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Letteratura scientifica selezionata sul tema "Fox Glacier"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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Articoli di riviste sul tema "Fox Glacier"

Gjermundsen, E. F., R. Mathieu, A. Kääb, T. Chinn, B. Fitzharris e J. O. Hagen. "Assessment of multispectral glacier mapping methods and derivation of glacier area changes, 1978–2002, in the central Southern Alps, New Zealand, from ASTER satellite data, field survey and existing inventory data". Journal of Glaciology 57, n. 204 (2011): 667–83. http://dx.doi.org/10.3189/002214311797409749.

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AbstractWe have measured the glacier area changes in the central Southern Alps, New Zealand, between 1978 and 2002 and have compiled the 2002 glacier outlines using an image scene from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Three automated classification methods were tested: (1) band ratio, (2) normalized-difference snow index and (3) supervised classification. The results were compared with the glacier outlines photo-interpreted from the ASTER data, and were further validated using GPS-aided field mapping of selected test glaciers. The ASTER 3/4 band ratio provided the best results. However, all the classification methods failed to extract extensive debris-covered parts of the glaciers. Therefore, the photo-interpreted 2002 outlines were used when comparing with the existing 1978 glacier inventory derived from aerial photographs. Our results show a ∼17% reduction of glacier area, mainly driven by the retreat of the large valley glaciers. Despite the large climatic gradient from west to east, glaciers on both sides of the Main Divide lost similar percentages of area, except Franz Josef and Fox Glaciers which advanced. Smaller glaciers were found to have changed very little in the study period.

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Appleby, John R., Martin S. Brook, Simon S. Vale e Amanda M. Macdonald‐creevey. "Structural glaciology of a temperate maritime glacier: lower fox glacier, new zealand". Geografiska Annaler: Series A, Physical Geography 92, n. 4 (dicembre 2010): 451–67. http://dx.doi.org/10.1111/j.1468-0459.2010.00407.x.

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Herman, Frédéric, Brian Anderson e Sébastien Leprince. "Mountain glacier velocity variation during a retreat/advance cycle quantified using sub-pixel analysis of ASTER images". Journal of Glaciology 57, n. 202 (2011): 197–207. http://dx.doi.org/10.3189/002214311796405942.

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AbstractCoverage of ice velocities in the central part of the Southern Alps, New Zealand, is obtained from feature tracking using repeat optical imagery in 2002 and 2006. Precise orthorectification, co-registration and correlation is carried out using the freely available software COSI-Corr. This analysis, combined with short times between image acquisitions, has enabled velocities to be captured even in the accumulation areas, where velocities are lowest and surface features ephemeral. The results indicate large velocities for mountain glaciers (i.e. up to ∼5 m d−1) as well as dynamic changes in some glaciers that have occurred between 2002 and 2006. For the steep and more responsive Fox and Franz Josef Glaciers the speed increased at the glacier snout during the advance period, while the low-angled and debris-covered Tasman Glacier showed no measurable velocity change. Velocity increases on the steeper glaciers are the result of an observed thickening and steepening of the glacier tongues as they moved from a retreat phase in 2002 to an advance phase in 2006. This contrasting behaviour is consistent with historic terminus position changes. The steeper glaciers have undergone several advance/retreat cycles during the observation period (1894 to present), while the low-angled glacier showed little terminus response until retreat resulting from the accelerating growth of a proglacial lake commenced in 1983.

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Appleby, John R., Martin S. Brook, Travis W. Horton, Ian C. Fuller, Katherine A. Holt e Duncan J. Quincey. "Stable isotope (δD–δ18O) relationships of ice facies and glaciological structures within the mid-latitude maritime Fox Glacier, New Zealand". Annals of Glaciology 58, n. 75pt2 (luglio 2017): 155–65. http://dx.doi.org/10.1017/aog.2017.11.

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ABSTRACT Relationships between stable isotopes (δD–δ18O), ice facies and glacier structures have hitherto gone untested in the mid-latitude maritime glaciers of the Southern Hemisphere. Here, we present δD–δ18O values as part of a broader study of the structural glaciology of Fox Glacier, New Zealand. We analyzed 94 samples of δD–δ18O from a range of ice facies to investigate whether isotopes have potential for structural glaciological studies of a rapidly deforming glacier. The δD–δ18O measurements were aided by structural mapping and imagery from terminus time-lapse cameras. The current retreat phase was preceded by an advance of 1 km between 1984 and 2009, with the isotopic sampling and analysis undertaken at the end of that advance (2010/11). Stable isotopes from debris-bearing shear planes near the terminus, interpreted as thrust faults, are isotopically enriched compared with the surrounding ice. When plotted on co-isotopic diagrams (δD–δ18O), ice sampled from the shear planes appears to show a subtle, but distinctive isotopic signal compared with the surrounding clean ice on the lower glacier. Hence, stable isotopes (δD–δ18O) have potential within the structural glaciology field, but larger sample numbers than reported here may be required to establish isotopic contrasts between a broad range of ice facies and glacier structures.

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Purdie, H. L., M. S. Brook e I. C. Fuller. "Seasonal Variation in Ablation and Surface Velocity on a Temperate Maritime Glacier: Fox Glacier, New Zealand". Arctic, Antarctic, and Alpine Research 40, n. 1 (febbraio 2008): 140–47. http://dx.doi.org/10.1657/1523-0430(06-032)[purdie]2.0.co;2.

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Carrivick, Jonathan L., e E. Lucy Rushmer. "Inter- and Intra-Catchment Variations in Proglacial Geomorphology: An Example From Franz Josef Glacier and Fox Glacier, New Zealand". Arctic, Antarctic, and Alpine Research 41, n. 1 (febbraio 2009): 18–36. http://dx.doi.org/10.1657/1523-0430-41.1.18.

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Grapes, Rodney, e Teruo Watanabe. "Paragenesis of titanite in metagreywackes of the Franz Josef-Fox Glacier area, Southern Alps, New Zealand". European Journal of Mineralogy 4, n. 3 (11 giugno 1992): 547–56. http://dx.doi.org/10.1127/ejm/4/3/0547.

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Brook, Martin S., e Sheryl Paine. "Ablation of ice‐cored moraine in a humid, maritime climate: fox glacier, new zealand". Geografiska Annaler: Series A, Physical Geography 94, n. 3 (settembre 2012): 339–49. http://dx.doi.org/10.1111/j.1468-0459.2011.00442.x.

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Nuth, C., e A. Kääb. "What's in an elevation difference? Accuracy and corrections of satellite elevation data sets for quantification of glacier changes". Cryosphere Discussions 4, n. 4 (13 ottobre 2010): 2013–77. http://dx.doi.org/10.5194/tcd-4-2013-2010.

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Abstract. There is an increasing number of DEMs available worldwide for deriving elevation differences over time, including vertical changes on glaciers. Most of these DEMs are heavily post-processed or merged, so that physical error modelling becomes impossible and statistical error modelling is required instead. We propose a three-step methodological framework for assessing and correcting DEMs to quantify glacier elevation changes: remove DEM shifts, check for elevation-dependent biases, and check for higher-order, sensor-specific biases. An analytic, simple and robust method to co-register elevation data is presented in regions where stable terrain is either plentiful (case study New Zealand) or limited (case study Svalbard). The method is exemplified using the three global elevation data sets available, SRTM, ICESat and the ASTER GDEM, and with automatically generated DEMs from satellite stereo instruments of ASTER and SPOT5-HRS. After three-dimensional co-registration, significant biases related to elevation were found in some of the stereoscopic DEMs. Biases related to the satellite acquisition geometry (along/cross track) were detected at two frequencies in the automatically generated ASTER DEMs. The higher frequency bias seems to be related to satellite \\emph{jitter}, most effective in the back-looking pass of the satellite. The origins of the more significant lower frequency bias is uncertain. ICESat-derived elevations are found to be the most consistent globally available elevation data set available so far. Before performing regional-scale glacier elevation change studies or mosaicking DEMs from multiple individual tiles (e.g. ASTER GDEM), we recommend to co-register all elevation data to ICESat as a global vertical reference system. The proposed methodological framework is exemplified for elevation changes on the Fox, Franz Joseph, Tasman and Murchison glaciers of New Zealand and the glaciers of central Spitsbergen, Svalbard.

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Tesi sul tema "Fox Glacier"

Hamré, Moa. "Förutsättningar för jökellopp vid Fox Glacier, Nya Zeeland". Thesis, Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-71989.

