(SGER) Compilation of Hydrometeorological Data for the 1993 Flood

9412460从几个角度来看，1993年密西西比河上游发生的洪水是一次奇特的事件。这是有记录以来最严重的夏季洪水，圣路易斯的总流量达到了500年一遇的洪水水平。这个流域通常在春季经历洪水水位，但在1993年3-4月确实发生了春季洪水。然而，从5月中旬到8月下旬，持续的大范围降雨使密苏里河和密西西比河及其主要支流都陷入了极端洪水。夏季方面是独一无二的，这两条河上的洪水也是独一无二的，在许多地方持续了两个月至三个月。洪水覆盖了大片地区，并造成了美国历史上最严重的自然灾害之一。该项目的主要活动将是收集1992年年中至1993年期间与洪灾有关的所有现有数据。这将包括降雨量、溪流流量、水库水位(包括溢洪道排放的地下水位)、溪水水质和地下水水质的数据。我们将制作一份数字格式的《洪水数据档案》。不能充分数字化的数据将被保留，并以硬拷贝格式提供。这个数据库将提供给所有感兴趣的科学家和其他想要以象征性成本复制的人。该档案将在科学期刊、相关行业期刊和政府相关出版物上广泛刊登广告。如果感兴趣的联邦机构，如美国地质勘探局和美国环保局希望帮助分发所创建的档案，将作出这些安排。

9412460 Changnon The 1993 flood on the Upper Mississippi River Basin was a singular event from several perspectives. It ranked as the worst recorded summer season flood with the combined flow at St. Louis achieving a flood level rated as a once in 500-year event. This basin, which typically experiences flood levels in the spring, indeed had spring floods in March-April 1993. However, continuous widespread rains from mid-May through late August brought both the Missouri and Mississippi Rivers and their major tributaries into extreme flooding. The summer season aspect was unique, as was the prolonged nature of the flood on both rivers, lasting between two months and three months at many locations. The floods covered an enormous area and produced one for of the worst natural disasters in the history of the United States. The primary activity of this project will be the collection of all available data related to the floods from mid-1992 through 1993. This will include data on rainfall, stream1flow, water levels in reservoirs including spillway discharges ground water levels, stream water quality, and ground water quality. We will produce a "flood data archive" in digital format. Data that cannot be adequately digitized will be retained and made available in hard copy formats. This database will be made available to all interested scientists and others who desire copies at nominal costs. The archive will be widely advertised in scientific journals, relevant trade journals, and in government-related publications. If interested federal agencies such as the USGS and USEPA wish to help in the distribution of the archive created, these arrangements will be made.