366
--- .... co
100
en
10
E ....
o
- en
'0
....
E
:J
C
OJ
o
1 o 10 20 30
o Phoenix
• Needles
o Indio
40
50
Storm size I mm
J.R. Ehleringer
60
Fig. 18.3. The frequency distribution of storm sizes for sites receiving different average
amounts of precipitation in either winter (November-May) or summer (June-October)
seasons. Calculations are based on data from the US Weather Bureau records (NOAA)
during the period 1929-1979. A storm is defined as the total cumulative precipitation at a
site in a contiguous time period (typically 1-3 days)
E
E
c
o
:z:;
CO
-
.6.
()
c..
CO
c
o en
CO
300
r = 0.81
• winter
0 summer
200
100
•
•
0
OL..-~L..----L--~----'---~--'
o
10
20
30
Number of storms per season
Fig. 18.4. The correlation between mean precipitation in either winter (November-May)
or summer (June-October) seasons at a location and the number of storms. Calculations
are based on data from the US Weather Bureau records (NOAA) during the period
1929-1979. The combined correlation is significant at the P < 0.01 level
--- .... co
100
en
10
E ....
o
- en
'0
....
E
:J
C
OJ
o
1 o 10 20 30
o Phoenix
• Needles
o Indio
40
50
Storm size I mm
J.R. Ehleringer
60
Fig. 18.3. The frequency distribution of storm sizes for sites receiving different average
amounts of precipitation in either winter (November-May) or summer (June-October)
seasons. Calculations are based on data from the US Weather Bureau records (NOAA)
during the period 1929-1979. A storm is defined as the total cumulative precipitation at a
site in a contiguous time period (typically 1-3 days)
E
E
c
o
:z:;
CO
-
.6.
()
c..
CO
c
o en
CO
300
r = 0.81
• winter
0 summer
200
100
•
•
0
OL..-~L..----L--~----'---~--'
o
10
20
30
Number of storms per season
Fig. 18.4. The correlation between mean precipitation in either winter (November-May)
or summer (June-October) seasons at a location and the number of storms. Calculations
are based on data from the US Weather Bureau records (NOAA) during the period
1929-1979. The combined correlation is significant at the P < 0.01 level