1 Lecture 8. Applications of passive remote sensing using extinction and scattering: Remote sensing of aerosol in the visible and near-IR. 1. Principles of aerosol retrievals. 2. Examples: aerosol retrievals from MODIS and MISR. Additional reading: Kaufman, Y.J., et al., A satellite view of aerosols in the climate system. Nature 419, 215-223 (12 September 2002), doi:10.1038/nature01091 MODIS website: MISR website: http://www-misr.jpl.nasa.gov/ Advanced reading: (“must read” for students who use MODIS or MISR aerosol products in their class project) Remer et al. 2006: Algorithm for Remote Sensing of Tropospheric Aerosol from MODIS for Collection 005. http://modis-atmos.gsfc.nasa.gov/_docs/MOD04-MYD04_ATBD_C005.pdf MISR Level 2 aerosol retrieval algorithm theoretical basis http://eospso.gsfc.nasa.gov/eos_homepage/for_scientists/atbd/docs/MISR/atbd-misr- 09.pdf 1. Principles of aerosol retrievals from space. Recall the single scattering approximation derived in Lecture 7 which is valid over dark surfaces (i.e., no surface reflectance) and for small optical depth µ τ π ω ϕ µ ) ( 4 ) , , 0 ( 0 0 Θ = ↑ P F I This equation can be expressed in terms of reflectance observed by a satellite sensor 0 0 ) ( 4 ) , , 0 ( µµ τ ω ϕ µ Θ = P R [8.1] where the reflectance is defined here as
12
Embed
Lecture8 - irina.eas.gatech.eduirina.eas.gatech.edu/EAS_Fall2008/Lecture8.pdf · Title: Microsoft Word - Lecture8 Author: Slava Created Date: 9/30/2008 9:30:17 AM
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
1
Lecture 8.
Applications of passive remote sensing using extinction and scattering:
Remote sensing of aerosol in the visible and near-IR. 1. Principles of aerosol retrievals.
2. Examples: aerosol retrievals from MODIS and MISR.
Additional reading:
Kaufman, Y.J., et al., A satellite view of aerosols in the climate system.
Nature 419, 215-223 (12 September 2002), doi:10.1038/nature01091
MODIS website:
MISR website: http://www-misr.jpl.nasa.gov/
Advanced reading:
(“must read” for students who use MODIS or MISR aerosol products in their class
project)
Remer et al. 2006: Algorithm for Remote Sensing of Tropospheric Aerosol from MODIS