Sentences with phrase «tree ring density chronologies»

Networks of tree ring width and tree ring density chronologies are used to infer past temperature changes based on calibration with temporally overlapping instrumental data.

Not exact matches

«Potential bias in «updating» tree - ring chronologies using regional curve standardisation: Re-processing 1500 years of Torneträsk density and ring - width data» by Thomas M Melvin, Håkan Grudd and Keith R Briffa in the the journal «Holocene» http://hol.sagepub.com/content/early/2012/10/26/0959683612460791.abstract and https://wattsupwiththat.com/2012/10/28/manns-hockey-stick-disappears-and-crus-briffa-helps-make-the-mwp-live-again-by-pointing-out-bias-in-ther-data/

Instrumental temperatures (1871 - 1997) are in black, circum - Arctic temperature proxies [1600 - 1990, from (2 — Overpeck)-RSB- are in yellow, northern NH tree - ring densities [1550 - 1960, from (3 — Briffa et al 1998 (Nature); Briffa et al 1998 (Proc Roy Soc London)-RRB-, processed to retain low - frequency signals] are in pale blue, NH temperature proxies [1000 - 1992, from (4 — Jones et al 1998)-RSB- are in red, global climate proxies [1000 - 1980, from (5, 6 — MBH99)-RSB- are in purple, and an average of three northern Eurasian tree - ring width chronologies [1 - 1993, from (10 — Briffa et al 2000)-RSB- is in green.