Temporal Changes of Near‐Surface Air Temperature in Poland for 1781–2016 and in Tbilisi (Georgia) for 1881–2016

Autor: Renata Modzelewska, N. I. Kapanadze, Michael Alania, E. I. Khelaia
Jazyk: angličtina
Rok vydání: 2020
Předmět:
010504 meteorology & atmospheric sciences
global warming effect
lcsh:Astronomy
FOS: Physical sciences
Environmental Science (miscellaneous)
010502 geochemistry & geophysics
Atmospheric sciences
Solar irradiance
01 natural sciences
Physics - Geophysics
lcsh:QB1-991
Surface air temperature
near‐surface air temperature changes
0105 earth and related environmental sciences
Earth and Planetary Astrophysics (astro-ph.EP)
Sunspot
Global warming
lcsh:QE1-996.5
Geophysics (physics.geo-ph)
lcsh:Geology
Physics - Atmospheric and Oceanic Physics
North Atlantic oscillation
Air temperature
Atmospheric and Oceanic Physics (physics.ao-ph)
General Earth and Planetary Sciences
Environmental science
Winter season
centenary changes of Earth temperatures
solar activity
Astrophysics - Earth and Planetary Astrophysics
Zdroj: Earth and Space Science, Vol 7, Iss 10, Pp n/a-n/a (2020)
ISSN: 2333-5084
Popis: Analyses of near-surface air temperature T in Poland for 1781-2016 and in Tbilisi (Georgia) for 1881-2016 have been carried out. We show that the centenary warming effect in Poland and in Tbilisi has almost the same peculiarities. An average centenary warming effect deltaT = (1.08+/-0.29) C is observed in Poland and in Tbilisi for 1881-2016. A warming effect is larger in winter season (deltaT = ~1.15 C) than in other seasons (average warming effect for these seasons deltaT = ~0.95 C). We show that a centenary warming is mainly related to the change of solar activity (estimated by sunspot numbers (SSN) and total solar irradiance (TSI)); particularly, a time interval about ~70 years (1890-1960), when a correlation coefficients between 11 years smoothed SSN and T, and TSI and T are high, r = 0.66+/-0.07 and r = 0.73+/-0.07 for Poland and r = 0.82+/-0.05 and r = 0.90+/-0.05 for Tbilisi, respectively; in this period solar activity contributes decisively in the global warming. We show that a global warming effect equals zero based on the temperature T data in Poland for period 1781-1880, when human activities were relatively less than in 1881-2016. We recognize a few feeble ~20+/-3 years disturbances in the temperature changes for period 1885-1980, most likely related with the fluctuations of solar magnetic cycles. We distinguish the fluctuations of ~7-8 years in Poland's T data, possibly connected with local effects of the North Atlantic Oscillation.
12 pages, 6 figures
Databáze: OpenAIRE
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