Validation and Analysis of MISR and POLDER Aerosol Products over China
Multi-angle polarization measurement is an important technical means of satellite remote sensing applied to aerosol monitoring. By adding angle information and polarization measurements, aerosol optical and microphysical properties can be more comprehensively and accurately retrieved. The accuracy o...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-08-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/14/15/3697 |
| _version_ | 1827601716931985408 |
|---|---|
| author | Sunxin Jiao Mingyang Li Meng Fan Zhongbin Li Benben Xu Jinhua Tao Liangfu Chen |
| author_facet | Sunxin Jiao Mingyang Li Meng Fan Zhongbin Li Benben Xu Jinhua Tao Liangfu Chen |
| author_sort | Sunxin Jiao |
| collection | DOAJ |
| description | Multi-angle polarization measurement is an important technical means of satellite remote sensing applied to aerosol monitoring. By adding angle information and polarization measurements, aerosol optical and microphysical properties can be more comprehensively and accurately retrieved. The accuracy of aerosol retrieval can reflect the advantages and specific accuracy improvement of multi-angle polarization. In this study, the Multi-angle Imaging SpectroRadiometer (MISR) V23 aerosol products and the Polarization and Directionality of the Earth’s Reflectance (POLDER) GRASP “high-precision” archive were evaluated with the Aerosol Robotic Network (AERONET) observations over China. Validation of aerosol optical depth (AOD), absorbing aerosol optical depth (AAOD), and the Ångström exponent (AE) properties was conducted. Our results show that the AOD inversion accuracy of POLDER-3/GRASP is higher with the correlation coefficient (<i>R</i>) of 0.902, slope of 0.896, root mean square error <i>(RMSE)</i> of 0.264, mean absolute error (<i>MAE</i>) of 0.190, and about 40.71% of retrievals within the expected error (<i>EE</i>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>±</mo><mo> </mo><mfenced><mrow><mn>0.05</mn><mo>+</mo><mn>0.2</mn><mo>×</mo><mi>A</mi><mi>O</mi><msub><mi>D</mi><mrow><mi>A</mi><mi>E</mi><mi>R</mi><mi>O</mi><mi>N</mi><mi>E</mi><mi>T</mi></mrow></msub></mrow></mfenced></mrow></semantics></math></inline-formula>) lines. For AAOD, the performance of two products is poor, with better results for POLDER-3/GRASP data. POLDER-3/GRASP AE also has higher <i>R</i> of 0.661 compared with that of MISR AE (0.334). According to the validation results, spatiotemporal distribution, and comparison with other traditional scalar satellite data, the performance of multi-angle polarization observations is better and is suitable for the retrieval of aerosol properties. |
| first_indexed | 2024-03-09T05:02:24Z |
| format | Article |
| id | doaj.art-c0ae0cb250aa46cd9c25d1782b4ded79 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T05:02:24Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-c0ae0cb250aa46cd9c25d1782b4ded792023-12-03T12:58:27ZengMDPI AGRemote Sensing2072-42922022-08-011415369710.3390/rs14153697Validation and Analysis of MISR and POLDER Aerosol Products over ChinaSunxin Jiao0Mingyang Li1Meng Fan2Zhongbin Li3Benben Xu4Jinhua Tao5Liangfu Chen6State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaMulti-angle polarization measurement is an important technical means of satellite remote sensing applied to aerosol monitoring. By adding angle information and polarization measurements, aerosol optical and microphysical properties can be more comprehensively and accurately retrieved. The accuracy of aerosol retrieval can reflect the advantages and specific accuracy improvement of multi-angle polarization. In this study, the Multi-angle Imaging SpectroRadiometer (MISR) V23 aerosol products and the Polarization and Directionality of the Earth’s Reflectance (POLDER) GRASP “high-precision” archive were evaluated with the Aerosol Robotic Network (AERONET) observations over China. Validation of aerosol optical depth (AOD), absorbing aerosol optical depth (AAOD), and the Ångström exponent (AE) properties was conducted. Our results show that the AOD inversion accuracy of POLDER-3/GRASP is higher with the correlation coefficient (<i>R</i>) of 0.902, slope of 0.896, root mean square error <i>(RMSE)</i> of 0.264, mean absolute error (<i>MAE</i>) of 0.190, and about 40.71% of retrievals within the expected error (<i>EE</i>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>±</mo><mo> </mo><mfenced><mrow><mn>0.05</mn><mo>+</mo><mn>0.2</mn><mo>×</mo><mi>A</mi><mi>O</mi><msub><mi>D</mi><mrow><mi>A</mi><mi>E</mi><mi>R</mi><mi>O</mi><mi>N</mi><mi>E</mi><mi>T</mi></mrow></msub></mrow></mfenced></mrow></semantics></math></inline-formula>) lines. For AAOD, the performance of two products is poor, with better results for POLDER-3/GRASP data. POLDER-3/GRASP AE also has higher <i>R</i> of 0.661 compared with that of MISR AE (0.334). According to the validation results, spatiotemporal distribution, and comparison with other traditional scalar satellite data, the performance of multi-angle polarization observations is better and is suitable for the retrieval of aerosol properties.https://www.mdpi.com/2072-4292/14/15/3697MISRPOLDER-3/GRASPaerosol optical depthabsorbing aerosol optical depthÅngström exponentmulti-angle polarization |
| spellingShingle | Sunxin Jiao Mingyang Li Meng Fan Zhongbin Li Benben Xu Jinhua Tao Liangfu Chen Validation and Analysis of MISR and POLDER Aerosol Products over China Remote Sensing MISR POLDER-3/GRASP aerosol optical depth absorbing aerosol optical depth Ångström exponent multi-angle polarization |
| title | Validation and Analysis of MISR and POLDER Aerosol Products over China |
| title_full | Validation and Analysis of MISR and POLDER Aerosol Products over China |
| title_fullStr | Validation and Analysis of MISR and POLDER Aerosol Products over China |
| title_full_unstemmed | Validation and Analysis of MISR and POLDER Aerosol Products over China |
| title_short | Validation and Analysis of MISR and POLDER Aerosol Products over China |
| title_sort | validation and analysis of misr and polder aerosol products over china |
| topic | MISR POLDER-3/GRASP aerosol optical depth absorbing aerosol optical depth Ångström exponent multi-angle polarization |
| url | https://www.mdpi.com/2072-4292/14/15/3697 |
| work_keys_str_mv | AT sunxinjiao validationandanalysisofmisrandpolderaerosolproductsoverchina AT mingyangli validationandanalysisofmisrandpolderaerosolproductsoverchina AT mengfan validationandanalysisofmisrandpolderaerosolproductsoverchina AT zhongbinli validationandanalysisofmisrandpolderaerosolproductsoverchina AT benbenxu validationandanalysisofmisrandpolderaerosolproductsoverchina AT jinhuatao validationandanalysisofmisrandpolderaerosolproductsoverchina AT liangfuchen validationandanalysisofmisrandpolderaerosolproductsoverchina |