四维变分资料同化在风暴潮模拟中的平流作用分析

doi:10.11978/j.issn.1009-5470.2011.05.019

Abstract

Abstract: A four-dimensional variational data assimilation (4DVAR) algorithm based on the three-dimensional Princeton Ocean Model (POM) and the adjoint of its tangent linear model was applied to a storm surge simulation using model-generated ‘‘pseudo-observations.’’ The analysis was focused on the role of horizontal advection in improving storm surge simulation by the 4DVAR. It is found that the significant impact of 4DVAR on the storm surge simulation is only seen in the first five hours of the simulation, with its maximum impact during the first 3 - 4 hours. The results show that the alongshore currents and the shoreward currents became greater after data assimilation. It is also found that the improvement of storm surge simulation by 4DVAR is from the increase in shoreward flux of water mass. However, the increase of the water level reduced the pressure gradient, leading to the weakening of the shoreward currents when only assimilating water level data. Assimilating both the water level and the surface currents helped to keep the intensity of the shoreward currents, and thus led to a better simulation of storm surge.

Key words: storm surge, four-dimensional variational data assimilation (4DVAR);advection effect;data assimilation

CLC Number:

P731

LI Yi-neng,PENG Shi-Qiu,SHU Ye-qiang,LAI Zhi-juan . Analysis of advection effects using four-dimensional variational data assimilation in storm surge simulation [J].Journal of Tropical Oceanography, 2011, 30(5): 19-26.

