diff --git a/CMakeLists.txt b/CMakeLists.txt
index ea49fdd8..7bed756a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,7 +17,7 @@ option(USE_HDF5 "Use HDF5?" off)
 option(USE_REGEX "Use Regex?" on)
 option(USE_TIGGE "Use tigge?" on)
 option(USE_MYSQL "Use MySQL?" off)
-option(USE_IPOLATES "Use Ipolates" off)
+option(USE_IPOLATES "Use Ipolates" on)
 option(USE_UDF "Use UDF?" off)
 option(USE_OPENMP "Use OpenMP?" on)
 option(USE_PROJ4 "Use Proj4?" off)
@@ -94,7 +94,7 @@ endif()
 message(STATUS "Checking if the user want to use NCEPLIBS-ip...")
 if(USE_IPOLATES)
   find_package(ip CONFIG REQUIRED)
-  list(APPEND definitions_list -DIPOLATES_LIB="ipolates_lib_4")
+  list(APPEND definitions_list -DIPOLATES_LIB="ipolates_lib_d")
   list(APPEND definitions_list -DUSE_IPOLATES)
 endif()
 
diff --git a/tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt b/tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
index 0c1ab74d..07ccd65c 100644
--- a/tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
+++ b/tests/data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
@@ -1,84 +1,84 @@
-1:0:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+1:0:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-2:8324:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,1) lvl2=(255,missing):0.01 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-43:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-17
+2:28844:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-3:16648:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,1) lvl2=(255,missing):0.01 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-67:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-18
+3:57688:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-4:24972:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,2) lvl2=(255,missing):0.02 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-28:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-14
+4:86532:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-5:33296:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,2) lvl2=(255,missing):0.02 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-58:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-23
+5:115376:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-6:41620:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,4) lvl2=(255,missing):0.04 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-6:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=1
+6:144220:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-7:49944:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,4) lvl2=(255,missing):0.04 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-27:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-16
+7:173064:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-8:58268:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,7) lvl2=(255,missing):0.07 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-1:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=10
+8:201908:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-9:66592:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,7) lvl2=(255,missing):0.07 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=6:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-3
+9:230752:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-10:74916:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,10) lvl2=(255,missing):0.1 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-10:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=8
+10:259596:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-11:83240:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,10) lvl2=(255,missing):0.1 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=11:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-1
+11:288440:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-12:91564:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,20) lvl2=(255,missing):0.2 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-8:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=9
+12:313189:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-13:99888:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,20) lvl2=(255,missing):0.2 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=14:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=8
+13:337938:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-14:108212:grid_template=0:winds(N/S):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 48
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,40) lvl2=(255,missing):0.4 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-3:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-8
+14:362687:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,40) lvl2=(255,missing):0.4 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=15:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=13
diff --git a/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt b/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
index b8a43f49..07ccd65c 100644
--- a/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
+++ b/tests/data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
@@ -1,84 +1,84 @@
 1:0:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-2:179:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,1) lvl2=(255,missing):0.01 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-43:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-17
+2:28844:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-3:358:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,1) lvl2=(255,missing):0.01 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-67:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-18
+3:57688:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-4:537:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,2) lvl2=(255,missing):0.02 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-28:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-14
+4:86532:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-5:716:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,2) lvl2=(255,missing):0.02 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-58:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-23
+5:115376:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-6:895:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,4) lvl2=(255,missing):0.04 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-6:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=1
+6:144220:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-7:1074:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,4) lvl2=(255,missing):0.04 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-27:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-16
+7:173064:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-8:1253:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,7) lvl2=(255,missing):0.07 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-1:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=10
+8:201908:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-9:1432:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,7) lvl2=(255,missing):0.07 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=6:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-3
+9:230752:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-10:1611:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,10) lvl2=(255,missing):0.1 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-10:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=8
+10:259596:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-11:1790:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,10) lvl2=(255,missing):0.1 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=11:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-1
+11:288440:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-12:1969:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,20) lvl2=(255,missing):0.2 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-8:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=9
+12:313189:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-13:2148:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,20) lvl2=(255,missing):0.2 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=14:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=8
+13:337938:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
-14:2327:grid_template=0:winds(grid):
-	lat-lon grid:(360 x 181) units 1e-06 input WE:SN output WE:SN res 56
-	lat 0.000000 to 180.000000 by 1.000000
-	lon 0.000000 to 359.000000 by 1.000000 #points=65160
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:UGRD U-Component of Wind [m/s]:lvl1=(100,40) lvl2=(255,missing):0.4 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=-3:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=-8
+14:362687:grid_template=0:winds(grid):
+	lat-lon grid:(360 x 91) units 1e-06 input WE:SN output WE:SN res 56
+	lat 0.000000 to 90.000000 by 1.000000
+	lon 0.000000 to 359.000000 by 1.000000 #points=32760
 	basic_ang=0 sub_angle=1000000 units=0.000001
-	unscaled lat=0 to 180000000 lon=0 to 359000000
+	unscaled lat=0 to 90000000 lon=0 to 359000000:12Z26apr2024:VGRD V-Component of Wind [m/s]:lvl1=(100,40) lvl2=(255,missing):0.4 mb:anl::lon=10.000000,lat=12.000000,i=4331,ix=11,iy=13,val=15:lon=20.000000,lat=80.000000,i=28821,ix=21,iy=81,val=13
diff --git a/tests/run_ipolates_tests.sh b/tests/run_ipolates_tests.sh
index b15574f0..19a43e21 100644
--- a/tests/run_ipolates_tests.sh
+++ b/tests/run_ipolates_tests.sh
@@ -5,19 +5,22 @@
 
