Peterson, Thomas C. and Willett, K.M. and Thorne, Peter (2011) Observed changes in surface atmospheric energy over land. Geophysical Research Letters, 38 (16). ISSN 0094-8276

Preview

Download (1MB) | Preview

Abstract

The temperature of the surface atmosphere over land has been rising during recent decades. But surface temperature, or, more accurately, enthalpy which can be calculated from temperature, is only one component of the energy content of the surface atmosphere. The other parts include kinetic energy and latent heat. It has been advocated in certain quarters that ignoring additional terms somehow calls into question global surface temperature analyses. Examination of all three of these components of atmospheric energetics reveals a significant increase in global surface atmospheric energy since the 1970s. Kinetic energy has decreased but by over two orders of magnitude less than the increases in both enthalpy and latent heat which provide approximately equal contributions to the global increases in heat content. Regionally, the enthalpy or the latent heat component can dominate the change in heat content. Although generally changes in latent heat and enthalpy act in concert, in some regions they can have the opposite signs.

Item Type:	Article
Keywords:	Observed changes; surface; atmospheric energy; land;
Academic Unit:	Faculty of Social Sciences > Geography Faculty of Social Sciences > Research Institutes > Irish Climate Analysis and Research Units, ICARUS
Item ID:	6531
Identification Number:	https://doi.org/10.1029/2011GL048442
Depositing User:	Peter Thorne
Date Deposited:	04 Nov 2015 16:45
Journal or Publication Title:	Geophysical Research Letters
Publisher:	American Geophysical Union
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

Repository Staff Only(login required)

Item control page

Downloads

Origin of downloads