10Be erosion rates and riverine alkalinity concentration globally

DOI

The erosional influence on terrestrial alkalinity generation globally has been discussed over the last decades. In regional studies, long-term catchment-average denudation rates, determined from the concentration of the cosmogenic nuclide 10Be, have proven to be a powerful tool to quantify how physical erosion rates impact chemical weathering rates. Despite this, little research has been done relating 10Be-derived physical erosion rates with riverine alkalinity concentrations at a global scale. Our dataset aims to fill this gap by matching 10Be erosion rates with alkalinity measurements from 233 locations on six continents, covering latitudes from 44 °S to 51 °N. The locations of published 10Be erosion rates were extracted from the OCTOPUS database (doi:10.5194/essd-10-2123-2018) and either assigned alkalinity concentrations from published manuscripts, the GLORICH database (doi:10.1594/PANGAEA.902360), governmental agencies, or sampled ourselves. Our dataset comprises erosion rates spanning 4 orders of magnitude (2-9829 mm ka-1) and single and time-series measurements of alkalinity (1-3940 measurements per location) covering a large concentration range (4-4626 μmol L-1). We complemented the point sampling measurements of erosion rate and alkalinity concentration with the spatial description of runoff, lithology, temperature, precipitation, permanent snow and ice cover, forest cover, soil thickness and area affected by dams, of the respective catchment upstream from the erosion rate measurement location.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.940522
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Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.940522
Provenance
Creator Lehmann, Nele; Mears, Chantal; Thomas, Helmuth
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2022
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 10696 data points
Discipline Earth System Research
Spatial Coverage (-116.323W, -43.577S, 170.996E, 51.492N); Black Forest; Upper Ganges; Central-East; Swiss Alps; Gulf of Lion; Central Eastern Alps; Nepalese Himalaya; Western French Alps; Eastern; Appalachian Piedmont; Central; Hsueshan Range; Feldberg; Apennines; Cenral Andes; Western Alps; Rhenish Massif; West Coast, Soutern Island; Central Range; Santa Catarina; Southern Espinhaco Range; Bernese Oberland; Eastern Cape; Marsyandi Basin; Eastern Alps; South Cameroon; Middle Europe; Rio de Janeiro; Napo Riv., Upper Amazon Basin; Rhine catchment; Namche Barwa-Gyala Peri Massif; Po floodplain; Danube catchment; Emilia Apennines; Northwest; Himalaya; Central Idaho Mts.; Western Central Alps; Appalachian Mts.