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A great number of tourists visits each day the Fox Glacier in New Zealand and are subjected todangers such as jökulhlaups. This phenomena can occur suddenly and in a destructive way when abuilt up of water suddenly bursts and releases large amounts of water. This is well known to happen atthe near by Franz Josef Glacier which has similar settings to Fox Glacier, but sparse previous researchon the subject indicates different results of whether jökulhlaups are present or not by Fox Glacier. Thisthesis therefore aims to study the conditions for jökulhlaups at the glacier. This is done by remotesensing and field observations of the sandur in the Fox Glacier Valley, qualitative interviews andliterature studies with a comparison with Franz Josef Glacier. The results shows that there has beenjökulhlaups from an ice dammed lateral lake which is also the most likable way for jökulhlaups tohappen again, although there are other potential ways for it to happen due to the large amount of heavyrain that this region gets.

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H, Purdie. "Intra-annual variations in abaltion and surface velocity on the lower Fox Glacier, South Westland, New Zealand". Thesis, University of Canterbury. Geography, 2005. http://hdl.handle.net/10092/10451.

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Hayes, D. G. "An Investigation of visitor behaviour in recreation and tourism settings: a case study of natural hazard management at the Glaciers, Westland National Park, New Zealand". Lincoln University, 2008. http://hdl.handle.net/10182/942.

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Visitor non-compliance with protective recommendations is a major problem faced by recreational managers within natural environments. Although many studies have been conducted on noncompliant visitor behaviour within natural resource areas, few attempts have been made to gain an understanding of the behaviour, or to understand the decision making process. This dissertation seeks to address this gap by exploring salient motivations behind noncompliant behaviour within a natural recreation setting. The study was conducted over the summer of 2007-2008 within the popular tourist attractions of Fox and Franz Josef glaciers, Westland National park, New Zealand. The Department of Conservation has a legal and increasingly a moral obligation to provide a level of service and ensure a high standard of visitor safety within lands it administers. However, despite its efforts, management actions are criticised as being ‘over cautious’, and consequently a large number of visitors choose to ignore hazard warnings communicated by management and cross safety barriers, placing themselves and others at considerable risk. Previous studies at the glaciers have identified a number of causes for visitor non-compliance, including situational factors and the adequacy of current visitor management procedures. Through a quantitative measure, and qualitative interview responses, study findings show that visitor compliance with protective recommendations was strongly influenced by a number of situational factors including the proximity of track end points from the glacier terminus; the visibility of other visitors beyond the roped barriers; modest hazard perceptions of visitors; estimated visitor age; time of day and weather conditions. Based on visitor interview responses, motives of non-compliance were further explored by classifying behaviour according to Gramann and Vander Stoep’s (1987) typologies of normative violations. It is identified, using Ajzen’s (1985; 1991) theory of planned behaviour, that non-compliance with protective recommendations at the glaciers is motivated by, (1) a ‘belief’ that the situation or resource encouraged it; (2), through a release of ‘social pressure’, because everyone else was going over; and (3), a ‘perceived facilitation of the behaviour’, in that there were no obvious consequences to self or others. Implications for management to control noncompliant behaviour are discussed in detail.

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Espiner, Stephen. "The phenomenon of risk and its management in natural resource recreation and tourism settings : a case study of Fox and Franz Josef Glaciers, Westland National Park, New Zealand". Lincoln University, 2001. http://hdl.handle.net/10182/638.

