Global Biogeochemical Cycles

NLA sampling locations and Level II Ecoregion boundaries. Blue points represent natural lakes, red points represent artificial water bodies.

Simulated land carbon inventory changes after the Pinatubo eruption in the El Niño summer case. (a) Temporal evolution of zonally integrated ensemble monthly mean differences in vegetation carbon between six simulations with and without volcanic eruptions started in El Niño summer conditions. (b) Same as Figure a, but for soil carbon.

Sampling areas and station locations. The color scale represents the water column depth (in meters).

Water masses, currents and frontal features in the New Zealand region (modified from Heath []). The box shows the location of the study region, enlarged in the inlay: Sta. Munida is marked with an X.

Precipitation and precipitation anomaly maps for 2008 and 2009 spring discharge events. High discharge in 2008 emanated from the Ohio River valley with strong positive anomalies, while the spring discharge event in 2009 emanated from more local rainfall in the lower Mississippi River valley.

Location of the study area and sampling stations in the Curuai floodplain and Amazon River (Óbidos). Orange circles correspond to stations under direct influence of the Amazon River (white water lakes), and gray circles correspond to stations under more influence from basin drainage (black water lakes). The main channels between floodplain lakes and the Amazon River and gauging stations in the river and floodplain are identified by white bars.

Stacked histograms showing the variations of contribution concentration of factors 1, 2, and 3 (a) and flux of 16 PAHs contributed by factors 1 (b), 2 (c), and 3 (d) in sediments estimated by the PMF model.