- Real-Time Flash Flood Forecasting - Oxford Research Encyclopedia of Natural Hazard Science
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- JAPAN: Flood
Real-Time Flash Flood Forecasting - Oxford Research Encyclopedia of Natural Hazard Science
Want climate news in your inbox? Sign up here for Climate Fwd: , our email newsletter. The reasons are complex. Despite the recent onslaught of disasters, people tend to underestimate the odds of something bad happening to them, behavioral economists say. For 50 years, the federal government has offered subsidized flood coverage through the National Flood Insurance Program, which is run by FEMA and provides about 95 percent of all residential flood policies in the United States. But earlier this decade, Congress instructed the agency to let rates rise so they more closely reflect the true risk of flooding.
As a result, average premiums have been rising between 5 percent and 9 percent a year, and the increase can be as high as 18 percent for individual homeowners.
For many people, that financial burden can be considerable. Of the households in the floodplain that have flood insurance, about one-quarter are low-income, the data show. Dick Thomas, a year-old retired laborer in Craig, Mo. Now they are trying to decide what to do next. Thomas said. We took a chance, and it bit us. Even as the Trump administration has cut programs and regulations designed to curb climate change, it has tried to make flood insurance a priority, with little success. Nationwide, only about a third of all homes in the floodplain have flood insurance, according to Dr.
In , after eight years of falling flood insurance purchases, the agency announced a goal of doubling the number of flood policies by That remains a distant target. The number of federal flood insurance contracts had increased just 3. The agency estimates the increase during that period is 5 percent if private flood policies are included.
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The number of total policies had fallen from a peak of 5. The number of federal policies in Illinois has fallen about 20 percent since , according to data provided by the state; in Missouri and Kansas, it dropped by almost one-third since FloodTags is a big help for us, especially for the fast-tracking of non-passable areas and damages.
Tweets turned into flood maps that could help save lives. BARCELONA T homson Reuters Foundation - Spontaneous tweets about major floods are being turned into a mapping tool that could be used by emergency services and disaster response teams to save lives and provide aid, Dutch researchers said. When a crisis strikes, people increasingly find out about it from social media, as individuals and groups take to the internet to spread the word.
After the Indonesian capital Jakarta was hit by floods this February, related tweets peaked at almost a minute, with a significant number including information about location and water depth, according to a joint study by two Dutch organizations, Deltares and Floodtags. Read more. Yes definitely. Most importantly, the data must be public. If people post something to their friends alone, we cannot use it. If they post it on a public Facebook page from your organisation, we can ingest with little problems.
You are right that Twitter is not as popular in one place as it is in the other. Besides a few tweets we have found that there are always some tweets when it floods , there public messages are shared on blogs, forums, public Facebook pages, flickr etc. These sources can be ingested and made available for you.
On a different timescale within hours after start of an event much more data becomes available from various news media. These describe the local situation often in great detail.
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Indeed online media data is written by people, which makes the data source subjective. To still be able to use it as a trustworthy datasource, together with our scientific partners, we determine the reliability and relevance of the online media content in three steps. Depending on the use-case, we can optimize precision versus recall.
For instance Philippine Red Cross has a high tolerance for false positives, but they are much averse to false negatives. Another Client a museum we work for has high tolerance for false negatives, but what is shown has to be true no false positives. Starting point in The Philippines was that even without requesting people to report on a new floods there are a massive amount of photos and observations circulating online. Rather that asking communities to report, we wanted to benefit from what is already out there. Of course the next step is to engage with the people and the communities directly, and collect even more information.
You can specifically request your volunteers or citizens actively to post about the situation they are in and the results would mean an even better understanding of the local situation. This is also what we are preparing now. Building on the information that we receive by passive listening, as FloodTags we deliver the data to:.
Totally agree. If you think your staff could help in this that would be great! Via an interface we deliver a website , they would need to point out which word is an event is interesting.
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If your staff could help here that would be fantastic. Secondly, for the easiness of the uptake, we would like to explore together with the staff on how to show the results of the software. To know the best way to share the results, we request the input of your staff. FloodTags is a hosted software solution that can be connected to via an API or front-end dashboard under a subscription. We charge separately for Client specific new feature development. The code itself is shared with our Clients and can freely be used so you can also choose to host and maintain the resulting software and configuration yourself.
We are working on the license to go fully open source. People share. We listen. Real-time monitoring. Historic event detection. Download Brochure. Who we are FloodTags analyses online media and user generated content for water management and food security.