References

[1] BENNETT A F. Monographs Inverse Methods in Physical Oceaography[M]//Cambridgeon Mechanics and Applied Mathematics. Cambridge: Cambridge University Press, 1992: 346. [2] GHIL M, MALANOTTE-RIZZOLI P, Data Assimilation in Meteorology and Oceanography[J]. Adv Geophys, 1991, 33: 141-266. [3] BOUTTIER F, COURTIER P. Data assimilation concepts and methods[M]// ECMWF. Meteorological Training Course Lecture Series. 1999: 1-75. [4] THEPAUT J N, HOFFMAN R N, COURTIER P. Interactions of dynamics and observations in a 4-dimensional variational assimilation[J]. Mon Weather Rev, 1993, 119: 3393-3414. [5] ZUPANSKI M. Regional four-dimensional variational data assimilation in a quasi-operational forecasting environment[J]. Mon Weather Rev, 1993, 121: 2396-2408. [6] ZUPANSKI D, MESINGER F. Four-dimensional variational data assimilation of precipiation data[J]. Mon Weather Review, 1995. 123: p. 1112-1127. [7] ZUPANSKI D. A general weak constraint applicable to operational 4DVAR data assimilation systems[J]. Mon Weather Rev, 1997, 125: 2274-2292. [8] SASAKI Y. Some basic formalisms in numerical variational analysis[J]. Mon Weather Rev, 1970, 98: 875–883. [9] LEDIMET F X, TALAGRAND O. Variational algorithms for analysis and assimilation of meteorological observations: theoretical aspects[J]. Tellus, 1986, 38A: 97–110. [10] DERBER J C. Variational four-dimensional analysis using quasi-geostrophic constraints[J]. Mon Weather Rev, 1987, 115: 998–1008. [11] TALAGRAND O, COURTIER P. Variational assimilation of meteorological observations with the adjoint vorticity equation. Part I: Theory[J]. Quart J Roy Meteor Soc, 1987, 113: 1311-1328. [12] COURTIER P, TALAGRAND O. Variational assimilation of meteorological observations with the direct and adjoint shallow-water equation[J]. Tellus, 1992, 42A: 531–549. [13] THEPAUT J N, COURTIER P. Four-dimensional variational data assimilation using the adjoint of a multilevel primitive-equation model[J]. Quart J Roy Meteor Soc, 1991, 117, 1225-1254. [14] NAVON I M, ZOU X, DERBER J, SELA J. Variational data assimilation with an adiabatic version of the NMC spectral model[J]. Mon Weather Rev, 1992, 120: 1433-1446. [15] RABIER F, COURTIER P. Four-dimensional assimilation in the presence of baroclinic instability[J]. Quart J Roy Meteor Soc. 1992, 118: 649–672. [16] ZOU X, NAVON I M, SELA J. Control of gravitational oscillations in variational data assimilation[J]. Mon Weather Rev, 1993, 121: 272–289. [17] ANDERSSON E, PAILEUX J, THE′PAUT J N, et al. Use of cloud-cleared radiances in three/four-dimensional variational data assimilation[J]. Quart J Roy Meteor Soc, 1994, 120: 627–653. [18] COURTIER P, THE′PAUT J N, HOLLINGSWORTH A. A strategy for operational implementation of 4D-Var, using an incremental approach[J]. Quart J Roy Meteor Soc, 1994, 120: 1367-1388. [19] ZOU X L, XIAO Q N. Studies on the initialization and simulation of a mature Hurricane using a variational bogus data assimilation scheme[J]. J Atoms Sci, 2000, 57(6): 836-860. [20] PENG S Q, ZOU X. Assimilation of NCEP multi-sensor hourly rainfall data using 4D-Var approach: a case study of the squall line on 5 April 1999[J]. Meteor Atmos Phys, 2002, 81: 237–255. [21] PENG S Q, ZOU X. Assimilation of ground-based GPS zenith total delay and rain gauge precipitation observations using 4D-Var and their impact on short-range QPF[J]. J Meteor Soc Jpn, 2004, 82: 491–506. [22] BENNETT A F, MCINTOSH P C. Open ocean modeling as an inverse problem: tidal theory[J]. J Phys Oceanogr, 1982, 12: 1004-1018. [23] YU L, O’BRIEN J J. Variational estimation of the wind stress drag coefficient and the oceanic eddy viscosity profile[J]. J Phys Oceanogr, 1991, 21: 709–719. [24] DAS S K, LARDNER R W. On the estimation of parameters of hydraulic models by assimilation of periodic tidal data[J]. J Geophys Res, 1991, 96 (C8): 15187–15196. [25] SEILER U. Estimation of open boundary conditions with the adjoint method[J]. J Geophys Res, 1993, 98: 22855-22870. [26] LU J, HSIIEH W E. Adjoint data assimilation in coupled atmosphere–ocean models: determining initial model parameters in a simple equatorial model[J]. Quart J Roy Meteor Soc, 1997, 123: 2115-2139. [27] LU J, HSIEH W E. Adjoint data assimilation in coupled atmosphere–ocean models: determining initial conditions in a simple equatorial model[J]. J Meteor Soc Jpn, 1998a, 76: 737-748. [28] LU J, HSIEH W E. On determining initial conditions and parameters in a simple couples atmosphere–ocean model by adjoint data assimilation[J]. Tellus, 1998b, 50A: 534-544. [29] HEEMINK A W, MOUTHAAN E A, ROEST M R T, et al. Inverse 3D shallow water flow modeling of the continental shelf[J]. Continental Shelf Res, 2002, 22: 465-484. [30] ZHANG A, PARKER B B, WEI E. Assimilation of water level data into a coastal hydrodynamic model by an adjoint optimal technique[J]. Continental Shelf Res, 2002, 22: 1909-1934. [31] ZHANG A J, WEI E, PARKER B B. Optimal estimation of tidal open boundary conditions using predicted tides and adjoint data assimilation technique[J]. Continental Shelf Res, 2003, 23: 1055-1070. [32] 吕咸青, 田纪伟, 吴自库. 渤、黄海的底摩擦系数 [J]. 力学学报, 2003, 35(4): 465-468 ． [33] LIONELLO P, SANNA A, ELVINI E, et al. A data assimilation procedure for operational prediction of storm surge in the northern Adriatic Sea[J]. Continental Shelf Research, . 2006, 26: 539-553. [34] MADSEN H, JAKOBSEN F. Cyclone induced storm surge and flood forecasting in the northern Bay of Bengal [J]. Coastal Engineering, 2004, 51: 277-296. [35] PENG S Q, XIE L. Effect of determining initial conditions by four-dimensional variational data assimilation on storm surge forecasting[J]. Ocean Modelling, 2006, 14: 1-18. [36] BLUMBERG A F, MELLOR G L. A description of a three- dimensional coastal ocean circulation model[C]//HEAPS N S. Three Dimensional Coastal Ocean Models. Washington, DC: American Geophysical Union, 1987: 1-16. [37] Mellor G. L. Users guide for a three-dimensional, primitive equation, numerical ocean model (June 2003 version)[C]// Prog in Atmos. and Ocean Sci. Princeton University, 2003: 1-53. [38] XIE L, PIETRAFESA L J, PENG M. Incorporation of a mass-conserving inundation scheme into a three- dimensional storm surge model[J]. J Coastal Res, 2004, 20: 1209-1223. [39] PENG M, XIE L, PIETRAFESA L J. A numerical study of storm surge and inundation in the Croatan-Albemarle- Pamlico Estuary System[J]. Estuarine, Coastal and Shelf Sciences, 2004, 59: 121-137. [40] PENG M, XIE L, PIETRAFESA L J. A numerical study on hurricane induced storm surge and inundation in Charleston Harbor, South Carolina[J]. J Geophys Res, 111, C08017.

