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Figure 1

From: The impact of extreme El Niño events on modern sediment transport along the western Peruvian Andes (1968–2012)

Figure 1

(a) Suspended sediment yield (SSY) data along the Andes Mountains. Circle centres indicate the locations of hydro-sedimentological stations, while their size is proportional to the SSY. Red and lead circles represent data from this study and the literature29,30,31,32,33,34,35,36,37,38, respectively. The black dotted line separates the Pacific and Atlantic watersheds. (b) Location of the 20 studied stations/watersheds in the northern, central and southern Peruvian Andes. Watersheds are numbered generally from north to south, according to Table 1. Topography is based on the Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) with a 90 m × 90 m resolution. (c) Studied catchments with concave up (blue background) or concave down (gray background) normalized hypsometric curves are located in North (3–7°S) and South (7–18°S) Peru, respectively. The map was generated using ArcGIS for Desktop 9.3 (www.esri.com/software/arcgis).

Table 1 Locations details, watershed topographies, and geomorphologic characteristics of hydro-sedimentology stations.
Full size table

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