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USGS 374938122251801 SAN FRANCISCO BAY A NE SHORE ALCATRAZ ISLAND CA

PROVISIONAL DATA SUBJECT TO REVISION

This station managed by the Sacramento Projects Office.

Available Parameters Available Period
  
2003-11-06  2024-12-11
2003-11-06  2024-12-11
2023-08-07  2024-12-11
2023-08-07  2024-12-11
2023-08-07  2024-12-11
2010-10-01  2023-01-12
2021-10-13  2024-12-11
2022-10-20  2024-12-11
2012-10-01  2015-09-19
2010-10-01  2022-09-28







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
Most recent instantaneous value: 12.2 12-11-2024   12:00 PST
Graph of Temperature, water, degrees Celsius

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 44400 12-11-2024   12:00 PST
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 8.2 12-11-2024   12:00 PST
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter

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Dissolved oxygen, water, unfiltered, percent of saturation, [(2)]
Most recent instantaneous value: 92 12-11-2024   12:00 PST
Graph of Dissolved oxygen, water, unfiltered, percent of saturation, [(2)]

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Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll
Most recent instantaneous value: 2.7 12-11-2024   12:00 PST
Graph of Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)
Most recent instantaneous value: 6.1 12-11-2024   12:00 PST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [(2)]
 
-- Data temporarily unavailable for the time period specified --

Suspended sediment concentration, water, unfiltered, at a fixed point in stream, estimated by a regression equation with turbidity, milligrams per liter
Most recent instantaneous value: 13.9 12-11-2024   12:00 PST
Graph of Suspended sediment concentration, water, unfiltered, at a fixed point in stream, estimated by a regression equation with turbidity, milligrams per liter

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