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Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models
Deciphering the effect of climate change separating the influence of confounding factors sediment core records using additive models
2014/4/17
We describe a new approach to modeling sediment core records, one that uses additive models (AMs) incorporating a serial correlation structure to model residual autocorrelation. Species assemblages, f...
Volcanic eruptions recorded in the Illimani ice core（Bolivia）：1918–1998 and Tambora periods
Volcanic eruptions Illimani ice core Tambora periods
2009/3/11
Acid layers of volcanic origin detected in polar snow and ice layers are commonly used to document past volcanic activity on a global scale or, conversely, to date polar ice cores. Although most catac...
Trace elements in South America aerosol during 20th century inferred from a Nevado Illimani ice core, Eastern Bolivian Andes（6350 m asl）
Trace elements South America aerosol Nevado Illimani ice core Eastern Bolivian Andes
2009/3/11
A 137 m ice core drilled in 1999 from Eastern Bolivian Andes at the summit of Nevado Illimani (16º 37' S, 67º 46' W, 6350 m asl) was analyzed at high temporal resolution, allowing a characte...
Radiocarbon analysis in an Alpine ice core: record of anthropogenic and biogenic contributions to carbonaceous aerosols in the past（1650–1940）
Radiocarbon analysis Alpine ice core anthropogenic and biogenic contributions carbonaceous aerosols
2009/1/21
Long-term concentration records of carbonaceous particles (CP) are of increasing interest in climate research due to their not yet completely understood effects on climate. Nevertheless, only poor dat...
The transport history of two Saharan dust events archived in an Alpine ice core
transport history Saharan dust event Alpine ice core
2009/1/4
Mineral dust from the Saharan desert can be transported across the Mediterranean towards the Alpine region several times a year. When coinciding with snowfall, the dust can be deposited on Alpine glac...
Constraints on N2O budget changes since pre-industrial time from new firn air and ice core isotope measurements
N2O budget changes pre-industrial time new firn air ice core isotope measurements
2008/12/31
A historical record of changes in the N2O isotope composition is important for a better understanding of the global N2O atmospheric budget. Here we have combined measurements of trapped gases in the f...
Ice thinning, upstream advection, and non-climatic biases for the upper 89% of the EDML ice core from a nested model of the Antarctic ice sheet
upstream advection EDML ice core Antarctic ice sheet
2008/11/7
A nested ice flow model was developed for eastern Dronning Maud Land to assist with the dating and interpretation of the EDML deep ice core. The model consists of a high-resolution higher-order ice dy...
Anomalous flow below 2700 m in the EPICA Dome C ice core detected using δ18O of atmospheric oxygen measurements
EPICA Dome C ice core atmospheric oxygen
2008/11/6
While there are no indications of mixing back to 800 000 years in the EPICA Dome C ice core record, comparison with marine sediment records shows significant differences in the timing and duration of...
To interpret new high resolution climate records it becomes more and more important to know about the succession of climate events. Such knowledge is hard to get especially when dealing with different...
The EPICA (European Project for Ice Coring in Antarctica) Dome C drilling in East Antarctica has now been completed to a depth of 3260 m, at only a few meters above bedrock. Here we present the new ED...
“EDML1”：a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years
EPICA Dronning Maud Land Antarctica
2008/11/5
A chronology called EDML1 has been developed for the EPICA ice core from Dronning Maud Land (EDML). EDML1 is closely interlinked with EDC3, the new chronology for the EPICA ice core from Dome-C (EDC) ...
Application of sediment core modelling to interpreting the glacial-interglacial record of Southern Ocean silica cycling
sediment core glacial-interglacial Southern Ocean silica cycling
2008/11/5
Sediments from the Southern Ocean reveal a meridional divide in biogeochemical cycling response to the glacial-interglacial cycles of the late Neogene. South of the present-day position of the Antarct...
Change in ice rheology during climate variations – implications for ice flow modelling and dating of the EPICA Dome C core
ice rheology ice flow EPICA Dome C core
2008/11/4
The study of the distribution of crystallographic orientations (i.e., the fabric) along ice cores provides information on past and current ice flow in ice-sheets. Besides the usually observed formatio...
Black carbon record based on a shallow Himalayan ice core and its climatic implications
black carbon Himalayan ice core climatic implications
2008/10/31
A continuous measurement for black carbon (hereafter "BC") in a 40 m shallow ice core retrieved from the East Rongbuk Glacier (hereafter "ERG") in the northeast saddle of Mt. Qomolangma (Everest) prov...
A 60 000 year Greenland stratigraphic ice core chronology
Greenland stratigraphic ice core chronology
2008/10/29
The Greenland Ice Core Chronology 2005 (GICC05) is a time scale based on annual layer counting of high-resolution records from Greenland ice cores. Whereas the Holocene part of the time scale is based...