Comparison with the Ice Core Records
Snow accumulation variability over the West Antarctic Ice Sheet since 1900: a comparison of ice core records with ERA-20C reanalysis
... 37 ice core records. Aggregating a large number of ice cores can reduce the small-scale noise due to drifting snow erosion/deposition, and thus enhance the reliability of regional climate ...
9
Influence of the Tungurahua eruption on the ice core records of Chimborazo, Ecuador
... The comparison of two shallow ice cores re- covered in 1999 and 2000 from the same place on the Chimborazo summit glacier revealed the influence of the co- incident Tungurahua volcanic eruption on their ...
8
Ice core records as sea ice proxies: An evaluation from the Weddell Sea region of Antarctica
... Our comparison with a longer historical record of sea ice from the South Orkney Islands confirms the negative relationship that exists with MSA in this region, and identifies characteristic variability at ...
38
High-resolution mineral dust and sea ice proxy records from the Talos Dome ice core
... sea ice proxy) records along the East Antarctic Talos Dome deep ice core in centennial resolution reaching back 150 thousand years (ka) before ...Antarctic ice core ...
19
High-resolution mineral dust and sea ice proxy records from the Talos Dome ice core
... sea ice proxy) records along the East Antarctic Talos Dome deep ice core in centennial resolution reaching back 150 thousand years (ka) before ...Antarctic ice core ...
19
Estimation and calibration of the water isotope differential diffusion length in ice core records
... In Fig. 10 we show the differential diffusion lengths for the EDML data using both varying noise levels and a fixed noise level. The chosen fixed noise levels correspond to an uncer- tainty of 0.04 and 0.45 (1σ SD) for δ ...
16
Variability of sulfate signal in ice core records based on five replicate cores
... posite records, built from cores taken at both ...one core for such a ...five ice cores, drilled 1 m apart from each ...single core is used as the site ref- erence, with a bulk probability of ...
11
Inverse stochastic–dynamic models for high-resolution Greenland ice core records
... dt + QdW(t ) . (3) Here x is the two-dimensional time series of δ 18 O and dust, which is sampled at time steps t i in the NGRIP ice core. The model has a cubic drift term and retarded, non- Markovian ...
20
Variability of sulfate signal in ice core records based on five replicate cores
... on ice core analysis have significantly improved over the past few decades by incorporating multiple-core analyses with a high temporal resolution from different parts of the polar re- gions into a ...
12
Greenland precipitation trends in a long-term instrumental climate context (1890-2012): evaluation of coastal and ice core records
... The comparison supports that a clear negative trend occurred based on seasonal changes in autumn, winter and spring precipitation for 1991–2012 (Tables 5b, d, ...
47
Synchronization of ice core records via atmospheric gases
... gas age is on the order of a few hundred years at most. Fig- ure 1 shows the two δ 18 O atm records on the same time scale. The two records differ by more than what would be expected from the uncertainty of ...
6
High resolution ice core records of climate variability and forcing
... Antarctic ice core records that robustly represents the timing of regional Antarctic climate change during the last ...Greenland ice core records, allowing a detailed mapping of ...
211
Inferring palaeo-accumulation records from ice-core data by an adjoint-based method: application to James Ross Island’s ice core
... by ice-flow ...the ice core retrieved from James Ross Is- land, ...by ice-core analysis together with observed full-depth velocity in order to construct a complete climatic record of ...
11
Extracting the annual signal from Greenland ice core chemistry and isotopic records
... and Henrik B. Clausen Department of Geophysics, NBIfAFG, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark Stratigraphic dating of ice cores by identification and counting of annual ...
Non-climatic signal in ice core records: lessons from Antarctic megadunes
... In contrast, windward sides of the dunes accumulate more snow that is enriched by light water isotopes. Using the GPR data, we were able to trace the drift of the dunes and calculate their velocity, 4.6 ± 1.1 m yr −1 . ...
11
Ice Core Paleovolcanic Records from the St. Elias Mountains, Yukon, Canada
... temperature records can be used to directly infer climatic conditions following the Katmai ...these records by means of a regression line with the Southern Oscillation index following techniques described ...
22
Fabric along the NEEM ice core, Greenland, and its comparison with GRIP and NGRIP ice cores
... NEEM ice core, Greenland was mea- sured in the field by an automatic ice texture analyzer every 10 m, from 33 m down to 2461 m ...others ice cores drilled along the same ridge; the GRIP ...
10
Apparent discrepancy of Tibetan ice core δ18O records may be attributed to misinterpretation of chronology
... Abstract. Ice cores from the Tibetan Plateau (TP) are widely used for reconstructing past climatic and environmental con- ditions that extend beyond the instrumental ...interpreting ice core ...
10
Ice Core Records From Volcanoes to Supernovas. The Astronomers Tycho Brahe and Johannes Kepler
... Ice Core Records – From Volcanoes to Supernovas The Astronomers Tycho Brahe and Johannes Kepler Tycho Brahe (1546-1601, shown at left) was a nobleman from Denmark who made astronomy his life's work ...
5
Importance of precipitation seasonality for the interpretation of Eemian ice core isotope records from Greenland
... Greenland ice cores extending back into the Eemian show a reduced depletion in δ 18 O of about 3 ‰ for this period, which suggests a significant warming of several degrees over the Greenland ice ...
12