Spatial distribution of net surface mass balance on Greenland

Surface mass-balance changes of the Greenland ice sheet

Mass loss from the Greenland ice sheet over the past decade has caused the impression that the ice sheet has been behaving anomalously to the warming of the 1990s. We have reconstructed the recent (1866–2005) surface mass-balance (SMB) history of the Greenland ice sheet on a 5 5 km grid using a runoff-retention model based on the positive degree-day method. The model is forced with new datasets...

Greenland mass balance from GRACE

[1] We use 22 monthly GRACE (Gravity Recovery and Climate Experiment) gravity fields to estimate the linear trend in Greenland ice mass during 2002–2004. We recover a decrease in total ice mass of 82 ± 28 km of ice per year, consistent with estimates from other techniques. Our uncertainty estimate is dominated by the effects of GRACE measurement errors and errors in our post glacial rebound (PG...

High-resolution simulations of the surface mass balance of Greenland at the end of this century

Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Printer-friendly Version Interactive Discussion EGU Abstract We present atmospheric general circulation model simulations of the present (1981– 2005) and future (2081–2100) climate according to the SRES A1B green...

Estimation of the Greenland ice sheet surface mass balance during 20th and 21st centuries

Interannual variability in net accumulation on the Greenland Ice Sheet Observations and implications for mass balance measurements

Nine 24-year accumulation records from the Summit region in central Greenland are analyzed to separate the effects of spatial noise and interannual f uctuations on the variability in each core. The study shows that both processes are equally important, with standard eviations of 25 mm water equivalent per year and 24 mm water equivalent per year, respectively. A comparison with estimates of sur...