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Record #92455:
Numerical models of steady-state thickness and basal ice configurations of the central Ronne Ice Shelf, Antarctica / Manfred A. Lange, Douglas R. MacAyeal.
Title: | Numerical models of steady-state thickness and basal ice configurations of the central Ronne Ice Shelf, Antarctica / Manfred A. Lange, Douglas R. MacAyeal. |
Author(s): | Lange, Manfred A. MacAyeal, Douglas R. |
Date: | 1988. |
In: | Annals of Glaciology. (1988.), Vol. 11 (1988) |
Abstract: | Earlier radar surveys and bore-hole measurements suggested existence of lobe-shaped basal layer of undetermined nature characterized by high radio-wave absorptivity and by thicknesses up to 300 m. This basal layer and associated ice-shelf thickness and flow distributions are reconstructed using time-dependent ice-shelf model forced with prescribed basal freezing rates. Characteristics of basal layer are controlled by two factors: long ice-column residence times in unventilated pocket between Henry and Korff ice rises and Doake Ice Rumples, and basal freezing rates in pocket that exceed snow-accumulation rate (currently averaging 0.35 m a⁻¹ ice equivalent across ice shelf) |
Notes: | Annals of Glaciology. Vol. 11 :64-70 (1988). |
Keywords: | 551.324.28 -- Ice shelves: Ronne Ice Shelf. 551.324.8 -- Land ice, structure and surface features: Ronne Ice Shelf. 551.32 -- Glaciology. 551.324 -- Land ice. 551.324.3 -- Land ice, depth measurements: Ronne Ice Shelf. E5 -- Glaciology: land ice. (*7) -- Antarctic regions. (*728) -- Filchner-Ronne ice shelves. |
SPRI record no.: | 92455 |
LDR 01765naa#a2200000#a#4500 001 SPRI-92455 005 20240328230246.0 007 ta 008 240328s1988####xx#b##|##|###|0||#0|eng#d 035 ## ‡aSPRI-92455 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aLange, Manfred A. 245 10 ‡aNumerical models of steady-state thickness and basal ice configurations of the central Ronne Ice Shelf, Antarctica /‡cManfred A. Lange, Douglas R. MacAyeal. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1988. 300 ## ‡ap. 64-70 :‡btables, maps. 500 ## ‡aAnnals of Glaciology. Vol. 11 :64-70 (1988). 520 3# ‡aEarlier radar surveys and bore-hole measurements suggested existence of lobe-shaped basal layer of undetermined nature characterized by high radio-wave absorptivity and by thicknesses up to 300 m. This basal layer and associated ice-shelf thickness and flow distributions are reconstructed using time-dependent ice-shelf model forced with prescribed basal freezing rates. Characteristics of basal layer are controlled by two factors: long ice-column residence times in unventilated pocket between Henry and Korff ice rises and Doake Ice Rumples, and basal freezing rates in pocket that exceed snow-accumulation rate (currently averaging 0.35 m a⁻¹ ice equivalent across ice shelf) 650 07 ‡a551.324.28 -- Ice shelves: Ronne Ice Shelf.‡2udc 650 07 ‡a551.324.8 -- Land ice, structure and surface features: Ronne Ice Shelf.‡2udc 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.324 -- Land ice.‡2udc 650 07 ‡a551.324.3 -- Land ice, depth measurements: Ronne Ice Shelf.‡2udc 650 07 ‡aE5 -- Glaciology: land ice.‡2local 651 #7 ‡a(*7) -- Antarctic regions.‡2udc 651 #7 ‡a(*728) -- Filchner-Ronne ice shelves.‡2udc 700 1# ‡aMacAyeal, Douglas R. 773 0# ‡7nnas ‡tAnnals of Glaciology. ‡gVol. 11 (1988) ‡wSPRI-60773 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240328