The 11th International Circumpolar Remote Sensing Symposium (ICRSS) was held at the Scott Polar Research Institute in Cambridge from 20 to 24 September 2010. The ICRSS series began in Yellowknife in 1990 and has been held biennially since then. The 2010 meeting was the sixth time it had been held in Europe and the second time in the UK, but the first time in Cambridge. 35 people attended the meeting, from 11 countries, and over 20 oral presentations were made in addition to a well-attended poster session. The majority of the oral presentations have been developed into papers and appear in this issue of Polar Record, having been subjected to the normal peer review and editorial process, and they give a fair idea of the range of topics covered at this lively meeting. Sessions at the symposium were organised around the themes of cross-platform observations, ice and snow, topography, vegetation and observations of animals. The last theme produced three fascinating presentations on the monitoring of penguins, seals and fish from spaceborne and airborne platforms. The papers in this issue address two broad areas: terrestrial ice and snow, and high-latitude vegetation (sea ice, and polar zoology, were also represented at the meeting). All of them deal to a greater or lesser extent with technological innovation in assessing, mapping and monitoring these aspects of the polar regions, and several of them focus strongly on the development of new methods, or the assessment of newly available datasets. This issue of Polar Record thus provides a limited snapshot of the ‘state of the art’ in remote sensing of polar regions. It is the result of sustained effort by the authors of the papers, and the team of anonymous reviewers. I am glad here to record my gratitude to all of them, and to the helpers at the symposium, particularly Katya Shipigina, Allen Pope and Claire Lampitt.

In the summer of 1938 the Hermann-Göring-Stiftung [Hermann Göring Foundation], located at the Reichsjägerhof Riddagshausen near Braunschweig, dispatched a two man expedition to west Greenland, primarily in order to capture gyrfalcons. Although nowhere stated in the expedition account, the aim appears to have been to acclimatise the birds to a German environment for the purpose of falconry. Five birds were captured and transported to Germany, four juveniles from a nest near Godhavn and an adult bird from near Uummannaq. After a brief sojourn at Riddagshausen the birds were transferred to Goldhöhe (Zlaté návr_í) in the Riesengebirge (Krkono_e) as being a more appropriate environment. The results of the experiment and the fate of the birds are not stated in the expedition account. Secondary aims of the expedition were geological, meteorological and botanical investigations and bird banding.

This publication is one result of the thematic session ‘Contested borders and identities’ organised at the conference entitled Contested identities, contested cultures and contested rights – Change and challenges in the Northern European periphery held on 23–25 September 2009 at the University of Tromsø, Norway. The conference was organised and financed by the university's Citizenship, encounters and place enactment in the north (CEPIN) group, a multi-disciplinary research school that examines globalisation and modernisation processes in the north. The conference gathered researchers from 19 countries representing different fields of social sciences and addressed various issues relating to political, economic, social and cultural processes in the north.

A concise account of exotic terrestrial mammals known to have been introduced in Antarctica and the 19 peri-Antarctic islands is provided. This includes the entire region currently relevant to the Scientific Committee on Antarctic Research. Of the 24 introduced species 10 are extant at one or more locations in 2011. Some species have had a widespread distribution and others are represented by one, or a few, individuals. The majority arrived as deliberate introductions but that of some was adventitious. Details of their dates of introduction, current status, and indications of environmental effects, are tabulated. Current eradication programmes are noted.

The volume variation of a glacier is the actual indicator of long term and short term evolution of the glacier behaviour. In order to assess the volume evolution of the Austre Lovénbreen (79° N) over the last 47 years, we used multiple historical datasets, complemented with our high density GPS tracks acquired in 2007 and 2010. The improved altitude resolution of recent measurement techniques, including phase corrected GPS and LiDAR, reduces the time interval between datasets used for volume subtraction in order to compute the mass balance. We estimate the sub-metre elevation accuracy of most recent measurement techniques to be sufficient to record ice thickness evolutions occurring over a 3 year duration at polar latitudes.

The systematic discrepancy between ablation stake measurements and DEM analysis, widely reported in the literature as well as in the current study, yields new questions concerning the similarity and relationship between these two measurement methods.

