2 edition of Glacier mass balance measurements found in the catalog.
Glacier mass balance measurements
|Statement||by G. ØOstrem and A. Stanley; prepared jointlyby the Canadian Department of Energy, Mines and Resources, Glaciology Subdivision and the Norwegian Water Resources and Electricity Board, Glaciology Section.|
|Contributions||Stanley, Alan., Canada. Department of Energy, Mines and Resources. Glaciology Subdivision., Norges Vassdrags-og Elektrisitetsvesen.|
|The Physical Object|
|Number of Pages||130|
This book provides an updated discussion of snow and glacier hydrology, drawing on the results of recent investigations. It serves as a source of reference at the senior undergraduate or beginning graduate level and stimulates further interest in this important part of the hydrologic cycle. MASS BALANCE OF A GLACIER AND ITS MEASUREMENT 3/5(1). Glacier Mass Balance and Regime Measurements and Analysis, , Version 1 This data set consists of glacier regime parameters observed between and Data include annual mass balances, ablation, accumulation, and equilibrium-line altitude of mountain and subpolar glaciers outside the two major ice sheets.
(or mass-balance year) when glacier mass attains the annual mass minimum (Fig. 1). Also end winter snow density and end summer firn density need to be known. Fig. 1. Stake measurements of seasonal mass balances in a year of positive (left) and a year of negative (right) surface mass balance, with no superimposed ice. The vertical coordinate is. This figure shows the cumulative mass balance of the three U.S. Geological Survey “benchmark” glaciers since measurements began in the s or s. For each glacier, the mass balance is set at zero for the base year of Negative values indicate a .
Iceland Glacier mass balance. Glacier mass balance is measured once or twice annually on numerous stakes on the several ice caps in Iceland by the National Energy Authority. Regular pit and stake mass-balance measurements have been carried out on the northern side of Hofsjökull since and likewise on the Þrándarjökull since Consequently, glacier mass balance regimes vary within short E-W distances and the related glacier fluctuations provide a highly informative tool for studying present and past atmospheric circulation systems. First studies on this matter from the Cordillera Blanca, Perú, show the possibilities of climate-glacier studies in the Andes.
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Glacier mass balance and regime: Data of measurements and analysis (Occasional paper / Institute of Arctic and Alpine Research, University of Colorado) Unknown Binding – January 1, by Mark Dyurgerov (Author) See all formats and editions Hide other formats and editionsAuthor: Mark Dyurgerov.
Glacier Mass-balance Measurements: A Manual for Field and Office Work Gunnar Østrem, Alan Stanley Canadian Department of Energy, Mines and Resources, - Earth science instruments. Get this from a library.
Glacier mass-balance measurements: a manual for field and office work: a guide for personnel with limited backgrounds in glaciology. [Gunnar Østrem; A Stanley; Canada. Department of Energy, Mines and Resources. Glaciology Subdivision.; Norges vassdrags- og elektrisitetsvesen.
Glaciology Section.]. GLACIER MASS BALANCE MEASUREMENTS A MANUAL FOR FIELD WORK by G. Østrem and A. Stanley A guide to field officers and assistants with limited background in Glaciology DEPARTMENT OF MINES AND TECHNICAL SURVEYS Glaciology Section Ottawa, Canada, Relation of Glacier-wide Balance to the Area-Altitude Distribution Mass Balance Variations of Mountain Glaciers Interannual Fluctuations of Balance Cumulative Balance and Delayed Adjustments Regional Variations of Mass Balance Englacial Mass Balance Internal Accumulation Internal Ablation Basal.
The “ideal” glacier for mass balance investigation – benchmark glacier 27 5. The design of a glacier mass balance network (GMN) 29 III. CARRYING OUT MASS BALANCE MEASUREMENTS 34 6.
Ablation measurements 34 Ablation stakes 34 Selecting sites 36 Drilling ablation stakes 38 The reading of ablation stakes 39 conjunction with gulkana glacier, alaska-mass balance, meteorology, and water measurements, USGS SCIENTIFIC INVESTIGATIONS REPORT (PAPERBACK) book.
Bibliogov, United States, initiated mass-balance studies on selected glaciers along an east-west profile from the Rockies to the Coast Mountains.
Canada, and later Norway, felt that glacier field crews and office technicians needed written instructions for their work. Glaciological and geodetic measurements are two methods to determine glacier mass balances. The mass balance of Urumqi Glacier No. 1 has been measured since by.
studies on mass balance, ice flow, and glacier hydrology. As part of the basic monitoring program, yearly measurements are made of mass balance, terminus change, and surface topography. Hourly measurements are made of the weather, and runoff. This is one of 3 sites in the US measured in detail by the US Geological Survey.
Direct measurements of net glacier mass balance for the mass balance year (October 1 to September 30) uses ablation measurements at stakes in the ablation area and accumulation measurements in snow pits in the accumulation area (Fig.
Hoinkes, ; Cuffey and Paterson, ). Ablation stakes are set into holes drilled several meters into the ice and the length of the stake extending above the glacier. Mass balance measurements started in on Vernagtferner (extent km 2, – m a.s.l.) and both mass balances of the entire glacier as well as distributed observations for the fixed-date system (1 October–30 September) are available.
This data set presents measurements of glacier mass balance from records collected over the history of mass balance measurement activity.
Until now, these data were spread through many publications, which may explain why glaciological data have not been used as fully as they could be.
Zemp et al.: Reanalysing glacier mass balance measurement series variation is the de viation from the traditional contour line method, as proposed by Østrem and Brugman (), for. The mass balance of a glacier is a measure of the change in mass of the glacier, or part of it, over a period of time.
Mass-balance data help to explain why a particular glacier system may be advancing or retreating and what climate drivers (e.g. decreased snow accumulation; increased surface melt) are responsible for the changes.
Gulkana Glacier, Alaska-Mass balance, meteorology, and water measurements, USGS Scientific Investigations Report Author: Rod S. March. Seasonal Mass Balance Measurements: Documenting glacier mass changes is a critical step in defining the responses of glaciers to regional weather and climate variations.
Seasonal mass balance measurements are conducted twice each year on the benchmark glacier (Sperry) and every years on the secondary glaciers in the network. Get this from a library.
Glacier mass balance and regime: data of measurements and analysis. [Mark Dyurgerov; Mark Meier; Richard L Armstrong; University of Colorado Boulder. Institute of Arctic and Alpine Research.].
Abstract. The paper reviews measurements of glacier mass balance in the period There are data for glaciers but most records are quite short. The available mass-balance data are biased to Western Europe, North America and the former USSR with too few measurements from other parts of the world.
Abstract. This paper describes a new compilation of both direct and geodetic mass-balance measurements, develops a procedure to reduce diverse balance measurements over different time-spans to common time-spans, and presents updated estimates of global average balance of small glaciers based on the enlarged compilation.
Direct field measurements are combined with weather data and imagery analyses to calculate the seasonal and annual mass balance of each glacier. This data release includes seasonal and annual glacier-wide mass balance, and the input point measurements and elevation data used for these calculations.
Files are described in detail within the release.Measurement Systems Glacier mass balance definitions (Mayo and others, ), are adhered to in this report, and the stratigraphic system, which is more field compatible than the fixed date system, is usually used.
The specific terms are defined when used.A degree-day glacier mass-balance model is applied to three glaciers in Iceland, Norway and Greenland for which detailed mass-balance measurements are available over a period of several years.
Model results are in good agreement with measured variations in the mass balance with elevation over the time periods considered for each glacier.