深圳西涌濱海旅游區(qū)海灘裂流風(fēng)險(xiǎn)評(píng)估及特征分析

作者：張娟1 2  周水華1 2  綦夢(mèng)楠1 2  洪曉1 2  王凱敏3

單位：1. 國(guó)家海洋局南海預(yù)報(bào)中心, 廣東 廣州 510300; 2. 自然資源部海洋環(huán)境探測(cè)技術(shù)與應(yīng)用重點(diǎn)實(shí)驗(yàn)室, 廣東 廣州 510300; 3. 深圳市海洋監(jiān)測(cè)預(yù)報(bào)中心, 廣東 深圳 518067

關(guān)鍵詞：地形動(dòng)力學(xué) 裂流 風(fēng)險(xiǎn)排查 西涌濱海旅游區(qū)

分類(lèi)號(hào)：P731.21

出版年·卷·期（頁(yè)碼）：2021·38·第一期（61-66）

摘要：

基于海灘地形動(dòng)力學(xué)、遙感影像的風(fēng)險(xiǎn)預(yù)識(shí)別以及現(xiàn)場(chǎng)排查等方法，對(duì)西涌濱海旅游區(qū)海灘裂流風(fēng)險(xiǎn)進(jìn)行了初步評(píng)估。評(píng)估結(jié)果表明：地形動(dòng)力分析結(jié)果顯示，西涌濱海旅游區(qū)泳場(chǎng)逐月平均沙灘類(lèi)型大部分是沿岸沙壩和裂流溝槽交替的沙壩型（B），風(fēng)險(xiǎn)等級(jí)高；影像特征判斷該沙灘屬于沿岸沙壩和裂流溝槽交替的沙壩型（B）或者低潮位附近伴有沖流沙壩及裂流溝槽的低潮沙壩裂流型（LTBR），裂流風(fēng)險(xiǎn)等級(jí)高；歷史影像和現(xiàn)場(chǎng)調(diào)研均發(fā)現(xiàn)該海灘發(fā)生過(guò)裂流；綜合判定該海灘裂流風(fēng)險(xiǎn)等級(jí)為高。但鑒于觀(guān)測(cè)資料限制和評(píng)價(jià)方法自身局限性的影響，本次排查結(jié)論僅為初步結(jié)論，其合理性尚需更加深入的研究。

Based on the beach morphodynamics, the risk pre-identification using remote sensing image and the on-site risk investigation, this paper makes a preliminary assessment of the risk of rip current in the beach of Xichong coastal tourism area of Shenzhen. It is found that the monthly average beach type mostly is barred (B) with high risk level as shown by the beach morphodynamics, while the remote sensing image approves that the beach belongs to the type of barred (B) or the low-tide bar rip (LTBR) with high risk of rip current. Meanwhile, historical rip current events are found by remote sensing image and on-site investigation. Therefore, we preliminarily conclude that the risk level of rip current is high with uncertainties due to the limitation of observation data and assessment method.

參考文獻(xiàn)：

[1] Gensini V A, Ashley W S. An examination of rip current fatalities in the United States[J]. Natural Hazards, 2010, 54(1):159-175. [2] Brannstrom C, Lee Brown H, Houser C, et al."You can't see them from sitting here":evaluating beach user understanding of a rip current warning sign[J]. Applied Geography, 2015, 56:61-70. [3] 張堯, 劉旭楠, 董肇偉, 等. 我國(guó)典型濱海旅游區(qū)裂流災(zāi)害評(píng)估調(diào)查及風(fēng)險(xiǎn)管理動(dòng)態(tài)[J]. 海洋開(kāi)發(fā)與管理, 2018, 35(7):16-25. [4] Lee J, Cho W C, Lee J L. The application of a rip current warning decision-process system, Haeundae Beach, South Korea[J]. Journal of Coastal Research, 2016, 75(10075):1167-1171. [5] Van Leeuwen B R, McCarroll R J, Brander R W, et al. Examining rip current escape strategies in non-traditional beach morphologies[J]. Natural Hazards, 2016, 81(1):145-165. [6] Haller M C, Dalrymple R A, Svendsen I A. Experimental study of nearshore dynamics on a barred beach with rip channels[J]. Journal of Geophysical Research:Oceans, 2002, 107(C6):14. [7] 孟凡昌, 李本霞. 裂流的研究綜述[J]. 海洋預(yù)報(bào), 2017, 34(1):82-89. [8] Wright L D, Short A D, Green M O. Short-term changes in the morphodynamic states of beaches and surf zones:an empirical predictive model[J]. Marine Geology, 1985, 62(3-4):339-364. [9] Masselink G, Short A D. The effect of tide range on beach morphodynamics and Morphology:a conceptual beach model[J]. Journal of Coastal Research, 1993, 9(3):785-800. [10] 李志強(qiáng). 基于地形動(dòng)力學(xué)的華南海灘裂流風(fēng)險(xiǎn)研究[J]. 熱帶海洋學(xué)報(bào), 2015, 34(1):8-14. [11] 李志強(qiáng), 朱雅敏. 基于地形動(dòng)力學(xué)的海灘裂流安全性評(píng)價(jià)——以三亞大東海為例[J]. 熱帶地理, 2015, 35(1):96-102. [12] 李志強(qiáng), 陳杏文. 湛江東海島裂流風(fēng)險(xiǎn)評(píng)價(jià)[J]. 海洋開(kāi)發(fā)與管理, 2016, 33(S2):73-78.

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