A general presentation about TeamSurv, as used on the Royal Institute of Navaigation stand at the boat show.

2. • Modern surveying is accurate to
a few centimetres

3. • Modern surveying is accurate to
a few centimetres
• It is expensive ~ £4000/square nautical mile
for a multi-beam survey

4. • Modern surveying is accurate to
a few centimetres
• It is expensive ~ £4000/square nautical mile
for a multi-beam survey
• Hydrographic Offices don’t have the
resources to keep up to date

5. • Until 30 years ago positioning was
by horizontal sextant angles

6. • Until 30 years ago positioning was
by sextant
• Until 50 years ago depth was
by lead line

7. • Until 30 years ago positioning was
by sextant
• Until 50 years ago depth was
by lead line
• Many charts still use this old data

8. • Until 30 years ago positioning was
by sextant
• Until 50 years ago depth was
by lead line
• Many charts still use data over 100 years old
• The UKHO reports that only 49% of coastal
waters are adequately surveyed

9. • Many boats logging data as they go
about their normal business

10. • Many boats logging data as they go
about their normal business
• Build up good coverage with time

11. • Many boats logging data as they go
about their normal business
• Build up good coverage with time
• Use standard instruments – GPS, depth
sounder, compass

12. 0
10
20
30
40
50
60
-0,7
-0,5
-0,3
-0,1
0,1
0,3
0,5
0,7
0,9
1,1
1,3
1,5
1,7
1,9
2,1
%frequency
Depth delta, m
• Many boats logging data as they go
about their normal business
• Build up good coverage with time
• Use standard instruments – GPS, depth
sounder, compass
• Accuracy and coverage good enough for
most purposes up to ~ 100m depth, and
better than old surveys

13. 0
10
20
30
40
50
60
-0,7
-0,5
-0,3
-0,1
0,1
0,3
0,5
0,7
0,9
1,1
1,3
1,5
1,7
1,9
2,1
%frequency
Depth delta, m
• Many boats logging data as they go
about their normal business
• Build up good coverage with time
• Use standard instruments – GPS, depth
sounder, compass
• Accuracy and coverage good enough for
most purposes up to ~ 100m depth, and
better than old surveys
• The more data, the more accurate the
results

14. How to become a logger
• All are welcome to become data loggers
• Register online at www.teamsurv.eu
• To become a logger, go to Join In|Apply
• You get kitted out with the logging tools
• Log data whenever you are on the water
• Upload data to the web site

15. On Board
•Calibration
•Data Logging
Track Ingest
•Upload to web
•Remove bad data
•Ingest data
Corrections
•Geometry
•Speed of sound
•Sea level
•(Vessel motions)
Synthesis
•Combine data
•Remove outliers
Chart Creation
•Geostatistics
•Gridding
•Surface generation
Error analysis
Data display

16. On Board
•Calibration
•Data Logging
Track Ingest
•Upload to web
•Remove bad data
•Ingest data
Corrections
•Geometry
•Speed of sound
•Sea level
•(Vessel motions)
Synthesis
•Combine data
•Remove outliers
Chart Creation
•Geostatistics
•Gridding
•Surface generation
Error analysis
Data display

17. • Uses your standard GPS and depth sounder
• Requires NMEA0183 or Raymarine Seatalk output
• Doesn’t interfere with your existing setup
• Easy installation

18. Hardware logger
– 2 channels NMEA or Seatalk to USB
- supplied on free loan
Software logger for Windows
- works in parallel with PC navigation software
- free download
Works directly with increasing number of manufacturer’s products:

19. How to become a logger
• All are welcome to become data loggers
• Register online at www.teamsurv.eu
• To become a logger, go to Join In|Apply
• You get kitted out with the logging tools
• Log data whenever you are on the water
• Upload data to the web site

20. On Board
•Calibration
•Data Logging
Track Ingest
•Upload to web
•Remove bad data
•Ingest data
Corrections
•Geometry
•Speed of sound
•Sea level
•(Vessel motions)
Synthesis
•Combine data
•Remove outliers
Chart Creation
•Geostatistics
•Gridding
•Surface generation
Error analysis
Data display

21. • Data uploaded to the internet after your sailing
• Just take the USB stick ashore from the hardware logger
• Upload via the TeamSurv web site
• or using the SmartLog software
• Data is checked on upload, bad data filtered out, and errors reported

22. Show all tracks
Highlight your own tracks
Show raw logged depths
(Shows lowest logged depth where
there are multiple data points)

23. On Board
•Calibration
•Data Logging
Track Ingest
•Upload to web
•Remove bad data
•Ingest data
Corrections
•Geometry
•Speed of sound
•Sea level
•(Vessel motions)
Synthesis
•Combine data
•Remove outliers
Chart Creation
•Geostatistics
•Gridding
•Surface generation
Error analysis
Data display

24. Two levels of corrections
Primary: Tide height predictions calculated and interpolated
Secondary: Residuals calculated as difference between tide gauges
and predictions, and then interpolated
Tide prediction
Tide gauge

25. • The speed of sound affects the depth
shown on your depth sounder
• It varies with temperature, salinity
and depth of water
• e.g. 5% difference between English
Channel in summer and
Baltic in winter
• Salinity and temperature obtained
from various sources
• Data interpolated and applied

26. Shows depths along tracks with all corrections applied

27. How to become a logger
• All are welcome to become data loggers
• Register online at www.teamsurv.eu
• To become a logger, go to Join In|Apply
• You get kitted out with the logging tools
• Log data whenever you are on the water
• Upload data to the web site

28. On Board
•Calibration
•Data Logging
Track Ingest
•Upload to web
•Remove bad data
•Ingest data
Corrections
•Geometry
•Speed of sound
•Sea level
•(Vessel motions)
Synthesis
•Combine data
•Remove outliers
Chart Creation
•Geostatistics
•Gridding
•Surface generation
Error analysis
Data display

29. Tracks from all vessels are combined,
creating greater accuracy

30. A grid is generated, with grid spacing varying with
data quantity and quality.
Rogue data is filtered out
Higher accuracy depths are calculated from the data
The grid is interpolated to generate contours

31. MultibeamTeamSurv
Comparison against multi-beam survey for validation:
Mean depth difference: 0.08m
Standard deviation: 0.21m

32. We are just starting chart creation
Limited to areas where we have sufficient data
Gridded data is used to create a chart.
Chart just shows bathymetry (depth) data
Lat/long grid and coastline
shown for guidance
on paper version
Available as a PDF to print off,
or in a number of digital formats

33. Available now:
• PDF to print off and take with you
• Shape file for viewing in GIS applications
• x, y, z data for further processing
Under development
• KML files for Google Earth
• BSB raster format charts
• seaPro GXF format
• Garmin raster and vector charts
• Lowrance charts
• Navico charts
Other formats will be supported based upon
user demand and availability of file formats

34. How to become a logger
• All are welcome to become data loggers
• Register online at www.teamsurv.eu
• To become a logger, go to Join In|Apply
• You get kitted out with the logging tools
• Log data whenever you are on the water
• Upload data to the web site

35. Smartcom Software – Project Coordinator
MPG Software – Software development
Amber Route – French and Lithuanian trials
www.teamsurv.eu
The research leading to these results has received funding from the European
Community's Seventh Framework Programme under grant agreement n° 247998.