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Surface and tropospheric temperature trends in Armenia
Author(s) -
Gevorgyan Artur
Publication year - 2014
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.3928
Subject(s) - troposphere , climatology , environmental science , atmospheric sciences , surface air temperature , climate change , geology , oceanography
The surface and tropospheric temperature trends have been evaluated over Armenia. A very clear signal of warming is detected at most stations of Armenia for spring, summer and autumn seasons for the period 1979–2012 compared to 1961–1994. Overall, the observed data and the reanalyses products ( ERA ‐40 and ERA ‐Interim) provide a generally consistent picture for tropospheric temperature trends over Armenia. The trends obtained from the three sources of data show significantly faster warming at the near‐surface troposphere (at 850 hPa ) for the period 1979–2012 compared to 1961–1994. However, temperature trends at 850 hPa are underestimated by the reanalysis products relative to the observed data. The warming rates decrease with height, and negative and nearly zero trends are observed in the middle and upper troposphere in most cases.