• Uncategorized

    Create a Universal Plotting Sheet

    There may be times when a navigation chart showing contours along the coast and/or navigational hazards is not needed. This is generally the case with celestial navigation, however, you may also find times while piloting along a coast that this is the case. An example might be that you prefer to keep your DR and Fix plotting off of the navigation chart in order to keep it more readable. Using a Universal Plotting Sheet allows you this flexibility. Universal Plotting Sheets may be purchased in pads of 50, or they may be downloaded from the internet. Generally, they will include a compass rose in the center, three pre-drawn latitude lines,…

    Comments Off on Create a Universal Plotting Sheet
  • Uncategorized

    Pilot Charts

    What Are Pilot Charts? Pilot Charts provide the navigator with averages. Averages concerning prevailing winds and currents, air and sea temperatures, wave heights, ice, visibility, barometric pressure, and weather conditions. There are five volumes of Pilot Charts, each being its own publication, and each covering a specific geographic region. Each publication is actually a compilation of twelve individual pilot charts, one for each month of the year. Pilot charts are intended to aid the navigator in selecting the fastest and safest routes with regards to the expected weather and ocean conditions. Pilot Charts are not intended to be used for navigation, however, they are invaluable in planning stages of a…

  • Uncategorized

    Online Glossaries and Resources

    Navigation Publications Office of Coast Survey (NOAA) – https://nauticalcharts.noaa.gov/ USCG Navigation Center –  https://www.navcen.uscg.gov/ National Geospatial Agency  –  https://msi.nga.mil/ NGA Publications https://msi.nga.mil/Publications NOAA Tides and Currents Interactive Tide & Current Map https://tidesandcurrents.noaa.gov/ Tide Stations https://tidesandcurrents.noaa.gov/tide_predictions.html Current Stations https://tidesandcurrents.noaa.gov/noaacurrents/Regions NOAA Departments Important to Marine Weather National Weather Service (NWS) https://www.weather.gov/ Ocean Prediction Center (OPC) https://ocean.weather.gov/ National Hurricane Center (NHC) https://www.nhc.noaa.gov/ Storm Prediction Center (SPC) https://www.spc.noaa.gov/ National Data Buoy Center (NDBC) https://www.ndbc.noaa.gov/ Glossaries National Weather Service Glossary https://w1.weather.gov/glossary/ American Meteorological Society Glossary http://glossary.ametsoc.org/wiki/Main_Page Data Sources North Carolina Climate Office Climate Education https://climate.ncsu.edu/edu/home Ocean Prediction Center Terminology and Weather Symbols https://ocean.weather.gov/product_description/keyterm.php National Weather Service “How to Read Surface Weather Maps” https://www.weather.gov/jetstream/wxmaps Wyoming Department…

    Comments Off on Online Glossaries and Resources
  • Uncategorized

    Privacy Policy

    Who we are Our website address is: https://tdgil.com. What personal data we collect and why we collect it Comments When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection. An anonymized string created from your email address (also called a hash) may be provided to the Gravatar service to see if you are using it. The Gravatar service privacy policy is available here: https://automattic.com/privacy/. After approval of your comment, your profile picture is visible to the public in the context of your comment. Media If you upload images to…