Continuous electrical records covering a climatic cycle are presented for the Greenland Ice Core Project deep ice core from Greenland. Electrical conductivity measurement (ECM) measures the acid content of the ice, and the dielectric profile (DEP) responds to acid, ammonium, and chloride. All features seen can be explained by chemical changes in the ice, and there is no evidence so far for any major change in electrical response with depth or age of the ice. Both records are dominated by the acidity of the ice which varies strongly from acidic in warm periods to alkaline in cold periods, controlled by neutralization by alkaline dust (calcareous and other mineral dust). When Ca is low, the acidity (mainly nitric acid) has a fairly constant b...
Results from six firn cores obtained during a 426 km long northern Greenland traverse in 2015 betwee...
210-year records of dust concentration, electrical conductivity, acidity (pH), non-sea salt sulfate ...
The acid content of ice core samples provides information regarding the history of volcanism, biogen...
Continuous electrical records covering a climatic cycle are presented for the Greenland Ice Core Pro...
© 1997 by the American Geophysical Union. High-resolution continuous profiles were obtained on the G...
pH is a master variable that controls many chemical reactions in nature due to the abundance of acid...
The Greenland Ice Sheet Project 2 (GISP2) electrical conductivity measurement (ECM) record is an ind...
Although quantitative interpretation of the low-frequency electrical conductivity of ice cores from ...
THE direct-current electrical conductivity of glacial ice depends on its acidity1–3, and can also in...
A detailed dielectric profiling (DEP) conductivity profile (σ∞) measured in the 6 m of the basal sil...
A continuous direct measurement technique has been developed for the accurate determination of pH an...
Extremely rapid fluctuations observed in records of electrical conductivity measurements (ECM) from ...
Electrical and chemical analysis of the GRIP ice core from Summit in central Greenland confirms that...
Results from six firn cores obtained during a 426 km long northern Greenland traverse in 2015 betwee...
The acid content of ice core samples provides information regarding the history of volcanism, biogen...
Results from six firn cores obtained during a 426 km long northern Greenland traverse in 2015 betwee...
210-year records of dust concentration, electrical conductivity, acidity (pH), non-sea salt sulfate ...
The acid content of ice core samples provides information regarding the history of volcanism, biogen...
Continuous electrical records covering a climatic cycle are presented for the Greenland Ice Core Pro...
© 1997 by the American Geophysical Union. High-resolution continuous profiles were obtained on the G...
pH is a master variable that controls many chemical reactions in nature due to the abundance of acid...
The Greenland Ice Sheet Project 2 (GISP2) electrical conductivity measurement (ECM) record is an ind...
Although quantitative interpretation of the low-frequency electrical conductivity of ice cores from ...
THE direct-current electrical conductivity of glacial ice depends on its acidity1–3, and can also in...
A detailed dielectric profiling (DEP) conductivity profile (σ∞) measured in the 6 m of the basal sil...
A continuous direct measurement technique has been developed for the accurate determination of pH an...
Extremely rapid fluctuations observed in records of electrical conductivity measurements (ECM) from ...
Electrical and chemical analysis of the GRIP ice core from Summit in central Greenland confirms that...
Results from six firn cores obtained during a 426 km long northern Greenland traverse in 2015 betwee...
The acid content of ice core samples provides information regarding the history of volcanism, biogen...
Results from six firn cores obtained during a 426 km long northern Greenland traverse in 2015 betwee...
210-year records of dust concentration, electrical conductivity, acidity (pH), non-sea salt sulfate ...
The acid content of ice core samples provides information regarding the history of volcanism, biogen...