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The Ocean and Atmosphere in the Maritime Continent and Their Impacts
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Spatial and temporal distribution of global atmospheric energy and its variation trend analysis
P-P5-10-S
Kaiqi Chen* , State Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
Jianping Li, State Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
Presenter Email: kyle1023@163.com |
| Based on the data of NECP reanalysis from 1948 to 2016, this paper makes a statistical analysis of the global atmospheric energy distribution and changes, reveals the fact that climate change affects the spatial and temporal distribution of atmospheric energy, and makes a preliminary discussion on the cause of the spatial and temporal characteristics of energy.It was found that the total energy of the atmosphere was gradually decreasing from the equator to the poles.The distribution and variation of internal energy and potential energy are similar to that of total energy, while latent heat and kinetic energy are different.The total energy shows a significant growth characteristic of jump on the interannual scale. Volcanic eruption will make the total energy of the atmosphere develop towards a negative trend, and the significant areas of energy change are different.At the same time, it is pointed out that the atmospheric energy in the northern and southern hemispheres is converging, and the energy gap between the ocean and the land is widening.In addition, changes in atmospheric energy are likely to be the result of a combination of external compulsion and internal variability, among which the annular mode (NAM/SAM) in the northern and southern hemispheres has a greater influence on energy distribution, and the large-scale mutation of climate modalities in the late 1970s May also be closely related to changes in atmospheric energy. |
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