Conference proceeding
Initial Validation and Results of Geoscience Laser Altimeter System Optical Properties Retrievals
IGARSS 2004 : 2004 IEEE International Geoscience and Remote Sensing Symposium : proceedings : Science for society: exploring and managing a changing planet, pp.672-675
01/01/2004
DOI: 10.1109/IGARSS.2004.1369119
Abstract
Verification of Geoscience Laser Altimeter System (GLAS) optical retrievals is . problematic in that passage over ground sites is both instantaneous and sparse plus space-borne passive sensors such as MODIS are too frequently out of sync with the GLAS position. In October 2003, the GLAS Validation Experiment was executed from NASA Dryden Research Center, California to greatly increase validation possibilities. The high-altitude NASA ER-2 aircraft and onboard instrumentation of Cloud Physics Lidar (CPL), MODIS Airborne Simulator (MAS), and/or MODIS/ASTER Airborne Simulator (MASTER) under-flew seven orbit tracks of GLAS for cirrus, smoke, and urban pollution optical properties inter-comparisons. These highly calibrated suite of instruments are the best data set yet to validate GLAS atmospheric parameters. In this presentation, we will focus on the inter-comparison with GLAS and CPL and draw preliminary conclusions about the accuracies of the GLAS 532nm retrievals of optical depth, extinction, backscatter cross section, and calculated extinction-to-backscatter ratio. Comparisons to an AERONET/MPL ground-based site at Monterey, California will be attempted. Examples of GLAS operational optical data products will be shown.
Details
- Title: Subtitle
- Initial Validation and Results of Geoscience Laser Altimeter System Optical Properties Retrievals
- Creators
- Dennis L. Hlavka - Science Systems and Applications (United States)W. D. Hart - Science Systems and Applications (United States)S. P. Pal - Science Systems and Applications (United States)M. McGill - Goddard Space Flight CenterJ. D. Spinhirne - Goddard Space Flight Center
- Resource Type
- Conference proceeding
- Publication Details
- IGARSS 2004 : 2004 IEEE International Geoscience and Remote Sensing Symposium : proceedings : Science for society: exploring and managing a changing planet, pp.672-675
- DOI
- 10.1109/IGARSS.2004.1369119
- Publisher
- IEEE
- Language
- English
- Date published
- 01/01/2004
- Description audience
- PUBLIC
- Academic Unit
- Physics and Astronomy; Chemical and Biochemical Engineering
- Record Identifier
- 9984276455302771
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