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- Title
TROPICAL TEMPERATURE ALTITUDE AMPLIFICATION IN THE HIATUS PERIOD (1998-2012).
- Authors
DUCIĆĆ, Vladan D.; MILOVANOVIĆ, Bosko M.; STANOJEVIĆ, Gorica B.; MILENKOVIĆ, Milan Dj.; ĆURČIĆ, Nina B.
- Abstract
There was a stagnation in temperature rise in the period 1998-2012, despite increase in greenhouse gases radiation forcing (hiatus period). According to Global Circulation Models simulations, expected response on the rise of greenhouse gases forcing is tropical temperature altitude amplification - temperature increases faster in higher troposphere than in lower troposphere. In this paper, two satellite data sets -- University of Alabama in Huntsville, Microvawe Sounding Units (UAH MSU) and Remote Sensing Systems (RSS), were used to test altitude temperature amplification in tropics in the hiatus period. We compared satellite data sets both for the temperature of the lower troposphere and the temperature of the middle troposphere, in general and particularly for land and ocean for UAH MSU). The results from both satellite measurements showed the presence of hiatus, i. e. slowdown of the temperature rise in the period 1998-2012 compared to period 1979-2012 (UAH MSU) and temperature fall for RSS. Smaller increase, i. e. temperature fall over ocean showed that hiatus is an ocean phenomenon above all. Data from UAH MSU showed that temperature altitude amplification in tropics was not present eitherfor period 1979-2012, or 1998-2012. RSS data set also does not show temperature altitude amplification for these periods. RSS data for successive 15-yearperiods from 1979-1993 till 1998-2012 does not show tropical temperature altitude amplification and in one case negative trend is registered in lower troposphere and in two cases in middle troposphere. In general, our results do not show presence oftemperature altitude amplification in tropics in the hiatus period.
- Subjects
GREENHOUSE gas mitigation; SOLAR radiation; TROPOSPHERE; THERMAL properties; ISOTHERMAL processes
- Publication
Thermal Science, 2015, Vol 19, pS371
- ISSN
0354-9836
- Publication type
Article
- DOI
10.2298/TSCI150410103D