The use of Digital Elevation Model (DEM) has been an attractive alternative measurement technique to estimate glacier area and volume evolution over time with respect to the classical in situ measurement techniques based on ablation stakes. With the availability of historical datasets, whether from ground based maps, aerial photography or satellite data acquisition, such a glacier volume estimate strategy allows for the extension of the analysis duration beyond the current research programmes. Furthermore, these methods do provide a continuous spatial coverage defined by its cell size whereas interpolations based on a limited number of stakes display large spatial uncertainties. In this document, we focus on estimating the altitude accuracy of various datasets acquired between 1962 and 2010, using various techniques ranging from topographic maps to dual frequency skidoo-tracked GPS receivers and the classical aerial and satellite photogrammetric techniques.

Over a period of 70 years, the lifestyles and belief systems of indigenous Siberian peoples were transformed by Soviet policy, based on the idea of assimilation and homogenisation of the peoples in its territory, in compliance with the idea of a ‘people's friendship’. The fall of the Soviet Union has given people the opportunity to rebuild their identity, as well as to provide a means of cultural revival for each ethnic community. The case study of the Republic of Sakha (Yakutia) in northern Siberia shows a new relationship, already started during perestroika and developing between the Russian Federation and its peoples. This relationship favours the development of each people's culture within the broader context of their integration into Russian society. The issue of the instrumentalisation of indigenous peoples’ cultural and religious heritage is part of a broader picture of a global affirmation of peoples’ indigenousness. The identification of ethnic Sakha (Yakuts) with other northern peoples is a means of entering the international political arena, pushing far away the geopolitical and cultural boundaries imposed by the Russian Federation and highlighting the idea of a circumpolar civilisation.

This paper refers to some aspects of the theoretical anthropological debate on the perception of time and I shall argue, following Ingold (2000) that amongst the Sámi people time is understood as an unfolding of interrelated tasks, rather than as a linear succession of standardised and arbitrary units. I also argue that the Sámi perception of time is not opposed to the western perception, but rather entails a different approach to the significance of clock time. The results of my fieldwork, conducted among the Sámi people in Finnish Lapland, lend support to the idea that the basis for a people's shared understanding and subjective experience of time lies in the interaction of skilful agents in carrying out diverse but interrelated tasks. It is not sufficient to live in a place, to belong to a particular ethnic group or to be engaged in the same subsistence activity to perceive time in a certain fashion. No matter how much we change the combination of actors, the perception of time is generated in each case through situated activity within the landscape.

Due to poor weather conditions including common heavy cloud cover at polar latitudes, daily satellite imaging is not always accessible. Nevertheless, fast events including heavy rainfall inducing floods appear as significant in the ice and snow budget while being ignored by satellite based studies since the slower sampling rate is unable to observe such short phenomena. We complement satellite imagery with a set of ground based autonomous automated high resolution digital cameras. The recorded oblique views, acquired at a rate of 3 images per day, are processed for comparison with the spaceborne imagery. Delaunay triangulation based mapping using a dense set of reference points provides the means for an accurate projection by applying a rubber sheeting algorithm. The measurement strategy of identifying binary information of ice and snow cover is illustrated through the example of a particular flood event. We observe a snow cover evolution from 100% to 44.5% and back to 100% over a period of 2 weeks.

Subsequent to this paper (Headland 2011) being submitted for publication, programmes to eradicate exotic mammals on Macquarie Island and South Georgia have made substantial progress.

During the last decades the Arctic has become more central on the world stage. However, despite increased interest how much do people really know about ‘the north’ and the ‘northern people’? The aim of this article is to chronicle a research project by students, who saw themselves as northerners, that used video to capture northerners’ definitions of the north, as well as asking the community about what they wanted newcomers and southern Canada to know about the north. The group also embarked on a new discipline of northerners studying ‘the south’. 43 students interviewed 95 people in the Beaufort Delta, Northwest Territories and 25 people in Edmonton, Alberta. The student researchers’ responses and that of their interviewees are some of the most direct messages on how northerners view their identity and that of their fellow southern Canadians. This project created a video tool to share, educate, and commence a dialogue between people about the north straight from the source.

