2024/06/30  June-Aug 2024
DM04-24.05 National Data Buoy Center /NDBC/  Distribution Of Additional  Operational Tropical Atmosphere Ocean /Tao/ Recap Buoy Data Under IOBF08 KWNB and IOBG08 KWNB Effective June - August 2024

NOXX10 KWBC 161457
IDP Dataflow Message 04.24-05

To:  AWIPS/NOAAPort Users. Emergency Managers Weather
     Information Network /EMWIN/ National Weather Services
     /NWS/ Customers. WAFS Users.  GTS Users. NWS Fax Chart
     Users

From:  RTH Washington IDP DataFlow

Subject: National Data Buoy Center /Ndbc/  Distribution Of
Additional  Operational Tropical Atmosphere Ocean /Tao/ Recap Buoy
Data Under IOBF08 KWNB and IOBG08 KWNB Effective June - August 2024 

THIS MESSAGE PROVIDES NOTICE THAT THE NWS NATIONAL DATA BUOY CENTER
/NDBC/ WILL START DISSEMINATING ADDITIONAL OPERATIONAL TAO RECAP
BUOY DATA UNDER THE /WMO/ HEADINGS/COLLECTIVE OF IOBF08 KWNB AND
IOBG08 KWNB.  EFFECTIVE ON OR ABOUT THE DATES SHOWN BELOW THE
FOLLOWING OPERATIONAL TAO RECAP BUOYS ARE REPLACING THE LEGACY
TAO REFRESH BUOYS:

* 8N 165E -  WMO 52006 - DEPLOYMENT DATE JUNE 30... 2024
* 2N 180W - WMO 52310 - DEPLOYMENT DATE JULY 21... 2024
* 2S 180W - WMO 52312 - DEPLOYMENT DATE JULY 24... 2024
* 2S 170W - WMO 51306 - DEPLOYMENT DATE JULY 30... 2024
* 2N 170W - WMO 51305 - DEPLOYMENT DATE AUGUST 4... 2024

THE MAJOR DIFFERENCE WITH THE TAO RECAP BUOYS ARE THE FREQUENCY OF
THE REPORTS.  THE TOP SIDE (MET DATA) WILL BE TRANSMITTED EVERY 10 
MINUTES... WHILE THE BOTTOM SIDE (OCEANOGRAPHIC DATA) WILL BE 
TRANSMITTED HOURLY.  HOWEVER... THE HOURLY TRANSMISSION WILL 
INCLUDE ALL THE 10 MINUTE OBSERVATION DATA.

STARTING WITH THE JUNE DEPLOYMENTS NDBC WILL ADD THREE ADDITIONAL
SEQUENCE NUMBERS TO THE END OF THE EXISTING BOTTOM SIDE TEMPLATE.
THE ADDITIONAL SEQUENCE NUMBERS WILL PROVIDE THE DATA FROM THE  
POINT SOURCE CURRENT METER (PSCM)...THE BUFR SEQUENCE NUMBERS
WILL BE 101000...031000...306005.  PLEASE ENSURE THAT YOUR
DECODERS CAN HANDLE THESE ADDITIONAL SEQUENCE NUMBERS FOR THE
PSCM DATA.

IN ADDITION... STARTING WITH THE TAO RECAP BUOYS NDBC WILL BE
PHASING OUT THE TAC DISTRIBUTION OF TAO DATA.  THEREFORE... 
DATA FROM THESE BUOYS WILL ONLY TRANSMIT DATA USING BUFR FORMAT
AND IT WILL NO LONGER BE TRANSMITTED UNDER THE TAC HEADER 
SSVX08 KWNB ON OR ABOUT THE EFFECTIVE DATE.

THE TAO RECAP BUOYS ESSENTIALLY TRANSMIT THE SAME DATA TYPES
AS THE CURRENT TAO REFRESH SYSTEM THAT IT IS REPLACING.  
STATION 5N 125W - WMO 51015  IS CURRENTLY TRANSMITTING OVER 
THE GTS AS A RECAP STATION IN BUFR.

THE PRIMARY PURPOSE OF THIS NOTICE IS TO (1) MAKE USERS AWARE
OF THE INCREASED REPORTING FREQUENCY OF THESE STATIONS... /2/
THAT DATA FOR THESE STATIONS ARE GOING TO NO LONGER BE
DISTRIBUTED ON THE TAC HEADER AND (3) ADDITIONAL BUFR SEQUENCE
NUMBERS HAVE BEEN ADDED TO THE BOTTOM SIDE MESSAGE FORMAT.
PLEASE ENSURE THAT YOU ARE PROCESSING THE BUFR TAO DATA /2 
MESSAGES ONE FOR MET/TOP SIDE AND ONE FOR SUBSURFACE DATA/
BOTTOM SIDE/ PRIOR TO THESE PLANNED DEPLOYMENTS.

NOTE... ADDITIONAL TAO RECAP BUOYS WILL BE DEPLOYED THROUGH
FY2028.  

IF YOU HAVE ANY QUESTIONS ABOUT THESE CHANGES...PLEASE CONTACT:

 JAMES ELLIOTT
 NATIONAL DATA BUOY CENTER
 STENNIS SPACE CENTER MISSISSIPPI  39529
 PHONE: 601-568-2984
 E-MAIL: JAMES.ELLIOTT@NOAA.GOV

THIS AND OTHER NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE
ONLINE AT /USE LOWER CASE LETTERS/:

    HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM

This information is also posted on the NWS IDP DataFlow
change notices web page. The url is listed below.

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your datastream please contact Data Management
at nco.idp.dataflow@noaa.gov.

This information is also posted on the NWS IDP DataFlow
change notices web page. The url is listed below.

https://www.weather.gov/datamgmt/notices

IDP DataFlow
NCO Implementation & Data Services Branch
College Park
GISC Washington Sends
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