HOME >> BIOLOGY >> NEWS
NASA data helps pinpoint wildfire threats

nts can be used to determine when conditions are favorable for wildfires.

"Improving the role of satellite data in wildfire prediction and monitoring through efforts like these is critical, since traditional field sampling is limited by high costs, and the number and frequency of sites you can sample," said Roberts. "This new data on the relative greenness of a landscape also allows us to see how conditions are changing compared to the past."

The satellite data worked best on landscapes where one plant type was dominant. The amount of vegetation cover in an area and its growth rate also influence the reliability of satellite data for wildfire prediction.

The study also found that in areas where branches and dead foliage often help spread fires, changes in the proportion of green vegetation to other plants may also indicate locations of potential fires, especially after moisture values fall below a critical level. The proportion of greenness determines the manner in which plants absorb and scatter sunlight and plays a major role in moisture retention.

Although scientists have long recognized the importance of moisture conditions in wildfire development, this research suggests that other variables may be just as significant. "While live fuel moisture values are critical in the development of wildfires, it's clearly not the last word. Even if vegetation is extremely dry, there are a number of other factors that influence whether a fire will develop and how quickly it spreads, including the ratio of live to dead foliage, plant type, seasonal precipitation, and weather conditions," said Roberts. "In Southern California, if a strong Santa Ana wind event occurs before our first major rainfall in the fall or winter, the risk for wildfire is significantly heightened."

As researchers continue to better understand wildfire development, they are also creating fire spread computer models that use wind speed and direction forecasts to determi
'"/>

Contact: Rob Gutro
robert.J.gutro@nasa.gov
301-286-4044
NASA/Goddard Space Flight Center
20-Dec-2006


Page: 1 2 3

Related biology news :

1. Genetic variation helps to understand predisposition to schizophrenia
2. Link between sunspots, rain helps predict disease in east Africa
3. Taking a supplement of glycine helps prevent degenerative diseases such as arthrosis or osteoporosis
4. Progesterone therapy and preterm birth: More evidence helps identify women who can benefit
5. Nanotechnology helps scientists make bendy sensors for hydrogen vehicles
6. Preconditioning helps protect brains blood vessels from stroke
7. Manchester University helps with pharaoh DNA analysis
8. A spoonful of sugar helps your waistline go down
9. Study helps preserve Arctic whale, Eskimo subsistence hunt
10. Ethanol injection helps manage bone metastasis in thyroid cancer patients
11. Fusing imaging technologies creates synergy, helps diagnose heart disease accurately

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/20/2016)... Jan. 20, 2016  Synaptics Incorporated (NASDAQ: ... solutions, today announced sampling of S1423, its newest ... and small screen applications including smartwatches, fitness trackers, ... round and rectangular shapes, as well as thick ... with moisture on screen, while wearing gloves, and ...
(Date:1/11/2016)... SAN JOSE, Calif. , Jan. 11, 2016 /PRNewswire/ ... developer of human interface solutions, today announced that its ... display driver integration (TDDI) products won two separate categories ... including Best Mobile Innovator and Best Technology Breakthrough. The ... overall system cost, a simplified supply chain, thinner devices, ...
(Date:1/7/2016)... Various factors have contributed to the ... biologics and biosimilars. Some of these factors include ... demand for cost-effective alternatives, growing burden of chronic ... versions of their corresponding patented biologic drugs, and ... and efficacy. The global biosimilars market is estimated ...
Breaking Biology News(10 mins):
(Date:2/6/2016)... ... February 06, 2016 , ... Contact:, Abby Mitchell, ... Excellence in Education Sponsors Teacher Training Program , Bite of Science Dinner Event ... Center for Excellence in Education (CEE) will sponsor a Bite of Science professional ...
(Date:2/5/2016)... 2016 Australian-US drug discovery and development company, Novogen ... of a new Chairman, Mr John O,Connor , and ... James Garner , has also been formally ... Acting CEO, Mr Iain Ross , will resume his ... James Garner , has also been formally appointed to ...
(Date:2/4/2016)... VA (PRWEB) , ... February ... ... cybersecurity conference presented by Bloomsburg University’s Digital Forensics Club, takes place February ... The two-day event features 20+ speakers and activities such as workshops and ...
(Date:2/4/2016)... ContraVir Pharmaceuticals, Inc. (NASDAQ: CTRV ), ... of targeted antiviral therapies, announced today that it will ... be held February 8-9, 2016, at the Waldorf Astoria ... & Healthcare Conference, taking place in New ... James Sapirstein , Chief Executive Officer of ContraVir, will ...
Breaking Biology Technology:
Cached News: