Expertise

Our Background

Our academic experience in geography and surveying as well as our practical experience in industry and government informs our applied research.

We use a variety of tools to analyse and communicate our research. These broadly fall into the categories of geospatial science - including remote sensing, photogrammetry, GIS, geovisualisation, and spatial statistics - and climatology with a focus on seasonal snow and glaciers. Our field work underlies and supports the modelling we do to better understand mountain environments and how they change through time.

We work closely with a range of partners to ensure maximum societal benefit from our work.

Brewster Glacier

Our Expertise

Field measurements

Field measurements

We conduct fieldwork in alpine environments, including designing and maintaining weather stations, the use of specialised equipment (e.g., fixed-wing and multi-rotor drones and precise GNSS), and in-situ and remote glacial mass-balance measurements.

Meteorology

Meteorology

We observe and model climatic variables, perform climatic downscaling and reanalysis, and link changes in the cryosphere to atmospheric processes. Our expertise in climatology has a particular focus on the cryosphere as well near-surface processes in the atmosphere.

Remote sensing

Remote sensing

We collect and analyse a variety of remotely sensed data, including imagery from UAV (drone), aerial and satellite platforms, as well terrestrial and airborne LiDAR. We use these data to map changes to New Zealand’s mountains to, for example, track seasonal snow at multiple scales.

Photogrammetry

Photogrammetry

We build on foundations in photogrammetry to develop precise, accurate terrain models leveraging cutting-edge tools and techniques. This allows us to measure snow depth (even from space) for improving hydrologic models, and, to quantify 3D topographic changes across landscapes.

Spatial analysis

Spatial analysis

We use a wide range of spatial analysis techniques to improve our understanding of mountain environments. Analyses include estimating glacial mass-balance losses, understanding controls on snow distribution and identifying landscape-scale slope instabilities.

Modelling

Modelling

We model changes to mountain environments using frameworks from a variety of fields to, for example, integrate snow and hydrologic models for improved forecasting for water resources and simulating snow avalanches to assess risk to people and infrastructure.

Visualisation and communication

Visualisation and communication

We specialise in creating interactive, immersive data visualisations for engaging the public with mountain research. Our 4D animations show changes to mountain systems through time, and our web GIS support public exploration of data.

Collaboration and engagement

Collaboration and engagement

We engage partners on applying research findings. Partners include recreation industry, CRIs, conservation groups, government agencies, and the research community in NZ and across the world. Our collaboration drives research design and supports high-quality research outputs.

Our research outputs



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YearTypePublication
2019JournalNicolas J. Cullen, Peter B. Gibson, Thomas Mölg, Jonathan P. Conway, Pascal Sirguey, Daniel G. Kingston (2019). The influence of weather systems in controlling mass balance in the Southern Alps of New Zealand. Journal of Geophysical Research: Atmospheres.
2019JournalJames Salinger, James Renwick, Erik Behrens, Brett Mullan, Howard J Diamond, Pascal Sirguey, Robert Smith, Mike C T Trought, Lisa V Alexander, Nicolas Cullen, B Blair Fitzharris, Chris Hepburn, Amber Parker, Phil J Sutton (2019). The unprecedented coupled ocean-atmosphere summer heatwave in the New Zealand region 2017/18: drivers, mechanisms and impacts. Environmental Research Letters, 14, pp. 044023.
2019JournalTodd A. N. Redpath, Pascal Sirguey, Nicolas J. Cullen (2019). Charactersing spatio-temporal variability in seasonal snow cover at a regional scale from MODIS data: The Clutha Catchment, New Zealand. Hydrology and Earth System Sciences, 23, pp. 3189–3217.
2019ConferencePascal Sirguey, Tobias Brunk, Nicolas J. Cullen, Aubrey Miller (2019). Mass balance series of Brewster Glacier (New Zealand) 1977-2018 calibrated with complete photogrammetric reanalysis. In Proceedings of the American Geophysical Union (AGU) fall meeting, pp. C21B-04.
2019ConferenceClare Lewis, Pascal Sirguey, Simon Cox (2019). Accuracy of Pléiades photogrammetric products under direct and controlled georeferencing. In Proceedins of GeoComputation 2019, pp. 1–8.
2019ConferencePascal Sirguey (2019). A Bivariate Thin-Plate Adaptive Smoothing Spline (BTPASS) to reduce noise in photogrammetric digital surface models. In Proceedins of GeoComputation 2019, pp. 1–.
2019Technical reportPascal Sirguey, Clare Lewis (2019). Topographic mapping of Franz Josef glacier region with Pléiades satellite imagery. University of Otago. 17-004.002.R1.0.
2018JournalTheo Masson, Marie Dumont, Mauro Mura, Pascal Sirguey, Simon Gascoin, Jean-Pierre Dedieu, Jocelyn Chanussot (2018). An Assessment of Existing Methodologies to Retrieve Snow Cover Fraction from MODIS Data. Remote Sensing, 10(4), pp. 619.
2018JournalRubén Basantes-Serrano, Antoine Rabatel, Christian Vincent, Pascal Sirguey (2018). An optimized method to calculate the geodetic mass balance of mountain glaciers. Journal of Glaciology, 64(248), pp. 917–931.
2018JournalJes\'us Revuelto, Grégoire Lecourt, Matthieu Lafaysse, Isabella Zin, Luc Charrois, Vincent Vionnet, Marie Dumont, Antoine Rabatel, Delphine Six, Thomas Condom, Samuel Morin, Alessandra Viani, Pascal Sirguey (2018). Multi-Criteria Evaluation of Snowpack Simulations in Complex Alpine Terrain Using Satellite and In Situ Observations. Remote Sensing, 10(8), pp. 1171.
2018JournalRedpath, Sirguey, Cullen (2018). Repeat mapping of snow depth across an alpine catchment with RPAS photogrammetry. The Cryosphere, 12, pp. 3477–3497.
2018JournalJulia G. Moloney, Mike J. Hilton, Pascal Sirguey, Tom Simons-Smith (2018). Coastal Dune Surveying Using a Low-Cost Remotely Piloted Aerial System (RPAS). Journal of Coastal Research, 34(5), pp. 1244–1255.
2018JournalLucas Davaze, Antoine Rabatel, Yves Arnaud, Pascal Sirguey, Delphine Six, Anne Letreguilly, Marie Dumont (2018). Monitoring glacier albedo as a proxy to derive summer and annual surface mass balances from optical remote-sensing data. The Cryosphere, 12, pp. 271–286.
2018ConferenceLafaysse, Sirguey, Conway, Cullen, Tuzet, Dumont (2018). Can we use the same snow scheme to simulate alpine snow packs in France and New Zealand?. In EGU General Assembly Conference Abstracts, pp. 19473.
2018ConferenceXiaobin Hua, Ralf Ohlemüller, Pascal Sirguey (2018). Using remote sensing to detect topographic effects on the timing of growth season in alpine grasslands. In Proceedings of InterCarto-InterGIS 24 Interdisciplinary Conference.
