Cover Image

Lough Neagh Water Clarity Determination

Main Creator: Foy, Bob, photographer
Contributors: Federation of Local History Societies (Ireland)
Summary:A crude measure of water clarity is obtained by a secchi disc. This white disc, named after its Italian inventor, is lowered into the water. The point at which it disappears from view is noted. In Lough Neagh the secchi depth is slightly less than 1 meter for most of the year. If little or no algae were present the depth would be around 4m.
In Collection: Our Own Place Photographic Project
Format: Photo
Published / Created: 30 Aug 1995
Notes:Project sponsored by RTÉ and Fuji Photo Film (Ireland) Ltd.

Film number: U23 ; frame number: 17

Antrim and District Historical Society

Photograph taken on 30 Aug 1995.

Physical description: 1 photograph ; 15 x 10cm.

Geographic Coverage: Lough Neagh, Co. Antrim, Province of Ulster, Ireland.

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Reproduction rights owned by the National Library of Ireland.