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The significance of risk is growing in many Western societies, a phenomenon linked to increasing individualism, personal choice, and outcome uncertainty in multiple spheres of life. Despite being healthier and more physically protected from harm than any previous society, a serious concern for safety and risk control is emerging as a defining characteristic of modern social life. Within the context of a risk-averse society, this thesis investigates the nature and relevance of risk in natural resource recreation and tourism settings. Millions of people every day visit national parks and other protected areas around the world in which natural hazards inhere. Many visitors fail to recognise these hazards, creating moral, legal, and ethical issues for natural resource managers. People travel to national parks anticipating a degree of adventure, to escape routines, and to witness the grandeur of nature. Ironically, the very qualities that attract people to natural areas may also put them at risk. Managers of natural resource tourism and recreation areas in New Zealand are confronted with a paradox born out of visitor demand for nature experiences, a legal obligation to facilitate free access, and a growing social emphasis on health and safety. In particular, this study assesses the risk perceptions of visitors to the Fox and Franz Josef glaciers, popular tourist attractions on the West Coast of New Zealand's South Island, and explores the risk perceptions and beliefs of resource management agency staff. The study also investigates the issue of risk communication at these two sites, and the degree to which existing hazard messages are successful at encouraging appropriate visitor behaviour. Pictorial hazard warning signs are introduced to the sites and their effectiveness evaluated. The findings show that many visitors (especially international visitors) have relatively poor awareness of natural hazards, and behave in ways which potentially compromise physical safety. It is argued that perceptions and behaviour are a consequence of diverse individual and situational factors including limited knowledge of the sites, beliefs about management, poor comprehension of hazard warning signs, and freedom from the normative constraints of everyday life. In contrast to visitors, managers at the glacier sites consider the risks to be significant, and, potentially, severe. It is argued that managers' perceptions of risk are influenced by several important social and site-specific factors, including their own experiences of hazards at the glaciers, perceived legal and moral obligations, the organisational culture, and impressions of high societal expectation concerning safety. The situation is further complicated by the freedom of access principle in national parks, and increasing tourist demand for nature-based experiences. These factors governed beliefs about the subject of risk. This study identifies several dimensions of risk in nature-based recreation and tourism settings. Visitors are at risk of personal accident or injury at certain tourism attractions. Awareness of hazards is limited, visitor behaviour compromises safety, and existing communication strategies are only partially effective. Risk is also apparent in the agency responsible for management of outdoor recreation areas. Site managers perceive a risk in their failure to prevent visitors from harm, whereas senior managers identify risk as primarily financial, legal, and political. Collectively, these factors demonstrate that the phenomenon of risk is increasingly important in the tourism and recreation context, and has the potential to influence significantly both management and experience of protected natural areas in New Zealand.

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Diaz, Melisa A. "Geochemistry of soils from the Shackleton Glacier region, Antarctica, and implications for glacial history, salt dynamics, and biogeography". The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595542667761355.

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Foster, Lesley A. "Utilisation of remote sensing for the study of debris-covered glaciers : development and testing of techniques on Miage Glacier, Italian Alps". Thesis, University of Dundee, 2010. https://discovery.dundee.ac.uk/en/studentTheses/06d96169-df3b-49f0-b26c-f8f1ccc58e8d.

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An increase in the number of debris-covered glaciers and expansion of debris cover across many glaciers has been documented in many of the world’s major glacierised mountain ranges over the last 100 years. Debris cover has a profound impact on glacier mass balance with thick layers insulating the underlying ice and dramatically reducing ablation, while thin or patchy cover accelerates ablation through albedo reduction. Few debris-covered glaciers have been studied in comparison with ‘clean’ glaciers and their response to climatic change is uncertain. Remote sensing, integrated with field data, offers a powerful but as yet unrealised tool for studying and monitoring changes in debris-covered glaciers. Hence, this thesis focuses on two key aims: i) to test the utility of visible/near infrared satellite sensors, such as TERRA ASTER, for studying debris-covered glaciers; ii) to develop techniques to fully exploit the capability of these satellite sensors to extract useful information, and monitor changes over time. Research was focused on four interrelated studies at the Miage Glacier, in the Italian Alps. First, a new method of extracting debris-thickness patterns from ASTER thermal-band imagery was developed, based on a physical energy-balance model for a debris surface. The method was found to be more accurate than previous empirical approaches, when compared with field thickness measurements, and has the potential advantage of transferability to other sites. The high spatial variability of 2 m air temperature, which does not conform to a standard lapse rate, presents a difficulty for this approach and was identified as an important area for future research. Secondly, ASTER and Landsat TM data are used to map debris-cover extent and its change over time using several different methods. A number of problems were encountered in mapping debris extent including cloud cover and snow confusion, spatial resolution, and identifying the boundary between continuous and sporadic debris. Analysis of two images in late summer 1990 and 2004 revealed only a small up glacier increase in debris cover has occurred, confirming other work’s conclusions that the debris cover on Miage Glacier increased to its present extent prior to the 1990s. A third area of research used ASTER DEMs to monitor surface elevation changes of the Miage Glacier over time to update previous studies. Surface velocities on the glacier tongue were also calculated between 2004-2005 using feature-tracking of ASTER orthorectified visible band imagery and ASTER DEMs. However, ASTER DEMs were found to be rather poor for both applications due to large elevation errors in topographically rough parts of the glacier, which prevented a full analysis and comparison of results to previous surface elevation and velocity studies. Finally, the lithological units of the debris cover were mapped, based on the spectral differences of different rock types in the debris layer, providing information both on the location and concentration of different rock types on the surface. Therefore, the identification in the variation in emissivity throughout the glacier surface can be identified, which in turn has an impact upon calculated surface temperatures and ablation respectively. Overall, this research presents a significant contribution to understanding the impact of a debris layer on an alpine glacier, which is an area of key interest and current focus of many present glaciological studies. Since future glacial monitoring will increasingly have to consider supraglacial debris cover as a common occurrence, due to climate warming impacts of glacial retreat and permafrost melting. This contribution is achieved through the successful application of methods which utilise ASTER data to estimate debris thickness and debris extent, and the lithological mapping of debris cover. Therefore, the potential for incorporating these remote sensing techniques for debris-covered glaciers into current global glacier monitoring programs has been highlighted. However the utility of ASTER derived DEMs for surface elevation change analysis and surface velocity estimations in a study site of steep and varied terrain has been identified as questionable, due to issues of ASTER DEM accuracy in these regions.

