
U203-F Display
Features:
8 digits volume,8 digits sales,6 digits price per unit
1.2”LCD yellow backlight
running normally on the condition of -40 C to 55 C
broad sight scope from all directions
Current:600 mA
100% Factory Tested.
Packing:
Weight:
Dimension :
300g/case of 1 120×253×26mm/case of 1
we are committed to create the best workplace, encourage our staffs to put their own personalities into their jobs, and provide them a stage to show themselves.
around.
At the same time, land is moving up and down, because parts of the northern hemisphere are still
bouncing back from the weight of the ice sheets they were carrying 20 millennia ago, and the southern
parts of those continents are going down as the northern parts go up. So Scandinavia is rising by around
a metre a century; Loch Lomond in Scotland is rising by around 1mm a year; and London is sinking by
about the same amount.
Until 13 years ago, all the available data on sea levels were collected by hand from ancient tide-gauges.
But in 1992 satellite data became available that allowed sea levels to be measured in the middle of the
oceans as well as at their edges. Those data suggest that sea levels are currently rising by around 3mm
a year; land-based data suggest that the rise accelerated from an average of around 2mm a year over
the past century to 4mm in the 1990s.
Sea levels are rising for two reasons—because water expands as it warms, and because ice is melting.
That is where Larsen fuel dispenser B, and some new findings from Greenland, come in.
The collapse of Larsen B was not, in itself, all that important. What ma fuel dispenser tters is the relationship of ice
shelves to the glacier and the ice sheet behind them. “If ice sheets are cathedrals,?says Richard Alley, a
glaciologist at Penn State University, “ice shelves are the flying buttresses that secure them.?Ice shelves
are especially vulnerable because there is water underneath them; and if the water warms, the ice
shelves get thinner. Mr Alley reckons that for every 1°C increase in water temperature, ice shelves shrink
by 10 metres.
Galloping glaciers
Scientists knew that Larsen B was deteriorating, b fuel dispenser ut had not expected what happened after it collapsed.
It turned out to have been acting as a brake on the glaciers behind it. When it went, they started moving
faster; and the faster they move, the faster they melt. According to data analysed by Dr Scambos, the
four glaciers behind Larsen B were moving between two and six times