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James Lea

Professor James Lea
M.A. (Cantab.), M.Sc., Ph.D.

Publications

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2024

Crevasse field response to glacier dynamic change in Greenland

Lea, J., Chudley, T., Davies, B., & Van Wyk De Vries, M. (2024). Crevasse field response to glacier dynamic change in Greenland. doi:10.5194/egusphere-egu24-18311

DOI
10.5194/egusphere-egu24-18311
Other

Cold-laboratory experiments to observe meltwater and ice layer interactions in snowpacks

Shiggins, C., Mair, D., Lea, J., & Nias, I. (2024). Cold-laboratory experiments to observe meltwater and ice layer interactions in snowpacks. doi:10.5194/egusphere-egu24-7278

DOI
10.5194/egusphere-egu24-7278
Other

Mapping the hydrology of Greenland’s crevasses with deep learning 

Chudley, T., Winterbottom, T., Stokes, C., & Lea, J. (2024). Mapping the hydrology of Greenland’s crevasses with deep learning . doi:10.5194/egusphere-egu24-6661

DOI
10.5194/egusphere-egu24-6661
Other

Supplementary material to "Arctic glacier snowline altitudes rise 150 meters over the last four decades"

Larocca, L. J., Lea, J. M., Erb, M. P., McKay, N. P., Phillips, M., Lamantia, K. A., & Kaufman, D. S. (2024). Supplementary material to "Arctic glacier snowline altitudes rise 150 meters over the last four decades". doi:10.5194/egusphere-2024-522-supplement

DOI
10.5194/egusphere-2024-522-supplement
Other

Climate Variability and Glacier Dynamics Linked to Fjord Productivity Changes Over the Last <i>ca.</i> 3300 Years in Nuup Kangerlua, Southwest Greenland

Oksman, M., Kvorning, A. B., Pearce, C., Korsgaard, N. J., Lea, J. M., Seidenkrantz, M., & Ribeiro, S. (2024). Climate Variability and Glacier Dynamics Linked to Fjord Productivity Changes Over the Last <i>ca.</i> 3300 Years in Nuup Kangerlua, Southwest Greenland. Paleoceanography and Paleoclimatology, 39(3). doi:10.1029/2023pa004710

DOI
10.1029/2023pa004710
Journal article

ERALClim - WMO climate baseline global climate variables derived from ERA5-Land reanalysis data (Version 1) [Data set]

Lea, J., Fitt, R., Brough, S., Dick, J., Jones, N., Carr, G., & Webster, R. (2024). ERALClim - WMO climate baseline global climate variables derived from ERA5-Land reanalysis data (Version 1) [Data set]. https://doi.org/10.5281/zenodo.8124385.

Other

ERALClim - annual global climate variables derived from ERA5-Land reanalysis data (Version 1) [Data set]

Lea, J., Fitt, R., Brough, S., Dick, J., Jones, N., Carr, G., & Webster, R. (2024). ERALClim - annual global climate variables derived from ERA5-Land reanalysis data (Version 1) [Data set]. https://doi.org/10.5281/zenodo.8120646.

Other

Expansion of supraglacial lake area, volume and extent on the Greenland Ice Sheet from 1985 to 2023

Fan, Y., Ke, C. -Q., Luo, L., Shen, X., Livingstone, S. J., & Lea, J. M. (n.d.). Expansion of supraglacial lake area, volume and extent on the Greenland Ice Sheet from 1985 to 2023. Journal of Glaciology, 1-44. doi:10.1017/jog.2024.87

DOI
10.1017/jog.2024.87
Journal article

Making climate reanalysis and CMIP6 data processing easy: two “point-and-click” cloud based user interfaces for environmental and ecological studies

Lea, J. M., Fitt, R. N. L., Brough, S., Carr, G., Dick, J., Jones, N., & Webster, R. J. (n.d.). Making climate reanalysis and CMIP6 data processing easy: two “point-and-click” cloud based user interfaces for environmental and ecological studies. Frontiers in Environmental Science, 12. doi:10.3389/fenvs.2024.1294446

DOI
10.3389/fenvs.2024.1294446
Journal article

2023

A new model for supraglacial hydrology evolution and drainage for the Greenland ice sheet (SHED v1.0)

DOI
10.5194/gmd-2022-308
Preprint

Atmospheric drivers of melt-related ice speed-up events on the Russell Glacier in Southwest Greenland

DOI
10.5194/tc-2023-1
Preprint

Automated ArcticDEM iceberg detection tool: insights into area and volume distributions, and their potential application to satellite imagery and modelling of glacier–iceberg–ocean systems

Shiggins, C. J., Lea, J. M., & Brough, S. (n.d.). Automated ArcticDEM iceberg detection tool: insights into area and volume distributions, and their potential application to satellite imagery and modelling of glacier–iceberg–ocean systems. The Cryosphere, 17(1), 15-32. doi:10.5194/tc-17-15-2023

DOI
10.5194/tc-17-15-2023
Journal article

GEEDiT—Digitizing from Satellite Imagery

Lea, J. (2024). GEEDiT—Digitizing from Satellite Imagery. In Cloud-Based Remote Sensing with Google Earth Engine (pp. 507-524). Springer International Publishing. doi:10.1007/978-3-031-26588-4_26

DOI
10.1007/978-3-031-26588-4_26
Chapter

Terminus Traces for publication 'Ocean-forcing and glacier-specific factors drive differing glacier response across the 69 ºN boundary, east Greenland' (Version 1) [Data set]

Brough, S., Carr, J. R., Ross, N., & Lea, J. (2023). Terminus Traces for publication 'Ocean-forcing and glacier-specific factors drive differing glacier response across the 69 ºN boundary, east Greenland' (Version 1) [Data set]. https://doi.org/10.5281/zenodo.6904219.

Other

2022

2021

TermPicks: A century of Greenland glacier terminus data for use in machine learning applications

DOI
10.5194/tc-2021-311
Preprint

Automated mapping of the seasonal evolution of surface meltwater and its links to climate on the Amery Ice Shelf, Antarctica

DOI
10.5194/tc-2021-177
Preprint

Supplementary material to &amp;quot;Automated mapping of the seasonal evolution of surface meltwater and its links to climate on the Amery Ice Shelf, Antarctica&amp;quot;

DOI
10.5194/tc-2021-177-supplement
Preprint

Linear response of the Greenland ice sheet's tidewater glacier terminus positions to climate

Fahrner, D., Lea, J. M., Brough, S., Mair, D. W. F., & Abermann, J. (2021). Linear response of the Greenland ice sheet's tidewater glacier terminus positions to climate. JOURNAL OF GLACIOLOGY, 67(262), 193-203. doi:10.1017/jog.2021.13

DOI
10.1017/jog.2021.13
Journal article

2020

2019

Pushing the Limits: Palynological Investigations at the Margin of the Greenland Ice Sheet in the Norse Western Settlement

Schofield, J. E., Pearce, D. M., Mair, D. W. F., Rea, B. R., Lea, J. M., Kamenos, N. A., . . . Edwards, K. J. (2019). Pushing the Limits: Palynological Investigations at the Margin of the Greenland Ice Sheet in the Norse Western Settlement. ENVIRONMENTAL ARCHAEOLOGY. doi:10.1080/14614103.2019.1677075

DOI
10.1080/14614103.2019.1677075
Journal article

2018

Exceptional retreat of Kangerlussuaq Glacier, east Greenland, between 2016 and 2018

DOI
10.31223/osf.io/u5ydx
Preprint

INFLUENCES OF SALINITY ON THE PHYSIOLOGY AND DISTRIBUTION OF THE ARCTIC CORALLINE ALGAE, <i>LITHOTHAMNION GLACIALE</i> (CORALLINALES, RHODOPHYTA)

Schoenrock, K. M., Bacquet, M., Pearce, D., Rea, B. R., Schofield, J. E., Lea, J., . . . Kamenos, N. (2018). INFLUENCES OF SALINITY ON THE PHYSIOLOGY AND DISTRIBUTION OF THE ARCTIC CORALLINE ALGAE, <i>LITHOTHAMNION GLACIALE</i> (CORALLINALES, RHODOPHYTA). JOURNAL OF PHYCOLOGY, 54(5), 690-702. doi:10.1111/jpy.12774

DOI
10.1111/jpy.12774
Journal article

Google Earth Engine Digitisation Tool (GEEDiT), and Margin change Quantification Tool (MaQiT) - simple tools for the rapid mapping and quantification of changing Earth surface margins

Lea, J. M. (2018). Google Earth Engine Digitisation Tool (GEEDiT), and Margin change Quantification Tool (MaQiT) - simple tools for the rapid mapping and quantification of changing Earth surface margins. Earth Surface Dynamics, 6(3), 551-561. doi:10.5194/esurf-6-551-2018

DOI
10.5194/esurf-6-551-2018
Journal article

The Google Earth Engine Digitisation Tool (GEEDiT) and the Margin change Quantification Tool (MaQiT) – simple tools for the rapid mapping and quantification of changing Earth surface margins

Lea, J. M. (n.d.). The Google Earth Engine Digitisation Tool (GEEDiT) and the Margin change Quantification Tool (MaQiT) – simple tools for the rapid mapping and quantification of changing Earth surface margins. Earth Surface Dynamics, 6(3), 551-561. doi:10.5194/esurf-6-551-2018

DOI
10.5194/esurf-6-551-2018
Journal article

2017

Enhanced ice sheet melting driven by volcanic eruptions during the last deglaciation

Muschitiello, F., Pausata, F. S. R., Lea, J. M., Mair, D. W. F., & Wohlfarth, B. (2017). Enhanced ice sheet melting driven by volcanic eruptions during the last deglaciation. Nature Communications, 8. doi:10.1038/s41467-017-01273-1

DOI
10.1038/s41467-017-01273-1
Journal article

2016

Shallow ice approximation, second order shallow ice approximation, and full Stokes models: A discussion of their roles in palaeo-ice sheet modelling and development

Kirchner, N., Ahlkrona, J., Gowan, E. J., Lotstedt, P., Lea, J. M., Noormets, R., . . . Benham, T. (2016). Shallow ice approximation, second order shallow ice approximation, and full Stokes models: A discussion of their roles in palaeo-ice sheet modelling and development. QUATERNARY SCIENCE REVIEWS, 147, 136-147. doi:10.1016/j.quascirev.2016.01.032

DOI
10.1016/j.quascirev.2016.01.032
Journal article

Shallow ice approximation, second order shallow ice approximation, and full Stokes models: A discussion of their roles in palaeo-ice sheet modelling and development

Kirchner, N., Ahlkrona, J., Gowan, E. J., Lotstedt, P., Lea, J. M., Noormets, R., . . . Benham, T. (2016). Shallow ice approximation, second order shallow ice approximation, and full Stokes models: A discussion of their roles in palaeo-ice sheet modelling and development. QUATERNARY SCIENCE REVIEWS, 135, 103-114. doi:10.1016/j.quascirev.2016.01.013

DOI
10.1016/j.quascirev.2016.01.013
Journal article

ICESHEET 1.0: A program to produce paleo-ice sheet models with minimal assumptions

DOI
10.5194/gmd-2016-9
Preprint

2014

Fluctuations of a Greenlandic tidewater glacier driven by changes in atmospheric forcing: observations and modelling of Kangiata Nunaata Sermia, 1859–present

Lea, J. M., Mair, D. W. F., Nick, F. M., Rea, B. R., van As, D., Morlighem, M., . . . Weidick, A. (2014). Fluctuations of a Greenlandic tidewater glacier driven by changes in atmospheric forcing: observations and modelling of Kangiata Nunaata Sermia, 1859–present. The Cryosphere, 8(6), 2031-2045. doi:10.5194/tc-8-2031-2014

DOI
10.5194/tc-8-2031-2014
Journal article

Fluctuations of a Greenlandic tidewater glacier driven by changes in atmospheric forcing: observations and modelling of Kangiata Nunaata Sermia, 1859–present

DOI
10.5194/tcd-8-2005-2014
Preprint

Increasing meltwater discharge from the Nuuk region of the Greenland ice sheet and implications for mass balance (1960-2012)

van As, D., Andersen, M. L., Petersen, D., Fettweis, X., van Angelen, J. H., Lenaerts, J. T. M., . . . Steffen, K. (2014). Increasing meltwater discharge from the Nuuk region of the Greenland ice sheet and implications for mass balance (1960-2012). JOURNAL OF GLACIOLOGY, 60(220), 314-322. doi:10.3189/2014JoG13J065

DOI
10.3189/2014JoG13J065
Journal article

Terminus-driven retreat of a major southwest Greenland tidewater glacier during the early 19th century: insights from glacier reconstructions and numerical modelling

Lea, J. M., Mair, D. W. F., Nick, F. M., Rea, B. R., Weidick, A., Kjaer, K. H., . . . Schofield, J. E. (2014). Terminus-driven retreat of a major southwest Greenland tidewater glacier during the early 19th century: insights from glacier reconstructions and numerical modelling. JOURNAL OF GLACIOLOGY, 60(220), 333-344. doi:10.3189/2014JoG13J163

DOI
10.3189/2014JoG13J163
Journal article