FLOOD07755

• County: Statewide
• Basin: Statewide
• Title: Engineering and Design Runoff from Snowmelt
• Date: 1/5/1960
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Educational/Technical/Reference Information

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MANUALS-CORPS OF ENGINEERS
U.S, ARMY

EM 1110-2-1406
5 Jan 60

ENGINEERING AND DESIGN

RUNOFF FROM SNOWMELT
TABLE OF CONTENTS

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CHAPTER 1
INTRODUCTION
Paragraph Page
1-01 PURPOSE A","D SCOPE______ ____ _________________________________________ 1
1-02 HEFERENCES____ __ _ _ _ _ _ ___ _ __ _ _ __ _ _ __ _ __ ____ - __ __ _ -- - - -- - - -- h _ _ _ __ _ _ __ _ 1
1-03 DEFLt\lTIOKS_____ _ ___ __ __ ___ ___ _ __ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ __ __ ___ _ - _ -_ - - - _ ---- - - 1
1-04 GE","ERAL__ _ __ _ _ _ _ _ _ _ _ _ _ ___ _ _ _ _ __ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ __ _ _ _ _ _ __ _ _ _ _ __ _ _ _ - _ _ _ - _ 1
1-05 PROBLE~r OF SNOW HYDROLOGY________________________________________ 2

CHAPTER 2
THEORY OF SNOWMELT AT A POINT
2-01 GEXERAL_________ ___ __ _____ _ ___ _ ____ __ _ _ ___ _ __ _________ ______ ____ __ 3
2-02 SOUHCES OF HEAT__ __ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ __ _ _ _ _ _ _ _ _ - __ _ - _ - _ -- - _ - _ 3
2-03 THERMAL QUALITY- _ _ ___ _ _ _ __ ___ __ _ _ _ _ _ _ __ _ ___ _ _ __ _ _ _ _ __ __ _ __ __ __ ___ 3
2-04 SOLAR RADIATIOX ____ __ __ __ __ __ _ __ __ __ ___ ___ ___ __ _ ___ ___ _ _____ ___ _______ 3
2-05 ALBEDO______ __ _ __ ____ __ __ _ _ _ _ __ __ __ _ ___ _ _ __ __ _ _ _ __ _ _ _ __ __ ___ __ _ __ _ ____ 5
2-0G LONG\VAVE RADIATION______ ______ ______ ___ _ _______________ _ 6
2-07 ENEHGY EXCHAXGE FRmr THE AnrosPHEl\E_________________________ 7
2-08 COXVECTION MELT_____ _ __ _ __ _ _ _ _ _ _ __ __ __ _ _ __ _ _ __ _ __ _ - _ - _ __ _ _ -- - -- - - _ -_ 8
2-09 COXDENSATlON MELT _____ _ ___ __ ____ __ _ _ __ _ __ _ __ __ _ _ _ _ _ _ __ _ _ _ __ _ - _ -- - _ - _ 8
2-10 snrPLIFIED EQUATION FOH CONVECTlOX-COKDEXSATIOX ~!Er/r______ 8

CHAPTER 3
BASIK SNOW~IELT DURING RAIN

3-01 BASIC COXSfDERATIOXS___ _ ___ __ ___ _ __ __ _ __ __ __ __ __ __ _ _ _ _ _ _ _ __ _ _ _ _ _ _ ___ 9
3-02 CLASSIFICATJOX OF FOREST DEXSITY_ _ __ _ __ __ _ _ __ __ __ __ _ _ _ _ _ _ __ __ __ __ 9
3-0;, SHORTWAVE RADIATIOX ~lErn'___________________ ______________________ 9
3-04 LO","GWAVE RADIATlOX ~rELTn________ ____ __ ________________________ 9
3-05 COXVECTIOX-COKDE:\SATJON ~IELT_____________ ______________________ 10
3-01i RAIN c\mLT____ ____ _ ______ ___ __ _ _ __ _ _ _ _ _ _ _ _ _ ___ _ __ _ ___ _ _ _ __ ____ _ _ _ __ _ _ _ ___ 10
3-07 GROUND ~!EL'L_____. _ __ ________________ ____ ______ ____ 10
3-08 GK'IERAL EQUATIO.\ FOR TOTAl, BASIX ~!ELT DCJUI\G RAJX ____ _ _____ 10

CHAPTER 4
BASIK SNOW..\IELT DURIXG RAIN-FREE PERIODS

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4-01 GENERAL__ __ _ _ __ _ __ _ _ _ _ _ _ _ _ _ _ __ __ __ __ _ _ __ __ _ _ - _ -- - - - -- _ -- - _ - - - - - - - - - --_
4-02 SOLAR RADIATION _ _ __ _ _ __ _ _ _ _ _ _ _ - __ _ - - - - -- - -- - - - - - - - - - - - - - - -- - - - -- - ---
4-0:, ALBEDO_______ _______ ____ _ - _ -__ - - - -- - --- - ------ --- --- - - - - - ----- - - - - -------
4-04 BASIN SH01\T\L\VE c\IELT COEFFICJEXL_______________________________
4-0;; LO:\GWA VE RADIA'['JO:\ ___ _ __ ____ __ _ __ _ __ - _ - - -- - -- -- -- -- - - - - -- - - - - -- - --
4-0G EFFECTJ\-E FOREST CAXOPY con=R, F_______ __ _ _ _ __ _ __ __ ___ _ ___ _ ____
4-(17 CONVECTIOK-CONDEXSATION ~!EL'L______ _ __ __ __ _ ___ _ _ _ ____ _ _ __ _______
4-08 GEl\ERALlZED BASl:\ SKO\V.\IELT EQUATJOl\S__ _ __ ___ __ __ __ __ ___

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