NEW PATHS. NEW APPROACHES

Satellite Derived

Bathymetry

Performance and

Production

Véronique JégatIIC Technologies

Shachak Pe’eri, CCOM-JHC UNH

Ricardo Freire, CCOM-JHC UNH

Anthony Klemm, NOAA

John Nyberg, NOAA2016 Canadian Hydrographic Conference – Conférence Hydrographique du Canada 2016

Halifax, NS May 16-19, 2016 – Halifax, N.É. du 16 au 19 mai 2016

NEW PATHS. NEW APPROACHES

• Another tool to the

hydrographer

• High value for: Planning

Chart QC

Added chart contents:• Remote shallow areas

• No other recent source data

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Satellite Derived Bathymetry

Single beam

Multibeam

LIDARSDB

NEW PATHS. NEW APPROACHES

Satellite Derived Bathymetry

3

You are here

Hartlen Pt, NS, Canada

2km

SDB, ERS LIDAR, ERS

NEW PATHS. NEW APPROACHES

Satellite Derived bathymetry

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Cloud cover

Real feature

Visible on both images

April 2015Biological growth May 2015

Visible Ice/ water turbidity

February 2015

Halifax

15km

NEW PATHS. NEW APPROACHES

Satellite Derived Bathymetry

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NEW PATHS. NEW APPROACHES

• You can do it (GEBCO Cook book)

6 simple steps

Standard GIS tools

Publicly - available satellite imagery

(multispectral)

Easy steps for a trained

hydrographer

• Professional Services

Large volume processing faster

Augmented skill resources

Expertise support

Consulting

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Who can do it ?

NEW PATHS. NEW APPROACHES

SDB Policies

• NOAA implementation Policies – NOAA

Nautical Chart Manual

Procedures in place

Support IHO for

developing nations

activities

Coastal Area

Misleading chart data or

dynamic seabed

No critical under-keel clearance

requirement

No recent survey

(acoustic or ALB)

SDB

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NEW PATHS. NEW APPROACHES

SDB Products

• Cartographic

Representation Approximate depth curves

CATZOC “C”• Full area search not

achieved, depth anomalies

may be expected

• Low accuracy survey

• Uncertainties (Coming

Soon)

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NEW PATHS. NEW APPROACHES

• Dynamic area Temporal

changes in

channels

Changing

coastline

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Thank You

Landsat – Apr 2015 vs. legacy chart 4236

1km