2018ConferenceJim Salinger, Blair Fitzharris, Pascal Sirguey, Nicolas Cullen (2018). Southern alps snow and ice losses for summer 2017/18: From remote sensing and modelling. In Proceedings of the NZ Hydrological Society & Meteorological Society of NZ Joint Conference.
2018ConferenceTodd Redpath, Pascal Sirguey, Nicolas Cullen (2018). Characteristics and controls of snow cover variability in the Clutha catchment, revealed by remote sensing. In Proceedings of the NZ Hydrological Society & Meteorological Society of NZ Joint Conference.
2018ConferenceCraig MacDonell, Pascal Sirguey, Todd Redpath (2018). Meeting expectations with remotely piloted aircraft system topographic surveys: A practical example at mapping Quarantine Island/Kamau Taurua. In Proceedings of the GeoCart’2018 and ICA Symposium on Cartography, pp. 131–135.
2018ConferenceSam West, Pascal Sirguey, Kath Dickinson, Peter A. Whigham (2018). High-resolution tussock distribution modelling in the Pisa Range, New Zealand. In Proceedings of the GeoCart’2018 and ICA Symposium on Cartography, pp. 150–154.
2018ConferencePascal Sirguey (2018). Moving on from a 30 year old legacy in mapping the Southern Alps topography. In Proceedings of the GeoCart’2018 and ICA Symposium on Cartography, pp. 35.
2018ConferenceTodd Redpath, Pascal Sirguey, Nicolas J. Cullen (2018). Resolving fine scale spatial variability in snow depth distribution from high resolution remotely piloted aircraft system photogrammetry. In Proceedings of the GeoCart’2018 and ICA Symposium on Cartography, pp. 103–107.
2017JournalStephen M. Dawson, Hamish Bowman, Eva Leunissen, Pascal Sirguey (2017). Inexpensive aerial photogrammetry for studies of whales and large marine animals. Frontiers in Marine Science, 4, pp. 366.
2017JournalRevuelto, Lecourt, Lafaysse, Zin, Charrois, Vionnet, Dumont, Rabatel, Six, Condom, Morin, Viani, Sirguey (2017). Distributed vs. semi-distributed simulations of snowpack dynamics in alpine areas: case study in the upper Arve catchment, French Alps, 1989–2015. The Cryosphere Discussions, pp. 1–55.
2017JournalAntoine Rabatel, Etienne Berthier, Yves Arnaud, Jean-Pierre Dedieu, Marie Dumont, Simon Gascoin, Michel Gay, Kévin Guerreiro, Fatima Karbou, Alexei Kouraev, Ghislain Picard, Frédérique Rémy, Pascal Sirguey, Emmanuel Trouvé, Elena Zakharova (2017). Télédétection satellitaire des surfaces enneigées et englacées. La Météorologie, 97, pp. 78–85.
2017JournalAntoine Rabatel, Pascal Sirguey, Vanessa Drolon, Philippe Maisongrande, Yves Arnaud, Lucas Davaze, Marie Dumont, Etienne Berthier, Jean-Pierre Dedieu (2017). Annual and seasonal retrieval of glacier surface mass balance using optical satellite imagery: a review of existing methods and challenges. Remote Sensing, 9(5), pp. 507.
2017JournalAndreas M. Jobst, Daniel G. Kingston, Nicolas J. Cullen, Pascal Sirguey (2017). Combining thin plate spline interpolation with a lapse rate model to produce daily air temperature estimates in a data sparse alpine catchment. International Journal of Climatology, 37, pp. 214–229.
2017JournalNicolas Cullen, Brian Anderson, Pascal Sirguey, Dorothea Stumm, Andrew Mackintosh, Jonathan P. Conway, Huw J. Horgan, Ruzica Dadic, Sean J. Fitzsimons, Andrew Lorrey (2017). An 11-year record of mass balance of Brewster Glacier, New Zealand, determined using a geostatistical approach. Journal of Glaciology, 63(238), pp. 199–217.
2017JournalP. Bohleber, L. Sold, D. Hardy, M. Schwikowski, P. Klenk, A. Fischer, P. Sirguey, N. J. Cullen, M. Potocki, H. Hoffmann, P. Mayewski (2017). Ground-penetrating radar reveals ice thickness and undisturbed englacial layers at Kilimanjaro's Northern Ice Field. The Cryosphere, 11, pp. 469–482.
