ABSTRACT
ABSTRACT: Spatial and temporal characteristics of temperature have been investigated in the Daqing River Basin using daily temperature observations from 10 meteorological stations. The three indices used to assess pattern changes were average temperature, maximum temperature and minimum temperature. The yearly, quarterly, and monthly changes of these three temperature aspects were studied using a Geographic Information System (ArcGIS), mathematical statistics, and Mann-Kendall inspection. Temporal analysis showed similar trends for rising annual temperature in the Daqing River Basin. Seasonally, winter temperatures showed the most rapid warming trends and summer temperatures were the slowest. The trend ratio of minimum temperatures was the most significant in every season. By month, it showed a steady and significant increase in low temperature extremes, while the occurrence of high temperature extremes was reduced.
