration (ET0) values for the period 2011 to 2013 at the Rio Branco (left) and Porto de Moz (right) stations (source INMET, 2017). Two major seasons are observed: (1) the rainy season starting from December until May and (2) the dry season from June to November. These patterns are more pronounced at the Porto de Moz station near the East Coast. Rio Branco reveals water shortage during July (ET0 = 78.3; P = 38.2 mm/month) and August (ET0 = 100.2; P = 58.6 mm/month). The dry period in Porto de Moz is also longer, suggesting an east-west gradient from the coast to the upper parts of the Amazon basin. Over the 3 years (2011 to 2013), there was a water-deficit at Porto de Moz, in September (ET0 = 90.4; P = 62.1 mm/month), October (ET0 = 97.2; P = 63.8 mm/month), and November (ET0 = 90.3; P = 42.9 mm/month)

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