Sentences with phrase «palaeo ice»
What is palaeo ice sheet reconstruction and why do scientists spend so much time doing it?
http://myintimcity.com/ Not exact matches
Flow and retreat of the Late Quaternary Pine Island - Thwaites palaeo - ice stream, West Antarctica.
At the Last Glacial Maximum, palaeo - ice streams extended to the shelf edge in West Antarctica and in the Antarctic Peninsula, but in East Antarctica they usually were restricted to the mid-outer shelf [44].
Other researchers look at raised beaches [32] and palaeo lakes to record previous rates of isostatic uplift and rates of sea level rise [33, 34]; this can help constrain previous ice volumes and rates of ice loss.
But what this also means is that palaeo climatology has to start all over again, from scratch and that is even before 1830 and the observations of Louis Agassiz about Ice ages.
Quantitative measurement of the sea ice diatom biomarker IP25 and sterols in Arctic sea ice and underlying sediments: further considerations for palaeo sea ice reconstruction.
The other issue is palaeo - climate: you need warming other than Milankovitch effects to come out of ice ages at the required rate.
A basic example would be sea level, it takes time to melt ice at a certain temperature, so therefore any measurement of palaeo - sea level would be offset from the period of warmth with which it is related, as the ice that would melt from such warmth would take a certain period of time to then effect the sea level (and then effect other proxies such as corals, and so on).
In a paper in Nature this week, scientists present palaeo - oceanographic evidence that deep convection of surface waters in the North Atlantic — the engine that keeps the AMOC in constant motion — began to decline as early as around 1850, probably owing to increased freshwater influx from Arctic ice that had melted at the end of a relatively cold period called the Little Ice Age (D. J. R. Thornalley et aice that had melted at the end of a relatively cold period called the Little Ice Age (D. J. R. Thornalley et aIce Age (D. J. R. Thornalley et al..