<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">McDuffee, K.</style></author><author><style face="normal" font="default" size="100%">Druffel, E. R. M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Daily variability of dissolved inorganic radiocarbon in Sargasso Sea surface water</style></title><secondary-title><style face="normal" font="default" size="100%">Marine Chemistry</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Mar. Chem.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">1705</style></keyword><keyword><style  face="normal" font="default" size="100%">alkalinity</style></keyword><keyword><style  face="normal" font="default" size="100%">c-14</style></keyword><keyword><style  face="normal" font="default" size="100%">carbon</style></keyword><keyword><style  face="normal" font="default" size="100%">carbon-13</style></keyword><keyword><style  face="normal" font="default" size="100%">daily time-series of surface</style></keyword><keyword><style  face="normal" font="default" size="100%">dissolved inorganic carbon</style></keyword><keyword><style  face="normal" font="default" size="100%">Keck / AMS Lab</style></keyword><keyword><style  face="normal" font="default" size="100%">north-atlantic</style></keyword><keyword><style  face="normal" font="default" size="100%">ocean</style></keyword><keyword><style  face="normal" font="default" size="100%">pacific</style></keyword><keyword><style  face="normal" font="default" size="100%">radiocarbon</style></keyword><keyword><style  face="normal" font="default" size="100%">Research</style></keyword><keyword><style  face="normal" font="default" size="100%">ventilation</style></keyword><keyword><style  face="normal" font="default" size="100%">water chemistry</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">08/2007</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1016/j.marchem.2007.05.003</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">3-4</style></number><volume><style face="normal" font="default" size="100%">106</style></volume><pages><style face="normal" font="default" size="100%">510-515</style></pages><isbn><style face="normal" font="default" size="100%">0304-4203</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Surface water samples were collected daily in June 2000 at a site in the Sargasso Sea to observe variability of Delta C-14 values in dissolved inorganic carbon (DIC). Temperature, salinity, DIC concentration, alkalinity, and delta C-13 and Delta C-14 values of DIC were measured in the samples. Ten Delta C-14 measurements averaged 81 +/- 8%. and had a range of 24 parts per thousand over the sixteen-day cruise. Delta C-14 values were more variable during the latter half of the cruise. Salinity and temperature measurements in the mixed layer throughout the cruise indicate that there were changes in water mass that occurred at our site. We conclude that the daily range of DIC Delta C-14 values in the surface ocean at our site is several times greater than the annual change in surface waters in the Sargasso Sea during the last two decades of the 20th century. This points to the importance of obtaining multiple measurements of the surface ocean to adequately define the true variability of DIC Delta C-14 measurements. (c) 2007 Elsevier B.V. All rights reserved.</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><accession-num><style face="normal" font="default" size="100%">WOS:000249600600009</style></accession-num></record></records></xml>