From 1ca0283c00c1c2aab856a6812ca81f5f9adfebc5 Mon Sep 17 00:00:00 2001
From: Weiqiang Zhu <75299929+zhuwq0@users.noreply.github.com>
Date: Wed, 24 Jan 2024 11:04:25 -0800
Subject: [PATCH] Update 00_introduction.md

---
 docs/lectures/00_introduction.md | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/docs/lectures/00_introduction.md b/docs/lectures/00_introduction.md
index 0aea670..61a3a6f 100644
--- a/docs/lectures/00_introduction.md
+++ b/docs/lectures/00_introduction.md
@@ -74,7 +74,11 @@ size: 16:12
 ### What information can we get from seismic data?
 
 - Take a look at seismic waveforms:
-[ncedc.org/waveformDisplay/](https://ncedc.org/waveformDisplay/)  [Station Channel Codes](https://docs.fdsn.org/projects/source-identifiers/en/v1.0/channel-codes.html)
+[ncedc.org/waveformDisplay/](https://ncedc.org/waveformDisplay/)
+
+[Station Channel Codes](https://docs.fdsn.org/projects/source-identifiers/en/v1.0/channel-codes.html) 
+
+[Station Channels Codes IRIS](https://ds.iris.edu/ds/nodes/dmc/data/formats/seed-channel-naming/)
 
 ![height:500px](https://ncedc.org/gifs/annotatedQuakes.jpg)
 
@@ -280,4 +284,4 @@ Deep Learning (Deep Neural Networks) is a new paradigm of software development
 
 ---
 
-### Questions?
\ No newline at end of file
+### Questions?