World meteorological organization data buoy cooperation panel annual report for
Table 1 : Status of drifting buoys reporting onto GTS
Download 2.21 Mb.
|
Table 1 : Status of drifting buoys reporting onto GTS A detailed breakdown by countries of "active" drifting buoys and those reporting onto the GTS is given for August 2003 in Annex IV, whereas Annex V shows the number of buoy data onto the GTS per country and sensor for August 2003. Météo-France provided with Data Availability Index Maps on a monthly basis since February 1994 (see examples of these maps in Annex III). The maps are useful to identify the data sparse ocean area for each kind of geo-physical variable and therefore to assist the various data buoy programmes in adjusting deployment strategies. The maps show clearly the impact of the TAO array ATLAS moored buoys (wind), of DBCP regional action groups such as the ISABP (air pressure), or of specific national programmes such as MSNZ (air pressure). 2.2Data reception Each of the five Argos processing centers—in Toulouse, Largo, Melbourne, Tokyo, and Lima—operated without a major hitch in 2003. The two global processing centers in Toulouse and Largo continue to process data sets from all receiving stations, handling over 500 data sets per day. The regional processing centers in Melbourne, Tokyo, and Lima only process data sets from stations covering their region. Supplementary data providing global coverage are supplied by the Toulouse center or by the Largos center if necessary. The Internet was the main communication link used to distribute processed data to users and to retrieve data sets from receiving stations. The Toulouse center has a double access (1 Mbits + 2 Mbits) which improve the reliability of our communication facilities. The same methodology is planned to apply to the Largo center in 2003. Figure 1 shows STIP (Stored TIROS Information Processing) data set arrival times at the Toulouse and Largo processing centers. Ideally, one data set should be received every 100 minutes. 
Figure 1
Table 2 shows the throughput time for delivery of results for stored data from NOAA-17, NOAA-16 and NOAA-15. 29% of the data are available within two hours while 64% of the data are available within three hours.
Table 2: Stored data availability for satellites NOAA-15, NOAA-16 and NOAA-17 Table 3 shows the throughput time for delivery of results for stored data from NOAA-11 and NOAA-14, the two backup satellites.
Table 3: Stored data availability for satellites NOAA-11 and NOAA-14 Only 32 % of the data are available within three hours as opposed to 64% for the satellites NOAA-17, NOAA-16 and NOAA-15. This delay is due to the NOAA data set delivery times. Table 4 below shows the throughput time for delivery of results for real-time data from NOAA-17, NOAA-16, NOAA-15, NOAA-14 and NOAA-12 and acquired by the 33 HRPT receiving stations. 86 % of these real-time data are available within 30 minutes. (Note that about 2/3 of the Argos data are now available in near real time.)
Directory: Documents -> PublicWeb -> amp -> mmop -> documents -> dbcp Documents -> The great global switch-off Documents -> Nonprofit grant application Documents -> The Truth about the Rwandan Genocide Documents -> Annual InStructional unit plan Documents -> Chaos equipment included dbcp -> National reports on data buoy activities documents -> Jcomm expert team on documents -> O. P. Singh saarc meteorological Research Centre (smrc) Download 2.21 Mb. Share with your friends:
|