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Unidata / gempak

Analysis and product generation for meteorological data.
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Support NEXRAD Level III Super-Res #72

Open akrherz opened 2 years ago

akrherz commented 2 years ago

As of this week, "super-res" level III products are now flowing over NWS dissemination systems like NOAAPort. This issue summaries work done to support these products in GEMPAK. There are two relevant PNS/SCNs at play here:

My understanding is that NCEP NAWIPS will not support these products as they are considered enhancements and national centers they support continue to migrate to AWIPS 2. Having said that, never say never, but the GEMPAK community should try to see what can be done prior to anything "coming from on high".

So the pressing issue at hand here is if/when some of the pre-super-res products that are heavily used, like N0Q are removed from noaaport. The expectation is that these products would still remain on other non-push dissemination systems, but the Unidata community is heavily tied to NOAAPort. My understanding at the moment is that the products slated to be removed have not yet, due to various NWS national centers yet to migrate off noaaport for level III reception.

Table 1 RADAR PRODUCTS TO BE REMOVED FROM NOAAPORT/SBN

WMO HEADING PRODUCT DESCRIPTION
NXUS6i GSM General Status Message 2/GSM
SDUS7i NET Echo Tops 4km X 4km 41/ET
SDUS2i N1S Storm Relative Velocity .54nm X 1deg 16LVL 56/SRM 1.3-1.5DEG
SDUS2i N2S Storm Relative Velocity .54nm X 1deg 16LVL 56/SRM 2.4-2.5DEG
SDUS3i N3S Storm Relative Velocity .54nm X 1deg 16LVL 56/SRM 3.1-3.5DEG
SDUS4i RCM Radar Coded Message 74/RCM
SDUS4i RSL Archive III Status Product 152/ASP
SDUS8i DOD Dig. One Hour Difference Accumulation 174/DOD
SDUS8i DSD Dig. Storm Total Difference Accumulation 175/DSD
SDUS5i NXQ Base Reflectivity .54nm X 1deg 256LVL 94/DR -0.2DEG
SDUS5i NYQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.0-0.2DEG
SDUS5i NZQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.3-0.4DEG
SDUS5i N0Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.5DEG
SDUS5i NAQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 0.9DEG
SDUS2i N1Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 1.3-1.5DEG
SDUS2i NBQ Base Reflectivity .54nm X 1deg 256LVL 94/DR 1.8DEG
SDUS2i N2Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 2.4-2.5DEG
SDUS2i N3Q Base Reflectivity .54nm X 1deg 256LVL 94/DR 3.1-3.5DEG
SDUS5i NXU Base Velocity .13nm X 1deg 256LVL 99/DV -0.2DEG
SDUS5i NYU Base Velocity .13nm X 1deg 256LVL 99/DV 0.0-0.2DEG
SDUS5i NZU Base Velocity .13nm X 1deg 256LVL 99/DV 0.3-0.4DEG
SDUS5i N0U Base Velocity .13nm X 1deg 256LVL 99/DV 0.5DEG
SDUS5i NAU Base Velocity .13nm X 1deg 256LVL 99/DV 0.9DEG
SDUS2i N1U Base Velocity .13nm X 1deg 256LVL 99/DV 1.3-1.5DEG

Table 2 RADAR PRODUCTS TO BE ADDED TO NOAAPORT/SBN

WMO HEADING PRODUCT DESCRIPTION
SDUS5i NXB Base Reflectivity .13nm X .5deg 256LVL 153/SDR -0.2DEG
SDUS5i NYB Base Reflectivity .13nm X .5deg 256LVL 153/SDR 0.0-0.2DEG
SDUS5i NZB Base Reflectivity .13nm X .5deg 256LVL 153/SDR 0.3-0.4DEG
SDUS5i N0B Base Reflectivity .13nm X .5deg 256LVL 153/SDR 0.5DEG
SDUS5i NAB Base Reflectivity .13nm X .5deg 256LVL 153/SDR 0.9DEG
SDUS2i N1B Base Reflectivity .13nm X .5deg 256LVL 153/SDR 1.3-1.5DEG
SDUS2i NBB Base Reflectivity .13nm X 1deg 256LVL 153/SDR 1.8DEG
SDUS2i N2B Base Reflectivity .13nm X 1deg 256LVL 153/SDR 2.4-2.5DEG
SDUS2i N3B Base Reflectivity .13nm X 1deg 256LVL 153/SDR 3.1-3.5DEG
SDUS5i NXG Base Velocity .13nm X .5deg 256LVL 154/SDV -0.2DEG
SDUS5i NYG Base Velocity .13nm X .5deg 256LVL 154/SDV 0.0-0.2DEG
SDUS5i NZG Base Velocity .13nm X .5deg 256LVL 154/SDV 0.3-0.4DEG
SDUS5i N0G Base Velocity .13nm X .5deg 256LVL 154/SDV 0.5DEG
SDUS5i NAG Base Velocity .13nm X .5deg 256LVL 154/SDV 0.9DEG
SDUS2i N1G Base Velocity .13nm X .5deg 256LVL 154/SDV 1.3-1.5DEG

Hopefully we, the GEMPAK Community, can get this resolved quickly :)

akrherz commented 2 years ago

OK, initial attempt to load N0B in nmap2. GUI allows selection of the N0B source, but then emits error messages of whilst attempting to load each file.

got a non-zero tbnids value 153 3

  1. Added an entry in gempak/tables/sat/imgtyp.tbl, same error.
  2. Added entry in gempak/tables/rad/nidprd.tbl, and it loads.

This is hopeful.

akrherz commented 2 years ago

Now trying N0G in nmap2 and get a similar error message

got a non-zero tbnids value 154 3

Similar to the above, adding table entries allows this to load. Hope springs eternal that this all may work without modifying code.

akrherz commented 2 years ago

nex2img appears up to the task of creating a N0B composite. n0b

sebenste commented 2 years ago

One user I know would love to have this capability. If NCEP will not support it, and you have it working, would you consider making a 7.14.1 upgrade for this capability? Furthermore, it looks like velocity data should work with table updates as well.

And maybe NCEP would reconsider if we provided the code...?

Also, tilts below .5 and up to 1.5 are super-res now. We should have entries for those.

akrherz commented 2 years ago

@sebenste yes, I plan on making a release once #73 is merged. In general, it is just some table updates.

akrherz commented 2 years ago

PR #73 merged, but am leaving this open for a bit more testing / review before declaring victory / making a GEMPAK patch release.