.lsd file format

Introduction

The .lsd or Locsmith Seismic Data file format is an ASCII format used to store all kinds of input format usable for inversion into velocity models: travel times, arrival times, azimuths, emergence angles, slowness, event and station data.

The .lsd format is a human readable ASCII format which is based on the Keyword Line concept used by the .clr format of the Travel Time Toolbox (Knapmeyer, 2004 & 2005). The .lsd format is a line oriented format: Information is subdivided into blocks which are on separate lines.

Information is tagged by Keywords and Modifiers which define the type of information given in a line. This allows a very flexible file formatting.

The format definition is somewhat lengthy, but the resulting syntax and structure is quite simple and straight forward.


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