ESA - Eduspace PT - Mudança Global - Contribuir para um oceano mais limpo

Mudança costeira

Desflorestação

Parque Nacional de Bardia Bacia do Rio Congo Kameng-Sonitpur Kilimanjaro Rondónia Shillong e Guwahati

Ice

Análise de glaciares utilizando imagens de radar Expedição à Antárctida Alterações climáticas e glaciares Recuo dos glaciares nos Alpes Fluxo de gelo glaciar Monitorização de glaciares nos Himalaias Deteção remota de gelo e neve

Urbanização

Cairo Catmandu Córdoba Himalaias Vale de Catmandu Lagos

Vegetação

Área de Conservação de Annapurna Perdidos nos Andes!Área de Conservação de Ngorongoro Delta Interior do Níger Vegetação da América do Sul

Article Images

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Braer oilspill, Shetland Islands, Scotland

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The Braer oilspill disaster, Shetland Islands, Scotland, January 1993.

Credits: Greenpeace

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Ship dumping sewage in the North Sea.

Credits: Greenpeace/Morgan

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The biggest contributor to oil pollution in the world's oceans is operational discharges from tankers. That is oil dumped during cleaning operations. The amount of oil introduced in the sea by such operations is equivalent to one full tanker disaster every week.

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In a radar image the ocean is black and white

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In a radar image the ocean is not blue but black and white and may also appear to have a lot of strange features. As a general rule, the brighter the sea surface, the rougher the sea (because wind speed is higher). But oil on the water dampens the rough surface and it becomes smooth again, and dark, as is shown in the image.

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Like its predecessor ERS-1 (launched in July 1991 by Ariane 4, the ERS-2 satellite (launched on 21 April 1995 also by Ariane 4) monitors the ground day and night under all weather conditions thanks to its powerful sharp-eyed, cloud-piercing radars. ERS-2 also carries an instrument to help monitor the ozone layer.

Credits: ESA

Derrames de Petróleo

Introdução

Exercícios

Socorro! Uma enorme maré negra está a aproximar-se da costa!Desastre ambiental numa plataforma petrolífera

Links

Norwegian Pollution Control Authority (SFT)

Eduspace - Software

LEOWorks 3

Eduspace - Download

Oil rig environmental disaster (PDF)Help! A huge oil slick is approaching the coast!Help! A huge oil slick is approaching the coast! (using LEOWorks)Help! A huge oil slick is approaching the coast! (report form)Contributing to a cleaner ocean Contributing to a cleaner ocean (report form)Contribuir para um oceano mais limpo (LEOWorks)