Figure 1. Index map of Ecuador's Andean region showing glacierized areas characterized by volcano type, topography, and precipitation
Table 1. The glacierized areas of Ecuador
Climatic Conditions of Ecuadorean Glacierization
Figure 2. Graphs showing average monthly precipitation and temperatures from two meteorological stations near Cotopaxi volcano
Figure 3. Photograph of Cayambe volcano
Figure 4. Oblique aerial photograph of the snow-covered ice caps on the Chimborazo and Carihuairazo mountains
Ice Balance on Active Volcanoes and the Problems in Determining Glacier Asymmetry
Figure 5. One oblique and two vertical aerial photographs of the active Sangay stratovolcano
Figure 6. Segment of a Landsat 2 MSS image of the active Cotopaxi stratovolcano
Figure 7. Photograph of the glaciers on the west slope of Cotopaxi
Figure 8. Vertical aerial photograph of Cotopaxi showing the crater area and most of the summit ice cap
Figure 9. Landsat 2 MSS image of the northern part of the Ecuadorean Andes
Figure 10. Landsat 3 MSS image of the southern part of the Ecuadorean Andes
Table 2. Maps of the glacierized mountains of Ecuador
Table 3. Aerial photographs of the glacierized mountains of Ecuador
Figure 11. Index map to the optimum Landsat 1, 2, and 3 images of the glaciers of Ecuador
Figure 12. Parts of Landsat MSS images of volcanoes in Ecuador that have glacier areas greater than 0.2 km2 (20 ha)
Table 4. Optimum Landsat 1, 2, and 3 images of the glaciers of Ecuador
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U.S. Geological Survey, U.S.Department of the Interior