2017ConferenceTodd Redpath, Pascal Sirguey, Nicolas J. Cullen, Sean Fitzsimons (2017). High resolution insights into snow distribution provided by drone photogrammetry. In Proceedings of the American Geophysical Union (AGU) fall meeting, pp. C52B-02.
2017ConferenceChristopher Page, Pascal Sirguey, Richard Hemi, Ghyslain Ferré, Elisabeth Simonetto, Christophe Charlet, Damien Houvet (2017). Terrestrial laser scanning for the documentation of heritage tunnels: an error analysis. In Proceedings of the FIG Working Week 2017, pp. 1–19.
2017ConferenceLucas Davaze, Antoine Rabatel, Yves Arnaud, Pascal Sirguey, Delphine Six, Anne Letreguilly, Marie Dumont (2017). Quantification of seasonal to annual mass balances from glacier surface albedo derived from optical satellite images, application on 30 glaciers in the French Alps for the period 2000-2015. In Geophysical Research Abstracts, pp. EGU2017-6645.
2017ConferenceTodd Redpath, Pascal Sirguey, Nicolas J. Cullen, Sean Fitzsimons (2017). High resolution insights into snow distribution provided by drone photogrammetry. In Proceedings of the American Geophysical Union (AGU) fall meeting, pp. C52B-02.
2017Technical reportPascal Sirguey, Simon Cox (2017). Hazard at Murchison Hut, Aoraki/Mount Cook National Park. GNS Science. CR 2017/178 LR.
2016JournalPascal Sirguey, Holly Still, Nicolas J. Cullen, Marie Dumont, Yves Arnaud, Jonathan P. Conway (2016). Reconstructing the mass balance of Brewster Glacier, New Zealand, using MODIS-derived glacier-wide albedo. The Cryosphere, 10, pp. 2465–2484.
2016JournalDaniel G. Kingston, Clare S. Webster, Pascal Sirguey (2016). Atmospheric circulation drivers of lake inflow for the Waitaki River, New Zealand. International Journal of Climatology, 36(3), pp. 1102–1113.
2016JournalJean-Pierre Dedieu, Bradley Z. Carlson, Sylvain Bigot, Pascal Sirguey, Vincent Vionnet, Philippe Choler (2016). On the importance of high-resolution time series of optical imagery for quantifying the effects of snow cover duration on alpine plant habitat. Remote Sensing, 8(6), pp. 481.
2016JournalBorna, Moore, Sirguey (2016). An unsupervised image classification from high spatial resolution satellite images based on vector agents. Submitted to ISPRS Journal of Photogrammetry and Remote Sensing.
2016JournalBorna, Moore, Sirguey (2016). An intelligent geospatial processing unit for image classification based on Geographic Vector Agents (GVAs). Transactions in GIS, 20(3), pp. 368–381.
2016ConferenceChris Page, Pascal Sirguey, Richard Hemi (2016). Achieving accuracy in underground laser scanning: application to the LiDARRAS project. In Proceedings of the GeoCart’2016 and ICA Symposium on Cartography, pp. 47–52.
2016ConferenceTodd Redpath, Pascal Sirguey, Nicolas Cullen, Julien Boeuf, Sean Fitzsimons (2016). Progress towards Mapping Seasonal Snowpack from Very High Resolution Drone Photogrammetry. In Proceedings of the GeoCart’2016 and ICA Symposium on Cartography, pp. 99–104.
2016ConferencePascal Sirguey, Julien Boeuf, Ryan Cambridge, Steven Mills (2016). Evidence of sub-optimal photogrammetric modelling in RPAS-based aerial surveys. In Proceedings of the GeoCart’2016 and ICA Symposium on Cartography, pp. 91–98.
2016ConferenceJason E. Box, Alexander Kokhanovsky, Marie Dumont, Ghislain Picard, Aku Riihelä, Frank Paul, Teruo Aoki, Pascal Sirguey, Don Perovich, Jeff Key, Konrad Steffen (2016). Arctic snow and ice optical properties from ESA Sentinels. In 2016 EUMETSAT Meteorological Satellite Conference.
2016ConferenceClare Boston, Harold Lovell, Stephanie Mills, Nicolas Cullen, Pascal Sirguey (2016). Styles of glaciation on Kilimanjaro, Tanzania, in response to late Quaternary climate change. In Geophysical Research Abstracts, pp. EGU2016-8458.
2015JournalForin-Wiart, Hubert, Sirguey, Poulle (2015). Performance and accuracy of lightweight and low-cost GPS data loggers according to antenna positions, fix intervals, habitats and animal movements. PLoS ONE, 10(6), pp. e0129271–.
