Tables of Dissolved Oxygen Saturation Values Date: Thu, 01 Oct 1998 13:25:13 -0400 From: Nana Frye
Reply-To: "Nana L Frye, Secretary (OA), Reston, VA " Organization: U.S. Geological Survey To: "E - All WRD Employees" CC: " WRD Archive File, " Subject: OWQ Tech Memo 9901--WATER QUALITY--Tables of Dissolved Oxygen Saturation Values In Reply Refer To: Mail Stop 412 October 1, 1998 OFFICE OF WATER QUALITY TECHNICAL MEMORANDUM No. 99.01 Subject: WATER QUALITY--Tables of Dissolved Oxygen Saturation Values Quality of Water Branch Technical Memorandum 81.11, amended by 81.15, described computer program K321A and catalogued procedure DOTABLES, which were available on the U.S. Geological Survey's (USGS) mainframe computer. This procedure was used to produce tables of dissolved ygen (DO) saturation values as a function of temperature and barometric pressure, as well as tables of salinity correction factors that users could use to correct DO saturation values for the effect of dissolved solids. The procedure DOTABLES has been ported to the Data General UNIX platform and is available on the Hydrologic Applications System Soft- ware (HASS) web page at: http://hassrvares.er.usgs.gov/dotables.html This interactive program will produce tables of saturation DO values to the nearest 0.1 or 0.01 milligrams per liter and salinity correction factors over user-defined ranges of temperature, barometric pressure, and specific conductance. The maximum temperature is 35 degrees Celsius and maximum specific conductance is 76,000 microsiemens per centimeter (uS/cm). The tables available from the DOTABLES program are the only ones approved by the USGS for routine field use. Tables provided by instru- ment manufacturers or from any other source should not be used unless they are the same as the USGS tables. Janice R. Ward /s/ Acting Chief, Office of Water Quality Distribution: All WRD Employees Key words: water quality, data handling, dissolved oxygen This memorandum amends Quality of Water Branch Technical Memorandum No. 81.11.