| 摘要 |
<p>This method for determining a gas appearance or disappearance flow in a geographical space, from a priori flows, physical observations of the gas concentration values and the use of a numerical model expressing the gas behaviour and in particular its movements, and which comprises iterations of calculations and a convergence of successive determinations of flows towards a solution by minimizing a cost function, is characterized in that the model is implemented on succeeding time segments (5), however provided with overlay portions (6) enabling the correction of an inaccurate origin of the calculations of each one of the segments (5). Since the calculations concern increments of parameters and in particular concentration values, the segment results are collated with no difficulty. Application to the localization of gas sources, such as carbon dioxide.</p> |