2015JournalCox, McSaveney, Spencer, Allen, Ashraf, Hancox, Sirguey, Salichon, Ferris (2015). Rock avalanche on 14 July 2014 from Hillary Ridge, Aoraki/Mount Cook, New Zealand. Landslides, 12, pp. 395–402.
2015JournalBrun, Dumont, Wagnon, Berthier, Azam, Shea, Sirguey, Rabatel, Ramanathan (2015). Seasonal changes in surface albedo of Himalayan glaciers from MODIS data and links with the annual mass balance. The Cryosphere, 9, pp. 341–355.
2015ConferenceStill, Sirguey, Cullen, Dumont (2015). Reconstructing the mass balance record of Brewster glacier using MODIS data. In Proceedings of the SIRG Workshop 2015, pp. 2.
2015ConferenceStephanie C. Mills, Timothy T. Barrows, Mitchell A. Plummer, Ann V. Rowan, Paul J. Valdes, Nick Pepin, Thomas Mölg, Douglas Hardy, Nicolas J. Cullen, Pascal Sirguey (2015). The application of a glacier modelling approach to determine variations in the extent of the Kilimanjaro ice cap and the associated climatic implications. In XIX INQUA Congress.
2015ConferenceBorna, Sirguey, Moore (2015). An intelligent vector agent processing unit for geographic object-based image analysis. In 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 3053–3056.
2015ConferenceBorna, Moore, Sirguey (2015). A vector agent-based unsupervised image classification for high spatial resolution satellite imagery. In Proceedings of the 13th International Conference on GeoComputation, pp. 349–354.
2014JournalBorna, Moore, Sirguey (2014). Towards a vector agent modelling approach for remote sensing image classification. Journal of Spatial Science, 59(2), pp. 283–296.
2014JournalSirguey, Nicolas J. Cullen (2014). A very high resolution DEM of Kilimanjaro via photogrammetry of GeoEye-1 images (KILISoSDEM2012). NZ Surveyor, 303, pp. 19–25.
2014JournalSirguey (2014). The recent survey of Aoraki/Mt Cook. Quarterly Magazine of the Association of Consulting Surveyors (NSW), pp. 6–7.
2014JournalPascal Sirguey (2014). \textitNon tanquam pictor, sed tanquam mathematicus – Not as an artist but as a mathematician, Photogrammetry, Remote sensing, and the surveying discipline. NZ Surveyor, 303, pp. 32–38.
2014JournalPfeffer, A. A. Arendt, A. Bliss, T. Bolch, J. G. Cogley, A. S. Gardner, J.-O. Hagen, R. Hock, G. Kaser, C. Kienholz, E. S. Miles, G. Moholdt, N. Mölg, F. Paul, V. Radic, P. Rastner, B. H. Raup, J. Rich, M. J. Sharp, L. M. Andreassen, S. Bajracharya, N. E. Barrand, M. J. Beedle, E. Berthier, R. Bhambri, I. Brown, D. O. Burgess, E. W. Burgess, F. Cawkwell, T. Chinn, L. Copland, N. J. Cullen, B. Davies, H. De Angelis, A. G. Fountain, H. Frey, B. A. Giffen, N. F. Glasser, S. D. Gurney, W. Hagg, D. K. Hall, U. K. Haritashya, G. Hartmann, S. Herreid, I. Howat, H. Jiskoot, T. E. Khromova, A. Klein, J. Kohler, M. Konig, D. Kriegel, S. Kutuzov, I. Lavrentiev, R. Le Bris, X. Li, W. F. Manley, C. Mayer, B. Menounos, A. Mercer, P. Mool, A. Negrete, G. Nosenko, C. Nuth, A. Osmonov, R. Pettersson, A. Racoviteanu, R. Ranzi, M. A. Sarıkaya, C. Schneider, O. Sigurdsson, P. Sirguey, C. R. Stokes, R. Wheate, G. J. Wolken, L. Z. Wu, F. R. Wyatt (2014). The Randolph Glacier Inventory: a globally complete inventory of glaciers. Journal of Glaciology, 60(221), pp. 537–552.
2014JournalChris Page, Kate Radley, Pascal Sirguey (2014). Caught on camera: an assessment of the Trimble V10 imaging rover. Surveying+Spatial, 80, pp. 20–28.
2014JournalTyler Hager, Pascal Sirguey, Jim Bazsika, David Goodwin (2014). Surveying an icon: the trigonometric survey of Aoraki/Mt Cook. Survey Quarterly, 78, pp. 5–11 (cover).
2014JournalBorna, Moore, Sirguey (2014). Towards a vector agent modelling approach for remote sensing image classification. Journal of Spatial Science, 59(2), pp. 283–296.
