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Archive for the ‘wildfire risk’ Category

Utilizing Tools of the Trade for Land and Natural Resource Management

Saturday, April 2nd, 2016

At Esri FedGIS 2016 I sat in on a session, entitled, “Land and Natural Resources Management – Effective Planning, Analysis and Communication.”

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GISCafe’s 2016 Trends Report

Friday, January 8th, 2016

Top trends that we can expect to see dominating the geospatial landscape in 2016 are trends driven in large part by world events and climate change. Technologies play a large part in how well we will be able to manage climate change and attendant disasters, world events that include terrorism, and disease.

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Contribute Ideas to our Trends/Predictions Article for 2016!

Monday, December 14th, 2015

Hello Readers!

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21st Conference of the Parties to the United Nations Framework Convention on Climate Change (COP21/CMP11) to Convene in Paris Monday

Tuesday, November 24th, 2015

France will chair and host the 21st Conference of the Parties to the United Nations Framework Convention on Climate Change (COP21/CMP11), from 30 November to 11 December 2015. The conference is crucial because the expected outcome is a new international agreement on climate change, applicable to all, to keep global warming below 2°C, a level that would ensure safety of the planet’s fragile resources. If that level is not achieved, it could have devastating consequences on world populations and survival.

One of the challenges of the Paris agreement, where heads of state will all gather, will be to establish a periodic – ideally five-year – review mechanism to raise the ambition of each Party and progressively improve the collective effort toward keeping global warming below 2°C.

Each country represented will obviously have reasons to participate but also issues, largely economic and political, that may create a climate of resistance to the review mechanism.
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GISCafe at GEOINT 2015

Monday, June 15th, 2015

Next week GISCafe will be flying to GEOINT 2015 Symposium held June 22-25 at the Walter E. Washington Convention Center in Washington, D.C.

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CoreLogic Wildfire Risk Analysis Data Pinpoints High Risk Areas in the U.S.

Thursday, April 2nd, 2015

CoreLogic recently released new wildfire data, the CoreLogic Wildfire Risk Analysis, that states that nearly 900,000 single-family homes across 13 states in the western U.S. are currently designated at “High” or “Very High,” risk for wildfire damage, representing a combined total reconstruction value estimated at more than $237 billion. Of the total homes identified, just over 192,000 homes fall into the “Very High Risk” category alone, with total reconstruction cost valued at more than $49.6 billion. Other categories include “Moderate” and “Low” risk. GISCafe spoke with Dr. Tom Jeffery of CoreLogic to find out the scoop on this important new information for homeowners, insurance companies and other stakeholders.

Dr. Tom Jeffery: In the past we used what’s called the assessed property value which is based on tax assessment. We’ve actually changed that so it matches what we do with storm surge which is reconstruction value of these homes. This is going to be the cost of labor and materials in each of the different locations to replace the structure that would be lost in the event that a wildfire destroyed the whole thing. California is right at the top of the list, in most cases, because of wildfire risk throughout the state, but Colorado and Texas are also states that are usually ranked very high. They continue to do so through this report. There is one overarching factor that pops out whenever we do these reports. When we see results for the first time, we see how many homes are at risk in the total U.S. and what those values are. They are exceptionally high in those areas.

GISCafe Voice: What determines what states are ranked high?

TJ: Because you have large population centers in California, Texas and Colorado, and those urban areas that continue to grow, the pace of the growth is going to grow from year. All three of those states continue to have urban expansion and new homes constructed continue to push out into areas that have higher risk. There’s a lot of risk in those three states as well. A lot of people and a lot of risk is a combination that put those three to the top of the list.

GISCafe Voice: How do you assess the risk score?

TJ: The risk score itself is really based on several factors we combine, the first is the risk on the property, and that determines our categories of high, moderate high and very high, those determine the risk on the property. It’s based on what fuel is there, based on vegetation, if there’s change of terrain, if there’s a steep slop which enhances the risk, that determines the category. But for the score we actually want to look outside the property boundary to risk in close proximity to that property. So if you own a property maybe you have a nice manicured lawn, decorative trees, you don’t have any risk on the property. But just outside the boundary there could be a lot of chaparall in Southern California, for instance, a dense conifer or pine forest, in other areas. If that exists really close to your property that raises the risk value.

So we measure the distance from a property to what’s around it in terms of risk and then we add that to the category or risk on the property, and we add that to the score. The score is going to be 0-100 numeric-based and anything that’s 80 and above is extremely high risk. We have those broken out in the tables, so you can see even though if you look at the U.S. as a whole, there are going to be 192,000 properties that are listed as very high. And that’s looking at the risk on the property. As soon as we look at the score – and the score 81-100, we go from 192,000 all the way up to 1.1 million. So really those homes on the urban edge pushing out in to the wilder areas are the ones that the score is picking up and that’s why the scores are jumping from 192,000 to 1.1 million. It’s the homes that don’t have the risk within their borders and boundaries but have it just outside that are at most risk.

GISCafe Voice: What are insurance companies concerned with when they consult with you?

TJ: Most of those discussions with insurance company representatives revolve around mitigation, which is, how can homeowners reduce the risk on the property and which properties need that? More and more insurance companies have to write these policies and there are so many high risk policies they can’t ignore. What they’re trying to do more and more is identify the high risk properties, then identify ways they can talk to land and homeowners and clear brush around the homes, make sure it’s not a wood shake roof, all these things do to reduce the risk on higher risk. It helps homeowner in the long run because it’s less risk for their home, also helps insurance companies so they both benefit from things homeowners can do to reduce risk on property.

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