Water column nitrate+nitrite d15N and d18O from samples collected during R/V Pelican and R/V F.G. Walton Smith cruises in the Gulf of Mexico and Florida Straits between 2011 and 2018

<p>This data set includes water column nitrate+nitrite d15N and d18O measurements from the Gulf of Mexico and Florida Straits. These measurements were used to address whether Mississippi River nitrate is entrained in Loop Current waters and potentially exported from the Gulf of Mexico to the North Atlantic.&nbsp; Water samples were collected during R/V Pelican and R/V F.G. Walton Smith cruises in the Gulf of Mexico and Florida Straits between 2011 and 2018.</p>

本数据集收录墨西哥湾与佛罗里达海峡的水柱硝态氮+亚硝态氮氮同位素比值(δ¹⁵N)及氧同位素比值(δ¹⁸O)测定结果。该批测定数据被用于探究密西西比河输入的硝态氮是否会被裹挟进入墨西哥湾环流（Loop Current）水域，以及该部分硝态氮是否有可能从墨西哥湾输出至北大西洋海域。水样采集工作由科考船R/V Pelican号与R/V F.G. Walton Smith号于2011至2018年间，在墨西哥湾及佛罗里达海峡的航次中完成。