Spatial Sampling

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Referring to articles
Global-Scale Temperature Patterns and Climate Forcing Over the Past Six Centuries
Michael E. Mann and Raymond S. Bradley
Department of Geosciences, University of Massachusetts, Amherst, Massachusetts
Malcom K. Hughes
Laboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona
Published: 1998, Macmillan Publisher Ltd.
Nature, Vol. 392, p.779-787

Northern Hemisphere Temperatures During the Past Millennium: Inferences, Uncertainties, and Limitations
Michael E. Mann and Raymond S. Bradley
Department of Geosciences, University of Massachusetts, Amherst, Massachusetts
Malcom K. Hughes
Laboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona
Published: 1999, American Geophysical Union
Geophysical Research Letters, Vol. 26, No. 6, p.759-762


Grid-Point Locations, Calibration

Plotted using data from gridpoints-cal.loc. The view angle is not an issue with this picture, owing to the high degree of replication.



Grid-Point Locations, Verification

Plotted using data from gridpoints-ver.loc



Grid-Point Locations, Long Instrumental

Plotted using data from mbh98datasummary.txt



MBH99 Proxy Indicator Locations

Plotted using data from MBH99 Table 1. (No ITRDB PCs)