Index of /data/reports/2004/04-008

[ICO]NameLast modifiedSizeDescription
[PARENTDIR]Parent Directory   -  
[ ]04-008_Polonaise1997..>2005-11-29 10:53 476K 
[TXT]Abstract.htm 2005-09-22 13:40 29K 
[DIR]Abstract_files/ 2004-02-05 16:00 -  
[TXT]README 2005-09-22 13:42 893  
[DIR]loc_map_profiles/ 2004-02-05 16:00 -  
[TXT]misc.fig.htm 2005-09-22 13:41 22K 
[DIR]misc.fig_files/ 2004-02-05 16:00 -  
[TXT]references.htm 2005-09-22 13:42 24K 
[DIR]references_files/ 2004-02-05 16:00 -  
[TXT]report.htm 2005-09-22 13:40 30K 
[DIR]report_files/ 2004-02-05 16:00 -  

This direcory structure contains Standard SEGY shot gathers (.sgy)
from the Polonaise experiment in Poland in 1997.  This was a refraction
project.  There was a project in 2000 (Celebration 2000) that could be 
considered a continuation of Polonaise.

The shot gathers are broken down into north-south (_n), east-west (_e)
and vertical (_z) components.

The geometry should be loaded into the headers.

Rectangular coordinates were used with mapproject command.

mapproject $tsp/geom/rec.dd-Jml:0.9996 -R13/51/26/55r-F-: | awk -f
$tsp/csh/refmtxy.awk>! $tsp/geom/rec.xy

This means it is in Mercator, with the beginning of the coordinate frame on
lat 51N, lon 13 E.

Geographical coordinates (in seconds of arc) are located in non-standard part
of the SEG-Y trace header.
bytes 221-224 receiver geo.lat
bytes 225-228 receiver geo.lon
bytes 229-232 source geo.lat
bytes 233-236 source geo.lon