Study on Annual Signals of Greenland Ice Sheet Mass and Associated Influencing Factors Based on GRACE/GRACE-FO Data

被引：0

作者：

Ma, Kaifeng ^{[1
]}

Han, Jing ^{[1
]}

Li, Zhen ^{[1
]}

Meng, Junzhen ^{[1
]}

Hu, Qingfeng ^{[1
]}

He, Peipei ^{[1
]}

Yao, Changxu ^{[1
]}

机构：

[1] North China Univ Water Resources & Elect Power, Coll Surveying & Geo Informat, Zhengzhou 450046, Peoples R China

来源：

LAND | 2025年 / 14卷 / 04期

基金：

中国国家自然科学基金; 河南省科学基金;

关键词：

GrIS; GRACE/GRACE-FO; mass change; driving factors; lagging; TIME-SERIES; GRACE; BALANCE; ANTARCTICA; VARIABILITY; EARTH;

D O I：

10.3390/land14040705

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

As global temperatures rise, the Greenland ice sheet (GrIS) is undergoing accelerating mass loss, with significant implications for sea level rise and climate systems. Using GRACE and GRACE Follow-On (GRACE-FO) RL06 data from April 2002 to May 2023, alongside MARv3.14 regional climate model outputs (ice melting, runoff, rainfall, snowfall, and land surface temperature (LST)), we investigated the drivers of GrIS mass changes. Continuous wavelet transform analysis revealed significant annual signals in all variables except snowfall, with wavelet decomposition showing the largest annual amplitudes for ice melting (58.8 Gt/month) and runoff (44.5 Gt/month), surpassing those of GRACE/GRACE-FO (31.1 Gt/month). Cross-correlation analysis identified ice melting, runoff, rainfall, snowfall, and LST as significantly correlated with GrIS mass changes, with ice melting, runoff, and LST emerging as primary drivers, while snowfall and runoff exerted secondary influences. Temporal lags of 3, 4, 4, 7, and 4 months were observed for ice melting, runoff, rainfall, snowfall, and LST, respectively. These findings highlight the complex interplay of climatic and hydrological processes driving GrIS mass loss.

引用

页数：19

共 53 条

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