English Dictionary

air parcel

名詞

(physics, meteorology) An imaginary body of air to which may be assigned any or all of the basic dynamic and thermodynamic properties of atmospheric air. A parcel is large enough to contain a very great number of molecules, but small enough so that the properties assigned to it are approximately uniform within it and so that its motions with respect to the surrounding atmosphere do not induce marked compensatory movements. It cannot be given precise numerical definition, but a cubic foot of air might fit well into most contexts where air parcels are discussed, particularly those related to static stability.

日本語の意味

物理学や気象学において使用される概念で、空気の基本的な動的および熱力学的性質がほぼ均一であると仮定される、仮想的な空気の塊を指す。これは、非常に多くの分子を含む一方で小さすぎず、内部の性質が均一であり、かつ周囲の大気との相対的な運動に大きな補償的変化を引き起こさない程度のサイズで考えられるものです。

To assess atmospheric stability, the researcher tracked an air parcel as it rose and cooled adiabatically.

大気の安定性を評価するため、研究者は上昇して断熱的に冷却される気塊を追跡した。

意味（1）

(physics, meteorology) An imaginary body of air to which may be assigned any or all of the basic dynamic and thermodynamic properties of atmospheric air. A parcel is large enough to contain a very great number of molecules, but small enough so that the properties assigned to it are approximately uniform within it and so that its motions with respect to the surrounding atmosphere do not induce marked compensatory movements. It cannot be given precise numerical definition, but a cubic foot of air might fit well into most contexts where air parcels are discussed, particularly those related to static stability.

air parcels （ plural ）