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Produced by the National Oceanic and Atmospheric Administration (NOAA) under the National Ocean Service, the document serves as a critical reference for safe maritime navigation. It features soundings measured in feet, a logarithmic speed scale for navigational calculations, and information regarding safety updates derived from Notices to Mariners (NM) and Local Notices to Mariners (LNM). The chart details the geographical layout of the bay, including North San Diego Bay, South San Diego Bay, and surrounding areas such as Coronado and Lindbergh Field. It emphasizes the importance of utilizing current chart updates available through the official nautical charts website for all navigational purposes. The professional documentation adheres to rigorous standards for maritime accuracy, providing essential guidance for vessels operating within this coastal region, ensuring that navigators are equipped with the most precise and reliable topographical and depth information available for safe harbor 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does the chart 18773 represent?","Question",{"text":109,"@type":110},"Chart 18773 is a nautical chart of San Diego Bay, California, published by the National Oceanic and Atmospheric Administration (NOAA) for safe maritime navigation.","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"What unit of measurement is used for soundings?",{"text":114,"@type":110},"Soundings on this chart are measured in feet.",{"name":116,"@type":107,"acceptedAnswer":117},"How can mariners obtain the latest corrections for this chart?",{"text":118,"@type":110},"Mariners can access chart updates by consulting the weekly Notice to Mariners (NM) and Local Notice to Mariners (LNM), or by visiting the official nautical charts website at nauticalcharts.noaa.gov.","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},563934,1792027243,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":9,"language":136,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":137,"faqs":138,"seo_title":139,"seo_description":61,"update_tm":140,"read_time":4},1099513958607,"https://ap-avatar.wpscdn.com/avatar/100002390cf8733938c?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778829742770036399","LOGARITHMIG SPEED SCALE234568901520    25  30     40    50  60  \nTo ind SPEED,pace one point ot div ders cn distance run sin any Jrr)ard-re cher o1 minutes run.withou charging d vider spread.paseSOUNDINGS IN FEET4SrdEd May/12  \nCorrected through NM May.05/1?CAUTION18773Corrected tirough I NM Apr.24/12This chart has been sorrected frpri the Notice 70 Mariners{NM)published weekly by the Nat oral Geospat al-IntellicenceThis nautical chart has boon dosignod to promote safz navigcion.Tro NazicnalSOUNDINGS IN FEETPLblished at Washington D.CSCALC 1:12,000J.S.DEPARTMENT OF COMMERCENau-ical M 98San Diego BayAgency and the Local Notice to Mariners (LNM)issuec periocicaly by each U.S Coast Guard district to zhe da:es shownn029n SerwicP Pnc IeceLIGers toSL bmit cCPrectio06 :adrl ticns rr cnrment.torNATIONAL OCCANIC AND ATMOSPHCRICADMINISTRATIONthelower let hand corner.Char:updates conected from otize to Mariners publishec afer che da:es shown in the lower leftimproving this chart to the Chief.Marine Chart Division (N/G52j,Nationel Ocean0ILL                           10SOUNDINGS IN FEET-SCALE 1:12.00018773hand sorncr are avilble dt raurialcharts.rDaa.gov.Service.NOAA,Silver Spring.Maryland 2091C-3282NATIONAL OCEAN SERVIC  \nIAII10MS  \nME⁻ERS20  \n50  \nCOAST SURVEY00  \n1000","cbCaiipEOfB1HlqJ","https://ap.wps.com/l/cbCaiipEOfB1HlqJ","pdf",7466503,"English","# Chart Specifications\n## Navigational Data and Scales\n# Maintenance and Updates\n## Notice to Mariners Procedures\n## Chart Correction Guidelines","[{\"question\":\"What does the chart 18773 represent?\",\"answer\":\"Chart 18773 is a nautical chart of San Diego Bay, California, published by the National Oceanic and Atmospheric Administration (NOAA) for safe maritime navigation.\"},{\"question\":\"What unit of measurement is used for soundings?\",\"answer\":\"Soundings on this chart are measured in feet.\"},{\"question\":\"How can mariners obtain the latest corrections for this chart?\",\"answer\":\"Mariners can access chart updates by consulting the weekly Notice to Mariners (NM) and Local Notice to Mariners (LNM), or by visiting the official nautical charts website at nauticalcharts.noaa.gov.\"}]","San Diego Bay Nautical Chart - 18773 | PDF",1791839406]