Stages and Discharges of the Mississippi River and Tributaries and other Watersheds in the New Orleans District for 1990
ARMY ENGINEER DISTRICT NEW ORLEANS LA CORPS OF ENGINEERS
Pagination or Media Count:
This Pamphlet contains the results of stage and discharge observations made on the Mississippi River, its outlets and tributaries, and other streams and waterways in the US Army Engineer District, New Orleans, during the 1990 calendar year. In addition to the records of this district, there are contained herein gage and discharge data furnished by the us geological survey, and gage records furnished by the National Oceanic and Atmospheric Administration. Gages operated by the New Orleans District are generally inspected at least once each year. The datum used is that of the 1929 National Geodetic Vertical Datum by the National Geodetic Survey. Gages are being adjusted to agree with benchmark changes also furnished by the National Geodetic Survey. Gage readings are checked against inspection reports and comparative hydrographs and are corrected where the need is indicated. Stages are readings of water surface elevations expressed in feet above the zero or reference point of the gage. The reference point is referred to either National Geodetic Vertical Datum of 1929 NGVD or Mean Low Datum. Mean Low Gulf is 0.78 foot below NGVD. National Geodetic Vertical Datum of 1929 is used in Lieu of Sea Level Datum of 1929 MSL.
- Hydrology, Limnology and Potamology