NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A Super-Resolution Laser Altimetry ConceptA super-resolution laser altimetry technique has been proposed to provide improved lidar altimetry from Cloud Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) lidar data, and it is applicable to other similar atmospheric profiling lidar with low-pass filters. To achieve high altimetry resolution, the new technique relies on an empirical relationship between the peak signal ratio and the distance between land surface and the peak signal range bin center, which is directly derived from the CALIPSO lidar measurements and does not require the CALIPSO's transient response. The CALIPSO surface elevation results in Northern America retrieved by the new technique agree with the National Elevation Database high resolution elevation maps, and the comparisons suggest that the precision of the technique is much better than 1.4 m. The preliminary data product of land surface elevation retrieved by the new technique from CALIPSO lidar measurements is available to the altimetry community for evaluation.
Document ID
20140006029
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
Authors
Lu, Xiaomei
(NASA Langley Research Center Hampton, VA, United States)
Hu, Yongxiang
(NASA Langley Research Center Hampton, VA, United States)
Trepte, Charles
(NASA Langley Research Center Hampton, VA, United States)
Liu, Zhaoyan
(Science Systems and Applications, Inc. Hampton, VA, United States)
Date Acquired
May 22, 2014
Publication Date
January 1, 2014
Publication Information
Publication: IEEE Geoscience and Remote Sensing Letters
Volume: 11
Issue: 1
Subject Category
Geosciences (General)
Report/Patent Number
NF1676L-16707
Funding Number(s)
WBS: WBS 437949.02.02.01.20
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available