Geology topics

E.J. Kennedy

Publications and source records attributed to E.J. Kennedy.

4 recordsLinked to original sources

USGS1990

Levels at streamflow gaging stations

This manual establishes the surveying procedures for (1) setting gages at a streamflow gaging station to datum and (2) checking the gages periodically for errors caused by vertical movement of the structures that support them. Surveying terms and concepts are explained, and procedures for testing, adjusting, and operating the instruments are described in detail. Notekeeping, adjusting level circuits, checking gages, summarizing results, locating the nearest National Geodetic Vertical Datum of 1929 bench mark, and relating the gage datum to the national datum are also described.

Techniques of Water-Resources Investigations↗

USGS1988

Levels at streamflow gaging stations

This manual establishes the surveying procedures for setting gages at a streamflow gaging station to datum and for checking them periodically for errors caused by vertical movement of the gage-supporting structures. The surveying terms and concepts used are explained; and the details of testing, adjusting, and operating the instruments are outlined. Notekeeping, adjusting level circuits, checking gages, summarizing results, locating the nearest National Geodetic Vertical Datum of 1929 bench mark, and relating the gage datum to the national datum are described.

Open-File Report↗

USGS1983

Computation of continuous records of streamflow

Records of continuous streamflow, published in the U.S. Geological Survey annual Water Data Reports for the States and territories, are computed from field data, mainly discharge measurements and recorder charts or tapes. This manual describes the computation procedures used and some details of related field operations. It was compiled mostly from unpublished Water Resource Division district manuals edited and supplemented to emphasize digital-recorder and associated computer use. Methods used primarily for graphic-recorder gaging stations and non-recording gages are also included. Reference is made to other publications for some of the more specialized or unusually complex procedures.

Techniques of Water-Resources Investigations↗

USGS1973

Handbook for Federal Insurance Administration: Flood-insurance studies

A flood insurance study, made for the Federal Insurance Administration (FIA) of the Department of Housing and Urban Development (HUD) is an analysis of flood inundation frequency for all flood plains within the corporate limits of the community being studied. The study is an application of surveying, hydrology, and hydraulics to determine flood insurance premium rates. Much of the surveying needed can be done by private firms, either by ground methods or photogrammetry. Contracts are needed to let large surveys but purchase orders can be used for small ones. Photogrammetric stereo models, digital regression models, and step-backwater models are needed for most studies. Damage survey data are not involved.

Open-File Report↗