Specific activities of dissolved radon-222 collected from grab samples during STING I cruise AE2305 on R/V Atlantic Explorer and STING II cruise EN704 on R/V Endeavor in the Gulf of Mexico from Feb to Jul 2023

This dataset includes the specific activities of dissolved radon-222 collected from grab samples during STING I cruise AE2305 on R/V Atlantic Explorer (February to March 2023) and STING II cruise EN704 on R/V Endeavor in the Gulf of Mexico (June to July 2023). Additional data collected from underway samples during STING II are provided in the related dataset. This project investigates how boundary sources, including rivers and submarine groundwater discharge, deliver important nutrients and metals to the coastal ecosystems of the West Florida Shelf. Here, dissolved radon-222 has been measured to trace boundary sources of nutrients and metals entering the West Florida Shelf, including submarine groundwater discharge.本数据集涵盖2023年2月至3月期间，搭载“大西洋探索号”（R/V Atlantic Explorer）执行STING I航次AE2305，以及2023年6月至7月在墨西哥湾搭载“奋进号”（R/V Endeavor）执行STING II航次EN704时，通过抓取采样获取的溶解态氡-222（dissolved radon-222）比活度数据。STING II航次期间通过走航采样采集的补充数据，已收录于本项目的关联数据集。 本研究旨在解析包括河流与海底地下水排泄（submarine groundwater discharge）在内的边界源，如何向西佛罗里达陆架（West Florida Shelf）沿岸生态系统输入关键营养盐与金属物质。本次研究通过测定溶解态氡-222，示踪进入西佛罗里达陆架的营养盐与金属物质的边界来源，其中涵盖海底地下水排泄过程。