Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | NE/S006745/1 |
NSFPLR-NERC: Processes, drivers, predictions: Modeling the response of Thwaites Glacier over the next century using ice/ocean coupled models | |
G. Hilmar Gudmundsson | |
主持机构 | Northumbria University |
项目开始年 | 2018 |
2018-09-01 | |
项目结束日期 | 2023-08-31 |
资助机构 | UK-NERC |
项目类别 | Research Grant |
项目经费 | 613414(GBP) |
国家 | 英国 |
语种 | 英语 |
英文摘要 | We propose to conduct coupled ice-ocean numerical simulations of Thwaites Glacier (TG) to predict its future contribution to global sea level change, and to provide both statistical and structural error estimates using three state-of-the-art ice flow numerical ice-flow models (ISSM, Úa and STREAMICE) coupled with the ocean model MITgcm. We will implement and improve the representation of several key physical processes (calving, ice damage, mechanical basal conditions) that have either not been included, or poorly represented in previous ice-flow modelling work. We will quantify the relative role of different proposed external drivers of change (e.g., ocean-induced ice-shelf thinning, loss of ice-shelf pinning points), and explore systematically the stability regime of TG with the aim of identifying internal thresholds separating stable and unstable grounding line retreats. Using inverse methodology, we will produce new physically consistent high-resolution (300 m) data sets on ice-thicknesses from available radar measurements. Furthermore, we will generate several new remote sensing data sets on ice velocities and rates of elevation change. These will be used to constrain and validate our numerical models, and will also be highly valuable as stand-alone data sets. |
来源学科分类 | Natural Environment Research |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/87346 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | G. Hilmar Gudmundsson.NSFPLR-NERC: Processes, drivers, predictions: Modeling the response of Thwaites Glacier over the next century using ice/ocean coupled models.2018. |
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