4. Checkpoint Answer Key: Understanding a Drought Index
Answers
- What is the start date of the phase 1 contract? 1-May
- For the start date, what does the number in parentheses represent? The dekad or 10-day period in of the year in which the contract will begin
- What is the end date of the phase 1 contract? 30-June
- What is the trigger of the phase 1 contract (mm)? What does this mean? 13mm: This means that there will only be a payout if rainfall is less than 13mm
- What is the exit of the phase 1 contract (mm)? What does this mean? 7mm: This means that if there is less than 7mm of rainfall, there will be a full payout.
- If the total rainfall during the contract window is 10mm, will there be a payout? If Yes, would this be a partial or full payout? Yes (partial payout)
- What is the maximum amount of rainfall that is counted for each dekad? 25mm
- According to this example contract, how many phase 1 payouts would there have been in the last 15 years? 3
- What years would have paid out for the 1st phase? 2000, 2004, 2009
- Which year would have paid out the most? What percentage of maximum payout? Why does the percent of maximum payout received change for different years? 2000, 97%: The percent of maximum payout received changes for different years because the rainfall would have been at different levels between the trigger and the exit.