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In cooperation with the Texas Department of Transportation

Atlas of Depth-Duration Frequency of Precipitation Annual Maxima for Texas

By W.H. Asquith and M.C. Roussel

U.S. Geological Survey
Scientific Investigations Report 2004–5041
(TxDOT Implementation Report 5–1301–01–1)


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pdf (40.4 MB)


Contents

Abstract

Introduction

Purpose and Scope

Background

Depth-Duration Frequency of Precipitation Annual Maxima

Alternative Regional Frequency Analysis

Results for South Texas

Results for Western North Texas and Southwestern Oklahoma

Contour Maps of Depth-Duration Frequency of Precipitation Annual Maxima in Texas

Summary

Selected References

Figures

1.  
Graphs showing L-moment ratio diagrams for selected storm durations in Texas
2.  
Flowchart showing components of the process to generate a depth-duration frequency of precipitation map for Texas
3.  
Map showing National Weather Service hourly precipitation stations in the South Texas, western North Texas, and southwestern Oklahoma regions
4–15.  
Maps showing depth of precipitation for 2-year storm for:
4.  
15-minute duration in Texas
5.  
30-minute duration in Texas
6.  
1-hour duration in Texas
7.  
2-hour duration in Texas
8.  
3-hour duration in Texas
9.  
6-hour duration in Texas
10.  
12-hour duration in Texas
11.  
1-day duration in Texas
12.  
2-day duration in Texas
13.  
3-day duration in Texas
14.  
5-day duration in Texas
15.  
7-day duration in Texas
16–27.  
Maps showing depth of precipitation for 5-year storm for:
16.  
15-minute duration in Texas
17.  
30-minute duration in Texas
18.  
1-hour duration in Texas
19.  
2-hour duration in Texas
20.  
3-hour duration in Texas
21.  
6-hour duration in Texas
22.  
12-hour duration in Texas
23.  
1-day duration in Texas
24.  
2-day duration in Texas
25.  
3-day duration in Texas
26.  
5-day duration in Texas
27.  
7-day duration in Texas
28–39.  
Maps showing depth of precipitation for 10-year storm for:
28.  
15-minute duration in Texas
29.  
30-minute duration in Texas
30.  
1-hour duration in Texas
31.  
2-hour duration in Texas
32.  
3-hour duration in Texas
33.  
6-hour duration in Texas
34.  
12-hour duration in Texas
35.  
1-day duration in Texas
36.  
2-day duration in Texas
37.  
3-day duration in Texas
38.  
5-day duration in Texas
39.  
7-day duration in Texas
40–51.  
Maps showing depth of precipitation for 25-year storm for:
40.  
15-minute duration in Texas
41.  
30-minute duration in Texas
42.  
1-hour duration in Texas
43.  
2-hour duration in Texas
44.  
3-hour duration in Texas
45.  
6-hour duration in Texas
46.  
12-hour duration in Texas
47.  
1-day duration in Texas
48.  
2-day duration in Texas
49.  
3-day duration in Texas
50.  
5-day duration in Texas
51.  
7-day duration in Texas
52–63.  
Maps showing depth of precipitation for 50-year storm for:
52.  
15-minute duration in Texas
53.  
30-minute duration in Texas
54.  
1-hour duration in Texas
55.  
2-hour duration in Texas
56.  
3-hour duration in Texas
 
57.  
6-hour duration in Texas
 
58.  
12-hour duration in Texas
 
59.  
1-day duration in Texas
 
60.  
2-day duration in Texas
 
61.  
3-day duration in Texas
 
62.  
5-day duration in Texas
 
63.  
7-day duration in Texas
64–75.  
Maps showing depth of precipitation for 100-year storm for:
 
64.  
15-minute duration in Texas
 
65.  
30-minute duration in Texas
 
66.  
1-hour duration in Texas
 
67.  
2-hour duration in Texas
 
68.  
3-hour duration in Texas
 
69.  
6-hour duration in Texas
 
70.  
12-hour duration in Texas
 
71.  
1-day duration in Texas
 
72.  
2-day duration in Texas
 
73.  
3-day duration in Texas
 
74.  
5-day duration in Texas
 
75.  
7-day duration in Texas
76–87.  
Maps showing depth of precipitation for 250-year storm for:
76.  
15-minute duration in Texas
 
77.  
30-minute duration in Texas
 
78.  
1-hour duration in Texas
 
79.  
2-hour duration in Texas
 
80.  
3-hour duration in Texas
 
81.  
6-hour duration in Texas
 
82.  
12-hour duration in Texas
 
83.  
1-day duration in Texas
 
84.  
2-day duration in Texas
 
85.  
3-day duration in Texas
 
86.  
5-day duration in Texas
 
87.  
7-day duration in Texas
88–99.  
Maps showing depth of precipitation for 500-year storm for:
 
88.  
15-minute duration in Texas
 
89.  
30-minute duration in Texas
 
90.  
1-hour duration in Texas
 
91.  
2-hour duration in Texas
 
92.  
3-hour duration in Texas
 
93.  
6-hour duration in Texas
 
94.  
12-hour duration in Texas
 
95.  
1-day duration in Texas
 
96.  
2-day duration in Texas
 
97.  
3-day duration in Texas
 
98.  
5-day duration in Texas
 
99.  
7-day duration in Texas

Tables

1.  
National Weather Service hourly precipitation stations for South Texas region
2.  
National Weather Service hourly precipitation stations for western North Texas region
3.  
National Weather Service hourly precipitation stations for southwestern Oklahoma region
4.  
Regional values for L-moments of 6-, 12-, and 24-hour precipitation annual maxima and corresponding parameters for selected distributions in South Texas region
5.  
Regional values for L-moments of 6- and 12-hour precipitation annual maxima and corresponding parameters for selected distributions in western North Texas region
6.  
Regional values for L-moments of 12-hour precipitation annual maxima and corresponding parameters for the GEV distribution in southwestern Oklahoma region
7.  
Depth-duration frequency of precipitation annual maxima for South Texas region derived from Asquith (1998) and alternative regional frequency analysis
8.  
Depth-duration frequency of precipitation annual maxima for western North Texas region derived from Asquith (1998) and alternative regional frequency analysis
9.  
Depth-duration frequency of precipitation for the 12-hour duration in southwestern Oklahoma region

Abstract

Ninety-six maps depicting the spatial variation of the depth-duration frequency of precipitation annual maxima for Texas are presented. The recurrence intervals represented are 2, 5, 10, 25, 50, 100, 250, and 500 years. The storm durations represented are 15 and 30 minutes; 1, 2, 3, 6, and 12 hours; and 1, 2, 3, 5, and 7 days. The maps were derived using geographically referenced parameter maps of probability distributions used in previously published research by the U.S. Geological Survey to model the magnitude and frequency of precipitation annual maxima for Texas. The maps in this report apply that research and update depth-duration frequency of precipitation maps available in earlier studies done by the National Weather Service.




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