Sea Level Monitor

Hellenic National Tsunami Warning Centre (HL-NTWC) monitors Sea Level through a network of more than 20 tide gauges located all around Greece..

All data are stored in a database and can be displayed in different formats using this web interface.

The site shows theorical Sea Levels calculated by an algorithm and compares them with real Measurements from each tide gauge in the Database.

System features

• Measurements Station Map.

• Measurements Station List.

• Station Search and filter.

• Stations data and information.

• Tides measures and tide estimated values charts.

• Stations state of work.

• Harmonics and properties.

• Data extraction in text format.

Acknowledgement

• This site was developed by European Commission Joint Research Centre - ISPRA - Space, Security and Migration Directorate (JRC).

• Stations code named JRC or IDSL have been installed in the frame of a collaboration between the Joint Research Centre and the National Observatory of Athens with the financial contribution of the European mechanism for Civil Protection (ECHO-MIC) and the Joint Research Centre.

Data Use and Citation

Data received from the National Observatory of Athens' Hellenic National Tsunami Warning Centre (HL-NTWC) are licensed under a Creative Commons Attribution 4.0 International licence (CC BY 4.0).

You are free to:

• Share — copy and redistribute the material in any medium or format.

• Adapt — remix, transform, and build upon the material for any purpose, even commercially.

Under the following terms:

• Attribution — You must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

  Depending on the product source, we request that the following statements be used when citing, copying, or reprinting data:

  NOA Products
  • Acknowledgement - Data Available from the National Observatory of Athens
  • Questions - Questions concerning the use or redistribution of NOA/HL-NTWC data should be directed to: hl_ntwc@noa.gr

• No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the licence permits

Notices:

• You do not have to comply with the licence for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.

• No warranties are given. The licence may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.