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Nearby Nature GigaBlitz finalists, 06/12 > Tropical Asia - Beach Shingle, Singapore by eyap

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About This Gigapan

Taken by
eyap eyap
Explore score
0.14 Gigapixels
Date added
Jun 21, 2011
Date taken
Jun 21, 2011

Animal, vegetable or mineral? Taking a walk along a sandy beach, one might assume that what one is stepping on is mineral. Until one examines the shingle underfoot, then, does one realize that it comprises mostly parts of animals !

Singapore island is only 40km wide, so the nearest sea coast is at most 20min drive from anywhere. I often go to beaches to comb, photograph or sample shingle (shell and coral debris) from the intertidal zone of beaches. The ecological diversity of the inter-tidal zone habitat can be estimated from the comfort of one's home, by the many species of coral, mollusc and other marine invertebrates represented amongst the shingle fragments and micro-shells.

The nature and composition of such shingle gives an indication about the health of the marine environment. This particular shingle sample was taken from a beach just next to Changi Airport. Recent land reclamation on a nearby island could soon alter the composition of beach shingle. Hence this Gigapan is a snapshot of this habitat's health.

The sample was scanned on Canoscan 9000F flatbed document scanner at 1200dpi in two passes and stitched with GigaStitcher. As a reference, the dimensions of this entire scan area are A4 (8.5in x 11.7in or 216mmx297mm). The most common shell, the Button Shell (Umbonium vestiarium) typically ranges from 5-10mm in diameter.

Here's another sample taken from the same beach a year earlier. The samples are similar: gigapan.org/gigapans/80112/
by Eya Pesach

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Stitcher Notes


GigaPan Stitch version 1.0.0804 (Macintosh)
Panorama size: 140 megapixels (14036 x 10004 pixels)
Input images: 2 (2 columns by 1 rows)
Field of view: 0.8 degrees wide by 0.6 degrees high (top=0.3, bottom=-0.3)
All default settings
Original image properties:
Camera make: Canon
Camera model: CanoScan 9000F
Image size: 7500x10000 (75.0 megapixels)
Capture time: unknown
Aperture: unknown
Exposure time: unknown
ISO: unknown
Focal length (35mm equiv.): unknown
White balance: unknown
Exposure mode: unknown
Horizontal overlap: 12.9 to 12.9 percent
Computer stats: 8192 MB RAM, 4 CPUs
Total time 51 seconds (26 seconds per picture)
Alignment: 7.6 seconds, Projection: 4.5 seconds, Blending: 39 seconds
(Preview finished in 18 seconds)

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