− | [[File:Global Climate Model.png|thumb|right|350px|Climate models are systems of [[differential equation]]s based on the basic laws of [[physics]], [[Fluid dynamics|fluid motion]], and [[chemistry]]. To “run” a model, scientists divide the planet into a 3-dimensional grid, apply the basic equations, and evaluate the results. Atmospheric models calculate [[winds]], [[heat transfer]], [[radiation]], [[relative humidity]], and surface [[hydrology]] within each grid and evaluate interactions with neighboring points.]] | + | [[File:Global Climate Model.png|thumb|right|350px|Climate models are systems of [[differential equation]]s based on the basic laws of [[physics]], [[Fluid dynamics|fluid motion]], and [[chemistry]]. To “run” a model, scientists divide the planet into a 3-dimensional grid, apply the basic equations, and evaluate the results. Atmospheric models calculate [[winds]], [[heat transfer]], [[radiation]], [[relative humidity]], and surface [[hydrology]] within each grid and evaluate interactions with neighboring points. |
− | [[File:Simple box model.png|thumb|upright=1|right| Schematic of a simple box model used to illustrate [[flux]]es in geochemical cycles, showing a source ''(Q)'', sink ''(S)'' and reservoir ''(M)'']] | + | [[File:Simple box model.png|thumb|upright=1|right| Schematic of a simple box model used to illustrate [[flux]]es in geochemical cycles, showing a source ''(Q)'', sink ''(S)'' and reservoir ''(M)''|链接=Special:FilePath/Simple_box_model.png]] |
| 盒子模型是复杂系统的简化版本,将它们简化为通量连接的盒子(或水库)。假定这些盒子是均匀混合的。因此,在一个给定的盒子内,任何化学物质的浓度都是均匀的。然而,在一个给定的盒子内的一个物种的丰度可能会随着时间的变化而变化,这是由于盒子内的输入(或损失)或这个物种在盒子内的生产、消费或衰变所致。 | | 盒子模型是复杂系统的简化版本,将它们简化为通量连接的盒子(或水库)。假定这些盒子是均匀混合的。因此,在一个给定的盒子内,任何化学物质的浓度都是均匀的。然而,在一个给定的盒子内的一个物种的丰度可能会随着时间的变化而变化,这是由于盒子内的输入(或损失)或这个物种在盒子内的生产、消费或衰变所致。 |