switch to single precision

pca/l1b-pcs/anc/cris_l1b_pcs.cdl

@@ -486,7 +486,7 @@ variables:
               string utc_tuple_lbl:coverage_content_type="auxiliaryInformation";
               string utc_tuple_lbl:description="names of the elements of UTC when it is expressed as an array of integers year,month,day,hour,minute,second,millisecond,microsecond";
 
-          double rad_global_pcs(atrack, xtrack, fov, globalpc);
+          float rad_global_pcs(atrack, xtrack, fov, globalpc);
               string rad_global_pcs:ancillary_variables="rad_global_pcs_qc";
               string rad_global_pcs:long_name="longwave real spectral radiance principal component score";
               string rad_global_pcs:coordinates="lon lat";
@@ -495,7 +495,7 @@ variables:
               string rad_global_pcs:units="1";
               string rad_global_pcs:description="real spectral radiance as global principal component scores";
 
-          double rad_local_pcs(atrack, xtrack, fov, localpc);
+          float rad_local_pcs(atrack, xtrack, fov, localpc);
               string rad_local_pcs:long_name="real spectral radiance principal component score";
               string rad_local_pcs:coordinates="lon lat";
               double rad_local_pcs:_FillValue=9.9692099683868690e+36;
@@ -503,19 +503,19 @@ variables:
               string rad_local_pcs:units="1";
               string rad_local_pcs:description="real spectral radiance as local principal component scores";
 
-          double rad_local_pcs_U(localpc, wnum);
+          float rad_local_pcs_U(localpc, wnum);
               string rad_local_pcs_U:long_name="local PC U matrix for reconstruction";
               double rad_local_pcs_U:_FillValue=9.9692099683868690e+36;
               string rad_local_pcs_U:units="mW/(m2 sr cm-1)";
               string rad_local_pcs_U:description="real spectral radiance local principal components";
 
-          double rad_local_pcs_M(wnum);
+          float rad_local_pcs_M(wnum);
               string rad_local_pcs_M:long_name="local PC M vector for reconstruction";
               double rad_local_pcs_M:_FillValue=9.9692099683868690e+36;
               string rad_local_pcs_M:units="mW/(m2 sr cm-1)";
               string rad_local_pcs_M:description="real spectral radiance local principal component mean";
 
-          double rad_local_pcs_D(wnum);
+          float rad_local_pcs_D(wnum);
               string rad_local_pcs_D:long_name="local PC D vector for reconstruction";
               double rad_local_pcs_D:_FillValue=9.9692099683868690e+36;
               string rad_local_pcs_D:units="1";