[Docs update] Review Glossary of terms to ensure all key terms are covered

[odscjen]

Review Glossary of terms as per initial review (e.g. still missing a definition of Loss).

[matamadio]

Loss

Disaster risk is expressed as the likelihood of loss over exposed elements. Direct disaster losses refer to directly quantifiable losses such as the number of people killed and the damage to buildings, infrastructure and natural resources. Indirect disaster losses include declines in output or revenue, and impact on wellbeing of people, and generally arise from disruptions to the flow of goods and services as a result of a disaster. Losses are usually measured over a period, or normalised as Annual Expected Damage (EAD) or Annual Average Losses (AAL).

(UNDRR 2019)

[stufraser1]

Suggesting to add instead:

Loss

The effect of a disaster on people, buildings and society is referred to as the impact. Losses are a measure of the damage or destruction caused by a disaster and may be monetary or non-monetary losses. Direct disaster losses refer to directly quantifiable losses such as the number of people killed and the damage to buildings, infrastructure and natural resources.

Wider impacts include longer-term social and economic effects, for example in education, health, productivity or in the macro economy. Indirect disaster losses include declines in output or revenue, and impact on wellbeing of people, and generally arise from disruptions to the flow of goods and services as a result of a disaster.

The impact of disasters can also generate gains, and not only losses, for some people and economies, for instance the demand for construction material and expertise following a disaster. It is therefore necessary to think of disasters in terms of both impacts and losses.

Source: Adapted from (UNDRR)

Economic Loss

Total economic impact that consists of direct economic loss and indirect economic loss. Direct economic loss is the monetary value of total or partial destruction of physical assets existing in the affected area. Direct economic loss is nearly equivalent to physical damage. Indirect economic loss is a decline in economic value added as a consequence of direct economic loss and/or human and environmental impacts.

Source: UNDRR Terminology (Economic Loss)

People affected

People who are affected, either directly or indirectly, by a hazardous event. Directly affected are those who have suffered injury, illness or other health effects; who were evacuated, displaced, relocated or have suffered direct damage to their livelihoods, economic, physical, social, cultural and environmental assets. Indirectly affected are people who have suffered consequences, other than or in addition to direct effects, over time, due to disruption or changes in economy, critical infrastructure, basic services, commerce or work, or social, health and psychological consequences.

Source: UNDRR Terminology (Affected)

[stufraser1]

I'm not sure we should include the data images here. I see why they're included, but my concern is they focus people too much onto the data without any explanation. Especially showing vulnerability curves without any context of what the chart shows / how to read it. Would prefer this glossary to not include the data images, and save these for the examples section.

[matamadio]

I'm not sure we should include the data images here. I see why they're included, but my concern is they focus people too much onto the data without any explanation. Especially showing vulnerability curves without any context of what the chart shows / how to read it. Would prefer this glossary to not include the data images, and save these for the examples section.

Got it. Figures can indeed be moved to example section instead.

Some edits to make the loss definitions quicker and better link the concept of loss with impact - also rephrasing disaster impact definition. Bullet points can be turned into plain text.
Suggesting to keep together "loss" with "economic loss": they are all pieces of the same concept, thus repeating same information.

Disaster impact
The effect of a disaster on people, buildings and society is generally referred to as the impact. The impact of disasters can generate losses, but also gains for some people and economies; for instance, the demand for construction material and expertise following a disaster. It is therefore necessary to think of impact in terms of both gains and losses.

Source: Adapted from (UNDRR)

Loss
Losses are a measure of this impact in the form of damage or destruction caused by a disaster (observed or modelled). This measure may be expressed as monetary (e.g. cost of reconstruction) or non-monetary (e.g. hectars of crop loss, loss of life). Losses can be direct or indirect.

• Direct disaster losses refer to directly quantifiable losses such as the number of people killed and the damage to buildings, infrastructure and natural resources.
• Indirect disaster losses refer to wider and longer-term impacts arising from the direct disruptions to the flow of goods and services as a result of a disaster. This includes declines in output or revenue, increase of food prices, and other longer-term social and economic effects on education, health, productivity, well-being of people or the macro economy.

The total economic impact consists of a monetary estimate of both direct disaster loss and indirect disaster loss.

Source: Adapted from (UNDRR)
and UNDRR Terminology (Economic Loss)

Impact model
An impact model (also damage model; loss model) is used to combine Hazard, Exposure and Vulnerability components to calculate the amount of value that is expected to be damaged or lost. It is used to calculate direct or indirect loss.

Source: GFDRR, Solving the Puzzle, 2016

People affected
People have been exposed and impacted, either directly or indirectly, by a hazardous event. Directly affected are those who have suffered injury, illness or other health effects; who were evacuated, displaced, relocated or have suffered direct damage to their livelihoods, economic, physical, social, cultural and environmental assets. Indirectly affected are people who have suffered consequences, other than or in addition to direct effects, over time, due to disruption or changes in economy, critical infrastructure, basic services, commerce or work, or social, health and psychological consequences.

Source: UNDRR Terminology (Affected)

[odscjen]

closed by #171