2014ConferencePascal Sirguey, Nicolas J. Cullen, Jorge Filipe Dos Santos (2014). The new digital orthometric elevation model of Kilimanjaro. In Proceedings of ResearchLocate’14, pp. 108–117.
2014ConferenceBorna, Moore, Sirguey (2014). A vector agent approach to extract the boundaries of real-world phenomena from satellite images. In Proceedings of ResearchLocate’14, pp. 142–144.
2014ConferenceStill, Sirguey, Cullen, Dumont (2014). Resolving the temporal and spatial variability of glacier surface albedo using MODIS data. In Proceedings of the SIRG Workshop 2014, pp. 31.
2014ConferencePascal Sirguey, Nicolas J. Cullen, Tyler Hager, Sebastian Vivero (2014). The contribution of photogrammetry, GIS, and geovisualisation to the determination of the height of Aoraki/Mt Cook. In Proceedings of the GeoCart’2014 and ICA Symposium on Cartography, pp. 129–133.
2014ConferencePascal Sirguey, Nicolas J. Cullen (2014). A century of photogrammetry on Kilimanjaro. In Proceedings of FIG Congress 2014, pp. 1–12.
2014ConferenceDaniel G. Kingston, Clare S. Webster, Pascal Sirguey (2014). Large-scale climate control on lake inflow in the Waitaki basin, New Zealand. In Proceedings of FRIEND-Water 2014, Hydrology in a Changing World: Environmental and Human Dimensions, pp. 138–144.
2014ConferenceAlexander Geddes, Pascal Sirguey, Nicolas Cullen (2014). A multi-epoch triangulation of stereo ASTER images to resolve the dynamic of surface elevation change of Tasman Glacier. In Proceedings of the GeoCart’2014 and ICA Symposium on Cartography, pp. 9 pp..
2014ConferenceBorna, Sirguey, Moore (2014). Automatic extraction of roof structure from urban aerial images and LiDAR data using geographical vector agent. In Proceedings of the GeoCart’2014 and ICA Symposium on Cartography, pp. 7 pp..
2014Technical reportBlair B. Fitzharris, Pascal Sirguey (2014). Building a platform for snowmelt runoff modelling in the Athabasca River Basin. Climate Management Ltd. 12-001.002.R1.0. Report prepared for Environment Canada under contract number K8F14-13-1000 0.
2013Book chapterPascal Sirguey (2013) in Photogrammetry and remote sensing: \textit'Non tanquam pictor, sed tanquam mathematicus', pp. 135–144, Survey Marks.
2013JournalCraig L. Stevens, Pascal Sirguey, Gregory H. Leonard, Tim G. Haskell (2013). \textitBrief communication: The 2013 Erebus Glacier tongue calving event. The Cryosphere, 7(5), pp. 1333–1337.
2013JournalSirguey, Cullen (2013). KILISoSDEM2012: a very high resolution DEM of Kilimanjaro. Survey Quarterly, 76, pp. 5–7 (cover).
2013JournalRedpath, Sirguey, Fitzsimons, Kääb (2013). Accuracy assessment for mapping glacier flow velocity and detecting flow dynamics from ASTER satellite imagery: Tasman Glacier, New Zealand. Remote Sensing of Environment, 133, pp. 90–101.
2013JournalMary, Dumont, Dedieu, Durand, Sirguey, Milhem, Mestre, Negi, Kokhanovsky, Lafaysse, Morin (2013). Intercomparison of retrieval algorithms for the specific surface area of snow from near-infrared satellite data in mountainous terrain, and comparison with the output of a semi-distributed snowpack model. The Cryosphere, 7(2), pp. 741–761.
2013JournalCullen, Sirguey, Mölg, Kaser, Winkler, Fitzsimons (2013). A century of ice retreat on Kilimanjaro: the mapping reloaded. The Cryosphere, 7(2), pp. 419–431.
2013ConferencePascal J. Sirguey, Nicolas J. Cullen, Thomas Mölg, Georg Kaser (2013). Ice volume assessment of the Northern Ice Field of Kilimanjaro: the photogrammetry strikes back. In Proceedings of the American Geophysical Union (AGU) fall meeting, pp. C42A-05.
2013ConferenceRosie Wood, Pascal Sirguey, Nicolas J. Cullen (2013). Modelling ice retreat on Kilimanjaro Using GIS. In Joint Proceedings of the NZIS conference: Celebrating the Past, Redefining the Future and SIRC NZ 2013 Conference, pp. 117–120.
