NEEM-2011-S1 ice-core aerosol record (conductivity, NH4, NO3, BC, acidity, Na, Mg, S, Ca, Mn, Sr, Ce) in NW-Greenland at 2 cm resolution from 86-1997 CE on the annual-layer counted NS1-2011 chronology

• Main Authors: Sigl, Michael, McConnell, Joseph R
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: acidity; aerosols; Age; ammonium; annual-layer-counting; black carbon; calcium; Cerium; chronology; Common Era; Conductivity; specific; DEPTH; ice/snow; dust; Eldgja; GICC05; Greenland; Ice core; ICEDRILL; Ice drill; ICP-MS; Inductively coupled plasma mass spectrometry; Krakatau volcano; Laki; magnesium; manganese; Miyake events; mystery cloud 536; NEEM-2011-S1; nitrate; NS1-2011; Samalas; sodium; solar proton event 775; SP2; Strontium; Sulfur; Tambora; Volcanic aerosol; volcanic eruptions; Mount Parker; Greenland ice core; ice core
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.940553; https://doi.org/10.1594/PANGAEA.940553

A continuous ice core analytical system was used to analyze the ~410 m NEEM-2011-S1 ice core collected in summer 2011 near the NEEM deep drilling site in NW Greenland. The core was analyzed for a broad range of elements and chemical species using a coupled continuous flow analysis system with two inductively coupled plasma mass spectrometers and single-particle soot photometer. The aerosol records are provided at 2 cm depth resolution to account for signal dispersion in the online analytical system. All records are on the NS1-2011 ice-core chronology: Between 1258 and 1997 CE, this chronology is based on mannual annual-layer counting based on multi-parameter aerosol records constrained by historic volcanic age markers (i.e. Krakatao 1883; Tambora 1815; Laki 1783; Mount Parker 1641; Huaynaputina 1600; Veidivötn 1477; Samalas 1257). Between 86 CE and 1258 CE, this chronology is based on automated annual-layer counting using the StratiCounter program, an automated, objective, annual-layer detection method based on Hidden Markov Model algorithms based on multi-parameter aerosol records and constrained by a solar proton events in 775 and 993 CE, and documentary evidence of volcanic dust veils in 536, 626 and 939 CE.