Calculating the Total Annual Precipitation
The objective of this step is to calculate the total annual depth of precipitation from a given precipitation time series . We have used the 15 minutes interval historical precipitation data, recorded at the weather station - COOP:122309 during the period 01/01/2000 - 12/31/2000, for this exercise.
Students demonstrate their understanding of precipitation time series records and the total annual precipitation in a region.
- Students learn to identify the units of the downloaded precipitation data.
- Students learn to calculate the total annual precipitation for a region from the precipitation time series using MS Excel.
- Numerical Data: Precipitation time series derived from 15-minutes interval historic precipitation data at NCDC station COOP-122309 : Precipitation time series (Excel 2007 (.xlsx) 26kB Sep7 15)
- Numerical Value: Total annual precipitation in the watershed
Precipitation data recorded in the NCDC dataset typically has the units: one-hundredth of an inch. Lets divide these values by 100 to get the precipitation time series in inches. Now, the total annual precipitation in your watershed is simply the sum of these precipitation values recorded in the year 2000. Very straightforward, isn't it ?
Additional Activities and Variants