; climateInterpretation_seasonality changed - was originally July

Error of prediction of the chironomid-temperature inference model used for reconstruction

Trachsel, M.;Grosjean, M.;Schnyder, D.;Kamenik, C.;Rein, B.

Scanning reflectance spectroscopy (380–730 nm): a novel method for quantitative high-resolution climate reconstructions from minerogenic lake sediments

We used multiple linear regression (MLR) to establish a calibration model that explains 84% of the variance of summer (JJAS) temperature during the calibration period 1864_1950. We then applied the calibration model downcore to develop a quantitative summer temperature reconstruction extending back to AD 1177.

Root-mean-squared error of prediction RMSEP

Büntgen, Ulf;Frank, David C.;Nievergelt, Daniel;Esper, Jan

Summer temperature variations in the European Alps, A.D. 755–2004

Instrumental measurements from high- (low-) elevation grid boxes back to 1818 (1760) reveal strongest growth response to current-year June_September mean temperatures. The reconstruction correlates at 0.7 with high-elevation temperatures back to 1818 with a greater signal in the higher-frequency domain (r 0.8).

Büntgen, Ulf;Frank, David;Neuenschwander, Thomas;Esper, Jan

Fading temperature sensitivity of Alpine tree growth at its Mediterranean margin and associated effects on large-scale climate reconstructions

While the highest correlation of 0.53 is gained from the HISTALP southwest subset significantly lower correlation of 0.27 originates from the low-resolution HadCRUT3v data (Brohan et al. 2006) both against June_August temperature means.

Esper, Jan;Frank, David C.;Timonen, Mauri;Zorita, Eduardo;Wilson, Rob J. S.;Luterbacher, Jürg;Holzkämper, Steffen;Fischer, Nils;Wagner, Sebastian;Nievergelt, Daniel;Verstege, Anne;Büntgen, Ulf

The final reconstruction (N-scan) was calibrated against regional JJA temperature (r 1876_2006 = 0.77) and spans the 138 bc_ ad 2006 period.

Martín-Chivelet, Javier;Muñoz-García, M. Belén;Edwards, R. Lawrence;Turrero, María J.;Ortega, Ana I.