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Sagredo, Esteban A. "Glacier sensitivity along the Andes: implication for paleoclimatic reconstructions of the Little Ice Age". University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342103681.

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Fujita, Koji, e 耕史藤田. "Effect of dust event timing on glacier runoff: sensitivity analysis for a Tibetan glacier". Wiley, 2007. http://hdl.handle.net/2237/11362.

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La, Frenierre Jeff David. "Assessing the Hydrologic Implications of Glacier Recession and the Potential for Water Resources Vulnerability at Volcan Chimborazo, Ecuador". The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1402593347.

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Davis, Andrew D. (Andrew Donaldson). "Multi-parameter estimation in glacier models with adjoint and algorithmic differentiation". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/72868.

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Thesis (S.M.)--Massachusetts Institute of Technology, Computation for Design and Optimization Program, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 75-77).
The cryosphere is comprised of about 33 million km³ of ice, which corresponds to 70 meters of global mean sea level equivalent [30]. Simulating continental ice masses, such as the Antarctic or Greenland Ice Sheets, requires computational models capturing abrupt changes in ice sheet dynamics, which are still poorly understood. Input parameters, such as basal drag and topography, have large effects on the applied stress and flow fields but whose direct observation is very difficult, if not impossible. Computational methods are designed to aid in the development of ice sheet models, ideally identifying the relative importance of each parameter and formulating inverse methods to infer uncertain parameters and thus constrain ice sheet flow. Efficient computation of the tangent linear and adjoint models give researchers easy access to model derivatives. The adjoint and tangent linear models enable efficient global sensitivity computation and parameter optimization on unknown or uncertain ice sheet properties, information used to identify model properties having large effects on sea-level. The adjoint equations are not always easily obtained analytically and often require discretizing additional PDE's. Algorithmic differentiation (AD) decomposes the model into a composite of elementary operations (+, -, *, /, etc ... ) and a source-to-source transformation generates code for the Jacobian and its transpose for each operations. Derivatives computed using the tangent linear and adjoint models, with code generated by AD, are applied to parameter estimation and sensitivity analysis of simple glacier models. AD is applied to two examples, equations describing changes in borehole temperature over time and instantaneous ice velocities. Borehole model predictions and data are compared to infer paleotemperatures, geothermal heat flux, and physical ice properties. Inversion using adjoint methods and AD increases the control space, allowing inference for all uncertain parameters. The sensitivities of ice velocities to basal friction and basal topography are compared. The basal topography has significantly larger sensitivities, suggesting it plays a larger role in flow dynamics and future work should seek to invert for this parameter.
by Andrew D. Davis.
S.M.

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Libri sul tema "Fox Glacier"

Grapes, R. H. X.R.F. analyses of quartzo-feldspathic schists and metacherts, Franz Josef-Fox Glacier area, Southern Alps of New Zealand. [Wellington]: Victoria University of Wellington, 1985.

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Montana. Dept. of Labor and Industry. Office of Research and Analysis. Labor market information for Glacier County. Helena, MT: Office of Research & Analysis, Job Service Division, Montana Dept. of Labor & Industry, 1996.

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Fountain, Andrew G. A strategy for monitoring glaciers. [Washington]: U.S. G.P.O., 1997.

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Waitt, Richard B. Volcanic-hazard zonation for Glacier Peak Volcano, Washington. [Menlo Park, Calif.]: Dept. of the Interior, Geological Survey, 1995.

