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Record #199305:
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MARC recordASTER GDEM validation using LiDAR data over coastal regions of Greenland / Sine Munk Hvidegaard, Louise Sandberg Sørensen, René Forsberg.
| Title: | ASTER GDEM validation using LiDAR data over coastal regions of Greenland / Sine Munk Hvidegaard, Louise Sandberg Sørensen, René Forsberg. |
| Author(s): | Hvidegaard, Sine Munk. Sørensen, Louise Sandberg. Forsberg, René. |
| Date: | 2012. |
| In: | Remote Sensing Letters. (2012.), Vol. 3(1) (2012) |
| Abstract: | Uses LiDAR data from airborne campaigns over period 2003-2008 to assess accuracy of ASTER GDEM in Greenland. LiDAR elevation data have resolution and accuracy around 1 m and 20-30 cm RMSE. Study areas include ice-free regions, local ice caps, and ice sheet margin. Derives linear error of 15-65 m, far greater than 20-m ASTER GDEM product specification, and mean difference (bias) of 10-20 m. Estimation is biased by both seasonal and climatic changes in local ice caps over period 2000-2009 spanned by imagery. Steep slopes in coastal regions, and number of scenes use to generate ASTER GDEM are also factors. Discusses sources of data to improve GDEM, which remains most accurate available at very high spatial resolution. |
| Notes: | Remote Sensing Letters. Vol. 3(1) :85-91 (2012). |
| Keywords: | 551.32 -- Glaciology. 53.087.23 -- Remote sensing. 528 -- Geodesy. 528.9 -- Cartography. 519.673 -- Modelling. 528.37 -- Surveying, levelling. 551.324.24 -- Ice sheets and caps: Greenland ice sheet. 551.321 -- Glaciological methods and instruments. 551.324.63 -- Land ice, advance and retreat. 551.583 -- Climatic changes. 551.417 -- Coasts and beaches. E5 -- Glaciology: land ice. (*38) -- Greenland. |
| SPRI record no.: | 199305 |
LDR 02158naa#a2200000#a#4500 001 SPRI-199305 005 20240419024516.0 007 ta 008 240419s2012####xx#ab#|##|###|0||#0|eng#d 035 ## ‡aSPRI-199305 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aHvidegaard, Sine Munk. 245 10 ‡aASTER GDEM validation using LiDAR data over coastal regions of Greenland /‡cSine Munk Hvidegaard, Louise Sandberg Sørensen, René Forsberg. 260 ## ‡a[S.l.] :‡b[s.n.],‡c2012. 300 ## ‡ap. 85-91 :‡bill., diags., table, maps. 500 ## ‡aRemote Sensing Letters. Vol. 3(1) :85-91 (2012). 520 3# ‡aUses LiDAR data from airborne campaigns over period 2003-2008 to assess accuracy of ASTER GDEM in Greenland. LiDAR elevation data have resolution and accuracy around 1 m and 20-30 cm RMSE. Study areas include ice-free regions, local ice caps, and ice sheet margin. Derives linear error of 15-65 m, far greater than 20-m ASTER GDEM product specification, and mean difference (bias) of 10-20 m. Estimation is biased by both seasonal and climatic changes in local ice caps over period 2000-2009 spanned by imagery. Steep slopes in coastal regions, and number of scenes use to generate ASTER GDEM are also factors. Discusses sources of data to improve GDEM, which remains most accurate available at very high spatial resolution. 530 ## ‡aAlso issued online ‡uurn:doi:10.1080/01431161.2010.527389‡uhttps://dx.doi.org/10.1080/01431161.2010.527389 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a53.087.23 -- Remote sensing.‡2udc 650 07 ‡a528 -- Geodesy.‡2udc 650 07 ‡a528.9 -- Cartography.‡2udc 650 07 ‡a519.673 -- Modelling.‡2udc 650 07 ‡a528.37 -- Surveying, levelling.‡2udc 650 07 ‡a551.324.24 -- Ice sheets and caps: Greenland ice sheet.‡2udc 650 07 ‡a551.321 -- Glaciological methods and instruments.‡2udc 650 07 ‡a551.324.63 -- Land ice, advance and retreat.‡2udc 650 07 ‡a551.583 -- Climatic changes.‡2udc 650 07 ‡a551.417 -- Coasts and beaches.‡2udc 650 07 ‡aE5 -- Glaciology: land ice.‡2local 651 #7 ‡a(*38) -- Greenland.‡2udc 700 1# ‡aSørensen, Louise Sandberg. 700 1# ‡aForsberg, René. 773 0# ‡7nnas ‡tRemote Sensing Letters. ‡gVol. 3(1) (2012) ‡wSPRI-195226 916 ## ‡a2011/08/04 -- RF 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240419 ‡bRF