[gembud] 20180112: getting GOES-16 imagery into GEMPAK

Hi Phil, Rodrigo, and fellow gembudians,

On 01/12/2018 07:38 AM, Phil Birnie wrote:
Thanks for all of the feedback, all. - same Tom, would be interested but we understand that this is a big undertaking.  Same as Rodrigo — for us, just the ability to produce VIS, IR and WV imagery would be fine as we disseminate a few products to the general public and for internal instructional purposes.

This past Monday, January 8, I replaced the GOES-13 image content in
Unidata-Wisconsin (IDD feed type UNIWISC aka MCIDAS) GOES-East sectors
with similar bands from GOES-16.  In order to provide an impact-free
transition, I left the images labeling as being from GOES-13.  Since the
images are being created by McIDAS remapping (IMGREMP) of GOES-16 Full
Disk imagery into existing GOES-13 sectors, the navigation for the
images is still that for GVAR, not the Fixed Grid projection of GOES-16.
GEMPAK, McIDAS, IDV, McIDAS-V and presumably AWIPS users should be able to use these images with no changes to their setup (i.e., no adjustments
to GEMPAK tables, etc.).

I view the remapping of GOES-16 imagery into GVAR sectors as being a
stop gap measure designed to lessen the impact of GOES-13 being
turned off.  I want to open a full discussion with LDM/IDD
consumers of satellite imagery for what the next steps should be:
e.g., send out select bands from the GOES-16 SCMI imagery that
is being distributed in NOAAPort; create image sectors that match
the spatial extents for the GOES-13 imagery that was sent in NOAAPort
in GINI format, etc.

Some questions to be answered before we proceed with the creation of
new image content using GOES-16 data are:

- does GEMPAK support the Fixed Grid projection used in all GOES-16
  GRB images?

  I _think_ the answer to this is no, Fixed Grid is not supported in
  GEMPAK, but I am not sure.  If it is not, new image sectors can
  be remapped into a projection that GEMPAK supports.

- which bands would GEMPAK users like to see in the new content?

  Recall that GVAR GOES platforms have 5 imager channels (bands),
  while GOES-R has 16 ABI channels.

- do GEMPAK users need to be able to extract valid calibrations
  from the imagery (e.g., TEMPerature for IR bands and Albedo/
  reflectance from VISible bands)?

  If yes, this may mean that non-GOES-16 calibration information
  will need to be added to the new image sectors.

- what LDM/IDD datastream should these image sectors be sent in?

Comment(s):

- creation of image sectors that are usable by GEMPAK is not
  a daunting task ** as long as the output format for the
  new sectors is McIDAS AREA **

  Creation of new sectors in GINI format would require new program
  development while creation in AREA format simply requires the
  creation of scripts that run appropriate McIDAS commands.

Your input is important.  Please let us know what option would be
best for your operations!

Cheers,

Tom

From: Rodrigo Mathias <rodrigowind.meteoro@xxxxxxxxx> <mailto:rodrigowind.meteoro@xxxxxxxxx> Reply: Rodrigo Mathias <rodrigowind.meteoro@xxxxxxxxx> <mailto:rodrigowind.meteoro@xxxxxxxxx>
Date: January 11, 2018 at 9:12:04 PM
To: gembud@xxxxxxxxxxxxxxxx <gembud@xxxxxxxxxxxxxxxx> <mailto:gembud@xxxxxxxxxxxxxxxx>
Subject: [gembud] Fwd: 20180111: Displaying GOES-16 Data

Hi Tom!

We are very interested in GOES-16 on Gempak. We have been trying to migrate to AWIPS II, but it is not possible yet and we use GOES daily on Gempak for maritime forecasts in Brazil. We are worried about the coming end of GOES-13 imagery. It is not necessary all the products and channels, but the enough of basic IR, VIS and WV imagery.

Regards,
Rodrigo

---------- Mensagem encaminhada ----------
De: "Tom Yoksas" <>
Data: 11 de jan de 2018 6:50 PM
Assunto: [gembud] 20180111: Displaying GOES-16 Data
Para: "Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION]" <robert.r.mullenax@xxxxxxxx <mailto:robert.r.mullenax@xxxxxxxx>>, "Devin Eyre" <Devin.Eyre@xxxxxxxxxxxx <mailto:Devin.Eyre@xxxxxxxxxxxx>>, "Phil Birnie" <me@xxxxxxxxxxxxxx <mailto:me@xxxxxxxxxxxxxx>>, "gembud@xxxxxxxxxxxxxxxx <mailto:gembud@xxxxxxxxxxxxxxxx>" <gembud@xxxxxxxxxxxxxxxx <mailto:gembud@xxxxxxxxxxxxxxxx>>
Cc:

    Hi Guys,

    On 01/11/2018 01:40 PM, Mullenax, Robert R. (WFF-820.0)[ORBITAL
    SCIENCES CORPORATION] wrote:

        I was going to try that when I return from the Ice, wasn't
        sure it would work.


