Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar Algorithm
As a geomorphic process persistently occurring over the earth’s surface, soil erosion is one of the most serious environmental problems in the world nowadays, seriously threatening agriculture, natural resources, and ecosystem environments. Monitoring surface deformation associated with soil erosion...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2022.953442/full |
| _version_ | 1811287824630022144 |
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| author | Qian Sun Qian Sun Heng Zhang Heng Zhang Long Huang Caihong He |
| author_facet | Qian Sun Qian Sun Heng Zhang Heng Zhang Long Huang Caihong He |
| author_sort | Qian Sun |
| collection | DOAJ |
| description | As a geomorphic process persistently occurring over the earth’s surface, soil erosion is one of the most serious environmental problems in the world nowadays, seriously threatening agriculture, natural resources, and ecosystem environments. Monitoring surface deformation associated with soil erosion will help to understand the dynamics of erosion process and the erosion mechanism. In this article, an improved small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) technique is proposed to monitor the surface deformation over the wind-water erosion crisscross region in the Loess Plateau, China. In particular, a new deformation model considering both of the internal factors and external factors of soil erosion is introduced into the SBAS-InASR algorithm. The results show that the cumulative deformation is close to −200 mm during the investigated period. The deformation rate caused by precipitation is between −0.03 and 0.02 mm/mm. When the wind erosion factor changes by 1 unit, the deformation range is approximately −0.3–0.2 mm. Also, researchers found that the surface deformation is highly correlated to precipitation and wind. The root mean square errors (RMSEs) of the residual deformations estimated from the proposed model are smaller than those estimated from the conventional linear and period models, demonstrating that the proposed method is more suitable to model and analyze the surface deformation in wind-water erosion crisscross region. |
| first_indexed | 2024-04-13T03:26:33Z |
| format | Article |
| id | doaj.art-aee25ea8dfbb449792c919a737ebd02e |
| institution | Directory Open Access Journal |
| issn | 2296-665X |
| language | English |
| last_indexed | 2024-04-13T03:26:33Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj.art-aee25ea8dfbb449792c919a737ebd02e2022-12-22T03:04:39ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2022-07-011010.3389/fenvs.2022.953442953442Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar AlgorithmQian Sun0Qian Sun1Heng Zhang2Heng Zhang3Long Huang4Caihong He5College of Geographic Science, Hunan Normal University, Changsha, ChinaKey Laboratory of Geospatial Big Data Mining and Application, Changsha, ChinaCCCC Water Resources and Hydropower Construction CO. LTD., Ningbo, ChinaNingbo Shanghang Surveying and Mapping CO. LTD., Ningbo, ChinaCollege of Geographic Science, Hunan Normal University, Changsha, ChinaCollege of Geographic Science, Hunan Normal University, Changsha, ChinaAs a geomorphic process persistently occurring over the earth’s surface, soil erosion is one of the most serious environmental problems in the world nowadays, seriously threatening agriculture, natural resources, and ecosystem environments. Monitoring surface deformation associated with soil erosion will help to understand the dynamics of erosion process and the erosion mechanism. In this article, an improved small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) technique is proposed to monitor the surface deformation over the wind-water erosion crisscross region in the Loess Plateau, China. In particular, a new deformation model considering both of the internal factors and external factors of soil erosion is introduced into the SBAS-InASR algorithm. The results show that the cumulative deformation is close to −200 mm during the investigated period. The deformation rate caused by precipitation is between −0.03 and 0.02 mm/mm. When the wind erosion factor changes by 1 unit, the deformation range is approximately −0.3–0.2 mm. Also, researchers found that the surface deformation is highly correlated to precipitation and wind. The root mean square errors (RMSEs) of the residual deformations estimated from the proposed model are smaller than those estimated from the conventional linear and period models, demonstrating that the proposed method is more suitable to model and analyze the surface deformation in wind-water erosion crisscross region.https://www.frontiersin.org/articles/10.3389/fenvs.2022.953442/fullInSARsoil erosionLoess Plateauwind-water erosion crisscross regionmeteorological factors |
| spellingShingle | Qian Sun Qian Sun Heng Zhang Heng Zhang Long Huang Caihong He Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar Algorithm Frontiers in Environmental Science InSAR soil erosion Loess Plateau wind-water erosion crisscross region meteorological factors |
| title | Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar Algorithm |
| title_full | Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar Algorithm |
| title_fullStr | Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar Algorithm |
| title_full_unstemmed | Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar Algorithm |
| title_short | Monitoring Surface Deformation Associated With Soil Erosion in Loess Plateau With an Improved Small Baseline Subset Interferometric Synthetic Aperture Radar Algorithm |
| title_sort | monitoring surface deformation associated with soil erosion in loess plateau with an improved small baseline subset interferometric synthetic aperture radar algorithm |
| topic | InSAR soil erosion Loess Plateau wind-water erosion crisscross region meteorological factors |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2022.953442/full |
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