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akrherz / radcomp

NEXRAD mosaic code
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N0Q could go away on 1 Dec 2021 #7

Closed akrherz closed 2 years ago

akrherz commented 3 years ago

see this PNS

IEM news item on this change.

``` NOUS41 KWBC 041730 PNSWSH Public Information Statement 21-55 National Weather Service Headquarters Silver Spring MD 130 PM EDT Wed Aug 4 2021 To: Subscribers -NOAA Weather Wire Service -Emergency Managers Weather Information Network -NOAAPORT Other NWS Partners and Employees From: Terrance J. Clark Director, WSR-88D Radar Operations Center Subject: Soliciting Comments on a Change to NEXRAD Product Dissemination via NOAAPORT/SBN on December 1, 2021 The National Weather Service (NWS), Office of Observations, Radar Operations Center (ROC) is requesting comments through September 9, 2021, regarding the proposed termination and replacement of WSR-88D products disseminated via the NOAAPORT Satellite Broadcast Network (SBN) as described below. On or around December 1, 2021, the National Weather Service will change the public dissemination of WSR-88D radar products via NOAAPORT/SBN. Table 1 contains the products and WMO Headings the NWS plans to remove from the NOAAPORT/SBN service by changing the II portion of the WMO Heading to 6i. Please note this change will also remove dissemination of the TDWR SPG Echo Tops product from NOAAPORT/SBN since they share the same WMO heading. Additionally, Table 2 shows Radar products and WMO headings NWS plans to add to the NOAAPORT/SBN service as replacements for the lower resolution versions being removed. The WMO headings for the higher resolution (super-res) products will use new NNN product identifiers, with the II portion remaining the same as was used with the lower resolution products. To avoid impacting Radar Product Central Collection Dissemination Service (RPCCDS) users, the current RPCCDS product suite, will not be altered by this change. RPCCDS Radar Level-III products are available via TGFTP. -- https://www.weather.gov/tg/rpccds -- -- https://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/. The current NOAAPORT/SBN and RPCCDS product suites are posted at -- https://www.weather.gov/media/tg/noaaport_radar_products.pdf -- -- https://www.weather.gov/media/tg/rpccds_radar_products.pdf. Products from elevation angles below 0.5 degrees are only available from the 18 WSR-88D radars that include the Base Tilt scan feature. -- https://www.weather.gov/media/notification/scn20-42base_tilt.pdf. TABLE 1: RADAR PRODUCTS TO BE REMOVED FROM NOAAPORT/SBN WMO HEADING PRODUCT DESCRIPTION TTAAII NNN PRODUCT NAME, RESOLUTION, NEXRAD ID, AND ELEVATION ANGLE ------ --- -------------------------------------------------------- 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 TTAAII NNN PRODUCT NAME, RESOLUTION, NEXRAD ID, AND ELEVATION ANGLE ------ --- -------------------------------------------------------- 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 Please direct comments or questions on this planned change to: Mike Istok Radar Operations Center Michael.Istok@noaa.gov National Public Information Statements are online at: https://www.weather.gov/notification/ ```
akrherz commented 2 years ago

So this repo can now generally build N0B composites, but since the N0Q data is still flowing, I'll hold off on switching over. There's a lot to think about here as well. N0B is 4x the resolution, but we generally can't handle such a large RASTER. This also creates somewhat a mess with N0R still being "faked" from N0Q, which could still work, but then we would have N0Q being faked from N0B as well. I should have used generic labels for these when I started back in 2003!