polartoolkit.fetch.ghf

ghf(version, region=None, spacing=None, registration=None, **kwargs)

Load 1 of 8 ‘versions’ of Antarctic geothermal heat flux data.

version=’an-2015’ From An et al.[1]. Accessed from http://www.seismolab.org/model/antarctica/lithosphere/index.html

version=’martos-2017’ From Martos et al.[2] and Martos[3]. Accessed from https://doi.pangaea.de/10.1594/PANGAEA.882503

version=’shen-2020’: From Shen et al.[4]. Accessed from https://sites.google.com/view/weisen/research-products?authuser=0 Used https://paperform.co/templates/apps/direct-download-link-google-drive/ to generate a direct download link from google drive page. https://drive.google.com/uc?export=download&id=1Fz7dAHTzPnlytuyRNctk6tAugCAjiqzR

version=’burton-johnson-2020’ From Burton-Johnson et al.[5]. Accessed from supplementary material Choose for either of grid, or the point measurements

version=’losing-ebbing-2021’ From Lösing and Ebbing[6] and Lösing and Ebbing[7]. Accessed from https://doi.pangaea.de/10.1594/PANGAEA.930237

version=’aq1’ From Stål et al.[8] and Stål et al.[9]. Accessed from https://doi.pangaea.de/10.1594/PANGAEA.924857

version=’hazzard-richards-2024’ From Hazzard and Richards[10]. Accessed from https://osf.io/54zam/overview

version=’haeger-2024’ From Haeger et al.[11] and Haeger et al.[12]. Accessed from https://doi.org/10.5880/GFZ.1.3.2022.002

Parameters:

• version (str) – Either ‘an-2015’, ‘martos-2017’, ‘shen-2020’, ‘burton-johnson-2020’, ‘losing-ebbing-2021’, ‘aq1’, ‘hazzard-richards-2024’, or ‘haeger-2024’

• region (tuple[float, float, float, float] | None) – region to clip the loaded grid to, in format [xmin, xmax, ymin, ymax], by default doesn’t clip

• spacing (float | None) – grid spacing to resample the loaded grid to, by default spacing is read from downloaded files

• registration (str | None) – change registration with either ‘p’ for pixel or ‘g’ for gridline registration, by default is None.

• kwargs (Any) – if version=’burton-johnson-2020’, then kwargs are passed to return point measurements instead of the grid.

• **kwargs (Any) – additional keyword arguments to pass to the resample_grid function

Returns:

Returns a loaded, and optional clip/resampled grid of GHF data.

Return type:

DataArray

References

[1]

Meijian An, Douglas A. Wiens, Yue Zhao, Mei Feng, Andrew Nyblade, Masaki Kanao, Yuansheng Li, Alessia Maggi, and Jean-Jacques Lévêque. Temperature, lithosphere-asthenosphere boundary, and heat flux beneath the Antarctic Plate inferred from seismic velocities. Journal of Geophysical Research: Solid Earth, 120(12):8720–8742, December 2015. doi:10.1002/2015JB011917.

[2]

Yasmina M. Martos, Manuel Catalán, T. A. Jordan, Alexander Golynsky, Dmitry Golynsky, Graeme Eagles, and David G. Vaughan. Heat Flux Distribution of Antarctica Unveiled. Geophysical Research Letters, 44:1–10, November 2017. doi:10.1002/2017GL075609.

[3]

Yasmina M. Martos. Antarctic geothermal heat flux distribution and estimated Curie Depths, links to gridded files. 2017. doi:10.1594/PANGAEA.882503.

[4]

Weisen Shen, Douglas A. Wiens, Andrew J. Lloyd, and Andrew A. Nyblade. A geothermal heat flux map of Antarctica empirically constrained by seismic structure. Geophysical Research Letters, 2020. doi:10.1029/2020GL086955.

[5]

Alex Burton-Johnson, Ricarda Dziadek, and Carlos Martin. Geothermal heat flow in Antarctica: current and future directions. The Cryosphere Discussions, pages 1–45, 2020. doi:10.5194/tc-2020-59.

[6]

M. Lösing and J. Ebbing. Predicting Geothermal Heat Flow in Antarctica With a Machine Learning Approach. Journal of Geophysical Research: Solid Earth, June 2021. doi:10.1029/2020JB021499.

[7]

Mareen Lösing and Jörg Ebbing. Predicted Antarctic Heat Flow and Uncertainties using Machine Learning. 2021. doi:10.1594/PANGAEA.930237.

[8]

Tobias Stål, Anya M. Reading, Jacqueline A. Halpin, and Joanne M. Whittaker. Antarctic Geothermal Heat Flow Model: Aq1. Geochemistry, Geophysics, Geosystems, February 2021. doi:10.1029/2020GC009428.

[9]

Tobias Stål, Anya M. Reading, Jacqueline A. Halpin, Phipps Steven J, and Joanne M. Whittaker. The Antarctic crust and upper mantle: a flexible 3D model and framework for interdisciplinary research. Zenodo, August 2020. doi:10.5281/zenodo.4003423.

[10]

James A. N. Hazzard and Fred D. Richards. Antarctic Geothermal Heat Flow, Crustal Conductivity and Heat Production Inferred From Seismological Data. Geophysical Research Letters, 51(7):e2023GL106274, 2024. doi:10.1029/2023GL106274.

[11]

C. Haeger, A. G. Petrunin, and M. K. Kaban. Geothermal Heat Flow and Thermal Structure of the Antarctic Lithosphere. Geochemistry, Geophysics, Geosystems, October 2022. doi:10.1029/2022GC010501.

[12]

Carina Haeger, Alexey G. Petrunin, and Mikhail K. Kaban. Geothermal heat flow and thermal structure of the Antarctic lithosphere. 2022. doi:10.5880/GFZ.1.3.2022.002.