2008
DOI: 10.1029/2007gl032011
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Orographic barriers, high‐resolution TRMM rainfall, and relief variations along the eastern Andes

Abstract: [1] Quantifying the degree to which tectonic and erosive processes shape landscapes is key to understanding the evolution of tectonically active mountain belts. Here we explore the interplay of these two processes along the humid, eastern flank of the South American Andes. We use high-resolution Tropical Rainfall Measurement Mission (TRMM) and SRTM data to characterize elevation, relief, and hillslope angle of peak rainfall at orographic barriers. Over a distance of more than 3500 km along the eastern flanks, … Show more

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Cited by 334 publications
(361 citation statements)
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“…Mean annual precipitation increases from zero in the core of the Atacama desert at 22°S to about 3500 mm/a on the windward eastern side of the Andes at 41°S (e.g. Kummerow et al, 2000, New et al, 2002, TRMM, 2007, Bookhagen and Strecker, 2008. In the north the prevailing humid trade winds and the low-level Andean Jet from the east and northeast are blocked by the Andean topography.…”
Section: Climatic Settingmentioning
confidence: 99%
“…Mean annual precipitation increases from zero in the core of the Atacama desert at 22°S to about 3500 mm/a on the windward eastern side of the Andes at 41°S (e.g. Kummerow et al, 2000, New et al, 2002, TRMM, 2007, Bookhagen and Strecker, 2008. In the north the prevailing humid trade winds and the low-level Andean Jet from the east and northeast are blocked by the Andean topography.…”
Section: Climatic Settingmentioning
confidence: 99%
“…The antiquity of most of these plateaus suggests that they erode through parallel retreat with somewhat constant topographic profiles. These large topographic gradients often result in orographic precipitation on the escarpment (see, e.g., Bookhagen and Strecker, 2008). Since chemical weathering is at least partially dependent on water supply (see, e.g., White and Blum, 1995a), regolith formation is also likely to be enhanced on the plateau, especially during wet phases.…”
Section: Introductionmentioning
confidence: 99%
“…Th e eastern side receives annual rainfall amounts of > 3500 mm 2 and experiences active shortening and thrusting 3 , whereas the western side is one of the driest places on Earth and is deformed by longwavelength warping 2 -4 . Th e mechanisms, which acted to create this structure are, however, contested 5,6 .…”
mentioning
confidence: 99%