change NEE column for AF with gaps files

Author: acmoody

prepare_AF_output_data.m

@@ -207,7 +207,7 @@
 FC_flag = pt_tbl.NEE_fqc > 0;
 amflx_gf = add_cols( amflx_gf, pt_tbl.NEE_f, ...
     { 'FC_F' }, { 'mumol/m2/s' }, FC_flag );
-amflx_gaps = add_cols( amflx_gaps, pt_tbl.NEE, ...
+amflx_gaps = add_cols( amflx_gaps, pt_tbl.NEEorig, ...
     { 'FC' }, { 'mumol/m2/s' } );
 
 %LE_flag = verify_gapfilling( pt_tbl.LE_f, qc_tbl.HL_wpl_massman, 1e-2 );