Sentences with phrase «seasonal ice layers»

For example, ice cores taken in various locations around the world (Greenland and Antarctica, for example) are excellent proxies; gas bubbles containing CO2 trapped in ancient ice can be measured, and the age can be determined very accurately (by counting the seasonal ice layers, or measuring the isotope levels of oxygen).

Not exact matches

A Seasonal Zucchini Layer Cake, infused with Cinnamon and Orange, and iced with a tangy Cream Cheese Frosting.
Seasonal creamers, savory yogurt, decadent ice cream, velvety dairy alternatives — dairy is a medium for layered flavor profiles that awaken the senses and tickle the tongue.
The ice cores pulled up at WAIS will be dated by counting back these seasonal layers as if they were tree rings.
Continuous annually layered strata provide the best kind of geological archive in which to search for a «golden spike» — these form on the floors of oxygen - starved seas and lakes, in glacial ice, and in corals and trees with seasonal growth rings
In both cases we're talking about seasonal sea ice floating in a thin layer on the sea, next to cold and ice - covered land.
The Arctic ice pack is thinning, and in many years there is also a seasonal hole in the ozone layer.
One explanation for the seasonal offset is that the large summertime snow / ice change alters ground temperatures, and these ground temperature changes are felt more at ground - level during winter when the surface atmospheric layer is most stable.
In arctic regions, the acceleration of permafrost thaw and deepening of the seasonal active layer leads to thaw pond formations due to the organic and ice - rich ground subsiding [1]--[2].
This fresh water, together with melt ‐ water from the melting ice pack in summer forms a permanent superficial layer (usually about 200m deep) of low salinity over the entire Arctic Ocean, without which much less seasonal ice would form.
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