Other than tectonic activity, what can reshape a world’s surface?
GeographyAsked by: Katelyn Roy EROSION. Wind, water, and ice are the three agents of erosion, or the carrying away of rock, sediment, and soil. Erosion is distinguished from weathering — the physical or chemical breakdown of the minerals in rock. However, weathering and erosion can happen simultaneously. What are the two types of force that
Could glacial melt alter plate tectonic movement?
Earth scienceAsked by: Katelyn Roy Are glaciers related to plate tectonics? According to new research, the transition to plate tectonics started with the help of lubricating sediments, scraped by glaciers from the slopes of Earth’s first continents. Can melting glaciers cause earthquakes? Scientists have known for decades that melting glaciers have caused earthquakes in otherwise tectonically
What sort of a plate is the Sunda plate?
GeomorphologyAsked by: Jim Greenwood The Sunda Plate is a minor tectonic plate straddling the Equator in the Eastern Hemisphere on which the majority of Southeast Asia is located. The Sunda Plate was formerly considered a part of the Eurasian Plate, but the GPS measurements have confirmed its independent movement at 10 mm/yr eastward relative to
Where can I find a data set containing wetland loss by decade
Earth scienceAsked by: Jim Greenwood What percentage of all wetlands has been lost? It has been frequently stated, but without provision of supporting evidence, that the world has lost 50% of its wetlands (or 50% since 1900 AD). How much wetland has been lost in the US? It is esti- mated that, on average, over 60
Do ice crystals form in running super-cold water?
Earth scienceAsked by: Ellen Belanger At what temperature do ice crystals form? Fig. 1. At temperatures above 0°C, water remains a liquid. Between 0 and about -36°C, water only crystallises into ice if coerced e.g. by making freezing more likely by there being an ice nucleus, such as a dust particle, present in the water. How
Weather station data
Earth scienceAsked by: Ellen Belanger Where can I download weather station data? Where can I find this information? Check out NCEI’s station locator at: https://www.ncdc.noaa.gov/cdo-web/datatools/findstation or the Historical Observing Metadata Repository (HOMR) at NCEI at: https://www.ncdc.noaa.gov/homr/. What data do weather stations collect? weather stations in the United States measure weather conditions many times every day. Each
What factors determine the number of Hadley cells for a planet?
Earth scienceAsked by: Philip Page So the number of cells will be determined by the winds that start either at the equator or the pole and the distance that they can cover before being deflected into completely zonal direction. What are global atmospheric circulation cells made of? The global circulation can be described as the world-wide
Does the snow come from local moisture or transported moisture?
Earth scienceAsked by: Philip Page The moisture comes from nearby water bodies, and then it’s transported to where it’s going to precipitate. It is local and transported moisture. Is there moisture in snow? Liquid equivalent is the amount of measurable moisture if the snow were to have fallen as rain. This is where the infamous “10-to-1”
Why does the earliest sunset time not coincide with the shortest day of the year?
Earth scienceAsked by: Quintin Prestige It changes throughout the year because the earth’s axis is tilted with respect to its orbit around the sun, and the earth’s orbit is an ellipse. The longer-than-average solar day around the solstices causes both earliest sunset and latest sunrise to not fall on the solstice. What is the earliest sunset
Is there a list of instances where mountains that have been mined out of existence?
AnthropoceneAsked by: Quintin Prestige What is the oldest mine in the world? The Ngwenya Mine The Ngwenya Mine is located on Bomvu Ridge, northwest of Mbabane and near the northwestern border of Eswatini (Swaziland). This mine is considered to be the world’s oldest. What is mining in geography? Mining is the process of extracting useful