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Data Samples / Analog Sidescan Samples

COUNTESS OF URNE IN PORTLAND HARBOR, UK

• The Widescan II dual-frequency (100 and 325 KHz) analog sidescan was made by Ultra Electronics, of Weymouth, England.
• Widescan II Analog sidescan image of the Countess of Urne, in Portland Harbor.
• Sidescan data were processed at 10-cm resolution in GeoDAS-Desktop and map annotations were added in ER Mapper.

Below are data samples we currently have for OIC-supported analog sidescan sonars.
(Hover over each thumbprint photo to enlarge it.)

ORKNEY ISLANDS, UK

• The C-MAX CM 800 sidescan is made by C-MAX Ltd., of Dorset, UK.
• Shown is sidescan sonar mosaic of data acquired off the Orkney Islands, by Matt French of Fathoms, Inc.

ALA WAI CHANNEL, HONOLULU, HI

• The EG&G 272/260 dual frequency, analog sidescan was manufactured by EG&G Marine Instruments of Massachusetts, USA.
• EG&G Marine instruments is now doing business as EdgeTech, with offices in Massachusetts and Florida.
• EG&G sidescan data collected with GeoDAS-PC were processed at 30-cm resolution and superimposed over the SPOT satellite image in ER Mapper.

ST JOHNS, US VIRGIN ISLANDS

• The Klein 595 sidescan/sub-bottom system was made by Klein Associates, Inc., of Nashua, New Hampshire.
• Sidescan data were collected by US EPA as part of fish habitat survey.
• 25 lines of mosaic images were created at 20-cm resolution in GeoDAS-Desktop and collaged together in ER Mapper.

ROCK AREA #3, DELAWARE RIVER, NJ

• The Klein 2000 sidescan system was made by Klein Associates, Inc.,of Nashua, New Hampshire.
• Data were collected by US Army Corps of Engineers Philadelphia District.
• Original data stored in Klein format were converted to OIC format and processed in OIC Toolkit on UNIX.
• Then line-by-line mosaic images (10-cm resolution) were created in GeoDAS-Desktop and collaged together in ER Mapper.
• AutoCAD DXF file were superimposed over the sidescan image in ER Mapper.

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