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Record #196266:
The orographic climate factors contributing to the mass balance of small glaciers in North Iceland / Kaisa Halkola.
Title: | The orographic climate factors contributing to the mass balance of small glaciers in North Iceland / Kaisa Halkola. |
Author(s): | Halkola, Kaisa. |
Date: | 2005. |
In: | University of Helsinki. Department of Geophysics. Report Series in Geophysics. (2005.), Vol. 50 (2005) |
Abstract: | Analyzes observations of snow accumulation during winter 2002-03 from four small cirque glaciers (Kambsjökull, Glúfurárjökull, Hálsjökull and Baegisaŕrjökull) in context of previous mass balance estimates, degree-day mass-balance model MBT, and atmospheric model MM5. Particularly examines effect of wind on accumulation. Notes excess of accumulation in MM5 simulation over observations on Kambsjökull. Calculates wind-related mass transfer processes (accumulation/erosion and sublimation) on snow surface, but notes difficulty of estimating wind on high glaciers from lowland weather stations. Attributes wide variation in accumulation gradient with altitude to redistribution by wind. Concludes that glaciers are supported by higher precipitation than previously thought and local wind fields that favour snow accumulation. Includes computer code for models of snow drift and sublimation of drifting particles. |
Notes: | University of Helsinki. Department of Geophysics. Report Series in Geophysics. Vol. 50 :1-81, i-xxxi (2005). Masters dissertation for University of Helsinki. |
Keywords: | 551.32 -- Glaciology. 551.324.22 -- Glaciers: Kambsjökull. 551.324.22 -- Glaciers: Glúfurárjökull. 551.324.22 -- Glaciers: Hálsjökull. 551.324.22 -- Glaciers: Baegisaŕrjökull. 551.324.4 -- Land ice, mass and energy balance. 551.324.431 -- Land ice, accumulation. 551.324.433 -- Land ice, ablation and calving. 551.578.4 -- Ice needles, sleet, falling snow and graupel. 551.556 -- Wind, effects of. 551.524 -- Air temperature. 551.513 -- Atmosphere, general circulation. 536.422.1 -- Ice, sublimation. 551.324.414 -- Land ice, radiation to and from. 519.673 -- Modelling. 519.68 -- Computing. 043(B) -- Theses: M.Phil. E5 -- Glaciology: land ice. (*35) -- Iceland. |
SPRI record no.: | 196266 |
LDR 02665nta#a2200000#a#4500 001 SPRI-196266 005 20240328121345.0 007 ta 008 240328s2005####xx#ab#|##|###|0||#0|eng#d 035 ## ‡aSPRI-196266 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aHalkola, Kaisa. 245 14 ‡aThe orographic climate factors contributing to the mass balance of small glaciers in North Iceland /‡cKaisa Halkola. 260 ## ‡a[S.l.] :‡b[s.n.],‡c2005. 300 ## ‡ap. 1-81, i-xxxi :‡bill., diags., tables, maps. 500 ## ‡aUniversity of Helsinki. Department of Geophysics. Report Series in Geophysics. Vol. 50 :1-81, i-xxxi (2005). 500 ## ‡aMasters dissertation for University of Helsinki. 520 3# ‡aAnalyzes observations of snow accumulation during winter 2002-03 from four small cirque glaciers (Kambsjökull, Glúfurárjökull, Hálsjökull and Baegisaŕrjökull) in context of previous mass balance estimates, degree-day mass-balance model MBT, and atmospheric model MM5. Particularly examines effect of wind on accumulation. Notes excess of accumulation in MM5 simulation over observations on Kambsjökull. Calculates wind-related mass transfer processes (accumulation/erosion and sublimation) on snow surface, but notes difficulty of estimating wind on high glaciers from lowland weather stations. Attributes wide variation in accumulation gradient with altitude to redistribution by wind. Concludes that glaciers are supported by higher precipitation than previously thought and local wind fields that favour snow accumulation. Includes computer code for models of snow drift and sublimation of drifting particles. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.324.22 -- Glaciers: Kambsjökull.‡2udc 650 07 ‡a551.324.22 -- Glaciers: Glúfurárjökull.‡2udc 650 07 ‡a551.324.22 -- Glaciers: Hálsjökull.‡2udc 650 07 ‡a551.324.22 -- Glaciers: Baegisaŕrjökull.‡2udc 650 07 ‡a551.324.4 -- Land ice, mass and energy balance.‡2udc 650 07 ‡a551.324.431 -- Land ice, accumulation.‡2udc 650 07 ‡a551.324.433 -- Land ice, ablation and calving.‡2udc 650 07 ‡a551.578.4 -- Ice needles, sleet, falling snow and graupel.‡2udc 650 07 ‡a551.556 -- Wind, effects of.‡2udc 650 07 ‡a551.524 -- Air temperature.‡2udc 650 07 ‡a551.513 -- Atmosphere, general circulation.‡2udc 650 07 ‡a536.422.1 -- Ice, sublimation.‡2udc 650 07 ‡a551.324.414 -- Land ice, radiation to and from.‡2udc 650 07 ‡a519.673 -- Modelling.‡2udc 650 07 ‡a519.68 -- Computing.‡2udc 650 07 ‡a043(B) -- Theses: M.Phil.‡2udc 650 07 ‡aE5 -- Glaciology: land ice.‡2local 651 #7 ‡a(*35) -- Iceland.‡2udc 773 0# ‡7nnas ‡tUniversity of Helsinki. Department of Geophysics. Report Series in Geophysics. ‡gVol. 50 (2005) ‡wSPRI-161098 916 ## ‡a2011/08/04 -- RF 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240328 ‡bRF