2013ConferenceSebastián Vivero, Pascal Sirguey, Sean J. Fitzsimons, Delia Strong, Alvaro Soruco (2013). Recent ice wastage on the Tasman Glacier obtained from geodetic elevation changes. In Joint Proceedings of the NZIS conference: Celebrating the Past, Redefining the Future and SIRC NZ 2013 Conference, pp. 113–116.
2013ConferencePascal Sirguey (2013). \textitNon tanquam pictor, sed tanquam mathematicus – Not as an artist but as a mathematician, Photogrammetry, Remote sensing, and the surveying discipline. In Joint Proceedings of the NZIS conference: Celebrating the Past, Redefining the Future and SIRC NZ 2013 Conference, pp. 64–76.
2013ConferenceBob Noonan, Pascal Sirguey, Wolfgang Rack, Wendy Lawson (2013). Snowfall detection in Antarctica using MODIS ground infrared reflectance. In Joint Proceedings of the NZIS conference: Celebrating the Past, Redefining the Future and SIRC NZ 2013 Conference, pp. 121–124.
2013ConferenceNicolas J. Cullen, Jono Conway, Brian Anderson, Andrew Mackintosh, Pascal J. Sirguey, Sean Fitzsimons, Andrew M. Lorrey (2013). Developing an observational benchmark for climate-glacier interactions in the Southern Alps of New Zealand. In Proceedings of the American Geophysical Union (AGU) fall meeting, pp. C42A-06.
2013ConferenceLuc Charrois, Marie Dumont, Pascal Sirguey, Samuel Morin, Matthieu Lafaysse, Fatima Karbou (2013). Comparing different MODIS snow products with distributed simulation of the snowpack in the French Alps. In Proceedings of the International Snow Science Workshop (ISSW), pp. 937–941.
2013ConferenceBorna, Sirguey, Moore (2013). Geographical vector agent modelling for image classification: initial development. In Joint Proceedings of the NZIS conference: Celebrating the Past, Redefining the Future and SIRC NZ 2013 Conference, pp. 99–104.
2012JournalAbraham Growcott, Pascal Sirguey, Stephen Dawson (2012). Development and assessment of a digital stereo photogrammetric system to measure cetaceans at sea. Photogrammetric Engineering and Remote Sensing, 78(3), pp. 237–246.
2012JournalDumont, Gardelle, Sirguey, Guillot, Six, Rabatel, Arnaud (2012). Linking glacier annual mass balance and glacier albedo retrieved from MODIS data. The Cryosphere, 6(6), pp. 1527–1539.
2012ConferenceVivero, Sirguey, Fitzsimons, Soruco (2012). A new digital terrain model for the Tasman Glacier, New Zealand, using digital photogrammetry techniques. In Proceedings of the 8th ICA Mountain Cartography Workshop, pp. 9–14.
2012ConferenceTenzer, Bagherbandi, Sirguey, Novak (2012). Evidence of the ocean floor spreading in gravity data. In Geophysical Research Abstracts, pp. EGU2012-10252.
2012ConferenceDumont, Gardelle, Sirguey, Guillot, Décaux, Rabatel, Six, Arnaud (2012). Linking glacier annual mass balance and glacier albedo retrieved from MODIS data. In Proceedings of the American Geophysical Union (AGU) fall meeting, pp. C21C-0625.
2012ConferenceDumont, Gardelle, Arnaud, Guillot, Sirguey, Six (2012). Linking glacier annual mass balance and glacier albedo from MODIS data. In Geophysical Research Abstracts, pp. EGU2012-2871-1.
2012Technical reportBlair B. Fitzharris, Pascal Sirguey (2012). Characterization of the variability of the snow cover area in the Athabasca River Basin with MODIS satellite images. School of Surveying, University of Otago. 12-001.001.R1.0. Report prepared for Environment Canada under contract number KW405-11-1906 0.
2011JournalTenzer, Sirguey, Rattenbury, Nicolson (2011). A digital rock density map of New Zealand. Computers & Geosciences, 37(8), pp. 1181–1191.
2011JournalRecio, Mathieu, Denys, Sirguey, Seddon (2011). Lightweight GPS-tags, one giant leap for wildlife tracking? An assessment approach. PLoS ONE, 6(12), pp. e28225–.
