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Mapping Glacial Landforms On The Chiripó Massif, Costa Rica, Based On Google Earth, A Digital Elevation Model, And Field Observations, Yingkui Li, Taylor Tieche, Sally P. Horn, Yanan Li, Renrong Chen, Kenneth H. Orvis

Geography Publications and Other Works

The Chirripó massif in the Cordillera de Talamanca, Costa Rica, is one of a few sites in Central America that preserve evidence of past glaciation. We mapped glacial landforms in this area using Google Earth high-resolution imagery and a 30 m Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM). Prior field observations, field notes, photographs, and landform maps were used to check and refine the delineated landform boundaries. The composited map includes lateral and terminal moraines, tills, glacial valleys, glacial lakes, nunataks, arêtes, and horns. Glacial extents during three proposed stages were mapped in the Valle de las Morrenas, …