Density and salinity data to validate an equation of state for hypersaline water in Great Salt Lake, Utah, 2021–2022

This U.S. Geological Survey (USGS) Data Release provides salinity and density data collected at Great Salt Lake (GSL), Utah monitoring locations during 2021?2022. Temperature, specific conductance, and dissolved oxygen were collected using an In-Situ AquaTROLL 600. Sample density was measured using an Anton Paar DMA 35Ex at 5� increments between 5� and 40� C. Practical salinity was measured at the University of Miami?s Rosenstiel School of Marine and Atmospheric Science using a Guideline Salinometer. These data were used to validate the equation of state for Great Salt Lake at salinities higher than the established range, 23?182 g/L (Naftz, et al, 2011). Data supports increasing the upper density range from 1.145 g/cm3 to 1.214 g/cm3. This increase allows for salinity monitoring up to 270 g/L and encompasses all (north and south arm) GSL waters.

本数据集为美国地质调查局（U.S. Geological Survey, USGS）发布的公开数据产品，包含2021年至2022年间在犹他州大盐湖（Great Salt Lake, GSL）监测点位采集的盐度与密度数据。水温、比电导率（specific conductance）与溶解氧（dissolved oxygen）采用In-Situ AquaTROLL 600型设备完成采集；样品密度采用安东帕DMA 35Ex型密度仪，在5℃至40℃的温度区间内以5℃为步长完成测定。实用盐度（practical salinity）的测定工作由迈阿密大学罗森斯蒂尔海洋与大气科学学院完成，采用Guideline型盐度计。本次采集的数据用于验证大盐湖在超出既往23~182 g/L盐度区间（Naftz等，2011）时的水体状态方程（equation of state），该数据支持将大盐湖的密度上限从1.145 g/cm³提升至1.214 g/cm³，此调整可将盐度监测上限拓展至270 g/L，并覆盖大盐湖全部南北湖区水体。