Climate variability as reflected in a regional atmospheric CO2 record

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper analyses a 15-year long atmospheric CO2 mixing ratio record measured at a mid-continental, low-elevation station (Hegyhátsál, Hungary) to reveal the effect of regional climate variability. While the long-term trend and the temporal fluctuation of the growth rate of CO2 mixing ratio follow the global tendencies to a large extent, the shorter-term variations show special features. We present the distorted seasonal cycle caused by the seasonality in the atmospheric vertical mixing and the tendentious change in its shape, which can be attributed to the gradual warming and to the resulted prolongation of the growing season. The decreasing summer diurnal amplitude and the decreasing seasonal amplitude in the mixing ratio, furthermore the higher than average summer CO2 mixing ratio growth rate in the first period of the measurements (1994-2003) with generally rising temperature and decreasing precipitation are explained as the consequence of the reduced activity of the biosphere in the influence area of the station and that of the reduced biomass under environmental conditions getting increasingly unfavourable. The explanation is supported by the co-located tall tower surface-atmosphere CO2 exchange measurements and by the crop yield statistics of the dominantly agricultural region around the station.

Original languageEnglish
Pages (from-to)417-426
Number of pages10
JournalTellus, Series B: Chemical and Physical Meteorology
Volume62
Issue number5
DOIs
Publication statusPublished - Nov 2010

Fingerprint

mixing ratio
climate
summer
vertical mixing
crop yield
regional climate
biosphere
seasonality
growing season
warming
environmental conditions
atmosphere
biomass
station
temperature

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Climate variability as reflected in a regional atmospheric CO2 record. / Haszpra, L.; Barcza, Z.

In: Tellus, Series B: Chemical and Physical Meteorology, Vol. 62, No. 5, 11.2010, p. 417-426.

Research output: Contribution to journalArticle

@article{7b083a8f2aa947c294f3fb839f6719fa,
title = "Climate variability as reflected in a regional atmospheric CO2 record",
abstract = "This paper analyses a 15-year long atmospheric CO2 mixing ratio record measured at a mid-continental, low-elevation station (Hegyh{\'a}ts{\'a}l, Hungary) to reveal the effect of regional climate variability. While the long-term trend and the temporal fluctuation of the growth rate of CO2 mixing ratio follow the global tendencies to a large extent, the shorter-term variations show special features. We present the distorted seasonal cycle caused by the seasonality in the atmospheric vertical mixing and the tendentious change in its shape, which can be attributed to the gradual warming and to the resulted prolongation of the growing season. The decreasing summer diurnal amplitude and the decreasing seasonal amplitude in the mixing ratio, furthermore the higher than average summer CO2 mixing ratio growth rate in the first period of the measurements (1994-2003) with generally rising temperature and decreasing precipitation are explained as the consequence of the reduced activity of the biosphere in the influence area of the station and that of the reduced biomass under environmental conditions getting increasingly unfavourable. The explanation is supported by the co-located tall tower surface-atmosphere CO2 exchange measurements and by the crop yield statistics of the dominantly agricultural region around the station.",
author = "L. Haszpra and Z. Barcza",
year = "2010",
month = "11",
doi = "10.1111/j.1600-0889.2010.00505.x",
language = "English",
volume = "62",
pages = "417--426",
journal = "Tellus, Series B: Chemical and Physical Meteorology",
issn = "0280-6509",
publisher = "Co-Action Publishing",
number = "5",

}

TY - JOUR

T1 - Climate variability as reflected in a regional atmospheric CO2 record

AU - Haszpra, L.

AU - Barcza, Z.

PY - 2010/11

Y1 - 2010/11

N2 - This paper analyses a 15-year long atmospheric CO2 mixing ratio record measured at a mid-continental, low-elevation station (Hegyhátsál, Hungary) to reveal the effect of regional climate variability. While the long-term trend and the temporal fluctuation of the growth rate of CO2 mixing ratio follow the global tendencies to a large extent, the shorter-term variations show special features. We present the distorted seasonal cycle caused by the seasonality in the atmospheric vertical mixing and the tendentious change in its shape, which can be attributed to the gradual warming and to the resulted prolongation of the growing season. The decreasing summer diurnal amplitude and the decreasing seasonal amplitude in the mixing ratio, furthermore the higher than average summer CO2 mixing ratio growth rate in the first period of the measurements (1994-2003) with generally rising temperature and decreasing precipitation are explained as the consequence of the reduced activity of the biosphere in the influence area of the station and that of the reduced biomass under environmental conditions getting increasingly unfavourable. The explanation is supported by the co-located tall tower surface-atmosphere CO2 exchange measurements and by the crop yield statistics of the dominantly agricultural region around the station.

AB - This paper analyses a 15-year long atmospheric CO2 mixing ratio record measured at a mid-continental, low-elevation station (Hegyhátsál, Hungary) to reveal the effect of regional climate variability. While the long-term trend and the temporal fluctuation of the growth rate of CO2 mixing ratio follow the global tendencies to a large extent, the shorter-term variations show special features. We present the distorted seasonal cycle caused by the seasonality in the atmospheric vertical mixing and the tendentious change in its shape, which can be attributed to the gradual warming and to the resulted prolongation of the growing season. The decreasing summer diurnal amplitude and the decreasing seasonal amplitude in the mixing ratio, furthermore the higher than average summer CO2 mixing ratio growth rate in the first period of the measurements (1994-2003) with generally rising temperature and decreasing precipitation are explained as the consequence of the reduced activity of the biosphere in the influence area of the station and that of the reduced biomass under environmental conditions getting increasingly unfavourable. The explanation is supported by the co-located tall tower surface-atmosphere CO2 exchange measurements and by the crop yield statistics of the dominantly agricultural region around the station.

UR - http://www.scopus.com/inward/record.url?scp=77958544319&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77958544319&partnerID=8YFLogxK

U2 - 10.1111/j.1600-0889.2010.00505.x

DO - 10.1111/j.1600-0889.2010.00505.x

M3 - Article

AN - SCOPUS:77958544319

VL - 62

SP - 417

EP - 426

JO - Tellus, Series B: Chemical and Physical Meteorology

JF - Tellus, Series B: Chemical and Physical Meteorology

SN - 0280-6509

IS - 5

ER -