«

»

Jul 09 2012

A Few Good Reads (7/9/12): Fatal Flooding in Russia

This week: Worst flooding in 70 years in Krasnodar, Flood policy reforms, CVFPP plan solid but could’ve done more, drought in the southwest only worsens, and accuracy versus resolution in lidar.

Russia flash floods: Dozens die in Krasnodar region (BBC)

The floods, the worst there in living memory struck at night, reportedly without warning.

Emergency teams have been sent from Moscow by plane and helicopter. TV pictures showed people scrambling onto their rooftops to escape.

At least 88 people died around the worst-hit town of Krymsk.

Crude oil shipments from the Black Sea port of Novorossiysk have suspended.

Russian TV showed thousands of houses in the region nearly completely submerged.

Update (7/9/12 10:00)

Russian Flood Deaths Reach 171 (cbc news)

Torrential rains dropped up to 300 millimetres of water in less than 24 hours, which the state meteorological service said was five times the monthly average. The water rushed into the hard-hit town of Krymsk early Saturday with such speed and volume that residents said they suspected that water had been intentionally released from a reservoir in the mountains above. Local officials denied this, saying it was not technically possible to open the sluices.

A Big Win For Flood Policy Reforms (American Rivers)

However, development continues in unsafe places, flood damages continue to rise, and the program owes $20 Billion to the federal taxpayers. The program actually encourages development in the floodplain, which harms rivers and floodplains.

The reform bill addresses many of these problems. It reauthorizes the NFIP for 5 years and contains reforms that will discourage unwise development, encourage floodplain restoration, improve communication of flood risk and put the program on sound financial footing.

Editorial: Central Valley flood plan a disappointment, but a step ahead(Sacramento Bee)

The plan set priorities for $17 billion in flood control investments, including billions of bond funds already approved by voters. To its credit, the plan goes beyond mere strengthening of existing levees and urges the state to widen floodways and bypasses at critical locations.

To its detriment, the plan is frustratingly vague on where and when those improvements should take place – a disappointment after four years of public meetings and work.

Dying Trees in Southwest Set Stage for Erosion, Water Loss in Colorado River (ScienceDaily)

The widespread dieback of these tree species is a special concern, scientists say, because they are some of the last trees that can hold together a fragile ecosystem, nourish other plant and animal species, and prevent serious soil erosion.

Lidar – Accuracy Versus Resolution (Digital Coast)

Accuracy is a measure of how closely the measured values are believed to be to the true values.  In the case of lidar points or a digital elevation model, it’s the accuracy of the elevation that we’re talking about. The point spacing generally refers to how far apart the measurements are. For a digital elevation model, this would be the grid spacing or resolution.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>