2011JournalAbraham Growcott, Brian Miller, Pascal Sirguey, Elisabeth Slooten, Stephen Dawson (2011). Measuring body length of male sperm whales from their clicks: the relationship between inter-pulse intervals and photogrammetrically measured lengths. Journal of the Acoustical Society of America, 130(1), pp. 568–573.
2011JournalDumont, Sirguey, Arnaud, Six (2011). Monitoring spatial and temporal variations of surface albedo on Saint Sorlin Glacier (French Alps) using terrestrial photography. The Cryosphere, 5(3), pp. 759–771.
2011JournalJoshua Columbus, Pascal Sirguey, Robert Tenzer (2011). A free, fully assessed 15-m DEM for New Zealand. Survey Quarterly, 66, pp. 16–19.
2011ConferencePascal Sirguey, Todd Redpath, Sean J. Fitzsimons, Andreas Kääb (2011). Insights into temporal variability of surface flow velocity of the Tasman Glacier, New Zealand, provided by optical satellite imagery. In Proceedings of the American Geophysical Union (AGU) fall meeting, pp. C42B-06.
2010JournalTenzer, Miku\vska, Maru\vsiak, Pa\vsteka, Karcol, Vajda, Sirguey (2010). Computation of the atmospheric gravity correction in New Zealand. New Zealand Journal of Geology and Geophysics, 53(4), pp. 333–340.
2010ConferenceRobert Tenzer, Pascal Sirguey, Mark Rattenbury, Julia Nicolson (2010). The 2-D digital density model of New Zealand. In Proceedings of the GeoCart’2010 and ICA Symposium on Cartography, pp. 115.
2009PhD ThesisPascal Sirguey (2009). Monitoring snow cover and modelling catchment discharge with remote sensing in the Upper Waitaki Basin, New Zealand.
2009JournalPascal Sirguey, Renaud Mathieu, Yves Arnaud (2009). Subpixel monitoring of the seasonal snow cover with MODIS at 250~m spatial resolution in the Southern Alps of New Zealand: methodology and accuracy assessment. Remote Sensing of Environment, 113(1), pp. 160–181.
2009JournalPascal Sirguey (2009). Simple correction of multiple reflection effects in rugged terrain. International Journal of Remote Sensing, 30(4), pp. 1075–1081.
2009ConferenceSirguey, Mathieu, Arnaud, Fitzharris (2009). Seven years of snow cover monitoring with MODIS to model catchment discharge in New Zealand. In Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, pp. 863–866.
2008JournalPascal Sirguey, Renaud Mathieu, Yves Arnaud, Muhammad M. Khan, Jocelyn Chanussot (2008). Improving MODIS spatial resolution for snow mapping using wavelet fusion and ARSIS concept. IEEE Geosci. Remote Sens. Lett., 5(1), pp. 78–82.
2008JournalPascal Sirguey (2008). Use of remote sensing to monitor and improve the management of stored water resources. Solar Action Bulletin, 86, pp. 22–23.
2008JournalPaulina Lopez, Pascal Sirguey, Yves Arnaud, Bernard Pouyaud, Pierre Chevallier (2008). Snow cover monitoring in the Northern Patagonia Icefield using MODIS satellite images (2000-2006). Global and Planetary Change, 61(3–4), pp. 103–116.
2008JournalSimon Allen, Ian Owens, Pascal Sirguey (2008). Satellite remote sensing procedures for glacial terrain analyses and hazard assessment in the Aoraki Mount Cook region, New Zealand. New Zealand Journal of Geology and Geophysics, 51(1), pp. 73–87.
2008ConferencePaulina Lopez, Pascal Sirguey, Yves Arnaud, Bernard Pouyaud, Pierre Chevalier (2008). Snow cover monitoring in the Northern Patagonia Icefield using MODIS satellite images (2000–2006). In Geophysical Research Abstracts, pp. EGU2008-A-00504.
2007ConferencePascal Sirguey, Sven Oltmer, Renaud Mathieu (2007). Assessment of the performance of image fusion for the mapping of snow using Euclidean distance. In 19\textsuperscriptth Annual Colloquium of the Spatial Information Research Centre, pp. 13–24.
2007ConferencePascal Sirguey, Renaud Mathieu, Yves Arnaud, Muhammad Murtaza Khan, Jocelyn Chanussot (2007). Improved resolution for the detection of snow with MODIS using wavelet fusion. In Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, pp. 3975–3978.
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