i was searching to acquire past sea level data and i found that most of the area throughout globe have more than 6m sea level. why is this? if i want to model a coastal area, i should consider this also? or just 0 as msl?
G’morning Razi,
Please note that the PSMSL level data has its datum system and all are referred to the RLR (revised local reference) .
Using regional sea level data from a tide gauge in your area you will refer the data to the datum of the instrument, i.e. a known bench mark OR to the zero level of the instrument, i.e. you will deal with the instrument data as total elevation above the sensor of your gauge.
Hai @tarek, how can i use this data in to my model if im using elevation from Srtm dem?
I believe using SRTM DEM will lead you to specify your RLR first and then refer your sea level data by addition/subtraction to the appropriate datum
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