on October 4, 2022
Is it certain that hundred year floods have finite variance?
Earth scienceAsked by: Holly White What is the probability of 100 year flood? a one percent chance The 100-year recurrence interval means that a flood of that magnitude has a one percent chance of occurring in any given year. How often does a 100 year flood occur? every 1 to 30 years ‘100-year’ floods will happen
on October 4, 2022
Is there a way to calculate the ground and 10m temperature from standard 2m temperature measurements?
Earth scienceAsked by: Ayye Mackey How do you calculate surface temperature? 2) surface heat flux equation: H = r. c (Ts – T) / r, where r is the density of air, c its specific heat, and r is the diffusion resistance between the surface and the air. What is the temperature 10 feet below ground?
on October 4, 2022
Why do tectonic plates have a tendency to drift closer to the equator?
Earth scienceAsked by: Ayye Mackey One driving factor of less significance influencing tectonic plate movement is however the Earth’s rotation. Apparently one such effect of the Earth’s rotation is the “PolePoleFrom pole to pole refers to the North Pole and South Pole of a planet; it means all over the world. In Wikipedia’s article on Invictus,
on October 4, 2022
Latitude and Daylight Hours
Earth scienceAsked by: Cortez Herndon latitude, for example, daylight is 14 hours long in June and 10 hours long in December. At 60° N. latitude, daylight lasts for more than 18 hours in June but for less than 6 hours in December. At the Equator there are always 12 hours of daylight. How does latitude affect
on October 4, 2022
When does an island with isthmus become a peninsula?
Earth scienceAsked by: John Bremer Isthmus is a narrow strip of land connecting two larger land areas, usually with water on either side. A peninsula is a piece of land that is almost surrounded by water but connected to mainland (via an isthmus). So a peninsula is often defined as land surrounded by water on three
on October 4, 2022
What is the metamorphic field gradient useful for?
Earth scienceAsked by: Jude Clausen What is a metamorphic field gradient? A metamorphic field gradient (MFG) is defined by the array of maximum temperature conditions preserved by a series of exposed rocks which underwent a common orogenic evolution. What is geothermal gradient in geology? The geothermal gradient is defined as the increase in temperature with depth
on October 4, 2022
What does it take to make a diamond?
Earth scienceAsked by: Jude Clausen Diamond Growth It takes around 2,500 degrees Fahrenheit and 825,000 pounds per square inch in pressure. Add in the carbon and the diamond seed that provides the foundation, to form a raw diamond. What is needed to make a diamond? You’ll need to squeeze the carbon under intense pressure: about 725,000
on October 4, 2022
Dynamic of glacier retreat? (here: in Greenland)
Earth scienceAsked by: Sierra Anderson What happens during glacier retreat? Glacial retreat leaves boulders and masses of scraped-together rocky debris and soil called glacial moraines. Large temporary lakes of glacial meltwater may rupture, causing catastrophic floods and even shifting global climate by dumping freshwater into the oceans and so altering their circulation. Why are Greenland glaciers
on October 4, 2022
What is difference between an atmospheric model and a climate model?
Earth scienceAsked by: Sierra Anderson What is the difference between climate models and weather models? Essentially, climate models are an extension of weather forecasting. But whereas weather models make predictions over specific areas and short timespans, climate models are broader and analyze long timespans. They predict how average conditions will change in a region over the
on October 4, 2022
Are Bond cycles Dansgaard-Oeschger event(s)?
Earth scienceAsked by: Grant Raymer What caused the Dansgaard-Oeschger? The events may be caused by an amplification of solar forcings, or by a cause internal to the earth system – either a “binge-purge” cycle of ice sheets accumulating so much mass they become unstable, as postulated for Heinrich events, or an oscillation in deep ocean currents