Journal cover Journal topic
Climate of the Past An interactive open-access journal of the European Geosciences Union
Clim. Past, 13, 421-436, 2017
http://www.clim-past.net/13/421/2017/
doi:10.5194/cp-13-421-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
08 May 2017
Reconstructing paleoclimate fields using online data assimilation with a linear inverse model
Walter A. Perkins and Gregory J. Hakim

Data sets

MPI-ESM-P Last Millennium Simulation
J. Jungclaus, M. Giorgetta, C. Reick, S. Legutke, V. Brovkin, T. Crueger, M. Esch, K. Fieg, N. Fischer, K. Glushak, V. Gayler, H. Haak, H.-D. Hollweg, S. Kinne, L. Kornblueh, D. Matei, T. Mauritsen, U. Mikolajewicz, W. Müller, D. Notz, T. Pohlmann, T. Raddatz, S. Rast, E. Roeckner, M. Salzmann, H. Schmidt, R. Schnur, J. Segschneider, K. Six, M. Stockhause, J. Wegner, H. Widmann, K.-H. Wieners, M. Claussen, J. Marotzke, and B. Stevens
doi:10.1594/WDCC/CMIP5.MXEPpk
CCSM4 Last Millennium Simulation
Earth System Grid at NCAR
https://www.earthsystemgrid.org/dataset/cmip5.output1.NCAR.CCSM4.past1000.mon.atmos.Amon.r1i1p1.html
20th Century Reanalysis
NOAA
http://www.esrl.noaa.gov/psd/
Berkeley Earth Surface Tempearature Analysis
Berkeley Earth
http://berkeleyearth.org/data/
GISTEMP Surface Temperature Analysis
GISTEMP Team, NASA GISS
https://data.giss.nasa.gov/gistemp/
PAGES 2k phase 1 Proxy Database
PAGES 2k Network
https://www.ncdc.noaa.gov/paleo-search/study/14188
Code and Experiment Data for "Reconstructing paleoclimate fields using online data assimilation with a linear inverse model"
W. A. Perkins and G. J. Hakim
doi:10.6069/h5vd6wc0
Publications Copernicus
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Short summary
We examine the skill of a novel data assimilation approach to paleoclimate reconstruction that uses linear climate model forecasts. Many reconstruction studies forego the use of forecasts from climate models due to their high computational expense and relatively low skill. We show that the use of simpler linear models can improve reconstruction skill for both global mean temperature and spatial fields. Improvements displayed seem to be related to dynamical constraints from the forecasts.
We examine the skill of a novel data assimilation approach to paleoclimate reconstruction that...
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