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Natural Hazards

Impacts

Navigating the Ongoing and Predicted Disaster of Rio Grande do Sul (Brazil): Career and Insights with Expert Prof. Enner

June 17, 2024
Severe flooding that left the metropolitan region of Porto Alegre, the capital of Rio Grande do Sul, Brazil, submerged.

We are honoured to hear from Dr. Enner Alcântara, Professor at the São Paulo State University (UNESP) and leader of the Remote Sensing, Spatial Analysis, Environmental Modelling and Natural Disasters Research Group. His research in remote sensing has played a crucial role in recognising, managing and mitigating the impacts of disasters, bringing out significant contributions. Today, we’ll ex ...[Read More]

The 2023 Carnival disaster in São Paulo: an all time record for rainfall in Brazil

May 22, 2023
The 2023 Carnival disaster in São Paulo: an all time record for rainfall in Brazil

In February 2023, Brazil experienced its largest rainfall event on record, which devastated the northern coast of the state of São Paulo. This event caused landslides, floods, and numerous fatalities, making it even more tragic than previous disasters in the region, which already have been elaborated on in another blog post. The situation highlights the urgent need for effective emergency manageme ...[Read More]

Discovering the CoastSnap project – Interview with Dr Mitchell Harley

and February 13, 2023
Discovering the CoastSnap project – Interview with Dr Mitchell Harley

CoastSnap is a global citizen science project aiming at monitoring the changes in our coastlines due to processes such as storms, rising sea levels, and human activities using smartphones. We will discover more about this promising project by chatting today with Dr Mitchell Harley, founder of the CoastSnap program. Mitchell is a Researcher and Senior Lecturer in the School of Civil and Environment ...[Read More]

COVID-19 and natural hazards: a complex multi-risk scenario

January 16, 2023
COVID-19 and natural hazards: a complex multi-risk scenario

COVID-19 has been a disruptive ‘tsunami’ that most countries were not prepared to handle. The pandemic has been representing a global slow-onset long-lasting disaster that has drastically challenged all emergency management systems worldwide. The pandemic slow-onset disaster has been characterized by a prolonged emergency phase with varying intensity levels, and a cyclic behavior, where the interp ...[Read More]

Who’s afraid of Natech?

February 7, 2022
Who’s afraid of Natech?

Natural hazards that impact industrial sites and result in technological accidents, causing the release of hazardous substances, are referred to as Natech events. In the popular imagination, Natech accidents are triggered by major natural hazard events. However, experience tells us that low magnitude natural events, such as lightning or heavy rains, are sufficient to cause enormous adverse effects ...[Read More]

Define and assess drought, the herculean challenge!

November 29, 2021
Define and assess drought, the herculean challenge!

The frequency and intensity of drought periods have increased since the 1950s over most land areas [1]. In fact, between 1998 and 2017, drought was the sixth natural hazard associated with disasters (4.8% of the total number of disasters) but the second in terms of the total number of affected people (33% of the total number of affected people), causing more than 21,000 deaths [2]. For example, in ...[Read More]

Natural Hazards 101: Forecasting and modelling

September 6, 2021
Natural Hazards 101: Forecasting and modelling

With the Natural Hazards 101 series, we mean to bring our readers closer to the terminology often used in the field of natural hazards, but that may not be so familiar. In the first episode of the series, we focused on the definition of hazard and natural hazard. We moved then to the concept of risk, which brought us to define exposure and vulnerability. Later on, we digested the disaster terminol ...[Read More]

LANDAWARE: the international network on landslide early warning systems

May 17, 2021
LANDAWARE: the international network on landslide early warning systems

For today’s interview, it gives me great pleasure to host Dr Manfred Stähli, who will tell us about a new initiative in the field of Landslide Early Warning Systems (LEWS), which is attracting the attention and participation of researchers from many countries. This initiative is called LandAware. Manfred is a senior scientist in mountain hydrology, slope stability and early warning systems a ...[Read More]

Diagnosing drought in northeast Brazil

and May 3, 2021
A dam, an almost empty water reservoir and a small abandoned boat

Worldwide, drought has put lives and livelihoods under serious threat. People are increasingly suffering from drought, but we often also aggravate drought ourselves. Fortunately, solutions to drought problems are mainly in our own hands as well. Drought is not just a water problem. It is a societal problem.   Droughts: a local problem with global relevance In recent years, droughts seem to be ...[Read More]