 set -e
 
+echo "create a new grib file with intger values"
+../wgrib2/wgrib2 data/gdas.t12z.pgrb2.1p00.anl.75r.grib2 -rpn floor -set_scaling 0 0 -grib_out test.grb
+
 echo "*** Testing conversion from earth to grid"
-../wgrib2/wgrib2 data/gdas.t12z.pgrb2.1p00.anl.75r.grib2 -match "(UGRD|VGRD)" -new_grid_winds grid  \
-    -new_grid latlon 0:360:1 00:181:1 new_grid.grb
-../wgrib2/wgrib2 new_grid.grb -grid -v2 > new_grid.txt
+../wgrib2/wgrib2 test.grb -match "(UGRD|VGRD)" -new_grid_winds grid  \
+    -new_grid latlon 0:360:1 00:91:1 new_grid.grb
+../wgrib2/wgrib2 new_grid.grb -grid -v2 -s -lon 10 12 -lon 20 80 > new_grid.txt
 touch new_grid.txt
 diff -w new_grid.txt data/ref_new_grid_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
 
 echo "*** Testing conversion from grid to earth"
 ../wgrib2/wgrib2 new_grid.grb  -new_grid_winds earth  \
-    -new_grid latlon 0:360:1 00:181:1 new_grid_earth.grb
-../wgrib2/wgrib2 new_grid_earth.grb -grid -v2 > new_grid_earth.txt
+    -new_grid latlon 0:360:1 00:91:1 new_grid_earth.grb
+../wgrib2/wgrib2 new_grid.grb -grid -v2 -s -lon 10 12 -lon 20 80 > new_grid_earth.txt
 touch new_grid_earth.txt
 diff -w new_grid_earth.txt data/ref_new_grid_earth_gdas.t12z.pgrb2.1p00.anl.75r.grib2.txt
 
 echo "*** SUCCESS!"
-exit 0
\ No newline at end of file
+exit 0
diff --git a/wgrib2/CMakeLists.txt b/wgrib2/CMakeLists.txt
index 597d6959..7794dd14 100644
--- a/wgrib2/CMakeLists.txt
+++ b/wgrib2/CMakeLists.txt
@@ -106,7 +106,7 @@ if(USE_G2CLIB)
 endif()
 
 if(USE_IPOLATES)
-  target_link_libraries(obj_lib PUBLIC ip::ip_4)
+  target_link_libraries(obj_lib PUBLIC ip::ip_d)
 
   # Link to the Fortran runtime library for each compiler if using ip2.
   # The wgrib2 exectuable is created using the C compiler and
@@ -133,9 +133,6 @@ target_link_libraries(wgrib2_exe PRIVATE obj_lib)
 if(BUILD_LIB)
   set(headers wgrib2_api.h wgrib2.h ${CMAKE_BINARY_DIR}/wgrib2/wgrib2_meta.h)
   target_link_libraries(wgrib2_lib PUBLIC gctpc)
-  # if(USE_IPOLATES EQUAL 1)
-  #   target_link_libraries(wgrib2_lib PRIVATE ip:ip_4 sp:sp_4)
-  # endif()
   set_target_properties(wgrib2_lib PROPERTIES PUBLIC_HEADER "${headers}")
   target_compile_definitions(wgrib2_lib PUBLIC ${definitions_list})