climatic signal in tree-ring width chronologies of european russia: spatial change and perspectives...
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![Page 1: Climatic signal in tree-ring width chronologies of European Russia: spatial change and perspectives for paleoclimatic reconstructions Vladimir Matskovsky](https://reader038.vdocument.in/reader038/viewer/2022110304/5518ba6a55034638098b4676/html5/thumbnails/1.jpg)
Climatic signal in tree-ring width chronologies of European Russia: spatial change
and perspectives for paleoclimatic reconstructions
Vladimir Matskovsky
Institute of Geography, Russian Academy of Sciences, Moscow, [email protected]
PAGES 2nd Young Scientists MeetingThe Past: A Compass for Future Earth
11-12 February 2013, Goa, India
Institute of Geography RAS Moscow, Russia
Tree-Ring Laboratory
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Motivation
2/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
• Tree rings are a unique source of paleoclimatic information because of precise dating of each proxy value
• European part of Russia is still poorly studied in terms of dendroclimatology, comparing to neighboring regions: Fennoscandia and Urals Mountains
• Long tree-ring width chronologies have mostly been used for dendrochronological dating and haven’t been analyzed for its paleoclimatic potential
• Global map of high-resolution reconstructions is lacking data from this region
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Motivation
3/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
“…chronological errors will accumulate back in time as missing rings are encountered.”
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Constructing long chronologies for European Russia
4/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
70°N 60°E
50°N 20°E
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Identifying climatic signal: objectives
5/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
The main objective:To extract climatic signal from tree-ring width chronologies of conifers in European Russia
Tasks:• To test correlations with different climatic parameters that can possibly
influence tree growth
• To compare long chronologies with climatic reconstructions
• To identify weather conditions in “pointer years” for the instrumental period
• To compare “pointer years” of long chronologies with historical data about extreme climatic events
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Identifying climatic signal: materials and methods
6/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Pine (Pinus sylvestris ) Spruce (Picea abies, obovata) Larch (Larix sibirica)
Chronologies of living trees
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Identifying climatic signal: materials and methods
7/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climate data
• Daily and monthly precipitation and temperature values from more then 200 meteostations
• Gridded meteodata, 0,5° latitude and longitude (CRU TS 3.0)• Model data: Soil moisture, Palmer Drought Severity Index (PDSI),
Reanalysis.• Atmospheric circulation indexes: NAO, SCAND, etc.
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Identifying climatic signal: materials and methods
8/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Methods
• Correlation analysis• Pointer years analysis• Comparison with historical data• Comparison with climate reconstructions
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Identifying climatic signal: results
9/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Pine Minimum air temperatures
(May-August)
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Identifying climatic signal: results
10/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Pine Soil moisture
(May)
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Identifying climatic signal: results
11/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Pine Palmer Drought Severity Index (PDSI)
(July)
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Identifying climatic signal: results
12/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Pine Wet day frequency
(June-July)
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Identifying climatic signal: results
13/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Spruce Mean air temperatures
(June-July)
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Identifying climatic signal: results
14/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Spruce Precipitation
(July)
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Identifying climatic signal: results
15/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Larch Minimum air temperatures
(June)
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Identifying climatic signal: results
16/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Climatic response of tree ring chronologies
Larch Relative air humidity
(August)
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Identifying climatic signal: results
17/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Weather conditions forming pointer years
X-IXX-IIIIV-IX
V-VIIIVI-VII
X-IXX-IIIIV-IX
V-VIIIVI-VII
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Paleoclimatic information in long chronologies
18/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
z-sc
ores
Years
Chronology «Vologda» Mann and Jones, 2003, R = 0.59D’Arrigo et al., 2006, R=0.35
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Paleoclimatic information in long chronologies
19/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
z-sc
ores
Years
«Solovki» chronology Kononov et al., 2009, R = 0.61
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-3
-2
-1
0
1
2
3
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
Но
рм
ир
ова
нн
ые
знач
ени
я
Годы
«Solovki» chronology Solar activity (Delaygue and Bard, 2010), R = 0.63
Paleoclimatic information in long chronologies
20/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
z-sc
ores
Years
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Paleoclimatic information in long chronologies
21/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Positive «pointer years» Negative «pointer years» All the «pointer years»
Century
Freq
uenc
y
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Summary
22/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Why? (objectives)To understand what climate information can be extracted from long tree-ring width chronologies in European RussiaHow? (materials and methods)We used analysis of spatial correlations, pointer years analysis and comparison with historical data and climate reconstructionsWhat? (results) We showed that climatic response is changing along latitudinal gradient, trees are more temperature sensitive in the north and moisture sensitive in the south – these results allow interpretation of long chronologies; Pointer years analysis showed weather conditions that lead to anomalous tree growth;Ppointer years coincide with historical data, chronologies show correlation with climate reconstructions – it demonstrates good paleoclimatic potential of tree-ring width chronologies in this regionPerspectivesNew long chronologiesOther proxies: stable isotopes, maximum latewood densityBuilding regional reconstructions and including them into large projects (like PAGES 2k Network)
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Acknowledgements
23/24Vladimir Matskovsky Climatic signal in tree-ring width chronologies of European Russia
Colleagues from our Tree-ring laboratoryfor their contribution in this research
PAGESfor the possibility to give a talk on the 2nd YSM
PAGES and Asia-Pacific Network for Global Change Research for financial support that made my participation in this meeting possible
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Thanks for your attention!