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Record #125400:
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MARC recordSea ice leads and characteristics / Robert S. Pritchard.
| Title: | Sea ice leads and characteristics / Robert S. Pritchard. |
| Author(s): | Pritchard, Robert S. |
| Date: | [1993] |
| Publisher: | Edmonton, Alberta: University of Alberta, Department of Civil Engineering |
| In: | IAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. ([1993]), Vol.2. |
| Abstract: | Plastic sea-ice model is examined to determine relationships between velocity and stress and observed lead patterns. Disparate and apparently conflicting observations are brought into unified theory by assuming that velocity characteristic directions align with leads, but only if external forcing and boundary conditions induce velocity discontinuity along characteristic direction. Existence of velocity characteristic is necessary, but not sufficient, for model to describe lead. Characteristics cannot exist if strength is zero, and then leads open across direction of maximum principal stretching. |
| Notes: | In: IAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. Vol.2. / International Association for Hydraulic Research. |
| Keywords: | 551.32 -- Glaciology. 551.326 -- Floating ice. 551.326.7 -- Sea ice. 551.326.33 -- Leads. 519.673 -- Modelling. E6 -- Glaciology: floating ice. |
| SPRI record no.: | 125400 |
LDR 01758naa#a2200000#a#4500 001 SPRI-125400 005 20231208184531.0 007 ta 008 231208s1993####abcab##|#####|0||#0#eng#d 035 ## ‡aSPRI-125400 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aPritchard, Robert S. 245 10 ‡aSea ice leads and characteristics /‡cRobert S. Pritchard. 260 ## ‡aEdmonton, Alberta :‡bUniversity of Alberta, Department of Civil Engineering,‡c[1993] 300 ## ‡ap. 1176-1187 :‡bdiags., map. 500 ## ‡aIn: IAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. Vol.2. / International Association for Hydraulic Research. 520 3# ‡aPlastic sea-ice model is examined to determine relationships between velocity and stress and observed lead patterns. Disparate and apparently conflicting observations are brought into unified theory by assuming that velocity characteristic directions align with leads, but only if external forcing and boundary conditions induce velocity discontinuity along characteristic direction. Existence of velocity characteristic is necessary, but not sufficient, for model to describe lead. Characteristics cannot exist if strength is zero, and then leads open across direction of maximum principal stretching. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.326 -- Floating ice.‡2udc 650 07 ‡a551.326.7 -- Sea ice.‡2udc 650 07 ‡a551.326.33 -- Leads.‡2udc 650 07 ‡a519.673 -- Modelling.‡2udc 650 07 ‡aE6 -- Glaciology: floating ice.‡2local 773 0# ‡7c2am ‡aInternational Association for Hydraulic Research. ‡tIAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. ‡dEdmonton, Alberta : University of Alberta, Department of Civil Engineering, [1993] ‡gVol.2. ‡wSPRI-125102 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20231208