Temperature and precipitation in Mongolia based on dendroclimatic investigations  

作　　者：G.Jacoby N.Pederson R.D'A rrigo 

机构地区：[1]Lamont-Doherty Earth Observatory, Palisades, NY 10964, USA,Lamont-Doherty Earth Observatory, Palisades, NY 10964, USA,Lamont-Doherty Earth Observatory, Palisades, NY 10964, USA

出　　处：《Chinese Science Bulletin》2003年第14期1474-1479,共6页

摘　　要：Recent tree-ring studies in Mongolia provide evidence of unusual warming that is in agreement with large-scale reconstructed and recorded temperatures for the Northern Hemisphere and the Arctic. One Mongolian proxy record for temperature extends back over 1000 years and several others are over 350 years in length. Precipitation reconstructions based on tree rings reflect recent increases but also indicate that the increases are within the long-term range of variations. Spectral analyses of recorded precipitation data and the reconstructions support the hypotheses of quasi-solar periodicity in precipitation variation, previously suggested by others.Recent tree-ring studies in Mongolia provide evidence of unusual warming that is in agreement with large-scale reconstructed and recorded temperatures for the Northern Hemisphere and the Arctic. One Mongolian proxy record for temperature extends back over 1000 years and several others are over 350 years in length. Precipitation reconstructions based on tree rings reflect recent increases but also indicate that the increases are within the long-term range of variations. Spectral analyses of recorded precipitation data and the reconstructions support the hypotheses of quasi-solar periodicity in precipitation variation, previously suggested by others.

关 键 词：蒙古 年轮气候学 温度 降雨量 古气候 气候变化 

分 类 号：P532[天文地球—古生物学与地层学]