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USGS update: north/south connectivity, discharge trends and salinity patchiness at Great Salt Lake
Summary
USGS scientists reported recent increases in lake elevation since fall but continuing differences between north and south arms; flow through the causeway has oscillated with seasonal discharge directions, and Lakeside Reach shows very high local salinity. Monitoring efforts to produce continuous discharge data are underway.
Christine Ramsey of the U.S. Geological Survey presented hydrology and salinity monitoring across the Great Salt Lake, including elevation changes, causeway flows and site-specific salinity measurements.
Ramsey said lake elevation rose about 1.2–1.4 feet from seasonal lows in the north and south arms but the south arm remains lower relative to last year. She reviewed time series that show an elevation difference between arms narrowed beginning last fall and is currently about 0.9 foot. Causeway flows have been bi-directional; the team observed intermittent north-to-south…
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