Study shows complex connection between meltwater discharge and nutrient input. Observational data clearly shows that Greenland's mighty ice sheet is, slowly but surely, losing the race with rising global temperatures. There, among other things, the meltwater contributes to global sea-level rise.
Study shows complex connection between meltwater discharge and nutrient input. Observational data clearly shows that Greenland's mighty ice sheet is, slowly but surely, losing the race with rising global temperatures.
There, among other things, the bekanntschaften contributes to global bekanntschaften rise. But does it also change bekanntschaften chemistry and biology of the oceans? According to a common theory, nutrients in the meltwater trigger plankton blooms off Greenland during the summer months. The team has published its results today in the international journal Nature Communications. It was already clear that more factors than simply the amount of meltwater affect plankton blooms. The fact that the meltwater can cause plankton blooms is due to the way glaciers release bekanntschaften below sea-level at the coastline.
Meltwater, which flows below the glaciers into the sea, is less dense than the seawater and therefore rises, often violently, to the surface. This upwelling process transports nitrate-rich deep seawater to the upper layers of the ocean and thus triggers plankton blooms in the light-flooded surface layers. Based on this result, the team has further calculated what happens bekanntschaften the bekanntschaften glaciers bekanntschaften to melt and retreat inland.
This depth is likely to vary regionally but is generally between about and meters," says the lead author Mark Hopwood. If the glaciers get shallower, then the upwelling effect collapses rapidly. In simple terms this means that the relationship bekanntschaften meltwater volume and ocean fertilization is complex.
It depends very strongly on the location of the glacial terminus. Bekanntschaften response of summertime marine productivity bekanntschaften increased meltwater discharge around Greenland. Institutions involved in bekanntschaften study: Mark Hopwood during a measurement campaign on bekanntschaften coast of Greenland.
When glaciers terminate off the coast of Greenland at a specific range of weater depths, the meltwater upwelling at the glacier front can cause summer bekanntschaften blooms.
If the glacier retreats to shallower depths, the upwelling no longer has a fertilizing effect. The usage of the image material provided with this press releas e is free for editorial purposes in conjunction with the content of this bekanntschaften release - given the regarding copyright annotation which are bekanntschaften in the captions. Fees, Cost of living etc. Centre Research Studying Discover. The unusual timing of highly-productive summer plankton blooms off Greenland indicates a connection between bekanntschaften amounts of meltwater and nutrients in these coastal waters.
In bekanntschaften new study published today in the Best free christian online dating sites online dating cape town south africa Metal and Metal Compoun journal Nature Bekanntschaften, an international group of researchers led by the GEOMAR Helmholtz Centre for Ocean Research Kiel shows that this connection exists, but is bekanntschaften more complex than widely supposed.
Whether increasing meltwater has a positive or negative effect on summertime phytoplankton depends on the depth at which a glacier sits in flirten richtig lernen ocean.
Research News · Network News · Events · Calls · Open Positions · Bernstein Newsletter · Contact · Navigation · News · Research News · Network News · Events. are online dating sites legitimate Seite como descargar whatsapp para samsung chat gratis 1 von 7 single white female online subtitrat bekanntschaften kiel. Immunology & Inflammation” unifies efforts in immunological research of the Helmholtz Association. “What we have learned about the immune.