Hi Jim,
Correct, L1 data are not on NOAAPORT. Unidata does distribute them to the
community over the IDD (using LDM).
If you have questions about the artifacts, that's definitely a question for
whoever is producing the L2 products, which I *think* is NESDIS.
Ryan
On Tue, Nov 2, 2021 at 7:13 AM Weber, Jim <Jim.Weber@xxxxxxx> wrote:
> Ryan,
>
>
>
> That looks exactly like what I am seeing! Forgive my ignorance…but the L1
> are not on NOAAPORT, correct? I am wondering the path that this data flows
> to make it onto NOAAPORT. Is this a case to reach out to NESDIS or someone
> else to inquire what might be causing these artifacts?
>
>
>
> Thanks!
>
>
>
> *Jim Weber*
>
> jim.weber@xxxxxxx <jim.weber@xxxxxxxxx>
>
> Certified Broadcast Meteorologist
>
> FOX 13 News
>
> WTVT - TV
>
> 3213 West Kennedy Blvd.
>
> Tampa, Florida 33609
>
> Phone 813-870-9657
>
>
>
> [image: fox13newscom]
>
>
>
> *From:* Ryan May <rmay@xxxxxxxx>
> *Sent:* Monday, November 1, 2021 4:39 PM
> *To:* Weber, Jim <Jim.Weber@xxxxxxx>
> *Cc:* python-users@xxxxxxxxxxxxxxxx
> *Subject:* Re: [python-users] Artifacts in Channel 3 GOES 16 imagery
>
>
>
> Hi Jim,
>
>
>
> There's no reasonable way that goes_restitch would introduce these kinds
> of issues that I can think of. All it's doing is directly copying the 2D
> chunk of data from the numerous "chunk files" into the single final data
> file.
>
>
>
> My guess is something is going on with NESDIS' (?) creation of the L2
> Cloud Moisture Imagery, as I'm seeing the same artifacts in our datafiles
> for the L2 products, but not in the original L1 raw ABI imagery (see
> attached). Note that both of these datafiles were reassembled with
> goes_restitch.
>
>
>
> Ryan
>
>
>
> On Mon, Nov 1, 2021 at 1:34 PM Weber, Jim <Jim.Weber@xxxxxxx> wrote:
>
> Hello,
>
>
>
> I have been working with Tom Yoksas to get all the goes-restitch setup. I
> have been trying to make the “True Color” images such as the image attached
> to this email called conus1.png The issue I am running into is that there
> are small purple specs in the imagery. After looking through the bands I
> noticed it appears the issue is in the “green” or channel 3 band. I am also
> attaching the channel 3 imagery where you can clearly see the white
> speckles in the imagery. I am getting my data via a Novra receiver that
> working with Tom has very low error rates, so I feel confident it is not
> something I am inducing into the imagery. I am also only finding it in the
> Channel 3 imagery. Is this something that the goes-restitch.py
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__goes-2Drestitch.py&d=DwQFaQ&c=uw6TLu4hwhHdiGJOgwcWD4AjKQx6zvFcGEsbfiY9-EI&r=KKIRMcmZ6BcKOjHM4171gGDDLEx31ZuiUy6Gn81J_cs&m=Yk4LYfPGd9c9NAmft0-DuBushyXFmVsc1cHHmJ-idOqfh8DlB-yyY8Ds7G3cebZl&s=tiRYlclEntLy-xOyDvT_-9oZpMVLV6NvjZfWVkmUCPg&e=>
> script could be causing or do you know what might be causing this issue?
>
>
>
> Thanks so much for any help you can provide me!
>
>
>
> *Jim Weber*
>
> jim.weber@xxxxxxx <jim.weber@xxxxxxxxx>
>
> Certified Broadcast Meteorologist
>
> FOX 13 News
>
> WTVT - TV
>
> 3213 West Kennedy Blvd.
>
> Tampa, Florida 33609
>
> Phone 813-870-9657
>
>
>
> [image: fox13newscom]
>
>
>
>
>
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> --
>
> Ryan May, Ph.D.
>
> Software Engineer
>
> UCAR/Unidata
>
> Boulder, CO
>
>
> This message and its attachments may contain legally privileged or
> confidential information. It is intended solely for the named addressee(s).
> If you are not an addressee indicated in this message (or responsible for
> delivery of the message to an addressee), you may not copy or deliver this
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> this message and its attachments and kindly notify the sender by reply
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> defect.
>
--
Ryan May, Ph.D.
Software Engineer
UCAR/Unidata
Boulder, CO
