Hi everybody,
For calculating RIsk Index, once I got following formula in an elsevier site. Now, I am not getting that site in anyway (after three days continuous searching) and I did not find appropriate reference. Can you give me the reference of this formula? Do you know any other suitable formula for such risk assessment and would you please share that?
TA = (1 - H^r) ^ L
RI = 1 - TA
Where,
H = Frequencies of event of natural disaster
L = Severity in terms of percentage of loss of crop due to disaster event
R = risk perception value in a 0-1 decimal scale.
TA = Threat assessment from disaster event, severity and risk perception
RI = Risk Index
Thanks in advance,
Kazi
This formula is merely a complex variation of the fundamental approach that disaster risk (R) combines hazards (H) and vulnerabilities (V). Depending on purpose, units, and data, it could be a simple as R=HxV or you might wish to integrate over time independent or interdependent functions of H and V.
Here, it appears as if V relates to crop damage. Perhaps it is parameterised in terms of value lost or volume lost? It is unclear what H is, but presumably some form of the tail-end distribution of rainfall, lack of rainfall, wind, hail, other weather, or a combination.
More on definitions is at https://doi.org/10.1007/s13753-018-0188-3
Note that we prefer to avoid the "natural disaster"
1. https://doi.org/10.1016/j.pdisas.2019.100008
2. https://global.oup.com/academic/product/disaster-by-choice-9780198841340?cc=gb&lang=en&
It is particularly important to differentiate between "disaster" and "hazard".
Please see the following latest papers for an updated idea on risk index, which goes beyond the typical consideration of Hazard and Vulnerability, and how this knowledge science can be integrated with other concepts to have a broader range of information for effective decision-making and policy-relevant implications.
Article Risk assessment for the sustainability of coastal communitie...
Deleted research item The research item mentioned here has been deleted
Ilan Kelman and Muhammad Sajjad - Ph.D. , thank you so much for your sharing!
https://dl.sciencesocieties.org/publications/aj/abstracts/105/1/85
Title: Predicting Risk from Reducing Nitrogen Fertilization Using Hierarchical Models and On-Farm Data
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