NDLI: Spatiotemporal interpolation of elevation changes derived from satellite altimetry for jakobshavn isbrae, greenland

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Spatiotemporal interpolation of elevation changes derived from satellite altimetry for jakobshavn isbrae, greenland

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bamber, J. L. Krabill, W. B. Davis, C. H. Sorensen, L. S. Hurkmans, R. T. W. L. Joughin, I. R.
Copyright Year	2012
Description	Estimation of ice sheet mass balance from satellite altimetry requires interpolation of point-scale elevation change (dHdt) data over the area of interest. The largest dHdt values occur over narrow, fast-flowing outlet glaciers, where data coverage of current satellite altimetry is poorest. In those areas, straightforward interpolation of data is unlikely to reflect the true patterns of dHdt. Here, four interpolation methods are compared and evaluated over Jakobshavn Isbr, an outlet glacier for which widespread airborne validation data are available from NASAs Airborne Topographic Mapper (ATM). The four methods are ordinary kriging (OK), kriging with external drift (KED), where the spatial pattern of surface velocity is used as a proxy for that of dHdt, and their spatiotemporal equivalents (ST-OK and ST-KED).
File Size	4761369
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20140008937
Archival Resource Key	ark:/13960/t79s6rj9b
Language	English
Publisher Date	2012-09-01
Access Restriction	Open
Subject Keyword	Jakobshavn Isbrae Mass Balance Airborne Topographic Mapper (atm) Interpolation Airborne Equipment Elevation Satellite Altimetry Covariance Topography Mass Distribution Ice Glaciers Remote Sensing Kriging Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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