TY - RPRT TI - Short-term sandbar variability based on video imagery: Comparison between Time-Average and Time-Variance techniques AU - R.M.C. Guedes AU - L.J. Calliari AU - K. T. Holland AU - N.G. Plant AU - P.S. Pereira AU - F.N.A. Alves PY - 2011 DO - 10.1016/j.margeo.2011.09.015 UR - https://pubs.usgs.gov/publication/70034510 ID - 70034510 ER -