Old World Drought Atlas Cook, E.R. Cook, E.R. Palmer Drought Index Reconstruction earth science/paleoclimate/climate reconstructions|tree ring (age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (Palmer Drought Severity Index,null,null,dimensionless,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (latitude,null,null,degree north,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/climate reconstructions|tree ring (longitude,null,null,degree east,null,climate reconstructions|tree ring,null,null,N,null) earth science/paleoclimate/reconstructions (Old World>LATITUDE >LONGITUDE ) Climate model projections suggest widespread drying in the Mediterranean Basin and wetting in Fennoscandia in the coming decades largely as a consequence of greenhouse gas forcing of climate. To place these and other "Old World" climate projections into historical perspective based on more complete estimates of natural hydroclimatic variability, we have developed the "Old World Drought Atlas" (OWDA), a set of year-to-year maps of tree-ring reconstructed summer wetness and dryness over Europe and the Mediterranean Basin during the Common Era. The OWDA matches historical accounts of severe drought and wetness with a spatial completeness not previously available. In addition, megadroughts reconstructed over north-central Europe in the 11th and mid-15th centuries reinforce other evidence from North America and Asia that droughts were more severe, extensive, and prolonged over Northern Hemisphere land areas before the 20th century, with an inadequate understanding of their causes. The OWDA provides new data to determine the causes of Old World drought and wetness and attribute past climate variability to forced and/or internal variability. STUDY NOTES: Gridded (0.5x0.5 degree) reconstruction of drought (Palmer Drought Severity Index, PDSI) for Europe and the Mediterranean region over the past 2,000 years, based on tree-ring data. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Cook, E.R. 2015-11-06 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/19419 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda.nc https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-xy.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-maps.zip https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-animation.zip https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-readme.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda.nc https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-xy.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-maps.zip https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-animation.zip https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-readme.txt English https://www.ncdc.noaa.gov/paleo/study/19419 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda.nc https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-xy.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-maps.zip https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-animation.zip https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/owda-readme.txt Edward R. Cook, Richard Seager, Yochanan Kushnir, Keith R. Briffa, Ulf Büntgen, David Frank, Paul J. Krusic, Willy Tegel, Gerard van der Schrier, Laia Andreu-Hayles, Mike Baillie, Claudia Baittinger, Niels Bleicher, Niels Bonde, David Brown, Marco Carrer, Richard Cooper, Katarina Čufar, Christoph Dittmar, Jan Esper, Carol Griggs, Björn Gunnarson, Björn Günther, Emilia Gutierrez, Kristof Haneca, Samuli Helama, Franz Herzig, Karl-Uwe Heussner, Jutta Hofmann, Pavel Janda, Raymond Kontic, Nesibe Köse, Tomáš Kyncl, Tom Levanič, Hans Linderholm, Sturt Manning, Thomas M. Melvin, Daniel Miles, Burkhard Neuwirth, Kurt Nicolussi, Paola Nola, Momchil Panayotov, Ionel Popa, Andreas Rothe, Kristina Seftigen, Andrea Seim, Helene Svarva, Miroslav Svoboda, Terje Thun, Mauri Timonen, Ramzi Touchan, Volodymyr Trotsiuk, Valerie Trouet, Felix Walder, Tomasz Ważny, Rob Wilson and Christian Zang2015Old World megadroughts and pluvials during the Common EraScience Advancese150056111010.1126/sciadv.1500561 http://advances.sciencemag.org/content/1/10/e1500561.abstract START YEAR: 0 AD * END YEAR: 2012 AD -11.75 27.25 44.75 70.75