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Record #123365:
Radar absorption due to impurities in Antarctic ice / Hugh Corr, John Christopher Moore, Keith W. Nicholls.
Title: | Radar absorption due to impurities in Antarctic ice / Hugh Corr, John Christopher Moore, Keith W. Nicholls. |
Author(s): | Corr, Hugh. Moore, John Christopher. Nicholls, Keith W. |
Date: | 1993. |
In: | Geophysical Research Letters. (1993.), Vol. 20(11) (1993) |
Abstract: | Measurements of radar echo strength on Ronne and George VI ice shelves show differences in ice-column absorption that cannot be resolved by considering ice temperatures alone. Presents absorption model that resolves discrepancy by considering ice impurity concentration as well as ice temperature. Using this model, impurity levels in ice column at George VI site are deduced from radar strength measurements and found to be typical of levels measured in Antarctic ice at similar elevations and distances from sea. In particular, measurements suggest that concentrations of biogenically derived acids are much lower than unusually high levels found on east coast of Antarctic Peninsula. |
Notes: | Geophysical Research Letters. Vol. 20(11) :1071-1074 (1993). |
Keywords: | 551.32 -- Glaciology. 551.324 -- Land ice. 551.324.28 -- Ice shelves. 551.324.84 -- Land ice, impurities. 54 -- Chemistry. 621.396.96 -- Radar. 53.087.23 -- Remote sensing. .000(410) -- British author. 519.673 -- Modelling. E5 -- Glaciology: land ice. (*7) -- Antarctic regions. (*726.5) -- Antarctic Peninsula, west coast and islands. (*728) -- Filchner-Ronne ice shelves. |
SPRI record no.: | 123365 |
LDR 01912naa#a2200000#a#4500 001 SPRI-123365 005 20240328172618.0 007 ta 008 240328s1993####xx#b##|##|###|0||#0|eng#d 035 ## ‡aSPRI-123365 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aCorr, Hugh. 245 10 ‡aRadar absorption due to impurities in Antarctic ice /‡cHugh Corr, John Christopher Moore, Keith W. Nicholls. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1993. 300 ## ‡ap. 1071-1074 :‡btable, map. 500 ## ‡aGeophysical Research Letters. Vol. 20(11) :1071-1074 (1993). 520 3# ‡aMeasurements of radar echo strength on Ronne and George VI ice shelves show differences in ice-column absorption that cannot be resolved by considering ice temperatures alone. Presents absorption model that resolves discrepancy by considering ice impurity concentration as well as ice temperature. Using this model, impurity levels in ice column at George VI site are deduced from radar strength measurements and found to be typical of levels measured in Antarctic ice at similar elevations and distances from sea. In particular, measurements suggest that concentrations of biogenically derived acids are much lower than unusually high levels found on east coast of Antarctic Peninsula. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.324 -- Land ice.‡2udc 650 07 ‡a551.324.28 -- Ice shelves.‡2udc 650 07 ‡a551.324.84 -- Land ice, impurities.‡2udc 650 07 ‡a54 -- Chemistry.‡2udc 650 07 ‡a621.396.96 -- Radar.‡2udc 650 07 ‡a53.087.23 -- Remote sensing.‡2udc 650 07 ‡a.000(410) -- British author.‡2udc 650 07 ‡a519.673 -- Modelling.‡2udc 650 07 ‡aE5 -- Glaciology: land ice.‡2local 651 #7 ‡a(*7) -- Antarctic regions.‡2udc 651 #7 ‡a(*726.5) -- Antarctic Peninsula, west coast and islands.‡2udc 651 #7 ‡a(*728) -- Filchner-Ronne ice shelves.‡2udc 700 1# ‡aMoore, John Christopher. 700 1# ‡aNicholls, Keith W. 773 0# ‡7nnas ‡tGeophysical Research Letters. ‡gVol. 20(11) (1993) ‡wSPRI-1033 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240328