Welsh, J. (1830) The River Tamar van Diemens Land, 1830, UK Hydrographic Office, London, Navigation Chart for the River Tamar.
http://nla.gov.au/nla.map-nk2456-171

has been cited by the following article:

• TITLE: Tidal Heights in Hyper-Synchronous Estuaries

  AUTHORS: Ian M. Kidd, Shuhong Chai, Andrew Fischer

  KEYWORDS: Height Datum, Mean Sea Level, Mean Tide Level, Estuary, Digital Elevation Model, Global Warming, Sea Level Rise

  JOURNAL NAME: Natural Resources, Vol.5 No.11, August 19, 2014

  ABSTRACT: Inconsistencies between datasets are examined with reference to flood tidal elevations in the Tamar River estuary, Tasmania Australia. Errors in a 30-year-old commonly cited dataset have been perpetuated in subsequent publications and datasets, and a clarification is herein provided. Elevation of the flood tidal wave as it propagates the estuary is evident in mean tide level and mean sea level, although the analysis is compromised by the temporal differences of the datasets. As sea levels rise due to global warming, the importance of accurate on-going sea level data in any estuary will become more acute.