Posted on October 2, 2022
What is the difference between roughness length and zero plane displacement?
Earth ScienceAsked by: Joseph Salleh What is zero plane displacement? A height scale in turbulent flow over tall roughness elements associated with the average level of action of momentum transfer between the flow and the roughness elements. What is surface roughness length? A measure of the amount of mechanical mixing introduced by the surface roughness elements
Posted on October 1, 2022
What does strata mean here?
Earth ScienceAsked by: Jeff Buford What do you mean of strata? layers Strata definition Strata are two or more stratums, which are layers or levels. An example of strata is layers of soil and rock. noun. 1. Plural form of stratum. What is a strata of people? Word forms: strata A stratum of society is a
Posted on October 1, 2022
Why does wind direction change in a front?
Earth ScienceAsked by: Jeff Buford Do fronts change wind direction? A sudden change in wind direction is commonly observed with the passage of a warm front. Before the front arrives, winds ahead of the front (in the cooler air mass) are typically from the east, but once the front passes through, winds usually shift around to
Posted on October 1, 2022
How do the various types of clouds affect the atmosphere below them in a polluted environment?
Earth ScienceAsked by: Christian Williams How does air pollution affect the clouds? In moderate concentrations, they add more particles to the atmosphere for water to condense onto, enabling clouds to grow taller. If pollution is very heavy, however, the sheer number of particles in the sky blocks incoming sunlight — an effect often visible in the
Posted on October 1, 2022
How does metamorphism change talc into soapstone?
Earth ScienceAsked by: Christine Harris How is soapstone formed? Soapstone is formed by the metamorphism of ultramafic protoliths (e.g. dunite or serpentinite) and the metasomatism of siliceous dolomites. By mass, “pure” steatite is roughly 63.37% silica, 31.88% magnesia, and 4.74% water. It commonly contains minor quantities of other oxides such as CaO or Al2O3. What does
Posted on October 1, 2022
Can Volcanic Eruptions Help Combat Global Warming in the Long Run?
Earth ScienceAsked by: Christine Harris Do volcanic eruptions help global warming? While sulfur dioxide released in contemporary volcanic eruptions has occasionally caused detectable global cooling of the lower atmosphere, the carbon dioxide released in contemporary volcanic eruptions has never caused detectable global warming of the atmosphere. How can volcanoes be beneficial to ecosystems over a long