Pages2K Temperature Reconstruction Rediscovers the Medieval Warm Period They fixed their inverted data problem, too Revisions to Pages2K Arctic Kaufman and the PAGES2K Arctic2K group recently published a series of major corrections to their database, some of which directly respond to Climate Audit criticism. The resulting reconstruction has been substantially revised with substantially increased medieval warmth. His correction of the contaminated Igaliku series is unfortunately incomplete and other defects remain. In several Climate Audit posts, I criticized PAGES2K for using Miller’s Hvitarvatn, Iceland varve data, upside down to the interpretation of the original author, an eminent paleo-scientist (see here; here). Kaufman stated that they “corrected temperature relation” of the Hvitarvatn series: The interpreted temperature relation of the series from Hvítárvatn was corrected from positive to negative. The series as now reoriented is shown at left. This confirmation of my interpretation is of considerable interest to me, since there seems to be a close relationship between the Iceland varve series and Baffin Island varve series, a location of considerable interest from a multiproxy perspective, as discussed in a previous post here, where I showed the close relationship between the Hvitarvatn, Iceland varve thickness series and the Big Round Lake, Baffin Island varve thickness as below. PAGES2K is in the awkward position of orienting the Hvitarvatn in an opposite orientation to their orientation of Big Round Lake, though the two series are evidently responding similarly. It is surely unacceptable for assessment-quality studies to leave such inconsistencies unresolved. climateaudit.org/2014/10/01/revisions-to-pages2k-arctic/
Posted on: Sat, 04 Oct 2014 22:29:47 +0000
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