weir3a5.broadcrest()
the procedures of Hulsing, Harry, 1967, Measurement of peak discharge at dams by indirect methods: U.S. Geological Survey Techniques of Water-Resources Investigations, Book 3, Chapter A5, 29 p., http://pubs.usgs.gov/twri/twri3-a5/weirbos.broadcrest()
the procedures of Bos, M.G., 1989, Discharge measurement structures: International Institute for Land Reclamation and Improvement Publication 20, Wageningen, The Netherlands, 401 p. http://content.alterra.wur.nl/Internet/webdocs/ilri-publicaties/publicaties/Pub20/pub20.pdfNA
is the empty set and will error out.
weir.broadcrest(..., type=c("TWRI3A5", "BOS", NA))
data.frame()
is returned.
weir3a5.broadcrest
, weirbos.broadcrest