Saltwater Intrusion into the Valdivia River Estuary (40°S). Fondecyt 1171171

These data are derived from the project CONICYT/FONDECYT (grant number: 1171171) entitled "Seawater intrusions into the Valdivia-Tornagaleones estuarine system today and under future scenarios with increasing greenhouse-gas concentrations"

The first sheet corresponds to records every 5 minutes of salinity and depth derived from a CTD installed at the bottom of the Río Valdivia (73,278°W, 39,8511°S) from November, 22, 2017 to July, 31, 2018. The CTD’s conductivity sensor unfortunately was configured for the range 13 a 63 mS cm-1, meaning that only salinities above about 9 PSU, depending on the river’s bottom temperature could be measured.

The following sheets are hydrographic measurements, CTD casts, which were carried out along the central axes of the Valdivia river estuary between November 2017 and August 2018 just covering all four seasons of the year. CTD profiles were measured at 14 about equally spaced stations along the Valdivia river estuary during both, spring and neap tide periods of all seasons. The profiles were taken with a horizontally configured and mounted pumped Seabird 25 CTD, which allowed a slow sampling from close to the surface to close to the bottom. The raw data were processed following the manufactures guidelines and were averaged to a vertical resolution of 0.25 m. Only pressure and salinity (PSU) are available.

The dates of the individual short cruises involved were 29/11/2017 (sheet 2017_11_29_spring_season_neap_t), 06/12/2017 (sheet 2017_12_06_spring_season_spring), 11/01/2018 (sheet 2018_01_11_summer_season_neap_t), 01/02/2018 (sheet 2018_02_01_summer_season_spring), 08/05/2018 (sheet 2018_05_08_fall_season_neap_tid), 17/05/2018 (sheet 2018_05_17_fall_season_spring_t), 19/08/2018 (sheet 2018_08_19_winter_season_neap_t), 12/08/2018 (sheet 2018_08_12_winter_season_spring)

本数据集源自CONICYT/FONDECYT项目（项目编号：1171171），项目名称为《在温室气体浓度增加的未来情景下，今日及未来海水入侵瓦尔迪维亚-托尔纳加莱诺斯河口系统的状况》。该数据集的第一张表格记录了从2017年11月22日至2018年7月31日期间，在瓦尔迪维亚河底部（经度73,278°W，纬度39,8511°S）安装的CTD仪每5分钟一次的盐度和深度数据。遗憾的是，CTD的导电率传感器被配置在13至63毫西门子/厘米-1的量程内，这意味着只有当河流底部温度相应时，才能测量出约9 PSU以上的盐度。随后的表格包含了水文测量数据，即CTD抛射体测量，这些测量在2017年11月至2018年8月间对瓦尔迪维亚河口的中心轴线进行，涵盖了全年四个季节。在春季和农历小潮期间，所有季节的CTD剖面测量在瓦尔迪维亚河口沿14个大致均匀分布的站位进行。剖面测量采用水平配置和安装的Seabird 25 CTD进行，它允许从接近表面到接近底部进行缓慢采样。原始数据按照制造商的指南进行处理，并平均到0.25米的垂直分辨率。仅提供压力和盐度（PSU）数据。个别短途航行的日期分别为：2017年11月29日（表格2017_11_29_spring_season_neap_t）、2017年12月6日（表格2017_12_06_spring_season_spring）、2018年1月11日（表格2018_01_11_summer_season_neap_t）、2018年2月1日（表格2018_02_01_summer_season_spring）、2018年5月8日（表格2018_05_08_fall_season_neap_tid）、2018年5月17日（表格2018_05_17_fall_season_spring_t）、2018年8月19日（表格2018_08_19_winter_season_neap_t）和2018年8月12日（表格2018_08_12_winter_season_spring）。