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.SEGY File Extension

A .SEGY file is a SEG-Y Data File, created by SEG Technical Standards Committee.

Open with Geopsy. Available for Linux, Windows, and Mac.

What is a .SEGY file?

A .SEGY file is a type of data file specifically used in the field of geophysics. It is saved in the SEG-Y format, which stands for the Society of Exploration Geophysicists Y format. This format is designed to store complex geophysical data. The data in a SEGY file typically includes important information such as the coordinates of seismic waves that have been reflected back to the surface, the elevation of the surface, and the depth of water, if applicable.

In addition to this geophysical data, SEGY files also contain metadata. Metadata is essentially data about data. In the case of SEGY files, this includes details like when the data was collected (date and time), the geographic projection and methods used, the specific type of instruments employed in gathering the data, and details about the seismic waves such as their frequency and the duration of the wave sweep.

SEGY files are crucial for professionals who work in fields like oil and gas exploration, mining, and geology, as they help in mapping and understanding the properties beneath the Earth's surface. These files are generated by instruments that send energy waves into the subsurface of the Earth and then record the waves that are reflected back. This process is somewhat similar to how sonar works in water.

To view and analyze the data contained in SEGY files, specific software programs are required. Some of the programs that can open these files include Geopsy, Seismic SEGY Toolkit, and kogeo. These tools help users to visualize and interpret the data for further analysis.

The SEG-Y format has a long history, having been first published in 1975. Over the years, it has been updated and refined to include more features and to accommodate advances in technology and methods in geophysical research. Sometimes, SEGY files might also be found with the file extension .SGY, which is an alternative extension used for these data files.

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