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Cited by 498

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Remote sensing of aerosols over land surfaces from POLDER‐ADEOS‐1 polarized measurements

Open access
Deuzé, J. L., Bréon, F. M., Devaux, C., Goloub, P., Herman, M., Lafrance, B., Maignan, F., Marchand, A., Nadal, F., Perry, G., Tanré, D.·2001·Journal of Geophysical Research: Atmospheres

Abstract

The polarization measurements achieved by the POLDER instrument on ADEOS‐1 are used for the remote sensing of aerosols over land surfaces. The key advantage of using polarized observations is their ability to systematically correct for the ground contribution, whereas the classical approach using natural light fails. The estimation of land surface polarizing properties from POLDER has been examined in a previous paper. Here we consider how the optical thickness δ 0 and Ångstrom exponent α of aerosols are derived from the polarized light backscattered by the particles. The inversion scheme is detailed, and illustrative results are presented. Maps of the retrieved optical thickness allow for detection of large aerosol features, and in the case of small aerosols, the δ 0 and α retrievals are consistent with correlative ground‐based measurements. However, because polarized light stems mainly from small particles, the results are biased for aerosol distributions containing coarser modes of particles. To overcome this limitation, an aerosol index defined as the product AI = δ 0 α is proposed. Theoretical analysis and comparison with ground‐based measurements suggest that AI is approximately the same when using δ 0, and α is related to the entire aerosol size distribution or derived from the polarized light originating from the small polarizing particles alone. This invariance is specially assessed by testing the continuity of AI across coastlines, given the unbiased properties of aerosol retrieval over ocean. Although reducing the information concerning the aerosols, this single parameter allows a link between the POLDER aerosol surveys over land and ocean. POLDER aerosol index global maps enable the monitoring of major aerosol sources over continental areas.

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Crossref · 10.1029/2000jd900364

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Metadata

Authors
Deuzé, J. L., Bréon, F. M., Devaux, C., Goloub, P., Herman, M., Lafrance, B., Maignan, F., Marchand, A., Nadal, F., Perry, G., & Tanré, D.
Venue
Journal of Geophysical Research: Atmospheres
Published
2001-03
Volume
106
Issue
D5
Pages
4913-4926
ISSN
0148-0227 (ISSN-L)
OpenAlex
W2165332166
Cited by
498
References
31
FWCI
15.52
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Remote sensing of aerosols over land surfaces from POLDER‐ADEOS‐1 polarized measurements. https://app.cochat.ai/papers/10.1029/2000jd900364
The paper
Deuzé, J. L., Bréon, F. M., Devaux, C., Goloub, P., Herman, M., Lafrance, B., Maignan, F., Marchand, A., Nadal, F., Perry, G., & Tanré, D. (2001). Remote sensing of aerosols over land surfaces from POLDER‐ADEOS‐1 polarized measurements. Journal of Geophysical Research: Atmospheres. https://doi.org/10.1029/2000jd900364

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