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<br />CONTENTS
<br />
<br />Abstract ............................... ............. .............. ........ ,........ ,....... ...... ........ .................. ......... ,......... .............................. ............
<br />Introduction ....................... ........................... .......... ................ ................ .............................. ................................................
<br />By WO, Thomas, Jr, and M,E, Jennings
<br />
<br />Purpose '" ......'"""""""",..",..""""...."", .....".. .....", ,.."".."",..",.. .....",..,....,..""" ,.....'"""", ......."""""""", ......."", 2
<br />Report Format "",.."", ,.. ,..""""", ........""...." ......, , ......"".."" ..,.. ......,..,..,....,...""...."",.....,..""",..."..""""" ,..""""" 2
<br />Acknowledgments .., ........"".. ,..,....""",..."" ,...... ,......"...., ..........,.... ,..",.." ,..",...."" ........"".."" ........... .....,..",.... ..... 2
<br />History and Overview of Rood Regionalization Methods .....................................................................................,............ 3
<br />By WO, Thomas, Jr.
<br />
<br />Introduction ...."""""""" ......."""",...."", .......",...",'....".."".." ............"..",.."",.."" ........"""".. ............ ......, ,......".. 3
<br />Index-Rood Procedures ,........""",....."""...., ,......"....""..""..,..", ,..,.."".." .........."'..'"""""......."""""""",.."""",,, 3
<br />Ordinary. Least.Squares Regression ""..,.." ......." ,.."".."" ,..",.., .......",..',....,..,..",.."" ,.......""",'..,....',..,..,...." ........, 4
<br />Generalized.Least.Squares Regression "",......" ....., ......, ....", ..........", ,.........."....,..",...."""""....,...",...",..., .....""", 4
<br />Rural Flood-Frequency Estimating Techniques ",'.."" ....." ...........,....,..,.. ,......."..,..""....., ......"""........"""""""", ,...."..,.... 6
<br />By W.O, Thomas, Jr.
<br />
<br />Introduction "........"....""..' .....'"".."'..",, ....."" ...." ....." ,..,.."......' .......", ..........."" ......,.. ,......."", .............. ..... ......."" 6
<br />Watershed and Climatic Characteristics ..""......",..",....",..""..........",.."........,......."...."",.......""..""""........."",... 6
<br />
<br />Hydrologic Rood Regions ,,' ,......".."""..""..""....,.. ......, ,....".., ......., .....,..,'.."" ....." ......."" ........"""""""".."" ........ 7
<br />Measures of Accuracy """,....,....""".. ....."...."".."" .....,...." ,....... ....,........"'..'...."",..""..."...""""".."""""..",, ....... 7
<br />Urban Flood.Frequency Estimating Techniques ,....,.....""....,'..............".......,....".."....""..""........"",....,..............",...""", 8
<br />By V.B, Sauer
<br />
<br />Introduction ,.."", ,..",......"""..""..",..."".."" ....."" ....., .....,...., ...., ......""......,.."" ...... ....,.."""""..",...."......"...."""" 8
<br />Nationwide Urban Eq uations ......."""",..""..,..........",...."...." ..........".... ,..,...." ,.."", .....""" ......."""""..""..."".... ,.. 8
<br />
<br />Local Urban Equations '" .......""""""" ,.."".."", ,...., ......"....., ,..,..,.... ,....,..".."",.."".."",..,.. ......."""""""",.."" ....... I I
<br />Rood Hydrograph Estimation ""..",..""""" .......",'.."",..""...." ,..""..,...., ,.., .......",'.."...."".."".....,..""""".."",.."'..",,..,.... 12
<br />By V.B. Sauer
<br />
<br />Estimation of Extreme Roods .....""" ,... ........"", ,..", ......""..."".."".., ,..,'......""..,........"" ,..".. ,.."",.."" .............. ...........""" 13
<br />By WO, Thomas, Jr. and W.H, Kirby
