Tree-Ring Laboratory
This presentation is the property of its rightful owner.
Sponsored Links
1 / 24

Vladimir Matskovsky PowerPoint PPT Presentation


  • 105 Views
  • Uploaded on
  • Presentation posted in: General

Tree-Ring Laboratory. Institute of Geography RAS Moscow, Russia. Climatic signal in tree-ring width chronologies of European Russia: spatial change and perspectives for paleoclimatic reconstructions. Vladimir Matskovsky

Download Presentation

Vladimir Matskovsky

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Vladimir matskovsky

Tree-Ring Laboratory

Institute of Geography RAS

Moscow, Russia

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 Meeting

The Past: A Compass for Future Earth

11-12 February 2013, Goa, India


Vladimir matskovsky

Motivation

  • 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

2/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Motivation

“…chronological errors will accumulate back in time as missing rings are encountered.”

3/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Constructing long chronologies for European Russia

70°N 60°E

50°N 20°E

4/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Identifying climatic signal: objectives

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

5/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Identifying climatic signal: materials and methods

Chronologies of living trees

  • Pine (Pinussylvestris )

  • Spruce (Piceaabies, obovata)

  •  Larch (Larixsibirica)

6/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Identifying climatic signal: materials and methods

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.

7/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Identifying climatic signal: materials and methods

Methods

  • Correlation analysis

  • Pointer years analysis

  • Comparison with historical data

  • Comparison with climate reconstructions

8/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Pine minimum air temperatures may august

Identifying climatic signal: results

PineMinimum air temperatures(May-August)

Climatic response of tree ring chronologies

9/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Pine soil moisture may

Identifying climatic signal: results

PineSoil moisture (May)

Climatic response of tree ring chronologies

10/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Pine palmer drought severity index pdsi july

Identifying climatic signal: results

PinePalmer Drought Severity Index (PDSI)(July)

Climatic response of tree ring chronologies

11/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Pine wet day frequency june july

Identifying climatic signal: results

PineWet day frequency(June-July)

Climatic response of tree ring chronologies

12/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Spruce mean air temperatures june july

Identifying climatic signal: results

SpruceMean air temperatures(June-July)

Climatic response of tree ring chronologies

13/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Spruce precipitation july

Identifying climatic signal: results

SprucePrecipitation(July)

Climatic response of tree ring chronologies

14/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Larch minimum air temperatures june

Identifying climatic signal: results

LarchMinimum air temperatures(June)

Climatic response of tree ring chronologies

15/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Larch relative air humidity august

Identifying climatic signal: results

LarchRelative air humidity(August)

Climatic response of tree ring chronologies

16/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Identifying climatic signal: results

Weather conditions forming pointer years

VI-VII

VI-VII

V-VIII

V-VIII

IV-IX

IV-IX

X-III

X-III

X-IX

X-IX

17/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Paleoclimatic information in long chronologies

Chronology «Vologda» MannandJones, 2003,R = 0.59

D’Arrigoetal., 2006,R=0.35

z-scores

Years

18/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Paleoclimatic information in long chronologies

z-scores

«Solovki» chronologyKononov et al., 2009,R = 0.61

Years

19/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Paleoclimatic information in long chronologies

«Solovki» chronology Solar activity (DelaygueandBard, 2010),R = 0.63

z-scores

Years

20/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Paleoclimatic information in long chronologies

Positive «pointer years» Negative «pointer years»

All the «pointer years»

Frequency

Century

21/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Summary

Why? (objectives)

To understand what climate information can be extracted from long tree-ring width chronologies in European Russia

How? (materials and methods)

We used analysis of spatial correlations, pointer years analysis and comparison with historical data and climate reconstructions

What? (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 region

Perspectives

New long chronologies

Other proxies: stable isotopes, maximum latewood density

Building regional reconstructions and including them into large projects (like PAGES 2k Network)

22/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Acknowledgements

Colleagues from our Tree-ring laboratory

for their contribution in this research

PAGES

for 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

23/24

Vladimir MatskovskyClimatic signal in tree-ring width chronologies of European Russia


Vladimir matskovsky

Thanks for your attention!


  • Login