FLOOD02716

• County: Statewide
• Community: na
• Basin: Statewide
• Title: Evaluation of Colorado Average Annual Precipitation for the 1951-1980 Period
• Date: 12/1/1984
• Prepared For: Colorado State University
• Prepared By: Department of Atmospheric Sciences
• Floodplain - Doc Type: Educational/Technical/Reference Information

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VI.

VII.

Table of Contents

1951-1980 Precipitation Highlights

I'age

Acknowl edgmcnts. _....,... ...., ..._

..., .... ... ii

Table of Contents., ..,... ....,..._

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Lis t 0 f '" i qu re s . . , . . . . . . . . . . . . _ . . - . . . _ . . . . . . . . . . . . . . . . . . . , . .. i v

List of Tables..................._

v

I.

Introdl.ction.,..,................ _

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1

I I. Methodcl ogy.. .... .... ............, ... ... .. ............, ...... 2

Data. .....

'. ..... ....... ........., ....,.. ...... ....... .......

4

IV.

Analysi s..

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7

A. Normal-ratio adjustment procedure........................ 11

B. Rati 0 adjustment procedure............................... 12

C. r1ean annual precipitation
estimates from snow course data... ............... ........ 15

D. Research data sets......,.................... ..,.......... 20

E. Orographic precipitation model results............,...... 20

V. Resul ts. .. ......,............,.,...,.................,...... 22

A. nappinq procedure.."............................. ......22

B. Cowparison with the 1931-1960 map. ................ _...... 23

C. Variability of Colorado precipitation.................... 30

1. ~1edian precipitation.......................... _...... 31
2. Precipitation in dry years..................."...... 34
3. Precipitation in wet years... ... ......... .....'. ..... 35
t. Caution...................................... ...... 38

Referenc<:,s_

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... ... 39

... .. .40

Appendi x,. .

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