<br />
<br />Measures of Extreme Roods """""".."..",'...."....."" ....., .....".. ........" ,..,.."....".."",.."""", ,......."""""""",..",........ 13
<br />Extrapolation for the 5()()..Year Rood ....'".."""....,......."....,...................."..",.."",....",....,.."""""...."...."...."......." 14
<br />Testing and Validation of Techniques ..............""..."",..""....".....".."..".........,..".."....""..",....""""".....,.....,.....,..........,.., 17
<br />By J,8, Atkins
<br />
<br />Introduction .." ......",..."",..." ......."",.."".."".....".. ....., ,...., .......", ......." .......,.."" .....,....""""... ..........""..."".."",...., 17
<br />General Testing ,..""""""..,.....",..."""""..""...",...."" .......""..",.. ....., ,..,.." ,.."",.."".."",.."..",.."""""""", ,.."" ...... 17
<br />Extrapolation Testing for the 500. Year Rood .....................................................,.................................................... 18
<br />Regional/Slate Boundary Tesling ",..""..""...." ...."" ,..."...." ,..,.., ,.... ,......" ,.., .....'"...", .........""...."..,."...."..,....""", 18
<br />
<br />Summary ....",...."""""""..",..""""""..,...." ,.."" ,..", ,...."....".., ...........",.., ,..,............, ......"..""", .............. ....,......."" 19
<br />Applicability and Limitations ..,.."""""""" ............"""..""....".."".., ............",.., ........" ,.." ......""""",..",.........." .........""" 20
<br />By J,B, Atkins
<br />
<br />References "",..", ......., ,.., ,........"..""" ....., ........""...." ....." ....., ..............", .......,............",.."",.."".... .......,....""",'..",.."", ..... 21
<br />Summary of State Rood-Frequency Techniques ..,......",....,'....",..""...........,.."..,....,'....,'.....,........""""",..."",..,...."........, 23
<br />By H.C. Riggs and WO, Thomas, Jr,
<br />
<br />Alabama .....",..""""",.."...""..""""".. ,....." ,.."",.."" .....,.."",..,.........."".. ,........" ,........,...""",'......., ......... ..........."" 24
<br />Alaska ..,.....",.."",.."".. .....""""""""" ......, , ....." ,..",...."".."" ..,...........",..,.."....",...." ......."" ,................. ...... ,.......", 26
<br />Arizona ",.. ......""........",.."",...."........,...." ....."....""..""..",.., ..... ,......""....".."" ,.."'..,.."",,, .............."........ ,......"", 29
<br />Arkansas ,........ ,....,......""",... .....,..... ....."'....,,, ......",..",....,.. ,..,.."......"", ...."..",'..""..""""" .........."...."..,......"""", 33
<br />Cal ifomia ...."" ........"""" ..............,..,.."" ....., ........, ..... ......, ......." ......., .......",..""..""..""..... ......""".."",.."....."""", 36
<br />Colorado ,....""..""""""".., ..........""""",.."" ....." ....,.. ,..... ..... ,.., ......... ,....... ,..,....."",.."" .......,.."""""" ....,.......', ....., 39
<br />Connecticut ",.."".."".... ....",...""""""",'..""...."......,....... ..... ,.... ..............., ................" ,.........",'..'"""""",...."" ...... 44
<br />Delaware ,.........."""" .......""..""""""""..",....,..,...." ,...... ,........"...... .....,.., .........", ...." ,....""""",..""""""",.."" ...... 50
<br />Florida .."" ........""""""..".., ...." .....,'...."",'......"".."".."" .....,....', ................,.."",..,.., ........""""""""""......., ........,.. 52
<br />Georgia ",..., ......""""""" ,..... ,..",.."".."" ....., ,......."".."",...., ....., ........" ,..,...,....." ....... ............. ...", ............. ,..".., ...... 55
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<br />CONTENTS iii
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