Valles Caldera is the remains of a collapsed magma chamber which spans some 22 kilometres (14 miles) in New Mexico, and is featured below in the image taken by the Enhanced Thematic Mapper Plus on Landsat 7 satellite on May 22, 2002.
Tag: Southwestern United States
Tree Rings Sure Up El Nino Data
An international team of climate scientists from the University of Hawaiβi at MΔnoa have found that tree ring data, specifically from the US Southwest, agree well with the 150-year instrumental sea surface temperature records in the tropical Pacific that we already have of El NiΓ±o events.