    This brings up a good question in my mind: does GEMPAK support the
    Fixed
    Grid projection that is used for all products distributed in the GRB
    (GOES ReBroadcast)?   If not, McIDAS can remap the images into
    projections supported by GEMPAK, but this would entail some loss of
    information.

    re:

        What is AWS?


    Amazon Web Services - Amazon's cloud.  All GOES-16 data has been moved
    up to AWS since the satellite was turned on.

    If anyone is not on the ldm-users email list, please be aware that we
    are distributing ALL of the GOES-16 imagery and products we are
    receiving here in UCAR.  The imagery and products are under the DIFAX
    feed type, but this will be renamed to SATELLITE in an upcoming
    LDM release (while keeping DIFAX as a secondary name, of course).

    A much bigger question for the community as a whole is if there is
    a desire for us (Unidata) to distribute GOES-16 imagery in a format
    that is readily usable by GEMPAK (e.g., AREA, NOT GINI!)?  If the
    answer is yes, what sectors are of interest (NB: not all bands!!).
    We have been discussing using McIDAS to turn the NOAAPort-delivered
    SCMI netCDF4 images into McIDAS AREAs and providing them in a
    satellite image based feed type like UNIWISC, NIMAGE, or possibly
    SATELLITE.

    Cheers,

    Tom

        ------------------------------------------------------------------------
        *From:* Devin Eyre [Devin.Eyre@xxxxxxxxxxxx
        <mailto:Devin.Eyre@xxxxxxxxxxxx>]
        *Sent:* Thursday, January 11, 2018 2:27 PM
        *To:* Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES
        CORPORATION]; Phil Birnie; gembud@xxxxxxxxxxxxxxxx
        <mailto:gembud@xxxxxxxxxxxxxxxx>
        *Subject:* Re: [gembud] Displaying GOES-16 Data

        Using mcidas, you can make area files using the GOES-16 netcdf
        files, if you use the data that's on AWS.

        ------------------------------------------------------------------------
        *From:* gembud-bounces@xxxxxxxxxxxxxxxx
        <mailto:gembud-bounces@xxxxxxxxxxxxxxxx>
        <gembud-bounces@xxxxxxxxxxxxxxxx
        <mailto:gembud-bounces@xxxxxxxxxxxxxxxx>> on behalf of
        Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION]
        <robert.r.mullenax@xxxxxxxx <mailto:robert.r.mullenax@xxxxxxxx>>
        *Sent:* Thursday, January 11, 2018 2:22 PM
        *To:* Phil Birnie; gembud@xxxxxxxxxxxxxxxx
        <mailto:gembud@xxxxxxxxxxxxxxxx>
        *Subject:* Re: [gembud] Displaying GOES-16 Data
        Display of GOES-16 isn't supported in GEMPAK according to the
        link Unidata sent out the other day. Only McIDAS-X, McIDAS-V,
        IDV, and AWIPS2.

        It is something I will have to tackle here in a few weeks
        myself as we haven't moved to AWIPS2. I would assume that with
        GEMPAK not being developed anymore at NCEP (AFAIK) that it
        would be difficult for Unidata to tackle that likely big task,
        but maybe Michael can chime in on that.


        Regards,
        Robert Mullenax



        Please note new email address: robert.r.mullenax@xxxxxxxx
        <mailto:robert.r.mullenax@xxxxxxxx>
        Robert Mullenax
        Senior Principal Meteorologist, Orbital ATK/CSBF
        1510 E. FM 3224
        Palestine, Texas 75802
        903-723-8037 <tel:903-723-8037>
        robert.r.mullenax@xxxxxxxx <mailto:robert.r.mullenax@xxxxxxxx>
        ------------------------------------------------------------------------
        *From:* gembud-bounces@xxxxxxxxxxxxxxxx
        <mailto:gembud-bounces@xxxxxxxxxxxxxxxx>
        [gembud-bounces@xxxxxxxxxxxxxxxx
        <mailto:gembud-bounces@xxxxxxxxxxxxxxxx>] on behalf of Phil
        Birnie [me@xxxxxxxxxxxxxx <mailto:me@xxxxxxxxxxxxxx>]
        *Sent:* Thursday, January 11, 2018 12:13 PM
        *To:* gembud@xxxxxxxxxxxxxxxx <mailto:gembud@xxxxxxxxxxxxxxxx>
        *Subject:* [gembud] Displaying GOES-16 Data

        Hi Gembuds,

        I am successfully ingesting the GOES-16 data but am having
        difficulty displaying it.  I’m assuming I probably have to run
        it through (or perhaps create) some kind of decoder.  Has
        anyone had success that might be able to provide a few pointers?

        Thanks!

        - Phil Birnie
        Ohio State University, Dept of Geography Volunteer


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+----------------------------------------------------------------------+
* Tom Yoksas                                      UCAR Unidata Program *
* (303) 497-8642 (last resort)                           P.O. Box 3000 *
* yoksas@xxxxxxxx                                    Boulder, CO 80307 *
* Unidata WWW Service                     http://www.unidata.ucar.edu/ *
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