ARGOS Developments & Improvements• 8 new HRPT antennas since January 2010 • 2 production...
Transcript of ARGOS Developments & Improvements• 8 new HRPT antennas since January 2010 • 2 production...
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ARGOSDevelopments & Improvements
DBCP 27 Meeting - GenevaSeptember 2011
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System Improvements
• 1 new global receiving station (1/2 orbit) for METOP-A in Antarctica
• 8 new HRPT antennas since January 2010• 2 production Database servers in France have been
replaced by 2 new and powerful database servers • Implementation of the new Argos location method
(Kalman filtering algorithm)• Implementation of multi-broadcast of Argos-3 commands• Improvement of the Argos web functionalities and
performances• Improvement of the Argos data processing performances
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New Global antenna for Metop Page 3
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Reduced timeliness for MetOp DataPage 4
New global MetOp A station at McMurdo / Antarctica (1/2 orbits) since 08/06/2011. Timeliness for data collected in the view of this antenna has improved from 115 to 65 minutes.
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METOP-A Data Mean Disposal Time before (mn) Page 5
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Real‐time receiving stations network
A robust system that uses 60 stations
DBCP request : Better coverage of the Indian Ocean as well as South Atlantic
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METOP-A Data Mean Disposal Time after (mn) Page 7
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ARGOS ground stations network upgradeSteps
1 System design studies and engineering Done2 NOAA/METOP/SARAL receiver
developmentDone
3 Upgrade of 3 CLS stations Done4 Upgrade of 9 non-CLS stations In progress
(4/95 Procurement and installation of two new
ground stations2012
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ARGOS ground stations network upgradePage 9
Existing stations (Upgrade CLS) New Station (2)
ES&S / New Zealand and Australian stations
MOL
THL
MAL
RBL
LMLASL
SAL
RNL
RSL
XOL
HTL
BLLCFL
NZL
DVL
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DBCP SCIENTIFIC AND TECHNICAL WORKSHOPOBAN, SCOTLAND
SEPTEMBER 27, 2010
GLOBAL Data time availability (in minutes) with the current Argos real‐time network
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DBCP SCIENTIFIC AND TECHNICAL WORKSHOPOBAN, SCOTLAND
SEPTEMBER 27, 2010
GLOBAL Data time availability (in minutes) with the Argos real‐time network upgraded
Page 11HRPT-A4
Satellites: NK, NL, NM, NN, NP, MA, SR
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HRPT transmission on MetOp-APage 12
Ascending Passes
Descending Passes
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Argos‐3 implementation plan
To convince and to encourage users and manufacturers to use
PMTs and Argos‐3 functionalities
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New location processing
Received Doppler Frequencies(at least 1)
ProcessingQC
Using: speed, Tx Frequency,..
PositionMax possible speed
Previous set of positions
Max speed(setting)
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Class locations with new processing
Class Nb of received messages
Error Estimation (m)
3
At least 4
<2502 250 - 5001 500 - 15000 >1500A 3 YES (*)B 1 or 2 YES (*)
ClasseZ Invalid Positions
(*) Could be better than Class 0
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Better position accuracyPage 16
Applications 4 messages and over 2 et 3 messagesBirds 0 % 40-45 %Land Animals 2-6 % 60-65 %Marine Animals 10-15 % 10-50 %Boats 15-20 % 40-50 %Drifters 13 % 50 %
Gain on Median (position obtained from a GPS receiver)
Applications 4 messages and over 2 et 3 messagesBirds 4-15 % 40-70 %Land Animals 0-25 % 80-90 %Marine Animals 75 % 45-75 %Boats 30-35 % 40-70 %Drifters 26 % 84 %
Gain on 95 % centile (position obtained from a GPS receiver)
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Processing performances
• On June 1st 2011 CLS switched all drifters on this new Kalman process
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Web improvements
Improvement of the Argos web functionalities and performances.
• Access of the Argos web through a PDA or a smart phone,
• Creation or renewal of a SUA,• Request for new Id numbers,• Consultation of the most recent observation,• Filter option to get correct checksum only,• Display of locations of the observations.
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More improvements• Multi-broadcast of Argos-3 commands• Processing centre upgrades for Saral• Monitoring of the satellites housekeeping telemetry• Improvement of the Argos data processing
performances: HK, TM processing &value added processing.
• Pay bills online• BUFR coding for SYNOP observations is in
validation. Deadline = end of 2011.• CLS will implement of the latest BUFR version (V.4)
for all platform-templates in the Argos-GTS processing centre. Deadline = end of 2011..
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