Welcome, Guest
Username: Password: Remember me
Forgot your password? Forgot your username?
Forum
OpenGribs Forum
Gribs and Models
Can't visualize wave direction of WW3
×

No Bulk Downloads - PLEASE!

26 Sep 2020
No bulk downloads - PLEASE! THIS IS OVERLOADING OUR SERVER AND DENYING ACCESS TO COMMUNITY USERS
SVP - Pas de téléchargement en masse ! Cela surcharge le serveur et empêche la communauté d'utilisateurs d'accéder aux données
_______________________________
WE WILL BLOCK IP'S THAT ARE BULK DOWNLOADING! Nous bloquerons les IPs des personnes qui agissent de la sorte.
PLEASE GO DIRECTLY TO THE GRIB PRODUCERS (NOAA, DWD...) FOR BULK DOWNLOADS. Allez chercher les données directement à la source (NOAA, DWD ...)
Read More...

TOPIC:

Can't visualize wave direction of WW3 4 years 5 months ago #771

Hello!

I perform wave modeling in wave watch III (WW3) and tried to open the output data in .grib format in ZyGrib/XyGrib, but I cannot visualize the wave direction.
I compared my wave direction data with the FNMOC-WW3 data and attached the differences (I put just an example of a part of the data).



I was able to see the significant height of the same output data, but not the wave direction. Does anyone know why I can't see the wave direction and what can I do to fix it?

Thanks a lot!
Attachments:

Please Log in to join the conversation.

Last edit: by lianapbittencourt. Reason: error on attachment

Can't visualize wave direction of WW3 4 years 5 months ago #772

Hi there,
The wave direction records that you marked in the image were for Primary Wave Direction (DIRPW).
XyGrib and I believe also zyGrib, show arrows only for Direction of Wind Waves (WVDIR) and for Direction of Swell Waves (SWDIR) and not for DIRPW.
You might try adding the fields for wind wave and swell in your post processing of the model.
I hope this answers your question

Please Log in to join the conversation.

Can't visualize wave direction of WW3 4 years 5 months ago #773

Hello, David!
Thank you for your message, but i'm still in doubt.
If you see the FNMOC-WW3 data (on the left side of the attachment of the previous message), the variables are the same as mine (DIRPW and PERPW) and i can visualize them on ZyGrib and XyGrib without any problem.

In addition, on the ZyGrib website (www.zygrib.org/#section_installation), the Primary Wave Direction is one of the available data.

Please Log in to join the conversation.

Last edit: by lianapbittencourt.

Can't visualize wave direction of WW3 4 years 5 months ago #774

Hi Liana,

First of all XyGrib and zyGrib are not the same product. I can speak for XyGrib but not for xyGrib.

XyGrib recognizes the records for Primary Wave and shows their values in the data table on the left of the window. However, XyGrib is not currently showing arrows for Primary Wave although it is possible to choose this option in "Sea->Wave Arrows". This is a bug and I will open an issue on the development site.

I tested a FNMOC-WW3 grib with records for Primary Wave Direction and Primary Wave Period with not other records and the arrows are shown in zyGrib. As mentioned above they do not show on XyGrib. I can only suggest that you visualize in zyGrib until we fix the bug in the next release.

Best,
David

Please Log in to join the conversation.

Can't visualize wave direction of WW3 4 years 5 months ago #775

Hi, David.

I can visualize the FNMOC-WW3 direction in ZyGrib, but I cannot visualize my data in ZyGrib.
The variables are the same (as I put in the attachment to the first message), but I don't know why I can't visualize my direction in ZyGrib.

Please Log in to join the conversation.

Can't visualize wave direction of WW3 4 years 5 months ago #778

Please sent a reasonably sized copy of your GRIB file for examination.
David

Please Log in to join the conversation.
Forum
OpenGribs Forum
Gribs and Models
Can't visualize wave direction of WW3
Time to create page: 0.053 seconds

Resources on this site will always be free and open with no commercialization. However, operating costs of the servers to pre-process and deliver GRIB files to XyGrib are not trivial.

If you found the site useful, please share in the effort and help keep us up and running

 

Please Support

Go to top