(SGER) Sedimentary Markers-Disastrous Danube Floods in Romania 2005-2006

(SGER) 沉积标记 - 2005-2006 年罗马尼亚多瑙河灾难性洪水

• 批准号: 0637108
• 负责人: Liviu Giosan
• 金额: $ 5万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-15 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0637108&HistoricalAwards=false
• 关键词: SGER; Sedimentary; Markers; Disastrous; Danube

0637108GiosanThis Small Grant for Exploratory Research (SGER) project will send the principal investigator Dr. Liviu Giosan and postdoctoral researcher Dr. Andrew Ashton from Woods Hole Oceanographic Institute to the Danube Delta region in Romania to survey the deposits of the recent disastrous Danube floods of 2005 and 2006. The U.S. researchers will study the sediment beds resulting from the 2005-2006 floods to obtain a good understanding of flood indicators in sediments of the delta. The deposits of the recent flood will be transformed and/or disturbed by physical and biological processes as time goes by, and as more time elapses, the deposits will be harder to clearly identify. Thus, the researchers intend to travel to the Danube Delta to conduct their research in Fall 2006.The PI is collaborating with several Romanian scientists who have experience in the Danube Delta. Drs. Iuliana Armas, Stefan Constantinescu and Alfred Vespremeanu-Stroe, the main collaborators, are members of the Faculty of Geography at the University of Bucharest. They have been monitoring the flood and will participate in the field research together with doctoral, master's and bachelor's degree students from the University of Bucharest. The Romanian team has worked with the PI to plan the proposed research.Intellectual Merit:The Danube River is the largest river in the Central and Southeastern Europe. Flood and drought hazards along the river directly affect 10 countries. The researchers involved in this project will survey the deposits of the recent disastrous Danube floods of 2005 and 2006. The survey will take place at strategic positions primarily at the apex of the Danube delta and secondarily on the river-dominated sector on the Black Sea continental shelf. Both of these locations integrate the signal of the entire Danube basin and provide the opportunity to extend the analysis to the longer period of the late Holocene, when the sea level change was not an important factor in sedimentation. During this time significant climatic intervals such as the Little Ice Age or Medieval Warm Period occurred, probably leading to changes in the river hydrology. Understanding the sedimentary markers of modern floods will provide the community with tools for this paleoreconstruction. It will also provide input parameters for modeling of the Danube discharge regime that will be undertaken in the future. In addition, in-depth understanding of the flood sedimentation of the Danube will contribute to the knowledge of floodplain and prodelta sedimentation and development.Broader Impact:The Danube Delta is an area of special ecological importance, which had not attracted much attention from U.S. researchers. The floods of 2005-2006 were devastating to the area, and better understanding of the flooding behavior of the river has both scientific and societal value. This project supports two U.S. junior researchers in a well-founded intellectual collaboration with international partners.

0637108Giosan这项探索性研究小额赠款（SGER）项目将派伍兹霍尔海洋研究所的首席研究员 Liviu Giosan 博士和博士后研究员 Andrew Ashton 博士前往罗马尼亚多瑙河三角洲地区，调查 2005 年多瑙河灾难性洪水的沉积物和 2006 年。美国研究人员将研究 2005-2006 年形成的沉积层洪水，以便更好地了解三角洲沉积物中的洪水指标。随着时间的推移，近期洪水的沉积物将受到物理和生物过程的转化和/或干扰，并且随着时间的推移，沉积物将更难以清晰识别。因此，研究人员打算在 2006 年秋季前往多瑙河三角洲进行研究。PI 正在与几位在多瑙河三角洲有丰富经验的罗马尼亚科学家合作。博士。主要合作者 Iuliana Armas、Stefan Constantinescu 和 Alfred Vespremeanu-Stroe 都是布加勒斯特大学地理系的成员。他们一直在监测洪水，并将与布加勒斯特大学的博士生、硕士生和学士学位生一起参与实地研究。罗马尼亚团队与 PI 合作规划了拟议的研究。 智力优势：多瑙河是中欧和东南欧最大的河流。沿河洪涝灾害直接影响10个国家。参与该项目的研究人员将对 2005 年和 2006 年最近发生的灾难性多瑙河洪水的沉积物进行调查。调查将在战略位置进行，主要是多瑙河三角洲的顶端，其次是黑海大陆河流主导的地区。架子。这两个位置都整合了整个多瑙河盆地的信号，并提供了将分析扩展到全新世晚期较长时期的机会，当时海平面变化并不是沉积的重要因素。在此期间，出现了小冰河期或中世纪暖期等重要的气候间隔，可能导致河流水文发生变化。了解现代洪水的沉积标志将为社区提供进行古矿石重建的工具。它还将为将来进行的多瑙河流量状况建模提供输入参数。此外，对多瑙河洪水沉积的深入了解将有助于了解洪泛区和前三角洲的沉积和发育。 更广泛的影响：多瑙河三角洲是一个具有特殊生态重要性的地区，此前并未引起美国研究人员的足够重视。 。 2005 年至 2006 年的洪水对该地区造成了毁灭性的影响，更好地了解河流的洪水行为具有科学和社会价值。该项目支持两名美国初级研究人员与国际合作伙伴进行基础良好的智力合作。