[{"name":"christiansen-2013-nh-1000-1","title":"Northern Hemisphere extratropical 1000-year temperature reconstruction","summary":"1000-year temperature reconstruction for the Northern Hemisphere extratropical region (30\u00b0N-90\u00b0N) by the LOC method. The new LOC method reconstructs the local temperatures at the locations of the proxies. The reconstruction is based on one-dimensional linear regression with the local temperature as the independent variable and the proxy as the dependent variable. The local reconstructed temperatures are then averaged to get the NH mean temperature. While this method preserves low-frequency variability, the drawback is an exaggerated high-frequency variability. This adverse effect can be dampened by temporal averaging and decreases with the number of (independent) proxies.","citations":"Christiansen B, Ljungqvist FC (2011) Reconstruction of the extratropical NH mean temperature over the last millennium with a method that preserves low-frequency variability. Journal of Climate, 24: 6013\u20136034. DOI: 10.1175\/2011JCLI4145.1","comments":"","category":"Atmosphere","subcategory":"Temperature","keywords":"Northern Hemisphere; Temperature; Reconstruction","scientist":"Bo Christiansen, Fredrik Charpentier Ljungqvist","firstname":"Bo","lastname":"Christiansen","address":"Danish Meteorological Institute; Danish Climate Centre; Lyngbyvej 100","postalcode":"DK-2100","city":"Copenhagen \u00d8","province":"","country":"Denmark","parameters":"Paleoclimate > Paleoclimate Reconstructions > Air Temperature Reconstruction","location":"Geographic Region > Northern Hemisphere","progress":"Completed","language":"English","project":"","publisher":"NOAA National Centers for Environmental Information (NCEI)","version":"1","constrains":"None","access":"Free"}]