Spatial and seasonal variations of MODIS aerosol optical depth in East China during 2000-2012

Tianyong Zhai; Qing Zhao; Runhe Shi; Wei Gao

doi:10.1117/12.2021853

24 September 2013 Spatial and seasonal variations of MODIS aerosol optical depth in East China during 2000-2012

Tianyong Zhai, Qing Zhao, Runhe Shi, Wei Gao

Proceedings Volume 8869, Remote Sensing and Modeling of Ecosystems for Sustainability X; 886914 (2013) https://doi.org/10.1117/12.2021853
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

This study compares the aerosol optical depth (AOD) at 0.55 um derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the National Aeronautics and Space Administration (NASA) Terra satellite with the Level 2.0 AOD (Quality Assured) from the Aerosol Robotic Network (AERONET) at four different locations over East China, including Hefei, Shouxian, Taihu, and Hangzhou-ZFU. The evaluation results indicate that most MODIS data from all sites fall into the expected error ranges (± 0.05 ± 0.15), with over a 66% probability that the NASA design requirements have been met. The Taihu station is an exception, accounting for only 41% of expected errors due to its lake area location and tendency to underestimate surface reflectance, thereby increasing the AOD values. Overall, the MODIS data show a good consistency and thus, are applicable for this analysis over the study area. The MODIS/Terra derived AOD at 0.55 um from 2000 to 2012 are used to analyze the spatio-temporal variation of AOD in East China. Results indicate that AODs are significantly affected by the topographic distribution. The AODs are relativity low over mountainous areas and high over plains and basins. Human activities also have a certain impact on the distribution of AOD. In addition, AODs exhibit clear seasonal variations; generally high in spring and summer, but low in autumn and winter. Combined with Angstrom exponent, aerosol particles are mainly coarse in spring and winter, but fine during summer and autumn.

Citation Download Citation

Tianyong Zhai, Qing Zhao, Runhe Shi, and Wei Gao "Spatial and seasonal variations of MODIS aerosol optical depth in East China during 2000-2012", Proc. SPIE 8869, Remote Sensing and Modeling of Ecosystems for Sustainability X, 886914 (24 September 2013); https://doi.org/10.1117/12.2021853

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Aerosols

MODIS

Atmospheric particles

Adaptive optics

Satellites

Error analysis

Reflectivity

Show All Keywords

Keywords/Phrases

Search In:

Publication Years