51cg

People

Dr Lydia Sam

Dr Lydia Sam
Dr Lydia Sam
Dr Lydia Sam

MSc, PhD, AFHEA

Lecturer

Accepting PhDs

51cg
Email Address
lydia.sam@abdn.ac.uk
Office Address
St. Mary's Building
Old Aberdeen Campus
Elphinstone Road
AB24 3UF

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School/Department
School of Geosciences




Reconstruction and Characterisation of Slope Failure Events

On 7 February 2021, a flash flood triggered by a rock-ice avalanche caused significant damage of life and property in the Indian Himalaya. Using satellite datasets, digital terrain models and simulations, we report the flow characteristics of two avalanches within a 5-year interval at the slope failure site. Prior to both the events, we observed changes in surface velocity. This study highlights that we should consider antecedent conditions, for holistic assessment of hazards.

External Memberships

  • Editor of
  • Editor of , Part of Springer Nature.
  • Editor of Frontiers Research Topic
  • Editor for the open access journal Remote Sensing (ISSN 2072-4292) / Impact Factor (2018): 4.118. Also editor of special Issues:
    • Special Issue
    • Special Issue
    • Special Issue
  • Invited guest editor for a special issue ‘’ in open access journal Hydrology (ISSN 2306-5338).
Research

Research Overview

  • Remote sensing and Geographical Information System (GIS) applications
  • Landforms and surface processes
  • Glaciology; including alpine glacier dynamics, glacial geomorphology, glacial hazards and glaciers-climate interaction
  • High-resolution terrain modelling and interpretation
  • Use of Unmanned aerial systems (UAS)/drones for environmental monitoring and Mars analogue research

Research Areas

Accepting PhDs

I am currently accepting PhDs in Geography and Environment, Geology and Geophysics.

Please get in touch if you would like to discuss your research ideas further.

Geography and Environment

  • Accepting PhDs
View Research Area

Geology and Geophysics

  • Accepting PhDs
View Research Area

Research Specialisms

  • Remote Sensing
  • Geographical Information Systems
  • Glaciology and Cryospheric Systems
  • Geography
  • Planetary Science

Our research specialisms are based on the Higher Education Classification of Subjects (HECoS) which is , published under the licence.

Funding and Grants

  • Global Challange Research Internal Fund: Pump Prime grant for the project 'Ice stupa: a solution to improve Himalayan-Karakoram mountain community resilience to water scarcity'. During August 2020 - July 2021. Funding agency: The Aberdeen Grants Academy, 51cg
  • 'Geostatistical analysis of spatiotemporal trends of COVID-19 spread in UK'. NERC-Funded QUADRAT Research Experience Placement
  • 'Assessing the long-term impact of climatic variables on coastal changes in Scotland using geospatial tools'. NERC-Funded QUADRAT Research Experience Placement
  • 'Robust infrastructure – Adapting railway maintenance to climate change(CliMaint)'. Funding Agency: VINNOVA Sweden’s Innovation Agency
Teaching

Courses

Teaching Responsibilities

GG5540/GG5563 (CURRENT APPLICATIONS OF GIS): Course Coordinator and Tutor

GG3069 (REMOTE SENSING AND GEOGRAPHICAL INFORMATION SYSTEMS): Co-course coordinator and Tutor

GG5910 (DISSERTATION PROJECT IN GIS): Supervision

GL5206/5207 (THE NATURE OF GEOLOGICAL AND GEOGRAPHICAL DATA): Tutor

GL5546 (APPLIED, INDUSTRY AND RESEARCH GEOPHYSICS): Guest Lecturer

Publications

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  • Does a roosting flock of migratory birds also echelon in high winds?

