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Original Articles

The Na/CL ratio in rainwater and the seasalt chloride cycle

Pages 254-262 | Received 19 Sep 1988, Accepted 04 Sep 1989, Published online: 18 Jan 2017
 

Abstract

Possible seasalt and excess component sources for a variable Na/CL ratio in rainwater have been discussed. It is shown that a separation of seasalt Na and Cl takes place during transport from sea to continent, leading to increased seasalt Na/CL ratio (> 0.86) in continental rain, which has to be regarded as the seasalt reference figure. The possible consequences for anthropogenic excess Cl deposition are discussed for the GDR. The maritime HCl degassing is assessed to be of the order of 200 kt yr-1. Based on budget calculations, different Cl fluxes (emission, deposition, river run-off) have been estimated on a global scale.