What is the approximate height and temperature of the stratosphere?
Near the equator, the lower edge of the stratosphere is as high as 20 km (66,000 ft; 12 mi), at midlatitudes around 10 km (33,000 ft; 6.2 mi), and at the poles about 7 km (23,000 ft; 4.3 mi) Temperatures range from an average of −51 °C (−60 °F; 220 K) near the tropopause to an average of −15 °C (5.0 °F; 260 K) near the …
What is the altitude and temperature of the stratopause?
The stratopause caps the top of the stratosphere, separating it from the mesosphere near 45–50 km (28–31 miles) in altitude and a pressure of 1 millibar (approximately equal to 0.75 mm of mercury at 0 °C, or 0.03 inch of mercury at 32 °F).
What is the approximate temperature of the atmosphere?
The thermosphere is typically about 200° C (360° F) hotter in the daytime than at night, and roughly 500° C (900° F) hotter when the Sun is very active than at other times. Temperatures in the upper thermosphere can range from about 500° C (932° F) to 2,000° C (3,632° F) or higher.
Why does stratopause have constant temperature?
At sunlit latitudes, the stratopause is characterized by a temperature maximum near 50 km due to the absorption of shortwave radiation by ozone. During undisturbed conditions, the stratopause in the polar vortices is generally at higher altitudes and is warmer than in midlatitudes [e.g., Kanzawa, 1989].
What is the approximate elevation of the stratopause?
Above the troposphere, the atmosphere becomes very stable, as the vertical temperature gradient reverses in a second atmospheric region—the stratosphere—which extends from the top of the troposphere at approximately 39,000 ft above the surface of the Earth to the stratopause at an altitude of approximately 164,000 to …
What is the approximate height and temperature of the tropopause stratopause and mesopause?
tropopause: about 12-18 km about –60 stratopause: about 46-54 km about –2 to 0 mesopause: about 85-90 km about –90 4. The temperature increases in the stratosphere due to ozone layer capturing ultraviolet radiation.
What is meant by stratopause?
: the transition zone between the stratosphere and the mesosphere : the upper boundary of the stratosphere.
What does the mesosphere do?
The mesosphere is the highest of the atmospheric layers in which gases are all mixed up, instead of being layered in terms of their mass. 18. The mesosphere protects the Earth from meteors and asteroids by burning them up before they can reach its surface.
What is the approximate temperature of the atmosphere at 80 km?
The temperatures begin to fall again to about −90°C at the mesopause, which is about 80 km in altitude. The thermosphere is the uppermost layer of the atmosphere, and the temperatures again begin to rise here. Because the air is dry, the temperatures can rise to over 100°C.
What is tropopause and stratopause?
Tropopause: It is a thin layer that acts as a boundary between troposphere and stratosphere. Stratopause: It is a thin layer separating stratosphere and mesosphere.
What is the temperature of the tropopause quizlet?
-A tropopause of approx. 36,000 ft with a temperature of -56.5 deg C. -An isothermal lapse rate in the stratosphere to an altitude of approx. 80,000 ft.
What is the function of the stratopause and the Mesopause?
The tropopause, stratopause and mesopause play a vital role in the vertical coupling of the Earth’s atmosphere. Height and temperature of these pauses is crucial in investigation of various processes taking place in the atmosphere (Sharma et al. 2006, 2012).
What is the average temperature of the tropopause?
At the equator, the temperature hits -68 degrees C around 17 km high before rising. The average temperature of the entire tropopause is a steady -57 degrees C. The tropopause is coldest over the equator and warmest over the poles because as warm air rises and expands, it sucks up heat energy and cools the atmosphere.
What is the approximate air pressure at the stratopause?
On Earth, the stratopause is 50 to 55 kilometres (31–34 mi) high above the Earth’s surface. The atmospheric pressure is around 1/1000 of the pressure at sea level.
What does stratopause mean?
Definition of stratopause. : the transition zone between the stratosphere and the mesosphere : the upper boundary of the stratosphere.
What happened to be temperature of the tropopause?
As the temperature decreases with height, so the temperature at the tropopause over the poles will be higher than over the equator because the tropopause is closer to the ground here. This is the opposite situation to the surface temperature. Typically, the tropopause temperature is -50°C over the poles and -80°C over the equator.