ICESat range and mounting bias estimation over precisely‐surveyed terrain

Martin, C. F.; Thomas, Robert H.; Krabill, William B.; Manizade, S.

doi:10.1029/2005gl023800

Cited by 60 publications

(46 citation statements)

References 5 publications

(8 reference statements)

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“…GLA01 and GLA06 are the products used in this analysis. When fully calibrated, the global ICESat elevations are estimated to have an absolute accuracy of 2 to 7 cm and a precision of 2 to 3 cm at 40 Hz, tested over a variety of surfaces such as dry lakes and the Antarctic Dry Valleys Martin et al 2005;Magruder et al 2007). …”

Section: Icesat Datamentioning

confidence: 99%

A Survey of ICESat Coastal Altimetry Applications: Continental Coast, Open Ocean Island, and Inland River

Urban¹,

Schutz²,

Neuenschwander³

2008

Terr. Atmos. Ocean. Sci.

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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 performance and character of ICESat data in three example coastal scenarios: continental coast (Louisiana-Mississippi Gulf Coast, USA, including Lake Pontchartrain), open ocean island (Funafuti, Tuvalu), and an inland river (confluence of Tapajos and Amazon rivers, Brazil). Water elevations are compared to tide gauge heights and to TOPEX and Jason-1 radar altimetry. In demonstrating the utilization of ICESat, we also present examples of: laser waveform shapes over a variety of surface types (water, land, and vegetation); vegetation canopy heights (detecting large-scale destruction from Hurricane Katrina comparing data before and after); sub-canopy surface water; measurements of waves; and examination of along-stream river slope and comparisons of river stage to hydrologically-driven GRACE geoid change.

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Section: Icesat Datamentioning

confidence: 99%

A Survey of ICESat Coastal Altimetry Applications: Continental Coast, Open Ocean Island, and Inland River

Urban¹,

Schutz²,

Neuenschwander³

2008

Terr. Atmos. Ocean. Sci.

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“…Bhang et al [14] have demonstrated a difference between GLAS elevation and gauging stations between 2 and 35 cm for lakes in Otter Tail County, Minnesota (USA). Other studies have demonstrated that the accuracy of ICESat is greater than 10 cm, compared to gauge data [12,15,16]. However, the quality of ICESat data for rivers has not been thoroughly investigated.…”

Section: Introductionmentioning

confidence: 99%

The Relevance of GLAS/ICESat Elevation Data for the Monitoring of River Networks

Baghdadi¹,

Lemarquand²,

Abdallah³

et al. 2011

Remote Sensing

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Abstract:The Ice, Cloud and Land Elevation Satellite (ICESat) laser altimetry mission from 2003 to 2008 provided an important dataset for elevation measurements. The quality of GLAS/ICESat (Geoscience Laser Altimeter System) data was investigated for Lake Leman in Switzerland and France by comparing laser data to hydrological gauge water levels. The correction of GLAS/ICESat waveform saturation successfully improved the quality of water elevation data. First, the ICESat elevations and waveforms corresponding to water footprints across the transition from the land to water were analyzed. Water elevations (2 to 10 measurements) following the land-water transition are often of lesser quality. The computed accuracy for the ICESat elevation measurements is approximately 5 cm, excluding transitions footprints, and 15 cm, including these footprints. Second, the accuracy of ICESat elevation was studied using data acquired on French rivers with a width greater than the size of the ICESat footprint. The obtained root mean square error (RMSE) for ICESat elevations in regard to French rivers was 1.14 m (bias = 0.07 m; standard deviation = 1.15 m), which indicates that small rivers could not be monitored using ICESat with acceptable accuracy due to land-water transition sensor inertia.

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“…A 2 • slope, combined with the 1 arcsec positioning error results in an elevation error of 10 cm (Martin et al, 2005). Based on the new DEM presented here, the slopes at Halvfarryggen and Søråsen were calculated for 1 km × 1 km grid cells.…”

Section: Satellite Laser Altimetrymentioning

confidence: 99%

Precise surface topography of the grounded ice ridges at the Ekströmisen, Antarctica, based on several geophysical data sets

Wesche

Riedel

Steinhage

2009

ISPRS Journal of Photogrammetry and Remote Sensing

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ICESat range and mounting bias estimation over precisely‐surveyed terrain

Cited by 60 publications

References 5 publications

A Survey of ICESat Coastal Altimetry Applications: Continental Coast, Open Ocean Island, and Inland River

A Survey of ICESat Coastal Altimetry Applications: Continental Coast, Open Ocean Island, and Inland River

The Relevance of GLAS/ICESat Elevation Data for the Monitoring of River Networks

Precise surface topography of the grounded ice ridges at the Ekströmisen, Antarctica, based on several geophysical data sets

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