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index a4f54adafc3dd33c94290638137aa26bc7975e4f..49c408a5afbe0aa0e3153ad0745cbc1611c929bc 100644
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@@ -66,3 +66,10 @@ Scripts and input data used by Aiko Voigt when cmorizing the TRACMIP data using
 
 Example scripts showing how to access TRACMIP data from the Pangeo cloud, and how to use this to redo a 
 couple of figures from the 2016 JAMES introduction paper.
+
+--------------------------------------------
+
+**Known data errors**
+
+- The surface sensible heat flux in LMDZ5A has the wrong sign (negative instead of positive as in the other models). This can be corrected for by multiplying hfss with -1.
+