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Glacier fluctuations in the Alps and in the tropical Andes
- Source :
- Comptes Rendus Géoscience, Comptes Rendus Géoscience, Elsevier, 2005, 337 (1-2), pp.97 à 106. ⟨10.1016/j.crte.2004.08.010⟩, Comptes Rendus Géoscience, Elsevier Masson, 2005, 337 (1-2), pp.97 à 106. ⟨10.1016/j.crte.2004.08.010⟩, Comptes Rendus Géoscience, 2005, 337 (1-2), pp.97 à 106. ⟨10.1016/j.crte.2004.08.010⟩
- Publication Year :
- 2005
- Publisher :
- HAL CCSD, 2005.
-
Abstract
- International audience; This paper reports on glacier variations in two mountainous regions of the world, the Alps and the tropical Andes. Available records of snout position and glacier mass balance are compared and interpreted on a climatological basis. In both regions, there is a long-term decreasing trend over the 20th century. The yield of this trend is different from one glacier to the other, depending on geographic and geometric characteristics. Analysing the surface energy balance, net all wave radiation is the main energy flux at the glacier surface. The turbulent fluxes represent an important term with strong positive sensible heat flux in the Alps and strong negative latent heat flux (sublimation) in the Andes. Tropical glaciers are sensitive to inter-annual variations in solid precipitation that affects the albedo, whereas Alpine glaciers are strongly influenced by air temperature changes in the Alps.
- Subjects :
- Glacier ice accumulation
010504 meteorology & atmospheric sciences
0507 social and economic geography
Energy flux
Andes
Sensible heat
Mass balance
Atmospheric sciences
01 natural sciences
Surface energy balance
1900 2000
ALTITUDE
Glacier mass balance
ALBEDO
Latent heat
ETUDE COMPARATIVE
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology
Glacier
TEMPERATURE
FLUX THERMIQUE
0105 earth and related environmental sciences
Hydrology
Global and Planetary Change
geography
geography.geographical_feature_category
05 social sciences
Alps
BILAN DE MASSE
Accumulation zone
Glacier morphology
FLUCTUATION
13. Climate action
FACTEUR CLIMATIQUE
PRECIPITATION
CHANGEMENT CLIMATIQUE
GLACIER
BILAN ENERGETIQUE
General Earth and Planetary Sciences
VARIATION PLURIANNUELLE
050703 geography
Geology
Subjects
Details
- Language :
- English
- ISSN :
- 16310713
- Database :
- OpenAIRE
- Journal :
- Comptes Rendus Géoscience, Comptes Rendus Géoscience, Elsevier, 2005, 337 (1-2), pp.97 à 106. ⟨10.1016/j.crte.2004.08.010⟩, Comptes Rendus Géoscience, Elsevier Masson, 2005, 337 (1-2), pp.97 à 106. ⟨10.1016/j.crte.2004.08.010⟩, Comptes Rendus Géoscience, 2005, 337 (1-2), pp.97 à 106. ⟨10.1016/j.crte.2004.08.010⟩
- Accession number :
- edsair.doi.dedup.....1037715055375323f9c33672908b7a7b