|
|
|
|
|
| Liu, Chunlei; Allan, Richard P.; Mayer, Michael; Hyder, Patrick; Desbruyères, Damien; Cheng, Lijing; Xu, Jianjun; Xu, Feng; Zhang, Yu. |
| The study of energy flows in the Earth system is essential for understanding current climate change. To understand how energy is accumulating and being distributed within the climate system, an updated reconstruction of energy fluxes at the top of atmosphere, surface and within the atmosphere derived from observations is presented. New satellite and ocean data are combined with an improved methodology to quantify recent variability in meridional and ocean to land heat transports since 1985. A global top of atmosphere net imbalance is found to increase from 0.10 ± 0.61 W m−2 over 1985–1999 to 0.62 ± 0.1 W m−2 over 2000–2016, and the uncertainty of ± 0.61 W m−2 is related to the Argo ocean heat content changes (± 0.1 W m−2) and an additional uncertainty... |
| Tipo: Text |
Palavras-chave: TOA flux; Net surface flux; Energy transport. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76383/77393.pdf |
| |
|
|
| Colin De Verdiere, Alain; Huck, Thierry; Pogossian, Souren; Ollitrault, Michel. |
| The vertically integrated potential energy of an incompressible stratified fluid formulated in density coordinates can be simply written as a weighted vertical sum of the squares of the vertical displacements of density surfaces, a general expression valid for arbitrary displacements. The sum of this form of potential energy and kinetic energy is then a conserved quantity for the multilayer shallow water model. The formulation in density coordinates is a natural one to find the Lorenz reference state of available potential energy (APE).We describe the method to compute the APE of an ocean state and provide two applications. The first is the classical double-gyre, wind-driven circulation simulated by a shallow water model at high resolution.We show that the... |
| Tipo: Text |
Palavras-chave: Energy transport; Ocean circulation; Ocean dynamics; Isopycnal coordinates. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00464/57521/59707.pdf |
| |
|
|
|
