Research Article
An Integrated Framework for Mapping Nationwide Daily Temperature in China
Figure 3
Three-dimensional scatterplots of Ta-mean. Longitude is the X axis, latitude is the Y axis, and Ta-mean is the Z axis. The observations of Ta-mean of (a) VE, (b) SS, (c) AE, and (d) WS were projected onto the XZ (green dots) and YZ (blue dots) planes to analyze the trends of them. According to the 3D scatterplots and projections, a polynomial with order of 2 was used to fit the trend surfaces of the observations.
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