Comparison of GRACE and Model-Based Estimates of Bottom Pressure Variations Against In Situ Bottom Pressure Measurements
Comparison of GRACE and Model-Based Estimates of Bottom Pressure Variations Against In Situ Bottom Pressure Measurements
复制标题
GRACE 和基于模型的底部压力变化估计与原位底部压力测量的比较
DOI:
10.1007/978-3-642-10228-8_23
复制
发表时间:
2010
期刊:
影响因子:
--
通讯作者:
F. Siegismund
中科院分区:
文献类型:
--
作者:
Stammer;D. A. Kohl;V. Romanova;F. Siegismund
Results from several numerical ocean models were used in combination with available ocean bottom pressure data to quantitatively examine the skill of ocean models in simulating fast and slow bottom pressure variations and to test the quality of GRACE monthly fields of bottom pressure variations. The comparison between model simulations and bottom pressure data does reveal a substantial agreement between models and pressure measurements on high frequencies, but also some clear differences on longer time scales (> 1 year) that need to be corrected in order to improve estimates of the barotropic circulation. We also find a good agreement between monthly GRACE solutions and ECCO/GECCO syntheses that encourage us now to use the GRACE fields as constraints in ocean syntheses efforts. Differences of the order of a few centimeters appear consistent with previously estimated uncertainties provided by Quinn and Ponte (2008). There appears to be a large potential for assimilating GRACE data into ocean circulation models and thereby correct the seasonally varying barotropic circulation in the models, but results also highlight remaining uncertainties in the GRACE data.
登录
查看更多内容
影响因子:
3.5
作者:
C. Wunsch;P. Heimbach
通讯作者:
P. Heimbach
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
H. Munekane
通讯作者:
H. Munekane
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
D. Stammer;C. Wunsch;R. Giering;Q. Zhang;J. Marotzke;J. Marshall;C. Hill
通讯作者:
C. Hill
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
R. Rietbroek;P. Legrand;B. Wouters;J. Lemoine;G. Ramillien;C. Hughes
通讯作者:
C. Hughes
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
R. Bingham;C. Hughes
通讯作者:
C. Hughes