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ARGOS-3/4 Pilot Projects Dedicated to Met-Ocean Applications. ARGOS Instruments in Operations. ARGOS 1. ARGOS 2. ARGOS 4. ARGOS 3. NOAA I Juillet 1993. NOAA J Déc. 1994. NOAA K 05/1998. NOAA L 09/2000. NOAA M 06/2002. NOAA N 05/2005. NOAA N’ 2009. NPOESS C1 01/2013.
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ARGOS-3/4 Pilot Projects Dedicated to Met-Ocean Applications
ARGOS Instruments in Operations ARGOS 1 ARGOS 2 ARGOS 4 ARGOS 3 NOAA I Juillet 1993 NOAA J Déc. 1994 NOAA K 05/1998 NOAA L 09/2000 NOAA M 06/2002 NOAA N 05/2005 NOAA N’ 2009 NPOESS C1 01/2013 NPOESS C2 12/2015 USA / NOAA ARGOS 3 METOP-A 10/2006 METOP-B 2011 METOP-C 2015 EUROPE / EUMETSAT ARGOS 3 SARAL 2010 INDE / ISRO Satellite Network
Argos-3/4 PP The purpose of creating Argos-3/4 Evaluation Pilot Projects is to • i) independently and objectively evaluate Argos-3 for use by the global Met-Ocean community, • ii) foster Argos-3 integration by manufacturers, and • iii) provide Argos-3 equipped in-situ tools to the community for evaluation (CLS provides SVP and floats)
Argos-3 PP - Drifters • DBCP 2008 in Cap Town, • 4 Manufacturers involved: Clearwater, Pacific, Gyre, Metocean, Marlin Yug, • Buoys produced, tested via satellite and deployed • Hourly Sensor Data collection recovery: > 95%, • About 90% of power supply saving on Tx,
Clearwater/ Deployed by IMEDEA Med. Sea - SVP BG 82233 Deployment South of Majorca ClearSat-15-III drifter
Argos-3 PP - Floats • Ifremer / Webb Research and University of Washington already involved • 11 floats will be produced, and deployed • Goals: • High Sensor Data collection recovery performances, • Higher data volume with secure transmissions (handshaking), • Reduction of the surfacing duration,
Approach # 1 Argos-3 satellite pass ACK msg2 ACK msg3 ACK msg1 Go! M1 M2 M3 M4 M5 M6 ……………….. Open session request User message 2 User message 3 User message 1 Tx Transmissions of Low Resolution profile Tr: 50 to 60 sec. (Each message is different) End of transmissions of Low Resolution Profile if needed then transmission of High resolution profile if decided by FA Is there a satellite over-head? 1 sec. Rx: OFF 3 min Rx: ON $ Nolock $ Nolock $ Nolock $ lock $ lock Rx: ON Float Pops-Up
Approach # 1 • Less time on surface (16 msgs, N=3, Tr: 30 sec.)
Approach # 2 • Up to 80 messages Tx • and ACK by satellite 15-minute sat. pass 15-minute sat. pass Rendez-vous in X0 days (optional) Rendez-vous in Y days Rendez-vous in Z days X0 days (setting) Y days Z days Surface Deployment Day: D Parking depth Profiling depth
Approach # 2 • We focus on a surfacing duration • < 30 minutes
Improvements for floats • High performance for collecting hourly sensor acquisitions • Reduction for the surfacing duration • Large reduction of the power consumption allowing Tx of more sensor information in a secured and robust, • Optimization of the transmission leading to a better use of the satellite network and then better performances for users, • Secured Tx (check sum control), • Remote command to potentially change the mission,