2.2. Calculating the LVI–IPCC: IPCC framework approach
We developed an alternative method for calculating the LVI that incorporates the IPCC vulnerability definition. Table 2 shows the organization of the seven major components in the LVI–IPCC framework. Exposure of the study population is measured by the number of natural disasters that have occurred in the past 6 years, while climate variability is measured by the average standard deviation of the maximum and minimum monthly temperatures and monthly precipitation over a 6-year period. Adaptive capacity is quantified by the demographic profile of a district (e.g., percent of female-headed households), the types of livelihood strategies employed (e.g., predominately agricultural, or also collect natural resources to sell in the market), and the strength of social networks (e.g., percent of residents assisting neighbors with chores). Last, sensitivity is measured by assessing the current state of a district's food and water security and health status. The same sub-components outlined in Table 1 as well as Eqs. (1), (2) and (3) were used to calculate the LVI–IPCC. The LVI–IPCC diverges from the LVI when the major components are combined. Rather than merge the major components into the LVI in one step, they are first combined according to the categorization scheme in Table 2 using the following equation: