Navigation Links
More accurate FEMA flood maps could help avoid significant damages and losses
Date:1/23/2009

itional mapping methods among three distinct topographical regions: mountains, rolling hills, and coastal plains.

The costs for improving flood maps would come from collecting, updating, modeling, and analyzing the flood-related data; increasing construction of property and businesses; losing land to development; updating regulations; and informing the public of changes. The committee found that these costs would be outweighed by benefits of more accurate flood maps, including reduced loss of life, property, and businesses; more efficient planning and response for emergency services; and preservation of natural functions of floodplains. In addition, better maps would provide more reliable measures of flood hazard, which would enable more targeted land-use regulations and structures to be insured at appropriate levels. Maps that include estimates of the height flood water will rise or exceed during a 100-year flood provide significantly more benefits than those that do not.

FEMA commonly produces maps using data from the U.S. Geological Survey National Elevation Dataset (NED), which is developed from airborne and land surveys. However, map accuracy would be increased by updating and generating information using high-accuracy topographic data, such as that generated by "lidar," which measures elevation using aircraft-mounted lasers, the committee said. For the three topographical regions studied, differences in ground elevation measurements by lidar and NED were about 12 feet, with the lidar heights measuring both higher and lower than the NED. These differences significantly affect predicting the extent of flooding, the committee stated. Overall, the total areas of floodplains defined from lidar and from the NED were similar in two study regions and differed in shape by 20 percent in one study region. As lidar data coverage is sparse, FEMA should increase collaboration with federal, state, and local government agencies to acquire lidar data
'/>"/>

Contact: Jennifer Walsh
news@nas.edu
202-334-2138
National Academy of Sciences
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Forsyth scientist receives major grant to support rapid, accurate, affordable test for tuberculosis
2. First at-home test for vasectomized men proves to be safe, accurate
3. New test promises quicker, more accurate evaluation for cystic fibrosis patients
4. Pictometry and First American Combine Accurate Parcel Addressing With 3-D Like Intelligent Images(TM)
5. Immune system protein accurate predictor of survival in pediatric septic shock
6. Rainfall and river networks prove accurate predictors of fish biodiversity
7. New research suggests biofuel blending is often inaccurate
8. Swish-and-spit test accurate for cancer
9. Safer, more accurate radiation therapy for expecting mothers
10. Scripps scientists develop new tests that identify lethal prion strains quickly and accurately
11. Voice Biometrics Gains Traction as Most Accurate and Convenient Technology to Secure Customer Privacy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2014)... University researchers are using magnetic beads and DNA "springs" ... used as microscale models for polymer macromolecules. , The ... theory in the 1950s, can be made as stiff ... interest to materials scientists who study the basic physics ... and biomolecular engineer Sibani Lisa Biswal and graduate student ...
(Date:7/28/2014)... help advance the genetic engineering of "fuel" crops ... developed by researchers with the U.S. Department of ... partnership led by Lawrence Berkeley National Laboratory (Berkeley ... that enables scientists to identify and characterize the ... the biosynthesis of plant cell walls. , "Our ...
(Date:7/28/2014)... killers to prevent and treat HIV infection has been ... these molecules can arouse as they get rid of ... the Weizmann Institute and the National Institutes of Health ... molecules interferons around the time of infection ... disease. Their research appeared in Nature . ...
Breaking Biology News(10 mins):Seeing is bead-lieving 2How sweet it is 2How sweet it is 3Interfering with interferon 2
... has identified a genetic variant that substantially increases the ... populations. The study, published by Cell Press on August ... , associates a deletion on chromosome 3 with increased ... that affects 1% of the world population. Characterized by ...
... scientists have been able to measure the amount of water that ... result -- 285 billion metric tons, or 285 cubic kilometers of ... over half the volume of Lake Erie, which is the world,s ... of the water flowing through the Amazon River every year, and ...
... Swine Flu. Rabies. These are emerging infectious diseases where ... another and now infect humans. This is a phenomenon ... to determine what drives it. Gary McCracken, a ... head in Ecology and Evolutionary Biology, is one of ...
Cached Biology News:Large risk schizophrenia marker revealed 2First satellite measurement of water volume in Amazon floodplain 2First satellite measurement of water volume in Amazon floodplain 3UT professor uncovers clues into how viruses jump from hosts 2
(Date:7/28/2014)... The National Model Aviation Museum, located at ... to announce that it has been granted full civilian ... States Air Force. , The certification is the culmination ... spring with an on-site inspection by Sarah Sessions, Museum ... National Museum of the United States Air Force ...
(Date:7/25/2014)... study by researchers from the University of Leicester ... function, unlocking the potential to create new materials ... has been published in the prestigious academic journal ... laser technique to examine in rich detail the ... cluster containing an acetylene molecule and a single ...
(Date:7/25/2014)... California (PRWEB) July 25, 2014 Lawrence ... named to Thomson Reuters list of " The World's ... are part of the 3,000 researchers who were identified ... to recognize those who published the highest-impact work (2002-2012 ... research papers on combustion modeling . , "This ...
(Date:7/24/2014)... -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") announced the ... Phase 3 study of Zerenex (ferric citrate), the Company,s ... of hyperphosphatemia in patients with end-stage renal disease (ESRD) ... delivery with FErric CiTrate in EsrD) was published online ... of Nephrology ( JASN ). , ...
Breaking Biology Technology:AMA’s National Model Aviation Museum Granted Full Civilian Museum Certification by the National Museum of the United States Air Force 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3Scientists Burst onto Influential List for Combustion Research 2Scientists Burst onto Influential List for Combustion Research 3Scientists Burst onto Influential List for Combustion Research 4Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 4
... Senior clinical executives from top ... met recently at the US offices of Shire ... for a global competition to recognise and encourage ... The US Clinical Researcher of the Year ...
... disease, brain neurons become clogged with tangled proteins. ... malfunctions in a little-known regulatory system within cells. ... about this particular regulatory system in mice. Such ... other diseases in humans and could eventually provide ...
... 16, 2012 Cord Blood America, Inc . ( ... umbilical cord blood stem cell preservation company focused ... families nationwide and internationally, today announced that revenues for 2011 ... in 2010.  The Company announced a gross profit increase in ...
Cached Biology Technology:Quality Standards Established for Competition to Identify Best Researchers in the US 2Study dusts sugar coating off little-known regulation in cells 2Study dusts sugar coating off little-known regulation in cells 3Study dusts sugar coating off little-known regulation in cells 4Cord Blood America Revenues Up 37 Percent to $5.67 Million in 2011 2
Human beta IG-H3 MAb (Clone 348506) Keywords: BIGH3, betaIG-H3 Protein Family: Extracellular Matrix Molecules...
Human Siglec-9 Biotinylated Affinity Purified Pab...
... an inhibitor of caspase-3/7 ... of inhibitor required to ... be determined empirically for ... inhibitor is sufficient to ...
Human RELT/TNFRSF19L MAb (Clone 238104)...
Biology Products: