From f22c70dfa491bf97a2883fd988e9ad46a6937021 Mon Sep 17 00:00:00 2001
From: Shahram Najm <masn@ecmwf.int>
Date: Wed, 7 Oct 2020 17:42:28 +0100
Subject: [PATCH] ECC-1154: grib_get_data: File with missing
 jDirectionIncrement and lat1 < lat2

---
 src/grib_iterator_class_latlon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/grib_iterator_class_latlon.c b/src/grib_iterator_class_latlon.c
index 59f883376..fc8ab47ed 100644
--- a/src/grib_iterator_class_latlon.c
+++ b/src/grib_iterator_class_latlon.c
@@ -186,7 +186,7 @@ static int init(grib_iterator* iter, grib_handle* h, grib_arguments* args)
                 jdir = (lat1 - lat2) / (Nj - 1);
             }
             else {
-                jdir = (lat1 + 360.0 - lat2) / (Nj - 1);
+                jdir = (lat2 - lat1) / (Nj - 1);
             }
             grib_context_log(h->context, GRIB_LOG_INFO,
                              "%s is missing (See jDirectionIncrementGiven). Using value of %.6f obtained from La1, La2 and Nj", s_jdir, jdir);