Atmospheric deposition of nutrients to the North Atlantic Basin

Autor: Patricia K. Quinn, Hiram Levy, Joseph M. Prospero, Jennie L. Moody, James N. Galloway, Frank Dentener, K. J. Barrett, Thomas M. Church, Robert A. Duce
Rok vydání: 1996
Předmět:
Zdroj: Nitrogen Cycling in the North Atlantic Ocean and its Watersheds ISBN: 9789401072939
DOI: 10.1007/978-94-009-1776-7_2
Popis: Atmospheric chemical models are used to estimate the deposition rate of various inorganic oxides of nitrogen (NOy), reduced nitrogen species (NHx) and mineral dust to the North Atlantic Ocean (NAO). The estimated deposition of NOy to the NAO (excluding the coastal ocean) and the Caribbean is 360 × 109 Moles-N m-2 yr-1 (5.0 Tg N); this is equivalent to about 13% of the estimated global emission rate (natural and anthropogenic) and a quarter of the emission rate from sources in North America and Europe. In the case of NHx, 258 Moles-N m-2 yr-1 (3.6 Tg N) are deposited to the NAO and the Caribbean; this is about 6% of the global continental emissions. There is relatively little data on the deposition rate of organic nitrogen species; nonetheless, this evidence suggests that concentrations and deposition rates are comparable to those for inorganic nitrogen.
Databáze: OpenAIRE