North GRIP - 600 Year Annual 10Be Data Berggren, A.-M.; Beer, J.; Possnert, G.; Aldahan, A.; Kubik, P.W.; Christl, M.; Johnsen, S.J.; Abreu, J.; Vinther, B.M. Berggren, A.-M. Beer, J. Possnert, G. Aldahan, A. Kubik, P.W. Christl, M. Johnsen, S.J. Abreu, J. Vinther, B.M. earth science/paleoclimate/ice cores (ice age,null,null,year Common Era,null,ice cores,null,null,N,null) earth science/paleoclimate/ice cores (10Be,bulk ice,null,count,null,ice cores,null,null,N,x1e4 atoms) earth science/paleoclimate/ice cores (10Be,bulk ice,null,count per square centimeter per second,null,ice cores,null,null,N,atoms per square centimeter per second) earth science/paleoclimate/ice cores (accumulation rate,bulk ice,null,meter per year,null,ice cores,null,null,N,null) earth science/paleoclimate/ice cores (depth,null,null,meter,null,ice cores,null,null,N,null) earth science/paleoclimate/ice core (North GRIP>LATITUDE 75.1>LONGITUDE -42.33) Despite the extensive use of 10Be as the most significant information source on past solar activity, there has been only one record (Dye-3, Greenland) providing annual resolution over several centuries. Here we report a new annual resolution 10Be record spanning the period 1389–1994 AD, measured in an ice core from the NGRIP site in Greenland. NGRIP and Dye-3 10Be exhibits similar long-term variability, although occasional short term differences between the two sites indicate that at least two high resolution 10Be records are needed to assess local variations and to confidently reconstruct past solar activity. A comparison with sunspot and neutron records confirms that ice core 10Be reflects solar Schwabe cycle variations, and continued 10Be variability suggests cyclic solar activity throughout the Maunder and Spörer grand solar activity minima. Recent 10Be values are low; however, they do not indicate unusually high recent solar activity compared to the last 600 years. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Berggren, A.-M. Investigator : Beer, J. Investigator : Possnert, G. Investigator : Aldahan, A. Investigator : Kubik, P.W. Investigator : Christl, M. Investigator : Johnsen, S.J. Investigator : Abreu, J. Investigator : Vinther, B.M. 2009-06-02 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/8618 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/ngrip/ngrip-10be.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/ngrip/ngrip-10be.txt English https://www.ncdc.noaa.gov/paleo/study/8618 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/ngrip/ngrip-10be.txt Berggren, A.-M., J. Beer, G. Possnert, A. Aldahan, P. Kubik, M. Christl, S. J. Johnsen, J. Abreu, and B. M. Vinther. 2009. A 600-year annual 10Be record from the NGRIP ice core, Greenland. Geophys. Res. Lett., 36, L11801, doi:10.1029/2009GL038004. START YEAR: 1389 AD * END YEAR: 1995 AD -42.33 75.1 -42.33 75.1