兰州大学学报（自然科学版）
蘭州大學學報（自然科學版）
란주대학학보（자연과학판）
JOURNAL OF LANZHOU UNIVERSITY（NATURAL SCIENCES）
2013年
3期
332-336
,共5页
地表温度%气候环境%戈壁过渡带%祁连山西缘
地錶溫度%氣候環境%戈壁過渡帶%祁連山西緣
지표온도%기후배경%과벽과도대%기련산서연
surface temperature%climate and environment%desert transition%Qilian west edge
采用肃北气象站1973?2010年地表温度和相关的气候要素实测资料,利用小波分析法等统计方法,分析戈壁过渡带地表温度对气候变化的响应特征.结果表明：近年来戈壁过渡带地表温度呈显著上升趋势,其中冬季上升0.85?C/10 a,最为突出,春?秋季基本为0.19～0.45?C/10 a；年平均地温在1986年前后发生了由冷向暖的突变.利用观测站平均气温、年日照时数、年平均蒸发量资料以及春季平均风速与地表温度建立关系模型,表明拟合所得的地表温度与观测值之间的误差分别在0～1.2,0～1.3,0～1.5,0～2.2的小范围内波动.这说明地表温度对平均气温、年日照时数、年平均蒸发量资料以及春季平均风速都存在响应,其中风速对地表温度的变化具有突出的响应特征,即地表温度与风速之间表现为风速增大地表温度上升,或风速减小地表温度降低的特征.
採用肅北氣象站1973?2010年地錶溫度和相關的氣候要素實測資料,利用小波分析法等統計方法,分析戈壁過渡帶地錶溫度對氣候變化的響應特徵.結果錶明：近年來戈壁過渡帶地錶溫度呈顯著上升趨勢,其中鼕季上升0.85?C/10 a,最為突齣,春?鞦季基本為0.19～0.45?C/10 a；年平均地溫在1986年前後髮生瞭由冷嚮暖的突變.利用觀測站平均氣溫、年日照時數、年平均蒸髮量資料以及春季平均風速與地錶溫度建立關繫模型,錶明擬閤所得的地錶溫度與觀測值之間的誤差分彆在0～1.2,0～1.3,0～1.5,0～2.2的小範圍內波動.這說明地錶溫度對平均氣溫、年日照時數、年平均蒸髮量資料以及春季平均風速都存在響應,其中風速對地錶溫度的變化具有突齣的響應特徵,即地錶溫度與風速之間錶現為風速增大地錶溫度上升,或風速減小地錶溫度降低的特徵.
채용숙북기상참1973?2010년지표온도화상관적기후요소실측자료,이용소파분석법등통계방법,분석과벽과도대지표온도대기후변화적향응특정.결과표명：근년래과벽과도대지표온도정현저상승추세,기중동계상승0.85?C/10 a,최위돌출,춘?추계기본위0.19～0.45?C/10 a；년평균지온재1986년전후발생료유랭향난적돌변.이용관측참평균기온、년일조시수、년평균증발량자료이급춘계평균풍속여지표온도건립관계모형,표명의합소득적지표온도여관측치지간적오차분별재0～1.2,0～1.3,0～1.5,0～2.2적소범위내파동.저설명지표온도대평균기온、년일조시수、년평균증발량자료이급춘계평균풍속도존재향응,기중풍속대지표온도적변화구유돌출적향응특정,즉지표온도여풍속지간표현위풍속증대지표온도상승,혹풍속감소지표온도강저적특정.
Wavelet analysis and other statistical methods were used to analyze the surface temperature and climate related data from the Subei meteorological station from 1973 to 2010 and the results show that in recent years the surface temperature of the desert transition zone had a significant upward trend, especially in the winter, rising by 0.85?C/10 a and presenting a the most prominent increase. From spring to winter changes were in the range of 0.19～0.45?C/10 a. The average surface temperature changed suddenly from cold to warm in about 1986. Observed average temperatures, annual sunshine hours, average annual evaporation data as well as the spring average wind speed and surface temperature relationship model show that the error between the surface temperature and the measured values fluctuated between 0～1.2, 0～1.3, 0～1.5, 0～2.2, indicating that the average surface temperature and sunshine hours, the average annual evaporation, the spring mean wind speed and temperature were all related to each other, i.e. changes of wind speed had a great influence on the change of surface temperature and there was a relationship between the surface temperature and wind speed: when the wind speed increased the surface temperature rose too, or when the wind speed was reduced the surface temperature also dropped.
