ARGOS-3/4
Pilot Projects
Dedicated to Met-Ocean Applications
Satellite Network
EUROPE / EUMETSAT
USA / NOAA
INDE / ISRO
NOAA IJuillet 1993
NOAA JDéc. 1994
NOAA K05/1998
NOAA L09/2000
NOAA M 06/2002
NOAA N 05/2005
NOAA N’2009
NPOESS C101/2013
METOP-A10/2006
METOP-B2011
METOP-C2015
SARAL2010
ARGOS 1 ARGOS 2 ARGOS 3
ARGOS 3
ARGOS 3
ARGOS 4
ARGOS Instruments in Operations
NPOESS C212/2015
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,
A typical Argos-3 buoy integration
MET – SVP B ID 82276
MET – SVP B ID 82276
Clearwater/ Deployed by IMEDEA Med. Sea - SVP BG 82233
ClearSat-15-III drifter
Deployment South of Majorca
Argos-3 SVP BG - ID 82233Argos-2 SVP - ID 94128
Argos-3 performances
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
Float Pops-Up
Tx
Rx: OFF Is th
ere
a sa
telli
te
over
-hea
d?
Rx: ON
$ NolockRx: ON $ Nolock $ Nolock
Transmissions of Low Resolution profileTr: 50 to 60 sec.
(Each message is different)
$ lock $ lock
Argos-3 satellite pass
Op
en s
essi
on r
eque
st
Go
!U
ser
mes
sage
1
AC
K m
sg1
Use
r m
essa
ge 2
AC
K m
sg2
Use
r m
essa
ge 3
AC
K m
sg3
M1
M2
M3
M4
M5
M6
End of transmissions of Low ResolutionProfile if needed then transmission of
High resolution profile if decided by FA
………………..
3 min
1 sec.
Approach # 1• Less time on surface (16 msgs, N=3, Tr: 30 sec.)
Approach # 2
DeploymentDay: D
Parking depth
X0 days(setting)
Y days
Rendez-vous in Y days
Z days
Rendez-vous in X0 days(optional)
Rendez-vous in Z days
Surface
Profiling depth
15
-min
ute
sa
t. p
ass
15
-min
ute
sa
t. p
ass
Up to 80 messages Tx and ACK by satellite
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,