Record Details

Record 1 of 1
Analysis of Fine-Mode Aerosol Retrieval Capabilities by Different Passive Remote Sensing Instrument Designs
Author and Affiliation:
Knobelspiesse, Kirk(Columbia Univ., New York, NY, United States);
Cairns, Brian(NASA Goddard Inst. for Space Studies, New York, NY, United States);
Mishchenko, Michael(NASA Goddard Inst. for Space Studies, New York, NY, United States);
Chowdhary, Jacek(Columbia Univ., New York, NY, United States);
Tsigaridis, Kostas(Columbia Univ., New York, NY, United States);
van Diedenhoven, Bastiaan(Columbia Univ., New York, NY, United States);
Martin, William(Columbia Univ., New York, NY, United States);
Ottaviani, Matteo(Stevens Inst. of Tech., Hoboken, NJ, United States);
Alexandrov, Mikhail(Columbia Univ., New York, NY, United States)
Abstract: Remote sensing of aerosol optical properties is difficult, but multi-angle, multi-spectral, polarimetric instruments have the potential to retrieve sufficient information about aerosols that they can be used to improve global climate models. However, the complexity of these instruments means that it is difficult to intuitively understand the relationship between instrument design and retrieval success. We apply a Bayesian statistical technique that relates instrument characteristics to the information contained in an observation. Using realistic simulations of fine size mode dominated spherical aerosols, we investigate three instrument designs. Two of these represent instruments currently in orbit: the Multiangle Imaging SpectroRadiometer (MISR) and the POLarization and Directionality of the Earths Reflectances (POLDER). The third is the Aerosol Polarimetry Sensor (APS), which failed to reach orbit during recent launch, but represents a viable design for future instruments. The results show fundamental differences between the three, and offer suggestions for future instrument design and the optimal retrieval strategy for current instruments. Generally, our results agree with previous validation efforts of POLDER and airborne prototypes of APS, but show that the MISR aerosol optical thickness uncertainty characterization is possibly underestimated.
Publication Date: Sep 04, 2012
Document ID:
20120015701
(Acquired Nov 16, 2012)
Subject Category: OPTICS
Report/Patent Number: GSFC.JA.7129.2012
Document Type: Journal Article
Publication Information: Optics Express; Volume 20; No. 19; 21457-21484
Publisher Information: Optical Society of America, Washington, DC, United States
Contract/Grant/Task Num: NNX10AN85H
Financial Sponsor: NASA Goddard Inst. for Space Studies; New York, NY, United States
Organization Source: NASA Goddard Inst. for Space Studies; New York, NY, United States
Description: 28p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AEROSOLS; BAYES THEOREM; CLIMATE MODELS; CLIMATOLOGY; MISR (RADIOMETRY); OPTICAL PROPERTIES; OPTICAL THICKNESS; REMOTE SENSING; SIMULATION
Availability Source: Other Sources
› Back to Top
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed
Find Similar Records
 
NASA Logo, External Link

NASA Official: Gerald Steeman
Sponsored By: NASA Scientific and Technical Information Program
Site Curator: NASA Center for AeroSpace Information (CASI)
Last Modified: November 16, 2012

Privacy Policy & Important Notices Disclaimers, Copyright, Terms of Use Freedom of Information Act USA.gov NASA.gov NASA OCIO Free Adobe PDF Reader Free MS Word Viewer