Contour line factors in a weather system. An isobar (from or "baros", meaning 'weight') is a line of equal or constant pressure on a graph, plot, or map; an isopleth or contour line of pressure. More accurately, isobars are lines drawn on a map joining places of equal average atmospheric pressure reduced to sea level for a specified period of time. In meteorology, the barometric pressures shown are reduced to sea level, not the surface pressures at the map locations. The distribution of isobars is closely related to the magnitude and direction of the wind field, and can be used to predict
Fan chart (time series) this way, central banks that employ inflation targeting report to the general public not only the more likely forecasts of the inflation rate "but also its balance of risks"! The split normal density is completely characterized by three parameters, the mode, variance and skewness. Therefore, the fan chart ranges depend on these parameters only. and In a central bank that employs inflation targeting, the three moments of the inflation forecast distribution are determined as follows: Fan chart (time series) In time series analysis, a fan chart is a chart that joins a simple line chart for observed past data, by