USGS
Water Resources Applications Software

NCALC

Manning's n value calculation program


Information

Summary of NCALC

Version history

UNIX or DOS installation instructions (README file)

How to order U.S. Geological Survey printed documentation

How to register to receive software update and enhancement notices

Software

Selection of the following options preceded by a binary icon retrieves a compressed UNIX tar file or a self-extracting DOS executable. A README file containing installation instructions is included with each of the software distribution files. There are separate README files for the UNIX and DOS distributions.

The Free Software Foundation's gunzip is necessary to uncompress the UNIX tar files available below. However, some World Wide Web browsers automatically uncompress retrieved files. Thus, running gunzip as stated in the installation instructions may be unnecessary.

NCALC compiled for...

[BINARY ICON] Data General AViiON (59K)

[BINARY ICON] Sun SPARCstation (Solaris) (34K)

[BINARY ICON] IBM-compatible PC, 386 or higher with math coprocessor (183K)

[BINARY ICON] IBM-compatible PC, 386 or higher with math coprocessor (includes source) (196K)

NCALC source code for compilation under...

[BINARY ICON] UNIX (27K)

[BINARY ICON] DOS (45K)

The above software can also be accessed via anonymous FTP from water.usgs.gov in the /pub/software/surface_water/ncalc directory.

Documentation

How to order U.S. Geological Survey printed documentation

Jarrett, R.D., and Petsch, H.E., Jr., 1985, Computer program NCALC user's manual--verification of Manning's roughness coefficient in channels: U.S. Geological Survey Water-Resources Investigations Report 85-4317, 27 p.

Point of contact for NCALC:

U.S. Geological Survey
Hydrologic Analysis Software Support Program
437 National Center
Reston, VA 20192
(electronic mail: h2osoft@usgs.gov)

USGS Surface-Water Software Page
The URL for this page is http://water.usgs.gov/software/ncalc.html
This page is maintained by <h2osoft@usgs.gov>
Last modified: 29 Mar 2000