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Waitt, Richard B. Volcanic-hazard zonation for Glacier Peak Volcano, Washington. [Menlo Park, Calif.]: Dept. of the Interior, Geological Survey, 1995.

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Waitt, Richard B. Volcanic-hazard zonation for Glacier Peak Volcano, Washington. [Menlo Park, Calif.]: Dept. of the Interior, Geological Survey, 1995.

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Waitt, Richard B. Volcanic-hazard zonation for Glacier Peak Volcano, Washington. [Menlo Park, Calif.]: Dept. of the Interior, Geological Survey, 1995.

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Waitt, Richard B. Volcanic-hazard zonation for Glacier Peak Volcano, Washington. [Menlo Park, Calif.]: Dept. of the Interior, Geological Survey, 1995.

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Waitt, Richard B. Volcanic-hazard zonation for Glacier Peak Volcano, Washington. [Menlo Park, Calif.]: Dept. of the Interior, Geological Survey, 1995.

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Waitt, Richard B. Volcanic-hazard zonation for Glacier Peak Volcano, Washington. [Menlo Park, Calif.]: Dept. of the Interior, Geological Survey, 1995.

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Capitoli di libri sul tema "Fox Glacier"

Guo, Huadong, Wenxue Fu e Guang Liu. "Glacier Satellite". In Scientific Satellite and Moon-Based Earth Observation for Global Change, 397–427. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8031-0_13.

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Maharjan, Sudan Bikash, Finu Shrestha, Fayezurahman Azizi, Esmatullah Joya, Birendra Bajracharya, Mohammad Tayib Bromand e Mohammad Murtaza Rahimi. "Monitoring of Glaciers and Glacial Lakes in Afghanistan". In Earth Observation Science and Applications for Risk Reduction and Enhanced Resilience in Hindu Kush Himalaya Region, 211–30. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73569-2_11.

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AbstractDuring the needs assessment in Afghanistan, the General Directorate of Water Resources (GDWR) of the National Water Affairs Regulation Authority (NWARA) (previously Water Resource Department (WRD) of the Ministry of Energy and Water (MEW)) emphasized that the compilation of comprehensive data on the glaciers in the country is a national priority.

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Tirkey, Nity, P. K. Parhi e A. K. Lohani. "Glaciers and Glacial Lake Outburst Flood Risk Modeling For Flood Management". In Wastewater Reuse and Watershed Management, 157–62. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429433986-15.

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Kääb, Andreas, Regula Frauenfelder e Iris Sossna. "Glacier Changes and Permafrost Distribution". In Applied Geoinformatics for Sustainable Integrated Land and Water Resources Management (ILWRM) in the Brahmaputra River basin, 25–30. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-1967-5_6.

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König, Max, Christopher Nuth, Jack Kohler, Geir Moholdt e Rickard Pettersen. "A digital glacier database for svalbard". In Global Land Ice Measurements from Space, 229–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-540-79818-7_10.

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Fowler, A. C. "Glaciers and ice sheets". In The Mathematics of Models for Climatology and Environment, 301–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60603-8_9.

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Martinez, K., A. Riddoch, J. Hart e R. Ong. "A Sensor Network for Glaciers". In Computer Communications and Networks, 125–39. London: Springer London, 2006. http://dx.doi.org/10.1007/978-1-84628-429-8_9.

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Greve, Ralf, e Heinz Blatter. "Constitutive Equations for Polycrystalline Ice". In Dynamics of Ice Sheets and Glaciers, 49–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03415-2_4.

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Olesen, Ole B., e Roger J. Braithwaite. "Field Stations for Glacier-Climate Research, West Greenland". In Glaciology and Quaternary Geology, 207–18. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-015-7823-3_14.

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Bogorodsky, V. V., C. R. Bentley e P. E. Gudmandsen. "Equipment for Radar Sounding of Glaciers". In Radioglaciology, 48–78. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5275-1_4.

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Atti di convegni sul tema "Fox Glacier"

Tart, Rupert G. "Pipeline Geohazards Unique to Northern Climates". In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10085.

