00000nam 2200000zi 4500 9.889317 CaOODSP 20221107172241 m o d f cr bn||||||||| 200709s1974 oncb o f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- En32-18/1974E-PDF Kimmett, Dale R., author. Available sources of current data within Central Region / Dale Kimmett, Regional Tidal Office, Central Region. [Ottawa] : [Canadian Hydrographic Service, Marine Sciences Branch, Department of the Environment], 1974. 1 online resource (46 pages) : maps text txt rdacontent computer c rdamedia online resource cr rdacarrier Cover title. Digitized edition from print [produced by Environment and Climate Change Canada]. "During the past five years, there has been an increasing role played by the container ships and “super tankers” in the shipping industry and a breathtaking increase of recreational boating on the Great Lakes system. These changing trends have necessitated a further consideration of information provided to these new customers by the Canadian Hydrographic Service through its navigation charts and numerous publications"--Background, page 1. Hydrographic surveying Canada Information resources. Limnology Canada Information resources. Levés hydrographiques Canada Sources d'information. Limnologie Canada Sources d'information. Canadian Hydrographic Service, issuing body. PDF 1.55 MB https://publications.gc.ca/collections/collection_2020/eccc/en32/En32-18-1974-eng.pdf