3 edition of Effects of the 1993 flood on the determination of flood magnitude and frequency in Iowa found in the catalog.
Effects of the 1993 flood on the determination of flood magnitude and frequency in Iowa
David A. Eash
by U.S. Dept. of the Interior, U.S. Geological Survey in Washington, D.C
Written in English
Includes bibliographical references (p. 15-16).
|Statement||by David A. Eash.|
|Series||Floods in the upper Mississippi River basin, 1993 ;, K, U.S. Geological Survey circular ;, 1120|
|LC Classifications||GB1217 .F58 1993 Ch. K, GB1225.I8 .F58 1993 Ch. K|
|The Physical Object|
|Pagination||vi, 23 p. :|
|Number of Pages||23|
|LC Control Number||97038698|
Semu Ayalew Moges, Meron Teferi Taye, in Extreme Hydrology and Climate Variability, Introduction. Flood frequency analysis is a technique commonly used to relate the magnitude of extreme runoff or river flow events to their frequency of occurrence through the use of probability distribution functions. Historical records provide essential information to predict the recurrence. The area has at least a one percent (1%) chance of a flood equal to or exceeding the base flood elevation (a year flood) in any given year. During the life of a year mortgage loan, the risk of a year flood in a SFHA is 26 percent (26%).
a year flood is an estimate of the size of a flood having a recurrence interval of years, based on extrapolations of historical annual flood and recurrence interval data. it is the likelihood that a flood of a given magnitude will happen every years, but there is no guarantee. The Great Flood of (or Great Mississippi and Missouri Rivers Flood of ) was a flood that occurred in the Midwestern United States, along the Mississippi and Missouri rivers and their tributaries, from April to October The flood was among the most costly and devastating to ever occur in the United States, with $15 billion in damages (approx. $26 billion in dollars).Location: Illinois, Iowa, Kansas, Minnesota, Missouri, .
2) The effective management of Flood plains Flood defence scheme 3) To predict the possible flood magnitude over a certain time period. 4) To estimate the frequency with which floods of a certain magnitude may occur. Knowledge of flood frequency is necessary also to flood insurance and flood . This month's flooding in the Midwest is reminiscent of the Great Flood of , weather officials now say. But while a repeat of can't be ruled out, they say, this year is unlikely to match.
Buy Effects of the Flood on the Determination of Flood Magnitude and Frequency in Iowa (Floods in the Upper Mississippi River Basin,K) on Author: David A. Eash. Asindicatedbythedifferencesin themeanand median statistics listed in tables 5 to 7 for the year recurrence-interval discharge, the combined effect of the floodmagnitudeandrecordlength is greater than the effect of either individual factor on the com puted flood-frequency discharges in by: 2.
Effects of the flood on the determination of flood magnitude and frequency in Iowa. To evaluate the effects of the flood in the upper Mississippi River Basin on the determination of flood magnitude and frequency, discharges that had recurrence intervals of 10, 25, 50, and years computed from data through the water year were compared with those computed from data through the.
Effects of the flood on the determination of flood magnitude and frequency in Iowa. Request This. Author Eash, David A. Title Effects of the flood on the determination of flood magnitude and frequency in Iowa / by David A. Eash. Format Online Resource Book Published Washington, D.C.: U.S.
Dept. of the Interior, U.S. Geological Survey. Effects of the flood on the determination of flood magnitude and frequency in Iowa / By David A. Eash and Geological Survey (U.S.) Abstract. Mode of access: Internet Topics: Floods Author: David A. Eash and Geological Survey (U.S.). Circular K: Effects of the flood on the determination of flood magnitude and frequency in Iowa.
Circular L: Physical and chemical data on sediments deposited in the Missouri and the Mississippi River flood plains during the July through August flood. Background on the Midwest Flood The Midwest Flood was an unprecedented hydrometerological event in terms of its magnitude, severity, timing, and destructiveness.
Snowmelt in late winter and early spring; frequent, heavy rainfall from April through August; and saturated soil conditions combined to. The Great Midwest Flood of was the "most devastating flood in modern United States history" with economic damages near $20 billion.
More t homes were damaged or destroyed. The areal extent, intensity, and long duration of the flooding makes this event unique in the 20th century (National Oceanic and Atmospheric Administration, ).
Flood records for regular and partial-record gaging stations are contained in the following pages. Each listing contains the station name, descriptive paragraphs pertaining to the station, and a listing of the flood peaks available through the water year 2/.
2/ A water year is the period from October 1 to the following September 30 and has the same yearly designation as September. Multiple-regression techniques were used to develop flood-frequency equations by relating flood frequency and magnitude characteristics for 32 sites to basin characteristics, such as drainage area and impervious area (fig.
1).Cited by: 2. INTRODUCTION A reliable estimate of the magnitude and frequency of floods is essential to the efficient design of bridges, cul verts, dams, and other hydraulic by: 9.
Threshold effects in catchment storm response and the occurrence and magnitude of flood events: Implications for flood Available via license: CC BY Content may be subject to. During spring and summerrecord flooding inundated much of the upper Mississippi River Basin.
The magnitude of the damages-in terms of property, disrupted business, and personal trauma was unmatched by any other flood disaster in United States history.
Property damage alone is expected to exceed $10 billion. Flood magnitude at many locations was determined and reported by the U.S. Geological Survey (Boning et al., ; Parrett et al., ). Although the effects of the floods were most dra- matic in the main channels of the Mississsippi and X/94/$ Elsevier Science by: 7.
Magnitude and Frequency of Floods in the United States Part 6-A. Missouri River Basin above Sioux Cit'% Iowa By JAMES L. PATTERSON GEOLOGICAL SURVEY WATER-SUPPLY PAPER UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: Cited by: 5.
The downstream increase in flood magnitude in the Mississippi River basin appears to be largely due to the north to south movement of heavy precipitation patterns during the summer ofresulting in convergence of flood discharges in the main portion of the Mississippi River valley (Parrett et al., ).Cited by: 7.
-- To evaluate the effects of the flood in the upper Mississippi River Basin on the determination of flood magnitude and frequency, discharges that had recurrence intervals of. DFO Flood Magnitude Scale: The Flood Magnitude value is a measure of “how severe” a flood is, as a strictly hydrological occurrence (no assessment of damage is implied).
“0” is the smallest reported value (discharge is below the y recurrence interval discharge; no flooding).File Size: KB. This indicates that the flooding of is significant with respect to its long duration and magnitude of flow. The same aspect is indicated in the frequency analysis of the flood.
During the flood, the year 3-day flows were exceeded at 22 stations. In flood frequency analysis (FFA), the adequate choice of distribution to fit data is a major problem.
The three-parameter lognormal (LN3) distribution has an intermediate tail behavior between. Flood Response and Recovery after the Flood (September 1, ) The spring and summer of have been marked by record flooding on the Upper Mississippi River and many of its tributaries. This flood has been a disaster of enormous proportions for many communities in the Upper Midwest and for the region's citizens.The Floods ofIowa Flood Disaster Report, Part 1.
() The Floods ofIowa Floodflood, response, recovery, experiences: Subjects: Federal government Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.In the Central United States (CUS) the frequency of flooding events has been increasing, while the magnitude of historic events has been decreasing.
Overall, 34% of the stations () showed an increasing trend in the number of flood events, 9% (66) a decrease, and 57% () no .