    Bhardwaj, A., Sam, L.
    Journal of ethology, vol. 40, pp. 291–296
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • Editorial:: Applications of Remote Sensing in Glaciology

    Bhardwaj, A., Sam, L.
    Remote Sensing, vol. 14, no. 17, 4146
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • Editorial: Advances in Mars Research and Exploration

    Bhardwaj, A., Sam, L., Buchroithner, M. F., Galofre, A. G.
    Frontiers in Astronomy and Space Sciences, vol. 9, 971104
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • Visualising avalanches in the Himalayas

    Bhardwaj, A., Sam, L.
    Royal Geographical Society with Institute of British Geographers.
    Other Contributions: Other Contributions
    • [ONLINE]

  • Spatiotemporal quantification of key environmental changes in Stok and Kang Yatze regions of Ladakh Himalaya, India

    Soheb, M., Ramanathan, A., Bhardwaj, A., Sam, L.
    Geocarto International, vol. 37, no. 26, pp. 11509–11533
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]
    • [ONLINE]

  • How satellites are helping us to understand deadly avalanches

    Bhardwaj, A., Sam, L.
    The Conversation
    Contributions to Specialist Publications: Articles
    • [ONLINE]

  • Reconstruction and Characterisation of Past and the Most Recent Slope Failure Events at the 2021 Rock-Ice Avalanche Site in Chamoli, Indian Himalaya

    Bhardwaj, A., Sam, L.
    Remote Sensing, vol. 14, no. 4, 949
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • A Remote Sensing Perspective on Mass Wasting in Contrasting Planetary Environments: Cases of the Moon and Ceres

    Sam, L., Bhardwaj, A.
    Remote Sensing, vol. 14, no. 4, 1049
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]
    • [ONLINE]

  • Potential of Multi-resolution Satellite Imagery Products for Scale Variant Topographic Mapping

    Gahlot, N., Prusty, G., Sam, L., Dhara, M.
    Journal of the Indian Society of Remote Sensing, vol. 50, pp. 175-187
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [ONLINE]
    • [ONLINE]

  • Tackling the global change challenges to water security in Tajikistan, the water tower of Central Asia

    Singh, S., Bhardwaj, A., Sam, L., Haro Monteagudo, D.
    EGU General Assembly 2022
    Contributions to Conferences: Abstracts
    • [ONLINE] DOI:

  • Four decades of understanding Martian geomorphology: Revisiting Baker’s ‘The geomorphology of Mars’

    Bhardwaj, A., Sam, L., Gharehchahi, S.
    Progress in Physical Geography, vol. 45, no. 6, pp. 979-989
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • Local- and Regional-Scale Forcing of Glacier Mass Balance Changes in the Swiss Alps

    Gharehchahi, S., Ballinger, T. J., Jensen, J. L. R., Bhardwaj, A., Sam, L., Weaver, R. C., Butler, D. R.
    Remote Sensing, vol. 13, no. 10, e1949
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • A Comparative View of Glacial and Periglacial Landforms on Earth and Mars

    Galofre, A. G., Andres, C. N., Becerra, P., Bhardwaj, A., Bramson, A., Butcher, F., Christensen, P. R., Conway, S. J., Coronato, A., Hauber, E., Hibbard, S., Knightly, J. P., Meng, T., Osinski, G. R., Petersen, E. I., Plaut, J., Rabassa, J., Rutledge, A. M., Sam, L., Serla, J., Whipple, K. X.
    Bulletin of the AAS, vol. 53, no. 4
    Contributions to Journals: Articles
    • [ONLINE]
    • [ONLINE] DOI:

  • Mars Astrobiological Cave and Internal habitability Explorer (MACIE): A New Frontiers Mission Concept

    Phillips-Lander, C., Agha-mohamamdi, A., Wynne, J., Titus, T., Chanover, N., Demirel-Floyd, C., Uckert, K., Williams, K., Wyrick, D., Blank, J. G., Boston, P., Mitchell, K., Kereszturi, A., Martin-Torres, J., Shkolyar, S., Bardabelias, N., Datta, S., Retherford, K., Sam, L., Bhardwaj, A., Fairén, A., Flannery, D., Wiens, R.
    Bulletin of the AAS, vol. 53, no. 4, 347
    Contributions to Journals: Articles
    • [ONLINE]
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • Solar-System-Wide Significance of Mars Polar Science

    Smith, I., Calvin, W. M., Smith, D. E., Hansen, C., Diniega, S., McEwen, A., Thomas, N., Banfield, D., Titus, T. N., Becerra, P., Kahre, M., Forget, F., Hecht, M., Byrne, S., Hvidberg, C. S., Hayne, P. O., III, J. W. H., Mellon, M., Horgan, B., Mustard, J., Holt, J. W., Howard, A., McCleese, D., Stoker, C., James, P., Putzig, N. E., Whitten, J., Buhler, P., Spiga, A., Crismani, M., Aye, K. M., Portyankina, A., Orosei, R., Bramson, A., Hanley, J., Sori, M., Aharonson, O., Clifford, S., Sizemore, H., Morgan, G., Hartmann, B., Schorghofer, N., Clark, R., Berman, D., Crown, D., Chuang, F., Siegler, M., Dobrea, E. N., Lynch, K., Obbard, R. W., Elmaary, M. R., Fisher, D., Kleinboehl, A., Balme, M., Schmitt, B., Daly, M., Ewing, R. C., Herkenhoff, K. E., Fenton, L., Guzewich, S. D., Koutnik, M., Levy, J., Massey, R., Łosiak, A., Eke, V., Goldsby, D., Cross, A., Hager, T., Piqueux, S., Kereszturi, A., Seelos, K., Wood, S., Hauber, E., Amos, C., Russell, P., Jaumann, R., Michael, G., Conway, S., Khayat, A., Lewis, S., Luizzi, G., Martinez, G., Mesick, K., Montabone, L., Johnsson, A., Pankine, A., Phillips-Lander, C., Read, P., Edgar, L., Zacny, K., McAdam, A., Rutledge, A., Bertrand, T., Widmer, J., Stillman, D., Soto, A., Yoldi, Z., Young, R., Svensson, A., Sam, L., Landis, M., Bhardwaj, A., Chojnacki, M., Kite, E., Thomas, P., Plaut, J., Bapst, J., Milkovich, S., Whiteway, J., Moores, J., Rezza, C., Karimova, R., Mishev, I., Brenen, A. V., Acharya, P., Chesal, J., Pascuzzo, A., Vos, E., Osinski, G., Andres, C., Neisch, C., Hibbard, S., Sinha, P., Knightly, J. P., Cartwright, S., Kounaves, S., Orgel, C., Skidmore, M., MacGregor, J., Staehle, R., Rabassa, J., Gallagher, C., Coronato, A., Galofre, A. G., Wilson, J., McKeown, L., Oliveira, N., Fawdon, P., Gayathri, U., Stuurman, C., Herny, C., Butcher, F., Bernardini, F., Perry, M., Hu, R., Mukherjee, S., Chevrier, V., Banks, M. E., Meng, T., Johnson, P. A., Tober, B., Johnson, J. C., Ulamsec, S., Echaurren, J. C., Khuller, A., Dinwiddie, C., Adeli, S., Henderson, B. L., Lozano, L. R., Lalich, D., Rivera-Valentín, E., Nerozzi, S., Petersen, E., Foss, F., Lorenz, R., Eigenbrode, J., Day, M., Brown, A., Pajola, M., Karatekin, ?., Lucchetti, A., Cesar, C., Newman, C., Cave, T. G., Tamppari, L., Mischna, M., Patel, M., Streeter, P., Stern, J. C., Dundas, C. M.
    Bulletin of the AAS, vol. 53, no. 4
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • Glacier Ice Thickness Estimation and Future Lake Formation in Swiss Southwestern Alps—The Upper Rhône Catchment: A VOLTA Application

    Gharehchahi, S., James, W. H. M., Bhardwaj, A., Jensen, J. L. R., Sam, L., Ballinger, T. J., Butler, D. R.
    Remote Sensing, vol. 12, no. 20, 3443
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]
    • [ONLINE]
    • [ONLINE]

  • Small lava caves as possible exploratory targets on Mars: Analogies drawn from UAV imaging of an Icelandic lava field

    Sam, L., Bhardwaj, A., Singh, S., Martin-Torres, F. J., Zorzano, M., Luque, J. A. R.
    Remote Sensing, vol. 12, no. 12, 1970
    Contributions to Journals: Articles
    • [ONLINE] DOI:
    • [OPEN ACCESS]
    • [ONLINE]

  • UAV Imaging of Small Caves in Icelandic Lava Field as Possible Mars Analogues

    Sam, L., Bhardwaj, A., Singh, S., Martin-Torres, F. J.
    Contributions to Conferences: Papers
    • [ONLINE]

  • Martian Caves as Special Region Candidates

    Martin-Torres, J., Olsson, P., Zorzano, M., Bhardwaj, A., Sam, L., Singh, S.
    Contributions to Conferences: Papers
    • [ONLINE]

  • Quantifying the Congruence between Air and Land Surface Temperatures for Various Climatic and Elevation Zones of Western Himalaya

    Singh, S., Bhardwaj, A., Singh, A., Sam, L., Shekhar, M., Martin-Torres, J., Zorzano Mier, M.
    Remote Sensing, vol. 11, no. 24, 2889
    Contributions to Journals: Articles
    • [ONLINE]
    • [ONLINE] DOI:
    • [OPEN ACCESS]
    • [OPEN ACCESS]
    • [OPEN ACCESS]

  • UAV Imaging of a Martian Brine Analogue Environment in a Fluvio-Aeolian Setting

    Bhardwaj, A., Sam, L., Martín-Torres, F., Zorzano, M., Luque, J. R.
    Remote Sensing, vol. 11, no. 18, 2104
    Contributions to Journals: Articles
    • [ONLINE]
    • [ONLINE] DOI:
    • [OPEN ACCESS]
    • [OPEN ACCESS]

  • Distribution and Morphologies of Transverse Aeolian Ridges in ExoMars 2020 Rover Landing Site

    Bhardwaj, A., Sam, L., Martin-Torres, F. J., Zorzano, M.
    Remote Sensing, vol. 11, no. 8, 912
    Contributions to Journals: Articles
    • [ONLINE]
    • [ONLINE] DOI:
    • [OPEN ACCESS]
    • [OPEN ACCESS]

  • Are Slope Streaks Indicative of Global-Scale Aqueous Processes on Contemporary Mars?

    Bhardwaj, A., Sam, L., Martín-Torres, F. J., Zorzano, M.
    Reviews of Geophysics, vol. 57, no. 1, pp. 48-77
    Contributions to Journals: Articles
    • [ONLINE]
    • [ONLINE] DOI:
    • [OPEN ACCESS]

  • Analysing geospatial techniques for land degradation studies in hindu Kush-Himalaya

    Bhardwaj, A., Kumar, R., Sam, L.
    Environmental Change in the Himalayan Region: Twelve Case Studies. Saikia, A., Thapa, P. (eds.). 1 edition. Springer International Publishing AG, pp. 117-135, 19 pages
    Chapters in Books, Reports and Conference Proceedings: Chapters
    • [ONLINE] DOI:
    • [ONLINE]

  • Discovery of recurring slope lineae candidates in Mawrth Vallis, Mars

    Bhardwaj, A., Sam, L., Martín-Torres, F. J., Zorzano, M.
    Scientific Reports, vol. 9, 2040
    Contributions to Journals: Articles
    • [ONLINE]
    • [ONLINE] DOI:
    • [OPEN ACCESS]
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