Supplementary Materials for: R. Connolly, W. Soon, M. Connolly, S. Baliunas, J. Berglund, C.J. Butler, R.G. Cionco, A.G. Elias, V. Fedorov, H. Harde, G.W. Henry, D.V. Hoyt, O. Humlum, D.R. Legates, N. Scafetta, J.-E. Solheim, L. Szarka, V.M. Velasco Herrera, H. Yan and W.J. Zhang (2023). "Challenges in the detection and attribution of Northern Hemisphere surface temperature trends since 1850". Research in Astronomy and Astrophysics. https://doi.org/10.1088/1674-4527/acf18e Description: A dataset for the detection and attribution of Northern Hemisphere surface temperature trends since 1850. Contents of dataset Tab Description NH temperatures 5 different Northern Hemisphere (NH) annual surface temperature (ST) estimates in temperature anomalies (°C) relative to 1901-2000 averages. TSI 1850-2018 27 different Total Solar Irradiance (TSI) reconstructions. At 1 Astronomical Unit (W/m2) relative to 1901-2000 average. IPCC AR6 forcings IPCC AR6 radiative forcings (RF) time series (for the 1850-2018 period) in units of W/m2 Fitting statistics Fitting statistics and results from all fits Key results Summary statistics and results Fits - Rural-only Multi-linear regression fitting results for Rural-only ST Fits - Urban & rural Multi-linear regression fitting results for Urban & rural ST Fits - SST Multi-linear regression fitting results for Sea surface temperature (SST) Fits - Tree-rings Multi-linear regression fitting results for tree-ring proxy based ST Fits - Glaciers Multi-linear regression fitting results for glacier-length proxy based ST Model - Rural-only Breakdown of model components for fits to Rural-only ST Model - Urban & rural Breakdown of model components for fits to urban & rural ST Model - SST Breakdown of model components for fits to SST Model - Tree-rings Breakdown of model components for fits to tree-ring proxy-based ST Model - Glaciers Breakdown of model components for fits to glacier-length proxy-based ST