![]() ![]() By doing this, the data is processed and displayed all in one step. You can create an aspect-slope map by using the Aspect-Slope function in ArcGIS Pro, which creates a raster layer that simultaneously displays the aspect and slope of a surface. Lighter hues (such as yellow) on northwest-facing slopes and darker hues (like purple) on southeasterly slopes give the impression of illumination on the terrain, which mimics the appearance of a three-dimensional landscape. The hues are brighter, or more saturated, on steeper slopes and duller on flatter slopes. In these maps, color hues such as red, green, and blue represent different directions. But first, here is a little background information about aspect-slope maps. In this tip, you will learn how to create an aspect-slope map quickly and easily in ArcGIS Pro. Because of its finer spatial resolution (375 meters), it can detect smaller fires on the ground with a bit more accuracy.ĭetecting forest fires is just one of the hundreds of remote sensing and satellite applications in use today.This is an aspect-slope map of the Crater Lake area in Oregon. VIIRS: Likewise, VIIRS on board the NASA/NOAA Suomi NPP detects active forest fires based on thermal anomalies.As explained above, it detects active fires by comparing temperature to neighboring pixels but it depends on the severity and extent of the fire. ![]()
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