The Maintenance of the Last Great Ice Sheets: A UGAMP GCM Study

摘要: Abstract A 5-yr simulation of the last glacial maximum using UGAMP GCM is presented. It has a full seasonal cycle, T42 resolution, and interactive land surface sea ice. Boundary conditions SST, ice extent elevation are taken from CLIMAP dataset orbital parameters carbon dioxide concentration adjusted. compared with 10-yr present-day climate same model. The results analyzed in terms processes leading to maintenance atmospheric circulation temperature structure, midlatitude transient behavior, precipitation, eventually accumulation over glaciers. model responds similar manner previous studies global mean statistics but differs its treatment regional climates. Changes orography equally important determining positions upper-level jets. Atlantic jet storm track particular much stronger than simulation, as...