Balance velocities of the Greenland ice sheet

I. Joughin, M. Fahnestock, Simon Ekholm, R. Kwok

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We present a map of balance velocities for the Greenland ice sheet. The resolution of the underlying DEM, which was derived primarily from radar altimetery data, yields far greater detail than earlier balance velocity estimates for Greenland. The velocity contours reveal in striking detail the location of an ice stream in northeastern Greenland, which was only recently discovered using satellite imagery. Enhanced how associated with all of the major outlets is clearly visible, although small errors in the source data result in less accurate estimates of the absolute flow speeds. Nevertheless, the balance map is useful for ice-sheet modelling, mass balance studies, and field planning.
Original languageEnglish
JournalGeophysical Research Letters
Volume24
Issue number23
Pages (from-to)3045-3048
ISSN0094-8276
Publication statusPublished - 1997

Cite this

Joughin, I., Fahnestock, M., Ekholm, S., & Kwok, R. (1997). Balance velocities of the Greenland ice sheet. Geophysical Research Letters, 24(23), 3045-3048.
Joughin, I. ; Fahnestock, M. ; Ekholm, Simon ; Kwok, R. / Balance velocities of the Greenland ice sheet. In: Geophysical Research Letters. 1997 ; Vol. 24, No. 23. pp. 3045-3048.
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Joughin, I, Fahnestock, M, Ekholm, S & Kwok, R 1997, 'Balance velocities of the Greenland ice sheet', Geophysical Research Letters, vol. 24, no. 23, pp. 3045-3048.

Balance velocities of the Greenland ice sheet. / Joughin, I.; Fahnestock, M.; Ekholm, Simon; Kwok, R.

In: Geophysical Research Letters, Vol. 24, No. 23, 1997, p. 3045-3048.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Balance velocities of the Greenland ice sheet

AU - Joughin, I.

AU - Fahnestock, M.

AU - Ekholm, Simon

AU - Kwok, R.

PY - 1997

Y1 - 1997

N2 - We present a map of balance velocities for the Greenland ice sheet. The resolution of the underlying DEM, which was derived primarily from radar altimetery data, yields far greater detail than earlier balance velocity estimates for Greenland. The velocity contours reveal in striking detail the location of an ice stream in northeastern Greenland, which was only recently discovered using satellite imagery. Enhanced how associated with all of the major outlets is clearly visible, although small errors in the source data result in less accurate estimates of the absolute flow speeds. Nevertheless, the balance map is useful for ice-sheet modelling, mass balance studies, and field planning.

AB - We present a map of balance velocities for the Greenland ice sheet. The resolution of the underlying DEM, which was derived primarily from radar altimetery data, yields far greater detail than earlier balance velocity estimates for Greenland. The velocity contours reveal in striking detail the location of an ice stream in northeastern Greenland, which was only recently discovered using satellite imagery. Enhanced how associated with all of the major outlets is clearly visible, although small errors in the source data result in less accurate estimates of the absolute flow speeds. Nevertheless, the balance map is useful for ice-sheet modelling, mass balance studies, and field planning.

M3 - Journal article

VL - 24

SP - 3045

EP - 3048

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 23

ER -

Joughin I, Fahnestock M, Ekholm S, Kwok R. Balance velocities of the Greenland ice sheet. Geophysical Research Letters. 1997;24(23):3045-3048.