High-resolution in situ seawater temperature in coral reefs of Tayrona National Natural Park, Colombian Caribbean, 2010-2013

The Tayrona National Natural Park (TNNP) is located at the northeastern Colombian coast between 11°17' - 11°22' N and 73°53' - 74°12' W. Despite of its relatively small coastline of only ca. 40 km, TNNP belongs to the most biodiverse areas of the tropical and subtropical Atlantic. Along its rocky coastline with capes, inlets and bays, the TNNP is home to a variety of seagrass beds, mangroves and coral communities. The TNNP region experiences strong seasonal variations through the alternation of rainy and dry seasons, and the occurrence of a wind-driven coastal upwelling which can lower the seawater temperature by up to 10°C (from 30 to 20°C). Seawater temperature is crucial for a range of biological (e.g. primary productivity) and physical ( e.g. gas solubility) processes in marine ecosystems. Increases in seawater temperature may cause coral bleaching events which are currently occurring more frequently and with higher intensity. Here, we provide the most comprehensive data set on high-resolution in situ seawater temperature continuously measured by calibrated HOBO TidBit v2 or HOBO Pendant temperature loggers with temporal intervals of 5 min between October 2010 and February 2013 in the four TNNP bays (Chengue, Gayraca, Neguanje, and Cinto) and at sites with different degree of exposition to winds, waves and water currents (exposed vs. sheltered sites) within each bay. Loggers were attached to the reef structure at 10 m water depth at all sites during the entire study period. In situ seawater temperature data is also given as daily means.

泰罗纳国家自然公园（Tayrona National Natural Park, TNNP）位于哥伦比亚东北海岸，地理坐标为北纬11°17′—11°22′、西经73°53′—74°12′。尽管其海岸线仅约40千米，规模相对有限，但该公园仍属于热带与亚热带大西洋海域中生物多样性最为丰富的区域之一。公园拥有多岩石的海岸线，其间分布着海角、水湾与海湾，孕育了多样的海草床、红树林与珊瑚群落。泰罗纳国家自然公园所在区域存在显著的季节变化：干湿季交替更迭，同时伴有由风力驱动的近岸上升流，该现象可使海水温度最高降低10℃（从30℃降至20℃）。海水温度对海洋生态系统中的诸多生物过程（如初级生产力）与物理过程（如气体溶解度）均至关重要。海水温度升高可能引发珊瑚白化事件，当前此类事件的发生频率与强度均呈上升趋势。在此，我们发布了一套最为全面的高分辨率原位（in situ）海水温度数据集：2010年10月至2013年2月期间，研究团队在泰罗纳国家自然公园的4处海湾（成格湾、加亚尔卡湾、内万赫湾与辛托湾）内的不同暴露位点（即受风浪、水流影响程度不同的暴露位点与遮蔽位点），使用经过校准的HOBO TidBit v2型与HOBO Pendant型温度记录仪，以5分钟的时间间隔连续采集原位海水温度数据。在整个研究周期内，所有测点的温度记录仪均固定于水深10米处的珊瑚礁结构上。数据集同时提供原位海水温度的日均值数据。