From 856b67139148861b60ed3afee37e0aa72632f964 Mon Sep 17 00:00:00 2001
From: sfomel <sergey.fomel@gmail.com>
Date: Tue, 9 Apr 2024 14:49:13 -0500
Subject: [PATCH] Oz Yilmaz gathers

---
 book/data/oz/gathers/SConstruct | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/book/data/oz/gathers/SConstruct b/book/data/oz/gathers/SConstruct
index 1e9fdd800..a4f15277e 100644
--- a/book/data/oz/gathers/SConstruct
+++ b/book/data/oz/gathers/SConstruct
@@ -1,22 +1,26 @@
 from rsf.proj import *
 import os
 
-# Download a collection of shot gathers and convert them from SU to RSF
-# See https://seismicrocks.com/oz40.html for description
+# Download a collection of shot gathers from Oz Yilmaz
+# and convert them from SEGY to RSF
+# Courtesy of David Forel 
+# See https://seismicrocks.com/oz40.html 
 
-tgz = 'ozdata._SU.tgz'
+tgz = 'oz.forty.sgy.tgz'
 
-Fetch(tgz, 'download',
-      server='https://nextcloud.seismic-unix.org',
-      top='s/wfbgjReLLjRjLwk')
+Fetch(tgz, 'seismicunix',
+      server='https://seismicrocks.com',
+      top='')
 
-files = [f'ozdata.{i:>02}.su' for i in range(1, 41)]
+files = [f'oz.{i:>02}.sgy' for i in range(1, 41)]
 Flow(files,tgz,
      'gunzip -c $SOURCE | tar -xvf -',stdin=0,stdout=-1)
 
-for su in files:
-    rsf = os.path.splitext(su)[0]+'.rsf'
-    Flow([rsf,'t-'+rsf],su,'suread tfile=${TARGETS[1]} suxdr=y')
-    Result(rsf,f'grey title={rsf}')
+for sgy in files:
+    name =  os.path.splitext(sgy)[0]
+    rsf = name+'.rsf'
+    Flow([rsf,'t-'+rsf,name+'.asc',name+'.bin'],sgy,
+         'segyread tfile=${TARGETS[1]} hfile=${TARGETS[2]} bfile=${TARGETS[3]}')
+    Result(rsf,f'grey title={name}')
     
 End()