Geochronology ; Glacier ; Glacier advance ; Moraine ; Palaeoclimatology ; Permafrost ; Rock glacier ; United States of America ; Wyoming
At Galena Creek, the ice/debris system has alternated between rock glacier and debris-covered glacier modes due to changes in the size of the accumulation area. These results have important implications for paleoclimatic studies of the ice
This paper reports the 1989 re-mapping of Lemon Creek Glacier, and, in conjunction with 1948 and 1957 maps of the glacier, calculation of 9-year and 32-year changes of glacier mass and terminal position. As in the earlier maps, the new map
is at a scale of 1:10,000 with a 5-m contour interval for the glacier surface. Changes between 1957 and 1989 were determined by use of the geodetic method for determining mass balance.
The aim of this article is to review the characteristics and causes of temporal variations in the horizontal and vertical motion of glaciers at less than annual time intervals. These variations have been identified from measurements made both
A small cirque glacier is present in a north-east facing cirque on the mountain of Šljeme in the Durmitor massif. Sediment ridges in front of this glacier are interpreted as moraines can be attributed to recent glacier activity over the past 130
Mountain glaciers in Scandinavia are currently advancing while most of the monitored mountain glaciers of the world are retreating. The AA. examine how the mass balance of glaciers in Scandinavia are correlated with atmospheric variability
The status of research on glaciers and global glacier recession : a review
Bibliographie ; Bilan de masse ; Calotte glaciaire ; Changement global ; Glacier ; Montagne ; Recul duglacier ; Réchauffement climatique ; Technique de recherche ; Télédétection
Bibliography ; Climatic warming ; Glacier ; Glacier mass balance ; Glacier retreat ; Global change ; Ice sheet ; Mountain ; Remote sensing ; Research technique
This review outlines the measurements that are available, new techniques that incorporate remotely sensed data, and major findings around the world. The focus is on changes in glacier area, rather than estimates of mass balance and volume changes
that address the role of glacier melt in global sea-level rise. The glacier observations needed for global climate monitoring are also outlined.
Discussion de la mise en évidence du pergélisol dans tous les glaciers rocheux du versant NE du Viso, Italie, par une vingtaine de sondages électriques. Etude des relations qui ont pu exister entre glacier et glacier rocheux depuis la fin de la
Etude des vitesses d'écoulement d'un glacier rocheux du nord de l'Islande : moins de 2 m en 8 ans (1977-1985), ce qui prouve que le glacier n'est plus alimenté à partir de l'amont. Ancien glacier progressivement recouvert par les débris issus du
Quatre phases différentes d'activité glaciaire sont enregistrées sur Smolikas, le plus haut sommet de la chaîne du Pindus, Grèce : une phase supplémentaire par rapport aux montagnes avoisinantes. Discussion des résultats des études
This paper examines the very recent rapid changes, surges, and presents a summary of Bering Glacier's activity during the Holocene. A perspective on the Holocene history of the Bering Glacier is presented as a backdrop for understanding
Variations of italian glaciers between 1980 and 1999 inferred by the data supplied by the Italian Glaciological Committee
Années 1980 ; Années 1990 ; Fluctuation duglacier ; Glacier ; Italie ; Mesure de terrain ; Recul duglacier
Glacier ; Glacier fluctuation ; Glacier retreat ; Ground survey ; Italy ; Years 1980-89 ; Years 1990-99
The study synthesises the analysis of those data relevant to the variation registred in the Italian glaciers during glaciological surveys carried out by the Italian Glaciological Committee between 1980 and 1999. The last twenty years of the 20th
century were characterized by a phase of general retreat of the glaciers, that followed an advancement phase that took place in the 70s and in the early 80s. The data matrix, which is largely incomplete, includes 335 glaciers. - (NF)
Variations that took place at the terminus of some Karakorum glaciers (particularly the Baltoro Glacier and the Liligo Glacier) during the 20th century have been reconstructed using several methodologies. The two glaciers studied have shown
different behaviour at the termini, at least regarding the rate of variations. The Baltoro is one of the longest glaciers on the Earth : though characterized by phases of expansion (1913-1929, 1954-1987, 1990-1997) and of contraction (1929-1954, 1987-1990
), the position of the terminus has moved over time with reduced variations compared to the dimensions of the overall glacier. The Liligo is a small and transversal glacier, already flowing into the Baltoro glacier, and it is characterised by phases of great
The fluctuations of Italian glaciers during the last century : a contribution to knowledge about alpine glacier changes
Alpes ; Base de données ; Fluctuation duglacier ; Glacier ; Italie ; Lombardia ; Montagne ; Recul duglacier ; Siècle 20
Alps (The) ; Data base ; Glacier ; Glacier fluctuation ; Glacier retreat ; Italy ; Lombardia ; Mountain ; Twentieth Century
This paper describes the recent evolution of Italian glaciers through ananalysis of all available terminus fluctuation data that the AA. have entered in a glaciers database (GLAD), containing 883 records collected on glaciers from 1908 to 2002
. Furthermore, a representative subset of data (249 glaciers located in Lombardy) was analysed regarding surface area changes. The glaciers were sorted by size classes according to length. The data showed that during the 20th century Italian Alpine glaciers
In this paper, the AA. use geographic information system techniques to merge maps with satellite data to study glacier-terminus changes and vegetation regrowth during deglaciation in and near Glacier Bay, Alaska.
The purpose of this paper is to report on glaciological investigations carried out at a single glacier in this region, the Rae Glacier. In 1990 and 1991 field research was completed to describe the physical glaciology of Rae Glacier
and to characterize historical glaciological trends at the site. The glacier has a lag time of 5 to 10 years, which confirms that it is sensitive to climatic fluctuations and responds to changes in mass balance within a very short time. This observation is supported
Alps (The) ; Climatic change ; Geomorphology ; Glacier ; Glacier retreat ; Glaciology ; Montenegro ; Twentieth Century
The Debeli Namet glacier is one of two recent glaciers located in the south western Balkans, (Durmitor Mountain). The glacier is reducing at a rate slower than that of other southern European glaciers. It did not significantly fluctuate in size
in response to temperature increases that occurred at the end of the 20th and at the beginning of the 21st centuries. The A. presents partially revised data accompanied by results related to the glacier’s recent behaviour, its surroundings and climate. - (IKR)
The intent of this work is to : 1) present surface velocities on 15 rock glaciers averaged over 12 years (1983-1995) in the Selwyn Mountains; 2) calculate long-term velocities using rock glacier length and lichen age; 3) compare the velocities