On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors
Leveling remains the most precise technique for measuring changes in heights. However, for the purposes of determining vertical land motion (VLM), a time series of repeat leveling measurements is susceptible to artifacts and aliasing that may arise due to systematic errors, seasonal surface fluctuat...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Wiley-Blackwell Publishing
2018
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| Online Access: | http://purl.org/au-research/grants/arc/LP140100155 http://hdl.handle.net/20.500.11937/69651 |
| _version_ | 1848762097406574592 |
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| author | Lyon, Todd Filmer, Michael Featherstone, Will |
| author_facet | Lyon, Todd Filmer, Michael Featherstone, Will |
| author_sort | Lyon, Todd |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Leveling remains the most precise technique for measuring changes in heights. However, for the purposes of determining vertical land motion (VLM), a time series of repeat leveling measurements is susceptible to artifacts and aliasing that may arise due to systematic errors, seasonal surface fluctuations, motions occurring during a survey, and any inconsistencies in the observation conditions among epochs. Using measurements from 10 repeat leveling surveys conducted twice yearly along a profile spanning ~40 km across the Perth Basin, Western Australia, we describe the observation, processing, and analysis methods required to mitigate these potential error sources. We also demonstrate how these issues may lead to misinterpretation of the VLM derived from repeat leveling and may contribute to discrepancies between geologically inferred rates of ground motion or those derived from other geodetic measurement techniques. Finally, we employ historical (~40‐year‐old) leveling data in order to highlight the errors that can arise when attempting to extrapolate VLM derived from a geodetic time series, particularly in cases where the long‐term motion may be nonlinear. |
| first_indexed | 2025-11-14T10:42:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-69651 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:42:09Z |
| publishDate | 2018 |
| publisher | Wiley-Blackwell Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-696512022-11-23T03:55:27Z On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors Lyon, Todd Filmer, Michael Featherstone, Will Leveling remains the most precise technique for measuring changes in heights. However, for the purposes of determining vertical land motion (VLM), a time series of repeat leveling measurements is susceptible to artifacts and aliasing that may arise due to systematic errors, seasonal surface fluctuations, motions occurring during a survey, and any inconsistencies in the observation conditions among epochs. Using measurements from 10 repeat leveling surveys conducted twice yearly along a profile spanning ~40 km across the Perth Basin, Western Australia, we describe the observation, processing, and analysis methods required to mitigate these potential error sources. We also demonstrate how these issues may lead to misinterpretation of the VLM derived from repeat leveling and may contribute to discrepancies between geologically inferred rates of ground motion or those derived from other geodetic measurement techniques. Finally, we employ historical (~40‐year‐old) leveling data in order to highlight the errors that can arise when attempting to extrapolate VLM derived from a geodetic time series, particularly in cases where the long‐term motion may be nonlinear. 2018 Journal Article http://hdl.handle.net/20.500.11937/69651 10.1029/2018JB015705 http://purl.org/au-research/grants/arc/LP140100155 http://creativecommons.org/licenses/by-nc-nd/4.0/ Wiley-Blackwell Publishing fulltext |
| spellingShingle | Lyon, Todd Filmer, Michael Featherstone, Will On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors |
| title | On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors |
| title_full | On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors |
| title_fullStr | On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors |
| title_full_unstemmed | On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors |
| title_short | On the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors |
| title_sort | on the use of repeat leveling for the determination of vertical land motion: artifacts, aliasing and extrapolation errors |
| url | http://purl.org/au-research/grants/arc/LP140100155 http://hdl.handle.net/20.500.11937/69651 |