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13 Σεπ 2024 · Over the past 22 years, the mesopause temperature (altitude) in the northern summer polar region has been ∼ 5–11 K (∼ 1 km) colder (lower) than that in the corresponding southern region.
The mesopause is the point of minimum temperature at the boundary between the mesosphere and the thermosphere atmospheric regions. Due to the lack of solar heating and very strong radiative cooling from carbon dioxide, the mesosphere is the coldest region on Earth with temperatures as low as -100 °C (-148 °F or 173 K). [1]
The mesopause, at about 75,000 m (250,000 ft), marks the transition to the thermosphere, in which temperature again rises with altitude, ranging from near 500 K (approximately 227 °C, or 440 °F) to 2000 K (1725 °C, or 3137 °F). You might find these chapters and articles relevant to this topic.
In this study, we categorize the lidar‐observed mesopause into two categories: the“high mesopause (HM) above 97 km during nonsummer months, mainly formed through ” the radiative cooling, and the“low mesopause (LM) below 92 km during nonwinter months, ” generated mostly by the adiabatic cooling.
17 Μαΐ 2019 · In this study, we categorize the lidar-observed mesopause into two categories: the “high mesopause” (HM) above 97 km during nonsummer months, mainly formed through the radiative cooling, and the “low mesopause” (LM) below 92 km during nonwinter months, generated mostly by the adiabatic cooling.
2 Μαΐ 2007 · In this paper we analyze the global altitude and temperature of the mesopause and their latitudinal, seasonal and diurnal variations as measured by SABER. Simulations with the thermosphere-ionosphere-mesosphere electrodynamics–global climate model (TIME-GCM) help in the interpretation of the results and the implications for mesospheric dynamics. 2.
The mesopause is the boundary layer between the mesosphere and the thermosphere, occurring at altitudes of about 85 to 100 kilometers (53 to 62 miles) above the Earth's surface. This layer is significant as it marks the point where temperatures begin to rise again after decreasing in the mesosphere, creating distinct thermal characteristics ...
