Entropy 2013, 15(9), 3449-3457; doi:10.3390/e15093449
Implication of Negative Entropy Flow for Local Rainfall
1
State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China
2
Sanshui Meteorological Bureau, Foshan 528300, Guangdong, China
*
Author to whom correspondence should be addressed.
Received: 24 May 2013 / Revised: 15 August 2013 / Accepted: 19 August 2013 / Published: 30 August 2013
Abstract
The relation between the atmospheric entropy flow field and local rainfall is examined in terms of the theory of dissipative structures. In this paper, the entropy balance equation in a form suitable for describing the entropy budget of the Earth’s atmosphere is derived starting from the Gibbs relation, and, as examples, the entropy flows of the two severe weather events associated with the development of an extratropical cyclone and a tropical storm are calculated, respectively. The results show that negative entropy flow (NEF) has a significant effect on the precipitation intensity and scope with an apparent matching of the NEF’s pattern with the rainfall distribution revealed and, that the diagnosis of NEF is able to provide a good indicator for precipitation forecasting.Keywords:
entropy flow; rainfall; forecast
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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MDPI and ACS Style
Liu, Y.; Liu, C.; Li, Z. Implication of Negative Entropy Flow for Local Rainfall. Entropy 2013, 15, 3449-3457.