Transcription of SEG Y rev 1Release 1
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SEG Y rev 1 Data Exchange format1 SEG Technical Standards Committee2 Release , May 2002 1 2001, Society of Exploration Geophysicist. All rights reserved. 2 Editors Michael W. Norris and Alan K. Faichney SEG Y rev 1 May 2002 iiContent 1. 1 2. 1 UNCHANGED 1 CHANGES FROM REV 0 TO REV 1 .. 1 1 CONTROLLING 1 1 3. SEG Y FILE STRUCTURE .. 2 RECORDING 2 FILE 3 NUMBER 3 VARYING TRACE 3 4 4. TEXTUAL FILE HEADER .. 4 5. BINARY FILE HEADER .. 6 6. extended TEXTUAL FILE 9 STRUCTURE OF extended TEXTUAL 10 ENDTEXT 11 STANZA 11 7. DATA TRACES ..12 TRACE 12 TRACE 20 APPENDIX A. WRITING SEG Y DATA TO A DISK FILE .. 20 APPENDIX B. SEG Y TAPE LABELS .. 21 APPENDIX C. BLOCKING OF SEG Y FILES ON 23 APPENDIX D. extended TEXTUAL STANZAS .. 24 D-1. LOCATION 24 Stanza for Location Data .. 24 Example Stanza for Location Data .. 26 D-2. BIN GRID 27 Stanza for Bin Grid 27 Example for Bin Grid Definition.
• The data in the Extended Textual File Header uses a stanza layout and standard stanzas are defined. • Trace identification is expanded. • Engineering conversions are introduced. • The Textual File Header and the Extended Textual File Header can be encoded as EBCDIC or ASCII characters. 2.3. Notation
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