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Development of the SVP-B drifter idea to have more data and less its cost
Motyzhev S.*, Brown J.**, Horton E.**, Lunev E.*, Kirichenko A.*, Tolstosheev A.*,Yachmenev V.*
* Marine Hydrophysical Institute NASU/Marlin-Yug Ltd, Kapitanskaya,2, Sebastopol, Ukraine, 99011** Naval Oceanographic Office, 1002 Balch Boulevard, Stennis Space Center, MS 39522-5001,USA
Lifetime 2 yearsID16330/WMO61525
Black SeaDecember 2001 – October 2003
1999 – 2004
Technological stage of development
Three rotations around the Black Sea
SST
AP
Lifetime 2 yearsID27136 / WMO33514
South AtlanticDecember 2002 – October 2004
1999 – 2004
Technological stage of development
Buoy’s trajectory Air pressure
2003
”Smart” Buoy Project
20022002A System of Complementary NetworksA System of Complementary Networks
2003
”Smart” Buoy Project
20022002Future drifter monitoring for different areas of
applications might be provided with flexible self-controlled
drifters networks with sensor data analysis by buoy’s
processing possibilities and selection of necessary technical
status of buoy according to velocity and amplitude
variability of parameters under control
2003
”Smart Buoy” Project
ParameterStandard
mode
Storm
mode
AP resolution (hPa) 0.1 0.05
AP dynamic range (hPa)
850.0 to 1054.7 930.00 to 1032.35
APT dynamic range (hPa)
-25.5 to +25.6 -12.75 to +12.80
Interval between samples (min)
60 15
AP measurement
Standard algorithm
40 AP samples (40 s).
Median of the lowest 3 points.
Median within 1 hPa
10 standard measurements within 15 minutes with 90 sec interval.
Average of 10 medians
Rank for data transfer 1(0) 4 (0, 1, 2, 3)
SVPBD2 drifter (Storm Buoy)
2003
SVPBD2 Storm Buoy
Jul 2003--Sep 2004
Hurricane FABIAN
Goal of 2003 experiment in the
Tropical Atlantic
Investigation of the ways of
tropical waves transformation in
AP depression and so on
29 Aug-1 Sep2003
Developments of the “Smart Buoy” idea in 2004
PTT МТ-105АCLS Type approval -2004
Programming of Argos-2 channels (S1-S14)
Size: 100 80 20 mm
Weight: 90 г
Sensor board ММ400
AP and up to 300 temperature sensors distributed within 600 м
Size: 80 50 20 mm Weight: 65 г
New Electronics of the “Smart Buoy”
Developments of the “Smart Buoy” idea in 2004SVPBD2T (temperature) drifter
Sensorof subsurfacetemperatureat the end of
tether line
Two complete buoys within a shipping crate
Parameter 2003 Storm Buoy 2004 Storm Buoy
Number of satellites 3 2
Data format DBCP-M2 Cut AP&APT range Standard + extra bits
Repetition period 15 min 30 min
Rank 4 5
AP resolution 0.05 hPa 0.1 hPa
Developments of the “Smart Buoy” idea in 2004SVPBD2T (temperature) drifter
Goal of 2004 experiment
in the Tropical Atlantic
Investigation of SST and SBT
variety before, during and
under the tropical storms
Hurricane Frances
August 2004
Developments of the “Smart Buoy” idea in 2004SVPBD2TC (chain) drifter
Sensorof subsurfacetemperatureat the end of
tether line
9 temperature sensors of chain17, 22, 27, 32, 37, 42, 47, 52,
57 m
Sensorof subsurfacetemperatureat the end of
tether line
Developments of the “Smart Buoy” idea in 2004SVPBD2TC (chain) drifter
Novelties:1. Quasilagrangian drifter2. Stabilization of a depth of chain’s upper point
Goal of 2004 experiment
in the Black SeaTesting of new drifter andvalidation of remotesensing data.
Thermocline variability after data processingCooling of upper water from 7 to 13 September
Developments of the “Smart Buoy” idea in futureSVPBD2L (light) drifter
Goal: Effectiveness of drifter observations Decrease of size and price of buoy Decrease of attendant costs (shipment, storage, etc.) Additional measuring possibilities
Ways: New electronics Surface float with Ø25-30 cm Holey Sock with Ø60-65 cm and 5-6 m length Additional sensors and indirect measurements
Parameters Standard Additional
Subsurface Current (15 m) Subsurface Temperature (12 m)
Sea Surface Temperature Profile of Temperature (15-100 m)
Battery Voltage Profile of Subsurface Currents
Air Pressure Parameters of Surface Waves
Air Pressure Tendency Adaptive measurements
Conclusion
1. It seems the technological stage of drifter technology to have reliable standard data is closely to be completed
2. Future activity of drifter community might be directed to have more data with less cost of measurements
3. One of the possible ways for realization of this goal could be the development of SVPB drifter having less sizes and additional low-cost set of sensors with direct and indirect application of their data
Presentation on
Development of SVP-Drifter for More Data at Lower Cost
Author(s) Name :Dr Sergei Motyzhev, Ukraine
WMO IOC
18-19 October 2004 Chennai, India.
Tuesday, 19th October 2004
WMO