Discontinuous timeseries for Precipitation Data

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ammara talib
ammara talib 2015-12-2
评论： per isakson 2015-12-4
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I have discontinuous time series precipitation data but some days, the time step is 15 minutes and for some days the time steps is 5 minutes. I need either 5 minute time step data or 15 minutes. I tried to use linear interpolation but results are not correct. Any idea to generate constant time step data? Doing it on excel is very time consuming.Because data is for two years (5 and 15 minutes time step)
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ammara talib
ammara talib 2015-12-4
units are inches. I have separate data for daily precipitation. I used interpolated time series (5 minute time step) and then accumulate it on daily basis then compared it with the daily data (original daily data). data does not match.
per isakson
per isakson 2015-12-4
"data does not match" &nbsp Isn't that what one should expect?
Assume you have 24 hours of constant rain of 0.01 inches per 15-minute. That will result in 60/15*24*0.01 = 0.9600 inches for that 24-hour period.
Now interpolate to get 5-minute values. Each 5-minute value will be 0.01 inches. The sum for the 24-hour period will now be 60/5*24*0.01 = 2.8800 inches.

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