From 5fc44f9aa6fda386fcc4dc124e410139023d66e3 Mon Sep 17 00:00:00 2001
From: Travis O'Brien <obrienta@iu.edu>
Date: Thu, 19 May 2022 14:41:34 -0400
Subject: [PATCH] Fix to polar boundary condition issue in teca_vorticity.cxx

---
 alg/teca_vorticity.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/alg/teca_vorticity.cxx b/alg/teca_vorticity.cxx
index d23b2b377..f24c83887 100644
--- a/alg/teca_vorticity.cxx
+++ b/alg/teca_vorticity.cxx
@@ -118,7 +118,7 @@ void vorticity(num_t *w, const pt_t *lon, const pt_t *lat,
     num_t *dest = w;
     num_t *src = w + n_lon;
     for (unsigned long i = 0; i < n_lon; ++i)
-        dest[i] = src[i+n_lon];
+        dest[i] = src[i];
 
     dest = w + max_j*n_lon;
     src = dest - n_lon;