BRITTA's ACIS [ Sodpct ]

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Sodpct
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This program computes precentiles for each day based on empirical
distributions. Elements include max, min and
mean temperature, degree days, daily temperature range,
precipitation, snowfall and snowdepth.  The user selects 
the starting and ending year.  Distributions are         
empirical rather than fitted to theoretical distributions.
Separate values are calculated for each day of the year. 
The values for any given day are determined from the next
1 to 30 days, starting on that day (a user-selectable    
quantity).  (The use of additional days increases the    
sample size, and smooths the day-to-day variations.)     
Furthermore, these values can be based on individual     
daily values, or on averages (or sums, for some elements)
for the next (n) days.

Input:
    Coop Station Id(s)                  dddddd, dddddd
    Start date                          yyyy
    End date                            yyyy
    Individual Values or Averages?             
    Element                             e.g. pcpn
    Threshold
    Above or Below Threshold
    Accumulate over season?             True or False
    Begin month (of season)
    Number of days to look ahead

Sample Output:

Mon - Month
 Dy - Day
 Nd - Number of days lumped together, commencing on this date
 M - Method of aggregation:
 I - Individual Days
 A - Averages or sums over the period
 Low - Lowest in sample
 Num - Number of years used in this day's sample
 High- Highest in sample
Station: (266779) RENO TAHOE INTL AP
START YEAR 2000 END YEAR 2011
ELEMENT pcpn UNITS Hundredths of Inches
INDIVIDUAL OBSERVATIONS FOR THE DAY(S) STARTING ON THE LISTED DATE

Mon Dy  Nd  M   Num  Low    5%   10%     20%     25%     30%    33.3%    40%   50%    60%   67.7%    70%     75%     80%     90%  95%   High
1   1   1   I   11  0.00    -   0.00    0.00    0.00    0.00        T      T     T      T       T   0.01    0.03    0.12    0.32    -   0.36
1   2   1   I   11  0.00    -   0.00    0.00    0.00    0.00        T      T     T   0.04    0.04   0.07    0.16    0.25    0.75    -   1.33
1   3   1   I   11  0.00    -   0.00    0.00    0.00    0.00        T      T     T   0.04    0.07   0.10    0.17    0.25    0.75    -   1.33

Notes:

Station selection:
Variable:
Individual averages:
Threshold: