Ice borehole thermometry: sensor placement using greedy optimal sampling
-д хадгалсан:
| -д хэвлэсэн: | Geoscientific Instrumentation, Methods and Data Systems vol. 14, no. 2 (2025), p. 459-475 |
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| Үндсэн зохиолч: | |
| Бусад зохиолчид: | , , |
| Хэвлэсэн: |
Copernicus GmbH
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| Нөхцлүүд: | |
| Онлайн хандалт: | Citation/Abstract Full Text Full Text - PDF |
| Шошгууд: |
Шошго байхгүй, Энэхүү баримтыг шошголох эхний хүн болох!
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MARC
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| 024 | 7 | |a 10.5194/gi-14-459-2025 |2 doi | |
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| 045 | 2 | |b d20250101 |b d20251231 | |
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| 100 | 1 | |a Shaju, Kshema |u Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam, Germany; School of Mathematics and Natural Sciences, Bergische Universität Wuppertal, Wuppertal, Germany | |
| 245 | 1 | |a Ice borehole thermometry: sensor placement using greedy optimal sampling | |
| 260 | |b Copernicus GmbH |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a Borehole thermometry is an important tool for reconstructing past climate conditions, assessing changes in land energy storage, and understanding subsurface thermal regimes such as permafrost and glacial dynamics. Optimizing the temperature sensor placement within boreholes allows us to maximize the informativeness of temperature measurements, particularly in polar regions where operational constraints necessitate cost-effective solutions. Traditional sensor placement methods such as linear or exponential spacing, often overlook site-specific subsurface ice heat distribution characteristics, potentially limiting the accuracy of the measured temperature profile. In this paper, we propose a greedy optimal sampling technique for strategically placing temperature sensors in ice boreholes. Utilizing heat transfer model simulations, this method selects sensor locations that minimize interpolation errors in reconstructed temperature profiles. We apply our approach to two distinct ice borehole sites: EPICA Dronning Maud Land site in East Antarctica and the Greenland Ice Core Project site, each with unique surface conditions. Our results demonstrate that the greedy optimal sensor placement significantly outperforms conventional linear and exponential spacing methods, reducing sampling errors by up to a factor of ten and thus achieving similar informativeness with fewer sensors. This strategy offers a cost–effective means to maximize the information obtained from ice borehole temperature measurements, thereby potentially enhancing the precision of climate reconstructions. | |
| 653 | |a Permafrost | ||
| 653 | |a Thermometry | ||
| 653 | |a Heat distribution | ||
| 653 | |a Boreholes | ||
| 653 | |a Temperature measurement | ||
| 653 | |a Energy storage | ||
| 653 | |a Temperature sensors | ||
| 653 | |a Polar regions | ||
| 653 | |a Polar environments | ||
| 653 | |a Sensors | ||
| 653 | |a Temperature profiles | ||
| 653 | |a Sampling | ||
| 653 | |a Sampling error | ||
| 653 | |a Boundary conditions | ||
| 653 | |a Geothermal power | ||
| 653 | |a Heat transfer | ||
| 653 | |a Placement | ||
| 653 | |a Ice | ||
| 653 | |a Sampling methods | ||
| 653 | |a Temperature | ||
| 653 | |a Temperature profile | ||
| 653 | |a Ice sheets | ||
| 653 | |a Optimization | ||
| 653 | |a Error reduction | ||
| 653 | |a Algorithms | ||
| 653 | |a Climatic conditions | ||
| 653 | |a Climate | ||
| 653 | |a Environmental | ||
| 700 | 1 | |a Laepple, Thomas |u Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam, Germany; MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany; Department of Geosciences, University of Bremen, Bremen, Germany | |
| 700 | 1 | |a Hirsch, Nora |u Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam, Germany; Department of Geosciences, University of Bremen, Bremen, Germany | |
| 700 | 1 | |a Zaspel, Peter |u School of Mathematics and Natural Sciences, Bergische Universität Wuppertal, Wuppertal, Germany | |
| 773 | 0 | |t Geoscientific Instrumentation, Methods and Data Systems |g vol. 14, no. 2 (2025), p. 459-475 | |
| 786 | 0 | |d ProQuest |t Publicly Available Content Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3280846015/abstract/embedded/75I98GEZK8WCJMPQ?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text |u https://www.proquest.com/docview/3280846015/fulltext/embedded/75I98GEZK8WCJMPQ?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3280846015/fulltextPDF/embedded/75I98GEZK8WCJMPQ?source=fedsrch |