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Abstract (sommario):

Pipelines in northern climates can be impacted by geohazards that are unique to cold regions. Some of these include frost heave, thaw settlement, solifluction, icings, glaciers, ice-rich slopes, and others. This paper will discuss most of these geohazards as they have been monitored, mitigated, and managed along the Trans Alaska Pipeline (TAPS) and other pipelines in Alaska and Russia. Early analyses of frost heave and thaw settlement of piles concluded that frost heave and thaw settlement would be controlled by installing passive heat removal devices (heat pipes). In permafrost areas heat pipes have generally worked well. In unfrozen terrain or discontinuous permafrost the heat pipes have not been able to maintain stability. Examples of each of these situations will be discussed. Steep rolling terrain makes up a significant part of the TAPS route. Some of the slopes are in permafrost and others are in thawed ground. For the past 15 years, surveillance and monitoring of some of the slopes along the pipeline route has documented the response of slopes in frozen ground. Warmer (that is near 0 degrees C) ice-rich slopes can creep. An example of this is documented on a slope instrumented with inclinometers and thermistors. Other slope movements related to pore pressure increases caused by active layer containment of unfrozen groundwater flows will be discussed. The impact of solifluction zones on pipeline construction and routing will be addressed as it has been managed along the TAPS. Other near surface slope movements that appear to be similar to solifluction have been observed along the pipeline right-of-way on the workpad. This paper will address an interrelationship of these observed slope behaviors. In doing this the interaction of slope seeps and the freeze front as it forms in fall and then recedes in spring and summer is compared to observations of engineered projects. Icings can be observed in several locations along TAPS. In some cases these can be related to slope movements. In other cases the icings have reached the aboveground and caused maintenance issues. TAPS was designed to avoid future surges of several large glaciers. In most years these glaciers have retreated and have not been a significant issue. A recent large earthquake caused a landslide on the largest glacier near TAPS and resulted in some review of the activity on that glacier. In 2002 a large earthquake centered near TAPS caused liquefaction in some areas, breakage of ice in lakes in some locations, and sand boils very close to the pipe. These observations will be related to the thinly frozen active layer over a deep talik during the earthquake.

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Wong, Kaufui V., e Sarmad Chaudhry. "Climate Change Aggravates the Energy-Water-Food Nexus". In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36502.

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There are regions in the world experiencing the energy-food-water nexus problems. These regions tend to have high population density, economy that depends on agriculture and climates with lower annual rainfall that may have been adversely affected by climate change. A case in point is the river basin of the Indus. The Indus River is a large and important river running through four countries in East Asia and South Asia: China, India, Afghanistan, and Pakistan. The region is highly dependent on water for both food and energy. The interlinkage of these three components is the cause for the energy-water-food nexus. The difficulty in effectively managing the use of these resources is their very interdependence. For instance, water availability and policies may influence food production, which is governed by agricultural policies, which will further affect energy production from both water and biofuel sources, which will in turn require the usage of water. The situation is further complicated when climate change is taken into account. On the surface, an increase in temperatures would be devastating during the dry season for a region that uses up to 70% of the total land for agriculture. There are predictions that crop production in the region would decrease; the Threedegreeswarmer organization estimated that crop production in the region could decrease by up to 30% come 2050. Unfortunately, the suspected effects of climate change are more than just changes in temperature, precipitation, monsoon patterns, and drought frequencies. A huge concern is the accelerating melting of glaciers in the Himalayas. Some models predict that a global increase in temperature of just 1°C can decrease glacial volume by 50%. The loss of meltwaters from the Himalayan glaciers during the dry season will be crippling for the Indus River and Valley. In a region where up to 90% of accessible water is used for agriculture, there will be an increased strain on food supply. This will further deteriorate the current situation in the region, where almost half of the world’s hungry and undernourished people reside. While the use of hydropower to generate electricity is already many times lower than the potential use, future scarcity of water will limit the potential ability of hydropower to supply energy to people who already experience less than 50% access to electricity. In the current work, suggestions have been put forward to save the increased glacier melt for current and future use where necessary, improve electricity generation efficiency, use sea water for Rankine power cycle cooling and combined cycle cooling, and increase use desalination for drinking water. Energy conservation practices should also be practiced. All of these suggestions must be considered to address the rising issues in the energy-water-food nexus.

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Quirk, Brendon J., Jeffrey R. Moore, Benjamin J. Laabs, Mitchell A. Plummer e Jenna Taylor. "WASATCH RANGE, UT GLACIER RECONSTRUCTIONS FOR THE LAST GLACIAL MAXIMUM AND LATEGLACIAL". In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-303263.

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Pieraccini, Massimiliano, Linhsia Noferini, Daniele Mecatti, Giovanni Macaluso, Guido Luzi e Carlo Atzeni. "Digital elevation models by a GBSAR interferometer for monitoring glaciers: the case study of Belvedere Glacier". In IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2008. http://dx.doi.org/10.1109/igarss.2008.4779909.

