A community-sourced global database of paleo-water …jsmerdon/pages2kpmip3/05_PAGES2...NOAA-NCDC U....
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A community-sourced global database of paleo-water isotopes from the past two millennia Bronwen Konecky, U. Colorado & Oregon State U. Jud Partin, U. Texas at Austin Iso2k @ PAGES2k-PMIP3 Workshop 1 May 2016
Transcript of A community-sourced global database of paleo-water …jsmerdon/pages2kpmip3/05_PAGES2...NOAA-NCDC U....
A community-sourced global database of paleo-water isotopes from the past two millennia
Bronwen Konecky, U. Colorado & Oregon State U. Jud Partin, U. Texas at Austin
Iso2k@PAGES2k-PMIP3Workshop 1May2016
The challenges of synthesizing hydroclimate proxy records...
...are the origins of Iso2k
“Hydro proxies are so complicated!”
“Precipitation is so localized!”
And the usual suspects: • low-res & hi-res records • age model uncertainties • seasonal biases • etc. etc.
Iso2k@PAGES2k-PMIP3Workshop 2May2016
The Iso2k strategy:
“Hydro proxies are so complicated!”
“Precipitation is so localized!”
And the usual suspects: • low-res & hi-res records • age model uncertainties • seasonal biases • etc. etc.
Document it
Use proxies for regional patterns
Own it
Iso2k@PAGES2k-PMIP3Workshop 3May2016
Many proxy archives record δ18O and δD of environmental waters
U. Missouri Southampton University
NOAA-NCDC
WWF U. Maine
K. Cobb (Georgia Tech)
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These archives often record a common signal
δDprecip δ18Oprecip
δDwax δ18Ocave
Evans et al., 2013 5May2016
The δ18O and δD of environmental waters (precip, vapor, groundwater, surface water, seawater, etc.) track regional circulation
Bowen, 2010 Iso2k@PAGES2k-PMIP3Workshop 6May2016
May2016 Iso2k@PAGES2k-PMIP3Workshop 7
Example of δ18O and δD
tracking regional
circulation
We designed every aspect of this project together– open and transparent
Iso2k@PAGES2k-PMIP3Workshop 8May2016
Team of archive experts
Co-Leader Bronwen Konecky (U. Colorado/Oregon State U., USA) Co-Leader Jud Partin (U. Texas-Austin, USA) Data Management Nick McKay (Northern Arizona U., USA) Corals Diane Thompson (NCAR, USA) Fossil Groundwaters Kei Yoshimura (U. Tokyo, Japan) Ice Cores Valérie Masson-Delmotte (IPSL/LSCE, France) Lake Sed - Biomarker Elizabeth Thomas (U. Buffalo/U. Massachusetts, USA) Lake Sed - Macro Darrell Kaufman (Northern Arizona U., USA) Marine Sed - Biomarker Guillaume Leduc (CEREGE, France) Marine Sed - Nonorg Lukas Jonkers (Bremen Univ., Germany) Speleothems Jud Partin (U. Texas-Austin, USA) Tree Ring Cellulose Shreyas Managave (Pondicherry U., India, and Brown U., USA)
Iso2k Project Members Bronwen Konecky, Jud Partin, Michael Evans, Shreyas Mangave, Kei Yoshimura, Valerie Masson-Delmotte, Nick McKay, Darrell S Kaufman, Diane Thompson, Lucien von Gunten, Elizabeth Thomas, William D'Andrea, Dmitry Divine, Belen Martrat, Guillaume Leduc, Julien Emile-Geay, Grzegorz Skrzypek, Helen McGregor, Jonathan Tyler, Olivier Antonin Cartapanis, Tim Shanahan, Churakova Olga, Heidi Roop, Ana Moreno, Matthew Jones, Hussein Sayani, Timothe Bolliet, Thomas Opel, Christopher Bosma, Kristine L DeLong, Christian Holme, Margit Schiwikowski, Mark Curran, Jing Gao, Kaustubh Thirumalai and many more...
Key Science Question
Iso2k@PAGES2k-PMIP3Workshop 10May2016
• Do regional/global hydroclimate patterns exhibit coherent responses to decadal- to centennial-scale temperature changes (from PAGES2K Temperature reconstructions) over the past 2 kyr?
Other Key Topics
Iso2k@PAGES2k-PMIP3Workshop 11May2016
• Iso2k patterns & relationship with temperature • Tropical water cycle • Dominant controls on terrestrial δ18O/δD worldwide • Dominant controls on marine δ18O • Climate response to North Atlantic ocean circulation • Isotopic data assimilation • Climate response to North Pacific ocean circulation • Pre-industrial to industrial climate transition • Isotopic response to volcanic eruptions • Lake water isotopes and climate model comparison • δ18O in tree-rings • Pacific coral δ18O records
Data selection criteria for Iso2k (designed to be inclusive)
Iso2k@PAGES2k-PMIP3Workshop 12May2016
Annually banded
Non-annually-banded
Terrestrial Marine Terrestrial Marine Min record duration 30 yr 30 yr 200 yr 200 yr Min resolution
at least 5 data points/2kyr
at least 5 data points/2kyr
We are a METADATA RICH project
Iso2k@PAGES2k-PMIP3Workshop 13May2016
We are a METADATA RICH project
Iso2k@PAGES2k-PMIP3Workshop 14May2016
0 200 400 600 800 1000 1200 1400 1600 1800 2000Year CE
0
200
400
600
# of
pro
xies
Coral
GroundWater
Ice core
Lake Sediment
Marine Sediment
Speleothem
Tree Ring Cellulose
Iso2k@PAGES2k-PMIP3Workshop 15May2016
The Iso2k database v.0 as of 12/2015 (v.1 expected ~end of summer 2016)
~600 records
0 200 400 600 800 1000 1200 1400 1600 1800 2000Year CE
0
200
400
600
# of
pro
xies
Coral
GroundWater
Ice core
Lake Sediment
Marine Sediment
Speleothem
Tree Ring Cellulose
Iso2k@PAGES2k-PMIP3Workshop 16May2016
We continue to welcome help from the community. If you want to help, please contact: Bronwen Konecky ([email protected]), Jud Partin ([email protected])
Iso2k@PAGES2k-PMIP3Workshop 17May2016
