Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/43759
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Land Surveying and Geo-Informatics | en_US |
dc.creator | Bilal, M | en_US |
dc.creator | Nichol, JE | en_US |
dc.date.accessioned | 2016-06-07T06:23:13Z | - |
dc.date.available | 2016-06-07T06:23:13Z | - |
dc.identifier.issn | 2169-897X | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/43759 | - |
dc.language.iso | en | en_US |
dc.publisher | Wiley-Blackwell | en_US |
dc.rights | ©2015. American Geophysical Union. All Rights Reserved. | en_US |
dc.subject | AERONET | en_US |
dc.subject | AOD | en_US |
dc.subject | Beijing | en_US |
dc.subject | Fine particles | en_US |
dc.subject | MYD04 C6 | en_US |
dc.subject | SARA | en_US |
dc.title | Evaluation of MODIS aerosol retrieval algorithms over the Beijing-Tianjin-Hebei region during low to very high pollution events | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 7941 | en_US |
dc.identifier.epage | 7957 | en_US |
dc.identifier.volume | 120 | en_US |
dc.identifier.issue | 15 | en_US |
dc.identifier.doi | 10.1002/2015JD023082 | en_US |
dcterms.abstract | This study evaluates the performance of different MODerate resolution Imaging Spectroradiometer (MODIS) aerosol algorithms during fine particle pollution events over the Beijing-Tianjin-Hebei region using Aerosol Robotic Network aerosol optical depth (AOD). These algorithms include the Deep Blue (DB) Collection 5.1 (C5) and Collection 6 (C6) algorithms at 10 km resolution, the Dark Target (DT) C5 and C6 algorithms at 10 km, the DT C6 algorithm at 3 km, and the Simplified Aerosol Retrieval Algorithm (SARA) at 500 m, 3 km, and 10 km resolutions. The DB C6 retrievals have 34-39% less uncertainties, 2-3 times smaller root-mean-square error (RMSE), and 3-4 times smaller mean absolute error (MAE) than DB C5 retrievals. The DT C6 has 4-8% lower bias, 4-12% less overestimation, and smaller RMSE and MAE errors than DT C5. Due to underestimation of surface reflectance and the use of inappropriate aerosol schemes, 87-89% of the collocations of the DT C6 at 3 km fall above the expected error (EE), with overestimation of 64-79% which is 15-27% higher than that for the DT C6 at 10 km. The results suggest that the DT C6 at 3 km resolution is less reliable than that at 10 km. The SARA AOD has small RMSE and MAE errors with 90-96% of the collocations falling within the EE. Overall, the SARA showed 15-16% less uncertainty than the DB C6 (10 km), 69-72% less than the DT C6 (10 km), and 79-83% less than the DT C6 (3 km) retrievals. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of geophysical research. Atmospheres, 2015, v. 120, no. 15, p. 7941-7957 | en_US |
dcterms.isPartOf | Journal of geophysical research. Atmospheres | en_US |
dcterms.issued | 2015-08-16 | - |
dc.identifier.scopus | 2-s2.0-84940416642 | - |
dc.identifier.eissn | 2169-8996 | en_US |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | RGC-B3-1169 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.pubStatus | Published | en_US |
dc.description.oaCategory | VoR allowed | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Bilal_Evaluation_MODIS_Aerosol.pdf | 5.2 MB | Adobe PDF | View/Open |
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