Earth Snapshot RSS Feed Twitter

Posts tagged UK

Green and Blue Phytoplankton Bloom Southwest of Ireland and UK

49.5N 9.6W

June 5th, 2013 Category: Phytoplankton MODISTerra

Ireland and UK – June 4th, 2013

Phytoplankton are possibly the most important group of organisms on the planet as they generate most of the oxygen that we breath. Also, as they convert inorganic nutrients and sunlight into vegetative matter, most marine food chains depend on their presence as a primary food source.

Most individual phytoplankton are too small to be seen with the naked eye. When present in high numbers however, their presence may appear as dramatic discoloration of the water, as is the case in this image of a bloom southwest of Ireland. This population growth can be rapid, and typically occur when temperature and nutrient levels rise, usually in late Spring and Autumn. The colour of a bloom can vary from a green to a dark red colour depending on the phytoplankton present.

While blooms can provide more food to organisms higher up the food chain, too much phytoplankton can also do harm. Dissolved oxygen becomes rapidly depleted as the phytoplankton die, sink to the bottom and decompose. This can result in the death of other organisms including shellfish, crabs and fish (click here for more information).

Sediments of East Anglian Plume, United Kingdom

71.5N 23.4E

May 28th, 2013 Category: Sediments

United Kingdom – May 27th, 2013

There is seasonal variation in the suspended sediment distribution in the Southern North Sea. The East Anglian plume, a region of relatively high concentrations, develops eastward from eastern England across the Southern Bight during the winter. During the summer the plume concentrations are lower.

Scientists studying the fluxes within the plume suggest that 6.6×106 t of suspended matter was transported eastward in one year, with possible errors of ±50%. Comparison with published sediment budgets for the coastal area of eastern England shows that the plume constitutes a major feature transporting sediment across the North Sea (click here for more information).

Vegetation Index of United Kingdom and Ireland

53.2N 2.3W

November 12th, 2011 Category: Vegetation Index

UK and Ireland - November 12th, 2011

This FAPAR image shows the vegetation index of the United Kingdom and Ireland, in northern Europe. England, Scotland and Wales are separated from Northern Ireland and the Republic of Ireland by the Irish Sea.

The index is generally good (green) throughout, although some areas of low activity (yellow) can be seen in southern Ireland and in Scotland (upon opening the full image). Patches of high activity (rusty red) are sparse.

Outskirts of London and Southend-on-Sea by Thames Estuary, United Kingdom – July 26th, 2011

51.5N 0.7E

July 26th, 2011 Category: Image of the day

UK - July 25th, 2011

This wide-swath ASAR image shows the southeastern shores of England, United Kingdom. Partially visible as a white area at the far left are the city of London and its outskirts.

The River Thames can be seen flowing through the city and later widening into the Thames Estuary. The bright white area on the northern shores of the estuary is the city of Southend-on-Sea.

Phytoplankton in North Sea Between UK and Norway

59.6N 0.2E

June 11th, 2011 Category: Phytoplankton

UK - June 10th, 2011

A  bright green and blue phytoplankton bloom colors the dark waters of the North Sea, between the United Kingdom (lower left) and Norway (upper right).

Such blooms are “explosions” of a phytoplankton population that occur when sunlight and nutrients are readily available to the plants, and they grow and reproduce to a point where they are so dense that their presence changes the color of the water in which they live.