Winds and Air Pressure So we just learned that winds are created by pressure variations in the atmosphere. These pressure fields are shown on weather charts by a series of isobars, or lines of constant pressure. Just like how contours on a topographic map mark areas of equal elevation, iso...
"When the waters are warmer, it tends to mean you have lower pressures. It means a more unstable atmosphere, which is conducive to hurricanes intensifying," saidPhil Klotzbach, an atmospheric scientist at Colorado State University. "These thunderstorms, which are the building blocks of hurricanes,...
The EPA classifies methane as a "super pollutant" and says that over 100 years, one ton of methane released into the atmosphere "traps 28 times as much heat in the Earth system as one ton of emitted carbon dioxide." On a 20-year time scale, it's 84 times more potent, accordin...
Other factors help determine maximum potential intensity, such as the heat in the atmosphere and temperature of the cloud tops, which determines how quickly heat can move from sea surface to the top of a storm, and wind shear, which is the difference in wind speed and direction at different ...
Why is the water cycle important? What are the main processes in the water cycle? What is the purpose of the water cycle? How did Henry Cavendish discover water? How are trees involved in the water cycle? How does the water cycle affect the atmosphere?
Uncertainties in weather forecasts are due to three core factors. Inaccurate and/or incomplete description of the initial 3D state of the atmosphere; inaccurate and/or incomplete descriptions of physical processes in modelling systems ; and the chaotic character of the atmosphere. ...
Radiational frost or freeze happens on clear nights when the heat rises into the atmosphere and leaves surfaces colder. Advective frost or freeze is when a cold air mass moves in, creating a sudden drop in temperature. Know Your Hardiness Zones The USDA Plant Hardiness Zone Map determines which...
Module, PAO, separate from theDescent Module. During a nominal landing, the separation of three modules takes place at an altitude of 140 kilometers over the Arabian Peninsula. The Descent Module with the crew heads for landing, while the two other compartments burn up in the atmosphere. ...
1. What actions are needed in order to prevent climate change? This can be called the benchmark of ecological effectiveness for any action plan that emerges. Such a plan must ensure that the build up of greenhouse gases is not only arrested but reduced as fast as p...
The Whirling Winds of Change The wind tunnel the Wright Brothers built helped changed the course of human technological history. Stringer/Hulton Archive/Getty Images Because whirling arms chopped the air and created wake that invalidated many experiments, scientists needed calmer, artificial winds....