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OpenSeaMap is a software project collecting freely usable nautical information and geospatial data to create a worldwide nautical chart.This chart is available on the OpenSeaMap website, and can also be downloaded for use as an electronic chart for offline applications.
This is a list of places on land below mean sea level. Places artificially created such as tunnels, mines, basements, and dug holes, or places under water, or existing temporarily as a result of ebbing of sea tide etc., are not included. Places where seawater and rainwater is pumped away are included.
Depths are measured from the chart datum, which is related to the local sea level. The chart datum varies according to the standard used by each national Hydrographic Office . In general, the trend is towards using lowest astronomical tide (LAT), the lowest tide predicted in the full tidal cycle, but in non-tidal areas and some tidal areas Mean ...
2006-12-11 01:47 Lentisco 731×623× (28240 bytes) Map of Glenelg River, Victoria. Constructed by 'Lentisco' 10/12/2006 Constructed by 'Lentisco' 10/12/2006 Captions
A common and relatively straightforward mean sea-level standard is instead a long-term average of tide gauge readings at a particular reference location. [1] The term above sea level generally refers to the height above mean sea level (AMSL). The term APSL means above present sea level, comparing sea levels in the past with the level today.
Amid repeated storms and sea level rise, ... New Bay Area maps show hidden flood risk from sea level rise and groundwater. Rosanna Xia. January 17, 2023 at 7:00 AM.
ASL – above sea level [4] FAMSL – feet above mean sea level [5] FASL – feet above sea level [6] MAMSL – metres above mean sea level [5] MASL – metres above sea level [5] [6] MSL – mean sea level [7] For elevations or altitudes, often just the abbreviation MSL is used, e.g., Mount Everest (8849 m MSL), or the reference to sea level ...
Another, more recent lake-effect snowstorm of epic proportions dumped nearly 7 feet of snow across parts of New York in November 2022. Orchard Park received the highest storm total snowfall with a ...