Abstract:

Under the Arctic rapid changes, the increases of temperature and humidity in the Arctic troposphere indicate a possible basic state change of the Arctic troposphere. As a measure of basic atmospheric state, whether and how atmospheric energy changes in the Arctic troposphere is an important scientific issue to Arctic researchers. Based on a brief review of the studies on surface-air energy exchange, lateral boundary energy exchange and atmospheric energy change in the Arctic troposphere, the physical images and basic data of atmospheric energy change and trend in the Arctic troposphere are given. The above studies show that: (1) The increases of surface energy transfer and summer lateral boundary energy transport to the Arctic troposphere provide a further clue to possible increase of the Arctic tropospheric energy; (2) Most recent study based on reanalysis data clarifies the fact that in past decades, the atmospheric energy in the Arctic troposphere was increasing, and therefore the basic state of atmosphere was changing significantly.

Key words: atmospheric energy,  surface-air exchange,  energy transport,  troposphere,  Arctic