1. A method for determining whether a data point of an image indicates a presence of a cloud using data including visible, near-infrared, and short wavelength infrared data, the method comprising: performing a first comparison of a cirrus-band reflectance of the data point with a cirrus-band reflectance threshold and classifying the data point as a cloud point if the cirrus-band reflectance of the data point exceeds the cirrus-band reflectance threshold; and when the first comparison does not classify the data point as a cloud point, performing a further analysis of the data point including: performing a second comparison of an additional cloud indicator with an additional cloud indicator threshold, the additional cloud indicator being derived from at least one of the visible, near-infrared, and short wavelength infrared data; and classifying the data point as one of a cloud point or a non-cloud-point when the second comparison of the additional cloud indicator with the additional cloud indicator threshold allows the data point to be classified as one of a cloud point or a non-cloud point.