Hello Researchers,

I need some help with my wind display, I am currently using GrADS and I have two data from AMPS and ERA5 showing the wind speed and magnitude over the Antarctic Peninsula area.

However, after trying to find the problem, I was unable to detect as to why my AMPS display shows the opposite direction than what it should display (westerlies) over to the right side, I have no problem with my ERA5 display.

AMPS data; https://drive.google.com/file/d/1uNh6QqbXrP66NO1nbqDWsxZ0zTn7JGDS/view?usp=sharing

ERA5 data; https://drive.google.com/file/d/17y7kJaYtZu5-RMMEUkIkBkQT9zLrdS1r/view?usp=sharing (u10_0001 and v10_0001)

Would it have anything to do when I interpolated the AMPS data with NCL to get the area I want?;

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"

load "$NCARG_ROOT/lib/ncarg/nclscripts/esmf/ESMF_regridding.ncl"

OutFileName = "scrip_grid.nc"

f = addfile ("200603-200810_WRF_d6_UGRD_10m_mon.nc", "r")

lat2d = f->LAT

lon2d = f->LON

Opt = True

Opt@InterpMethod = "bilinear" ; default

Opt@ForceOverwrite = True

Opt@PrintTimings = True

curvilinear_to_SCRIP(OutFileName,lat2d,lon2d,Opt)

Together with this, please find attached, the files along the display I got for AMPS and ERA5. The display I should have for AMPS is like the ERA5.