Reclamation of Steppe and Related Desertification in Three Temperate Zones of North Hemisphere;

The convergent and divergent velocities of active plate boundaries in the north hemisphere are obtained with space geodetic data.

A Preliminary Analysis of Surface and Middle-Upper Level Temperature over the Northern Hemisphere and the Tibetan Plateau in Recent 50 Years;

An Investigation of Temporal and Spatial Variations of 1988～1998 Snow Cover over the Northern Hemisphere;

The Influence of Winter Abnormal Sea Ice over the Ocean to the East of Greenland on Northern Hemisphere Winter Storm-Tracks;

Diagnosed Seasonal Variation of Stratosphere-Troposphere Exchange in the Northern Hemisphere by 2000 Data;