Search found 32 matches

by federica
February 27th, 2023, 9:11 am
Forum: Dispersion Model
Topic: Level height for Gh-Pv
Replies: 0
Views: 28309

Level height for Gh-Pv

Hello, I need to compute the concentration of a pollutant into the atmosphere at certain heights or height intervals. I'm using INITD=3 (Gaussian horizontal and vertical particle distribution). From the HYSPLIT user-guide, I read: 22(7)- Height of each level (m) Default: 50 Output grid levels may be...
by federica
March 20th, 2020, 6:24 am
Forum: Users
Topic: Increase topography resolution
Replies: 4
Views: 3980

Re: Increase topography resolution

Many thanks for your exhaustive reply! It helps me a lot.

Best Regards
Federica
by federica
March 19th, 2020, 5:45 am
Forum: Users
Topic: Increase topography resolution
Replies: 4
Views: 3980

Re: Increase topography resolution

Thanks for your reply. Is it possible to tell the code to use the user-defined TERRAIN.ASC even when the wind-field has its own ground elevation?

Many thanks
Regards
Federica
by federica
March 17th, 2020, 10:44 am
Forum: Users
Topic: Increase topography resolution
Replies: 4
Views: 3980

Increase topography resolution

Hello,

I'd like to improve the topography of the meteo data.

Performing WRF simulations and using the resulting meteo files is one option. I'm wondering if it is possible to use a gdas file and substitute the TERRAIN.ASC file with the topography that I'd like to use.

Many thanks
Regards

Federica
by federica
February 25th, 2020, 3:28 pm
Forum: Users
Topic: add_grid
Replies: 5
Views: 4577

Re: add_grid

Thanks for the reply.

I'm trying to use the add_grid routine because I'd like to improve the spatial resolution of my meteo data.
Alternatively, I'm doing WRF simulations and they seems to work.

Regards
Federica
by federica
February 17th, 2020, 5:50 am
Forum: Users
Topic: add_grid
Replies: 5
Views: 4577

Re: add_grid

I've tried again and it worked. I set 2 as resolution divisor and N in Add one i-coordinate. Is there a threshold on the resolution divisor? I've tried with 10 but it did not work. Attached the link to the gdas file that I'm using. https://drive.google.com/open?id=1Mekuptru6sReGYyf3am8rodJD2bJvdIs M...
by federica
February 16th, 2020, 9:44 am
Forum: Users
Topic: add_data routine
Replies: 6
Views: 4761

Re: add_data routine

I've tried with a lambent conformal grid and it worked.
Many thanks!
by federica
February 13th, 2020, 6:12 am
Forum: Users
Topic: add_data routine
Replies: 6
Views: 4761

Re: add_data routine

Yes, I'm using a lat-lon grid. So, is this a problem of the wind-field that I'm using (in this case a GDAS 1.0 deg) or of my lat-lon point? I tried with different wind-fields, but I still get the same error.
Many thanks for your help!
by federica
February 11th, 2020, 10:29 am
Forum: Users
Topic: add_data routine
Replies: 6
Views: 4761

Re: add_data routine

Thanks! Setting the observation time equal to the start of the meteo data I can produce the new meteo file. However, I still get this error: Station outside of gridded file boundary (lat,lon): 37.00 15.00 The problem is that those points are inside my domain. Thanks again for you help Federica
by federica
February 11th, 2020, 9:46 am
Forum: Users
Topic: add_grid
Replies: 5
Views: 4577

add_grid

Hello, I'm trying to use the add_grid routine to increase the resolution of my meteo data. I'm using a 1deg resolution file and I'd like to obtain a 0.5 deg file. This is what I'm doing: Enter meteorological directory ... ./ Enter meteorological file name ... extract_26568.bin Enter grid resolution ...

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