The El NiÃ±o provided NASA and NOAA an unprecedented opportunity to test the effectiveness of this new observation tool. OCO-2 is NASAâs first satellite designed to measure atmospheric carbon dioxide with the precision, resolution, and coverage necessary to quantify regional carbon sources and sinks.
Definition of LAVA FLOW. : a stream or sheet of molten or solidified lava. ADVERTISEMENT. This word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis.
Lava is molten rock that flows out of volcanoes. Depending on its composition, lava can be categorized as basaltic, andesitic, or rhyolitic. The different types of lava move in different ways including pahoehoe, A'a, sheet, and block flows. Lava cools and becomes igneous rocks.