What may we conclude about global tropospheric temperature trends?

被引:32
作者
Christy, JR [1 ]
Norris, WB [1 ]
机构
[1] Univ Alabama, ESSC NSSTC, Huntsville, AL 35899 USA
关键词
Lower troposphere temperature (LT) - Temperature trends;
D O I
10.1029/2003GL019361
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Three realizations of the atmospheric temperature representing the layer from the surface to about 18 km generated from microwave emissions were published in 2003. Their 1979 - 2002 linear trends were stated as + 0.24 +/- 0.02, + 0.12 +/- 0.02 and + 0.03 +/- 0.05 degreesC decade(-1). Because the upper portion of this layer includes the stratosphere, the opportunity to utilize radiosonde measurements as an independent assessor of these trend values is diminished. However, the University of Alabama in Huntsville (UAH) also produces a lower tropospheric temperature ( LT) product (0 - 8 km, trend of + 0.08 degreesC decade(-1)) for which radiosondes are much more suitable. Comparisons of this UAH product with radiosonde-simulated layer temperatures show no significant difference in LT trends, lending support for the least positive trend of the three deeper layer values (+ 0.03 +/- 0.05 degreesC decade(-1)) as it was constructed in the same manner as LT.
引用
收藏
页码:1 / 4
页数:4
相关论文
共 19 条
[11]  
2
[12]  
Mears CA, 2003, J CLIMATE, V16, P3650, DOI 10.1175/1520-0442(2003)016<3650:AROTMC>2.0.CO
[13]  
2
[14]   Recalibration of the NOAA microwave sounding unit [J].
Mo, T ;
Goldberg, MD ;
Crosby, DS ;
Cheng, ZH .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2001, 106 (D10) :10145-10150
[15]   A new global gridded radiosonde temperature data base and recent temperature trends [J].
Parker, DE ;
Gordon, M ;
Cullum, DPN ;
Sexton, DMH ;
Folland, CK ;
Rayner, N .
GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (12) :1499-1502
[16]  
SEIDEL DJ, 2004, IN PRESS J CLIM, V17
[17]  
SPENCER RW, 1992, J CLIMATE, V5, P858, DOI 10.1175/1520-0442(1992)005<0858:PARVOS>2.0.CO
[18]  
2
[19]   Global warming trend of mean tropospheric temperature observed by satellites [J].
Vinnikov, KY ;
Grody, NC .
SCIENCE, 2003, 302 (5643) :269-272