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DC Field | Value | Language |
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dc.citation.endPage | 14873 | - |
dc.citation.startPage | 14862 | - |
dc.citation.title | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING | - |
dc.citation.volume | 17 | - |
dc.contributor.author | Lee, Jaese | - |
dc.contributor.author | Jung, Sihun | - |
dc.contributor.author | Im, Jungho | - |
dc.date.accessioned | 2024-09-24T10:35:08Z | - |
dc.date.available | 2024-09-24T10:35:08Z | - |
dc.date.created | 2024-09-23 | - |
dc.date.issued | 2024-07 | - |
dc.description.abstract | Soil moisture (SM) is a critical parameter in understanding the Earth's hydrological cycle and managing water resources. Remote sensing instruments, such as Advanced SCATterometer (ASCAT), can provide valuable long-term SM. However, compatibility issues may arise when integrating ASCAT SM retrieval with another retrieval, such as soil moisture active passive (SMAP), a high-quality microwave radiometer-based SM retrieval. In this study, we propose a novel image-to-image translation approach based on the U-Net architecture to convert ASCAT SM data into the format of SMAP (ASCAT2SMAP). The resulting SM from the ASCAT2SMAP was evaluated using temporally separated SMAP data and independent in-situ SM measurement from the International Soil Moisture Network (ISMN). In the separately divided test periods, ASCAT2SMAP showed good agreement with SMAP with R of 928, ubRMSD of 0.043 $\text{m}<^>{3}/\text{m}<^>{3}$, and bias of 0.002 $\text{m}<^>{3}/\text{m}<^>{3}$. When evaluating ASCAT2SMAP with ISMN data, it showed a better agreement than ASCAT and more similar metrics with SMAP. Moreover, we found that the ASCAT2SMAP is more robust to a problem of subsurface scattering than the original ASCAT SM. When simulating V-polarized brightness temperature from ASCAT2SMAP SM, it showed good agreement with ubRMSD of 5.602 K and bias of -0.135 K. Our results are expected to provide a valuable perspective preceding to creation of harmonized SM datasets from different sensors, contributing to improved data integration and analysis in the field of geoscience and remote sensing. | - |
dc.identifier.bibliographicCitation | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, v.17, pp.14862 - 14873 | - |
dc.identifier.doi | 10.1109/JSTARS.2024.3435853 | - |
dc.identifier.issn | 1939-1404 | - |
dc.identifier.scopusid | 2-s2.0-85200244721 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83919 | - |
dc.identifier.wosid | 001308275000035 | - |
dc.language | 영어 | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | ASCAT2SMAP: Image-to-Image Translation to Obtain L-Band-Like Soil Moisture From C-Band Satellite Data | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic; Geography, Physical; Remote Sensing; Imaging Science & Photographic Technology | - |
dc.relation.journalResearchArea | Engineering; Physical Geography; Remote Sensing; Imaging Science & Photographic Technology | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Artificial neural networks | - |
dc.subject.keywordAuthor | Soil moisture | - |
dc.subject.keywordAuthor | Spatial resolution | - |
dc.subject.keywordAuthor | Soil measurements | - |
dc.subject.keywordAuthor | Advanced SCATterometer (ASCAT) | - |
dc.subject.keywordAuthor | image-to-image translation | - |
dc.subject.keywordAuthor | soil moisture active passive (SMAP) | - |
dc.subject.keywordAuthor | soil moisture (SM) | - |
dc.subject.keywordAuthor | u-net | - |
dc.subject.keywordAuthor | Satellite broadcasting | - |
dc.subject.keywordAuthor | Vegetation mapping | - |
dc.subject.keywordAuthor | Sensors | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | SMAP | - |
dc.subject.keywordPlus | FOREST | - |
dc.subject.keywordPlus | MICROWAVE EMISSION | - |
dc.subject.keywordPlus | PRODUCT VALIDATION | - |
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