Dear Wang,
note that using the lookup table may not be your best option for wind
retrieval. The reason is that it can only interpolate between the
precalculated values. If you calculate the absorption on the fly, the
line will be Doppler-shifted, which is exact. You can achieve this by
setting up propmat_clearsky_agenda accordingly. Depending on the details
of your calculation, this could be a bit slower, but it could also even
be faster (in case your line list is not very long).
Best wishes,
Stefan
On 21 Apr 2021, at 7:59, Wenyu Wang wrote:
Hi Everyone,
I had a question about caculating the impact of winds by using lookup
table in ARTS.
I use the larger frequency grid when generate the table, such as 3 GHz
band, 0.5 MHz setp. However, when I caculate the y using the frequency
grid with 1 GHz band and 1 MHz step, error messages occur as follow
(But it is OK when I set the frequency step to 2 MHz):
Runtime-error in source calculation at index 0:
Run-time error in agenda: propmat_clearsky_agenda
Run-time error in method: propmat_clearskyAddFromLookup
Problem with gas absorption lookup table.
At least one frequency is outside the range covered by the lookup
table.
The version of ARTS is 2.4.0.
Regards,
Wang_______________________________________________
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