ICESat satellite laser altimetry provides an unprecedented set of global elevation measurements of the Earth, yielding great detail over ice, land and ocean surfaces. Coastal regions in particular, including seamless land-water transitions, benefit from the small footprint (50 to 90 m), high resolution (40 Hz, ~170 m along-track), and high precision (2 to 3 cm) of ICESat. We discuss the perform...

The Ice, Cloud and land Elevation Satellite (ICESat) in its 8 day repeat orbit mode provided data not only on the along-track surface slope, but also on the cross-track surface slope from adjacent repeat ground tracks. During the first 36 days of operation, four to five such repeat orbits occurred within 1 km in the cross-track direction. This provided an opportunity to use ICESat data to measu...

-We are developing a laser radar (lidar) altimeter that uses commercial off-the-shelf fiber-optic components and traditional RF and digital signal processing techniques to achieve fine-range accuracy despite a low transmit peak power. A 1550-nm operating wavelength was selected so that available erbium-doped fiber amplifiers (EDFAs) could be used to provide optical gain. The transmitted signal,...

Incorporating vertical vegetation structure into models of animal distributions can improve understanding of the patterns and processes governing habitat selection. LiDAR can provide such structural information, but these data are typically collected via aircraft and thus are limited in spatial extent. Our objective was to explore the utility of satellite-based LiDAR data from the Geoscience La...

[1] Here we use Ice, Cloud and land Elevation Satellite (ICESat)-derived elevations and surface characteristics to investigate the Malaspina Glacier of southern Alaska. Although there is significant elevation variability between ICESat tracks on this glacier, we were able to discern general patterns in surface elevation change by using a regional digital elevation model (DEM) as a reference sur...

Traditional glaciological mass balance measurements of mountain glaciers are a demanding and cost intensive task. In this study, we combine data from the Ice Cloud and Elevation Satellite (ICESat) acquired between 2003 and 2009 with air and space borne Digital Elevation Models (DEMs) in order to derive surface elevation changes of the Grosser Aletschgletscher in the Swiss Alps. Three different ...

Satellite optical images and altimetry data are two major data sources used in Antarctic research. The integration use of these two datasets is expected to provide more accurate and higher quality products, during which data registration is the first issue that needs to be solved. This paper presents an alternative approach for the registration of high-resolution satellite optical images and IC...

Chen Phoon Ping, MBBS, FANZCA, FFPMANZCA, FHKCA, FHKAM, Dip Pain Mgt; Josephine WY Ip, MBBS, MS, FRCS (Ed), FHKAM (Ortho), Dip Hand Surg (FESSH); Joseph MK Lam, MBChB, FRCS (Edin), FCSHK, FHKAM (Surg); Vincent Mok, MBBS, FHKAM (Med), FRCP (Edin), MD (CUHK); Tsoi Tak Hong, MBBS, MRCP, FRCP (Edin), FRCP (Glas), FHKCP, FHKAM (Med); Wong Chun Por, MBBS, FHKAM (Med), FRCP (Lond), FRCP (Glas), FHKCP;...

The Multidisciplinary Panel on Neuropathic Pain Chen Phoon Ping, MBBS, FANZCA, FFPMANZCA, FHKCA, FHKAM, Dip Pain Mgt; Josephine WY Ip, MBBS, MS, FRCS (Ed), FHKAM (Ortho), Dip Hand Surg (FESSH); Joseph MK Lam, MBChB, FRCS (Edin), FCSHK, FHKAM (Surg); Vincent Mok, MBBS, FHKAM (Med), FRCP (Edin), MD (CUHK); Tsoi Tak Hong, MBBS, MRCP, FRCP (Edin), FRCP (Glas), FHKCP, FHKAM (Med); Wong Chun Por, MBB...