open access

https://hdl.handle.net/2115/57022

Glacier mass balance in Asian high mountains : Reconsideration of satellite gravimetry estimates

日本語

GRACE gravity satellite

2014-01

日本雪氷学会

雪氷

76(1)

45-57

The advent of space geodetic satellites as represented by the gravimetry satellite GRACE and the laser altimetry satellite ICESat has enabled remote and continuous monitoring of the glacier mass balance in extensive areas of Asia high mountains. As of now, the glacier mass balance there has been estimated by Matsuo and Heki (2010) and Jacob et al. (2012) using GRACE gravity data. However, these two estimates are significantly different each other, i.e. the former suggests substantial ice loss of〜47Gt yr−1, and the latter does slight ice loss of〜11 Gt yr−1. In this article, we review these two studies and describe several important points to consider when studying Asian high mountains with GRACE. Then we re-estimate the glacier mass balance there using the latest GRACE data set (Release05) and the new inversion technique. We also review the latest reports based on the ICESat laser altimetry.

学術雑誌論文

Version of Record

0373-1006