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ESA declares end of mission for Envisat | SpaceRef – Your Space Reference

Just weeks after celebrating its tenth year in orbit, communication with the Envisat satellite was suddenly lost on 8 April. Following rigorous attempts to re-establish contact and the investigation of failure scenarios, the end of the mission is being declared. A team of engineers has spent the last month attempting to regain control of Envisat, […]

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New signs illustrate harmful algal blooms, blooms, algal, harmful – Local News – LimaOhio.com

Ohio’s battle against harmful algal blooms is evolving — and a big part of the battle is keeping the public informed. Officials with the state Environmental Protection Agency and departments of Health and Natural Resources had information in mind Monday when they announced this summer’s strategy for harmful algal blooms in recreational waters. via New […]

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NCCOS and International Joint Commission Scientists Prepare to Publish 20 Years of NOAA Mussel Watch Results

NCCOS scientists met with Victor Serveiss, Environmental Advisor to the International Joint Commission (IJC), to put the finishing touches on a Mussel Watch contribution to the next iteration of the Great Lakes Biennial Report set for publication this year (2012). This report provides an overview of NOAA and Mussel Watch monitoring efforts in the region since 1992. The […]

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Complex Control of Cyanobacterial Blooms in Lake Erie by Small Zooplankton and Nutrients

Cyanobacteria (also known as blue-green algae) are on the rise in the U.S. and worldwide, becoming a serious threat to freshwater resources and public health because of their toxins and disruptive effects on ecosystems. Ongoing research funded by the National Center for Coastal Ocean Science is uncovering the secrets of why cyanobacteria are so successful. […]

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Europe loses sight of Earth : Nature News & Comment

With hopes fading fast for the crippled Earth-observing satellite Envisat, researchers are warning that delays to its replacements will leave Europe lacking vital monitoring data for years to come. Launched in 2002, Envisat is the largest environmental satellite ever built and the mainstay of the Earth-observing programme for the European Space Agency (ESA). The 8.2-tonne […]

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Lake Erie’s “Backwards” Circulation Explained

Researchers have discovered that during the summer, Lake Erie circulates in an opposite direction than other lakes in the Northern Hemisphere. Instead of currents rotating in a counter-clockwise (“cyclonic”) direction driven by the rotation of the earth, central Lake Erie has a clockwise current driven by summer winds. This causes a bowl-shaped, or inverted, thermocline that is […]

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Satellite’s Silence Jeopardizes Algal Bloom Forecasts

On April 8, 2012, the European Space Agency lost contact with its main environmental monitoring satellite, a key data source for developmental harmful algal bloom forecasts in Lake Erie, the Chesapeake Bay, and Florida’s east coast. The satellite–Envisat 1–houses the only instrument able to discriminate cyanobacteria from other algae, as well as find intense blooms […]

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International Joint Commission Committed to Address Nutrient Problems in Lake Erie

Lake Erie is the shallowest and smallest of the Great Lakes by volume and is heavily influenced by agricultural and urban runoff.  It is subject to periodic outbreaks of harmful algal blooms (HABs) and hypoxia. These problems were identified as the highest priority of the International Joint Commission (IJC) as it drafts guidelines and targets […]

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