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Halvorson, Victoria, e Benjamin Laabs. "RECONSTRUCTING MOUNTAIN GLACIER EQUILIBRIUM-LINE ALTITUDES FOR THE LAST GLACIAL MAXIMUM IN THE WESTERN UNITED STATES". In Cordilleran Section-117th Annual Meeting-2021. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021cd-363195.

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Jayawant, R. "Electrical machines fitted with Glacier magnetic bearings". In IEE Colloquium on High Speed Bearings for Electrical Machines. IEE, 1997. http://dx.doi.org/10.1049/ic:19970888.

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Singh, Gulab, V. Kumar, Kishor Mohite, G. Venkatraman e Y. S. Rao. "Glacier facies mapping using multi-temporal Envisat-ASAR data for Gangotri Glacier". In MIPPR 2007: Multispectral Image Processing. SPIE, 2007. http://dx.doi.org/10.1117/12.753445.

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Shean, David, Erin Whorton, Jon Riedel, Anthony Arendt e Andrew G. Fountain. "A HIGH-RESOLUTION DEM RECORD FOR MT. RAINIER AND CONUS GLACIERS: GEODETIC MASS BALANCE, GLACIER DYNAMICS, SNOW DEPTH, AND NATURAL HAZARDS". In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-302758.

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Coblenz, Michael, Whitney Nelson, Jonathan Aldrich, Brad Myers e Joshua Sunshine. "Glacier: Transitive Class Immutability for Java". In 2017 IEEE/ACM 39th International Conference on Software Engineering (ICSE). IEEE, 2017. http://dx.doi.org/10.1109/icse.2017.52.

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Wershow, Harold N., Doug Clark e Mitchell Plummer. "A HOLOCENE GLACIOLACUSTRINE RECORD OF THE LYMAN GLACIER AND IMPLICATIONS FOR GLACIER FLUCTUATIONS IN THE NORTH CASCADES, WA". In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-277539.

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Rapporti di organizzazioni sul tema "Fox Glacier"

Furr, Gabriella, Chase Lamborn, Abigail Sisneros-Kidd, Christopher Monz e Shannon Wesstrom. Backcountry visitor experience and social science indicators for Glacier Bay National Park. National Park Service, agosto 2021. http://dx.doi.org/10.36967/nrr-2287258.

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Finklin, Arnold I. A climatic handbook for Glacier National Park-with data for Waterton Lakes National Park. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, 1986. http://dx.doi.org/10.2737/int-gtr-204.

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Demuth, M. N., e M. Ednie. A glacier condition and thresholding rubric for use in assessing protected area / ecosystem functioning. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2016. http://dx.doi.org/10.4095/297892.

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Adam, S., Th Toutin, A. Pietroniro e M. Brugman. Using Ortho-Rectified SAR Imagery Acquired over Rugged Terrain for Thematic Applications in Glacier Hydrology. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1997. http://dx.doi.org/10.4095/218989.

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Hekkers, Michael. Climatic and Spatial Variations of Mount Rainier's Glaciers for the Last 12,000 Years. Portland State University Library, gennaio 2000. http://dx.doi.org/10.15760/etd.6827.

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Prezzi, Monica, Seth Scheilz, Rodrigo Salgado e Nayyar Zia Siddiki. Development of SPT-Torque Test Correlations for Glacial Till. Purdue University, giugno 2017. http://dx.doi.org/10.5703/1288284315499.

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Veillette, J. J. New evidence for northwestward glacial ice flow, James Bay region, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/202924.

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Ednie, M., e M. N. Demuth. Mass balance results from the Cordillera Glacier-Climate Observing Network, British Columbia, Northwest Territories, and Alberta, for 2015 and 2016 balance years. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2019. http://dx.doi.org/10.4095/314926.

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Smith, I. R., e R. C. Paulen. Testing the efficacy of a field-portable spiral helix sediment concentrator for capturing kimberlite indicator minerals and gold grains from unconsolidated glacial and non-glacial sediments. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2016. http://dx.doi.org/10.4095/299126.

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Anderson, T. W., R. J. Mott e L. D. Delorme. Evidence for a pre-champlain sea Glacial Lake phase in Ottawa Valley, Ontario, and its implications. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/120048.

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