Antarctica is a rugged, austere, and yet stunningly beautiful continent with charismatic fauna including several species of penguins, whales, and seals. Mass media, writings from the early explorers, and modern film all describe firsthand experiences as delightful, beautiful, challenging, humbling, and even awe-inspiring. This dramatic allure of Antarctica now fuels one of the fastest growing tourism markets in the world with over 30,000 visitors annually traveling to the continent. Despite the fact that Antarctic tourism has occurred for over 30 years, little research has investigated the psychological and affective influence of these immersive tourism experiences in the Antarctic environment. This study explored visitors' affective judgments regarding their Antarctic tourism experience. An onsite post experience survey was administered to Antarctic tourists to investigate their satisfaction with a range of tour attributes. In addition, the researchers used the open-ended question, “How did this Antarctic experience affect you?” to explore tourists’ affective response to their interaction with the Antarctic tourism environment. These open ended responses were coded using a priori themes generated from Kellert's environmental values typology. Additionally, each response was analysed for the presence of an awe experience. Further analysis revealed that tourists described five sub-dimensions of an ‘awe’ experience (nature-human relationship, spiritual connection, transformative experience, goal clarification, and sense of feeling humbled), with many individuals experiencing multiple dimensions of awe. Consequently, this analysis reveals that the impact of an Antarctic tour experience is powerful, rich, and extremely complex.

Differential synthetic aperture radar interferometry (DInSAR) exploits the coherence between the phases of two or more satellite synthetic aperture radar (SAR) scenes taken from the same orbit to separate the phase contributions from topography and movement by subtracting either phase. Hence pure terrain displacement can be derived without residual height information in it, but only the component of movement in line-of-sight direction is represented in a differential interferogram. Comfortlessbreen, a recently surging glacier, flows predominantly in this direction with respect to the European Remote Sensing satellites ERS-1 and ERS-2. Four C-band SAR scenes from spring 1996 were selected because of the high coherence between the respective pairs of the 1-day repeat-pass tandem mission of the ERS sensors. 2-pass DInSAR is performed in combination with a SPOT5 (Satéllite pour l'Observation de la Terre 5) SPIRIT (SPOT5 stereoscopic survey of Polar Ice: Reference Images and Topography) digital elevation model (DEM) from 2007. The different processing steps and intermediate image products, including unwrapping and generation of displacement maps, are detailed in order to convey the DInSAR processing chain to the beginner in the field of interferometry. Maximum horizontal displacements of 18 to 20 cm d−1 in ground range direction can be detected at the glacier terminus, while a few centimetres per day characterised most of the middle and upper portions of Comfortlessbreen in spring 1996.

On the Belgica expedition (1897–1899), Dr F.A. Cook described a disease that he called ‘polar anaemia’ and on this expedition it affected most of the expedition members and caused one death. The symptoms were shortness of breath, abnormalities of the pulse and oedema (swelling of the legs) and the disease was clearly cardiac failure. During the heroic age of Antarctic exploration a similar disease affected at least eight other expeditions causing five other deaths. This disease was very similar (and probably identical) to a disease affecting (mostly) Scandinavian seamen and called ‘ship beri-beri’. Both diseases were almost certainly what is now called wet beri-beri due to thiamine (vitamin B1) deficiency though most sufferers were probably also vitamin C deficient and some may have had both beri-beri and scurvy. It may have been exacerbated by invalid diets. This paper describes the disease and how it was considered and treated at the time.

This paper addresses two processes of social and cultural mobilisation. The first example is a regional movement, as manifested in social and cultural expressions of a north Norwegian identity that was particularly marked in the 1970s and early 80s. The other is the Saami movement, coming out strongly at about the same time, and being part of a global process of indigenous mobilisation. It is argued that although they are similar in the way they articulate a sense of identity and belonging in contrast to an overarching and encompassing state, they are different in their stated objectives, in their relation to the state and the type of achievements gained. The north Norwegian regional movement strived for inclusion into a wider national cultural tradition, and integration has been achieved by broadening the definition of what is considered Norwegian culture. The objective of the Saami movement was the opposite: to gain recognition as a people with a distinct culture, different from but equal in value with the Norwegian culture. The article is introduced by a theoretical discussion of the issues involved, framing the analysis of communicative strategies.

Very high precision satellite altimeter measurements from the Geoscience Laser Altimeter System onboard NASA's Ice, Cloud and Land Elevation Satellite (ICESat) have allowed a method of feature tracking to be developed for floating ice which relies on recording the movement of large surface undulations. This method is applied to a section of the Ross Ice Shelf downstream of the grounding line of the Beardmore Glacier, Antarctica. The altimetry method has benefits over established optical and interferometric remote sensing techniques due to high pointing accuracy for geo-location, ability to deal with tidal fluctuations and to measure velocity where visible surface features are absent. Initial processing of a single sequence of ICESat tracks gives encouraging results for unidirectional ice flow with correlations between surface profiles in consecutive years exceeding 90% and producing high internal consistency in velocity between independent tracks. Velocities of 331 ± 28 m a−1 near to the grounding line are also consistent with available ground measurements for the area.