Analysis of advection effects using four-dimensional variational data assimilation in storm surge simulation

PDF (PC)

Like

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 12

Metrics

Comments

Recommended 0

[1]	DING Yiting, DONG Dibo. Study on comprehensive risk assessment of storm surges for Fujian Province from the perspective of resilience [J]. Journal of Tropical Oceanography, 2024, 43(1): 126-136.
[2]	ZHANG Zheran, HU Junyang, ZHOU Kai, ZHANG Penghui, XING Jiuxing, CHEN Shengli. Storm surge simulations of the coastal area of Shenzhen using different types of typhoon meteorological fields—a case study of Typhoon Mangkhut^* [J]. Journal of Tropical Oceanography, 2023, 42(6): 1-14.
[3]	GAO Na, ZHAO Mingli, MA Yi, XU Wanming, ZHAN Haigang, CAI Shuqun. Effect of typhoon on storm surge in the Pearl River Estuary [J]. Journal of Tropical Oceanography, 2023, 42(1): 32-42.
[4]	XU Jie, GUO Jibing, CHEN Zhiqiang, ZHU Zhihui, WANG Qin, TANG Yanling. Comparative study on the contribution of various influential factors and characteristics analysis of an extra-tropical storm surge caused by cold front in the Yangshan Port and its adjacent area [J]. Journal of Tropical Oceanography, 2022, 41(4): 126-135.
[5]	DENG Guotong, LIU Mincong, XING Jiuxing, SHENG Jinyu, ZHOU Kai, CHEN Shengli. Analysis on the influencing factors of storm surges near Shenzhen [J]. Journal of Tropical Oceanography, 2022, 41(3): 91-100.
[6]	SUN Fenglin. Disaster loss assessment of storm surge based on Dempster-Shafer theory of evidence [J]. Journal of Tropical Oceanography, 2022, 41(1): 75-81.
[7]	SHEN Qianying, JI Xiaomei, ZHANG Wei, XU Yanwen. Impact of estuarine storm surge barriers on spatiotemporal variation of tidal asymmetry in a delta^* [J]. Journal of Tropical Oceanography, 2021, 40(5): 1-9.
[8]	WANG Yuanqi, YANG Yang, ZHOU Liang, WANG Yaping, GAO Shu. Interpreting the origin of coastal boulders on a coral reef flat at Xiaodonghai of Hainan Island based on storm wave energy analysis [J]. Journal of Tropical Oceanography, 2021, 40(4): 110-121.
[9]	Min ZHANG, Jun LUO, Jinlei HU, Xuezhi ZENG. Inundation risk assessment of storm surge along Lei Zhou coastal areas^* [J]. Journal of Tropical Oceanography, 2019, 38(2): 1-12.
[10]	YIN Chengtuan, ZHANG Jinshan, XIONG Mengjie, XU Junhui. Trend analysis of typhoon and storm surge disaster on the South China Sea coast of China [J]. Journal of Tropical Oceanography, 2019, 38(1): 35-42.
[11]	XIA Li-hua, WU Hui-ming, LIU Ming, LENG Dian-song, LI Ting-ting. Characteristic analysis of storm surges along Fujian coast associated with tropical cyclones [J]. Journal of Tropical Oceanography, 2014, 33(3): 40-45.
[12]	WANG Kang-fa-sheng,YIN Zhan-e,YIN Jie. Analysis on typhoon-induced storm surge vulnerability of China’s coastal areas on rising sea level background [J]. Journal of Tropical Oceanography, 2011, 30(6): 31-36.