CDO

Have a look at https://code.mpimet.mpg.de/projects/cdo/embedded/cdo.pdf#subsection.2.6.8

Hi

I have tried the commands cdo -r settaxis,2005-01-01,00:00:00,1month LST_daily_degC_lat-lon_2005-2020_2.nc LST_daily_degC_lat-lon_2005-2020_3.nc
and then I tried to use the invertlat command but nothing really happened.
In both the cases the data did not rotate by 180 degree (anticlockwise or clockwise).

cdo invertlat LST_daily_degC_lat-lon_2005-2020_1.nc LST_daily_degC_lat-lon_2005-2020_2.nc
cdo invertlon LST_daily_degC_lat-lon_2005-2020_1.nc LST_daily_degC_lat-lon_2005-2020_2.nc
but i still see the similar issue with my data.

using grads, i used these commands and this is the description

LON set to 0 360
LAT set to -89.95 89.95
LEV set to 0 0
Time values set: 2005:1:1:0 2005:1:1:0
E set to 1 1

 Descriptor: E:\PRADEEP\correlation_between_variables\LST_daily_degC_lat-lon_2005-2020_4.nc
  Binary: E:\PRADEEP\correlation_between_variables\LST_daily_degC_lat-lon_2005-2020_4.nc
  Type = Gridded
  Xsize = 3600  Ysize = 1800  Zsize = 1  Tsize = 192  Esize = 1
  Number of Variables = 1
     lst_day_cmg  0  t,y,x  Monthly daytime 3min CMG Land-surface Temperature

Please help me with this i have i have to submit my PhD thesis soon and this error is not allowing me to finish the final analysis to be done.

I assume that the grid information was already incorrect in the original data before the interpolation. The data is also shifted by 180 degrees in the longitudes. This can only be solved in CDO with the setgrid function and the correct grid description.
If you are using a GrADS descriptor file, this can also be easily corrected in this file with the yrev option and the correkt starting point of the longitudes:

DSET  ^MODIS.nc
DTYPE  NetCDF
OPTIONS yrev
XDEF 7200 LINEAR -180.000000 0.050000
YDEF 3600 LINEAR -89.975000 0.050000
...

Thank you for your suggestion I have generated a mygrid file

#
# gridID 1
#
gridtype  = lonlat
gridsize  = 6480000
xsize     = 3600
ysize     = 1800
xname     = lon
xlongname = "longitude" 
xunits    = "degrees_east" 
yname     = lat
ylongname = "latitude" 
yunits    = "degrees_north" 
xfirst    = 180
xinc      = 0.1
yfirst    = -89.95
yinc      = 0.1
scanningMode = 64

cdo griddes ifile > mygrid
cdo setgrid,mygrid ifile ofile

At xfirst i did 180 so i could fix my longitude, i am still facing issue with my latitude.
For your reference, I am attaching how my data file looks, as mentioned in the image below.

I do not know how to write the descriptor file but i tried to write it.

dset ^E:\PRADEEP\correlation_between_variables\ofile.nc
title test
dtype netcdf
UNDEF -9999.
options yrev
xdef  3600 linear  -180 180
ydef  1800 linear  -89.95 89.95
zdef   1 linear 1 1
tdef   12 linear  0z1jan2020 1mon
edef   2 names sw lw
vars   1
dF_lst=>lst_day_cmg 1 t,x,y,e  Monthly daytime 3min CMG Land-surface Temperature
endvars

May you please tell me what mistake i am making in the descriptor file? and if possible how can i fix the latitude using cdo. I have tried invertlat and it did not work.

Thank you for you kind response. It's really helpful.
Regards.

The option yrev reverse the latitudes. If the latitude are still upside down, then you have to remove this option.