![]() ![]() (3) The end product grid cells are assigned the age of the oldest ice parcel within that cell, and the frequency distribution of the ice age is not taken into account. This leads to undersampling in areas of consistent ice divergence. (2) The individual ice parcels are not advected uniformly over (long) time. (1) Using sea ice extent instead of sea ice concentration leads to overestimation of the amount of older ice. sea ice extent, according to the NASA Team algorithm. These moraines have been dated at 15%, i.e. Several of these older moraines can be traced and are continuous with moraines in the Challpa Cocha valley. In the Qori Kalis valley, extensive sets of moraines exist beginning with the 1963 AD ice margin (Thompson et al., 2006) and getting progressively older down valley. Here we present a reconstruction of glacial fluctuations of Quelccaya Ice Cap (QIC), Peruvian Andes, from pre-LIA up to the present day. Despite this significance, relatively few records exist for the southern tropics. In particular, records of change in and around the tropical latitudes require attention because these areas are sensitive to climatic change and record the dynamic interplay between hemispheres (Oerlemans, 2005). ![]() Proxy records indicate Southern Hemisphere climatic changes during the Little Ice Age (LIA ~1300-1850 AD). ![]() ![]() Correlating Ice Cores from Quelccaya Ice Cap with Chronology from Little Ice Age Glacial Extents ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |