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1. FORESTRY DEBRIS FLOW INFORMATION
- www.odf.state.or.us
- There are no debris flow advisories or warnings issued by the Oregon Department of Forestry currently in effect. Debris flows typically occur during periods of heavy rain between the months of November and February. ...
2. D/TOS Space Debris Activities
- www.esoc.esa.de
- Space Debris Activities at ESOC.
- Introduction to Space Debris.
- 1 mm the sporadic flux from meteoroids prevails over man-made debris. ...
- To assess the risk potential of collisions of man-made or natural particulates with operational spacecraft, one must resort to statistical models of the particle population for all size regimes except for man-made debris above 10 cm. ... - For the small-size debris current research concentrates on better estimates of the spatial distribution, and on improved mathematical fragmentation models to generate such a population. ...
- Currently, space debris between 1 cm and 10 cm are neither observable, nor are they shieldable with available on-orbit technology. ... The Role of ESOC in ESA's Debris Research Activities.
- The Mission Analysis Section of ESOC is coordinating all Space Debris Research Activities within ESA. ESA's activities are harmonised with European national space agencies, and with specialists from national organisations and institutes in Europe (via the Space Debris Advisory Group SDAG) and outside Europe (via the Inter-Agency Space Debris Coordination Committee IADC, consisting of ESA, Japan, NASA, PR of China, and the Russian Space Agency RSA). ...
- ESOC's main debris activities are oriented towards space debris and meteoroid environment models for the present and for the future, optical and radar observation campaigns of debris, prediction of re-entries of risk objects, and maintenance of a database on known ("catalog") space objects. The MASTER Debris and Meteoroid Environment Model:.
- ESOC's Meteoroid and Space Debris Terrestrial Environment Reference (MASTER) model can be used to assess the debris or meteoroid flux imparted on a spacecraft on an arbitrary earth orbit. MASTER uses quasi-deterministic techniques to determine flux information with high spatial resolution from a debris population derived from historic fragmentation events. ...
- Long-term forecasts of future trends in the evolution of the space debris population can be performed with softwares like CHAIN, which allow to study the effectiveness of debris mitigation measures (e. ... reduction of on-orbit explosions, de-orbiting of satellites at end of life) with respect to debris population stability. ...
- The database includes bibliographic references of space debris publications. ... Debris Activities in other ESA Establishments.
3. USGS Photo Glossary: Debris avalanche or volcanic landslide
- volcanoes.usgs.gov
- A debris avalanche rushes down the side of a volcano to the valley floor. Many such debris avalanches transform into lahars and travel tens of kilometers from the volcano. ...
- Debris avalanche.
- Debris avalanches are moving masses of rock, soil and snow that occur when the flank of a mountain or volcano collapses and slides downslope. As the moving debris rushes down a volcano and into river valleys, it incorporates water, snow, trees, bridges, buildings, and anything else in the way. Debris avalanches may travel several kilometers before coming to rest, or they may transform into more water-rich lahars, which travel many tens of kilometers downstream. ...
- Case studies volcano debris avalanches (landslides).
- Historical debris avalanches.
- Pre-historical debris avalanches.
- Debris avalanches at Mount Rainier volcano, Washington .
4. CVO Menu - Debris Avalanches and Volcanic Landslides
- vulcan.wr.usgs.gov
- USGS/Cascades Volcano Observatory, Vancouver, Washington Debris Avalanches.
- DESCRIPTION: Debris Avalanches and Volcanic Landslides -- includes Debris Avalanches and Volcanic Landslides. ...
- Maps and Graphics - Debris Avalanches .
- CVO Photo Archives - Debris Avalanches .
- Publications and Reports - Debris Avalanches .
- Adams (Mount Adams), Washington, Debris Avalanche - Menu .
- Bandai, Japan - 1888 Debris Avalanche -- Excerpt from: Brantley and Glicken, 1986, Volcanic Debris Avalanches: Earthquakes & Volcanoes, v. ...
- Bandai, Japan - Japan Volcanoes Menu -- includes Bandai 1888 Debris Avlananche .
- Catastrophic Debris Flows Transformed from Landslides in Volcanic Terrains: Mobility, Hazard Assessment and Mitigation Strategies -- Scott, K. ...
- Debris Dams and Debris Dam Lakes - Menu -- general information about debris dams and the lakes created by them .
- Galunggung, Indonesia - Debris Avalanche - Description .
- Galunggung, Indonesia - Indonesia Volcanoes Menu -- includes Galunggung Debris Avalanche .
- Gigantic Debris Avalanche of Pleistocene Age from Ancestral Mount Shasta Volcano, California, and Debris-Avalanche Hazard Zonation -- Crandell, 1989, USGS Bulletin 1861 .
- Glicken, 1996 -- Rockslide-Debris Avalanche of May 18, 1980, Mount St. ...
- Hazardous Phenomena at Volcanoes -- section on Volcanic Landslides and Debris Avalanches -- Myers and Brantley, USGS Open-File Report 95-231 .
- Hazards: Debris Avalanches -- Excerpt from: Hoblitt, et. ...
5. University of Chicago/ARGOS satellite experiment to study space debris
- www-news.uchicago.edu
- University of Chicago/ARGOS satellite experiment to study space debris .
- Above the atmosphere bits and pieces of debris zip around the Earth at tens of thousands of miles an hour. Some of these objects are natural cosmic dust, produced by comets, meteoroid impacts or other natural processes, while others are debris resulting from human activity in space. ...
- And although detection systems currently track the largest pieces of man-made debris, many more particles are too small to track, ranging in size from pebbles or sand grains down to particles that can only be seen with a microscope. ...
- Many of these particles are produced by collisions between larger debris objects, and so information about these particles is important for understanding the whole debris population in Earth orbit, said Bruce McKibben, Senior Scientist at the University of Chicagos Laboratory for Astrophysics and Space Research. ...
- ARGOSs scientific payload will include the Universitys space dust experiment (SPADUS), which will measure the mass, speed and trajectory of dust particles in low-Earth orbit, and will allow scientists to determine whether they are particles left in the wake of comets or man-made orbital debris. ...
- We will be able to tell whether the debris is uniformly distributed or in clouds around the Earth, and even whether theres a ring around the Earth, like Saturns, but very weak. ...
- This altitude is near a region heavily used by commercial, scientific and government spacecraft, where ground tracking of the larger objects indicates a concentration of man-made debris. ...
- Much of the current data regarding the quantity of debris particles in low-Earth orbit was collected by NASAs Long Duration Exposure Facility (LDEF) from 1984 to 1990. But LDEF could not distinguish between natural and man-made debris and could not determine where or when in its orbit an impact occurred. SPADUS will be able to do this by measuring the time of impact and the particle trajectory and velocity of debris with enough sensitivity to detect particles smaller than the particles contained in a puff of cigarette smoke. ...
- Man-made debris in a circular orbit races about the Earth at speeds of nearly 17,000 miles an hour. This debris consists of everything from rocket casings and dead satellites on down to the very small dust particles that can result from the grinding down of these large objects as they collide with each other and with dust particles already in orbit, McKibben said. ...
- Cometary debris, on the other hand, travels more than 25,000 miles an hour. ...
- Thats where the maximum of orbital debris is expected to be, Tuzzolino said. ...
6. Space Debris
- esapub.esrin.esa.it
- Space Debris.
- The space environment which surrounds the Earth is becoming increasingly polluted with debris. ...
- The vast majority of man-made debris comprises objects smaller than 10 cm which are not tracked during routine operations. ... The basic hazard in space caused by debris is damage or even destruction by collision. ... For some space missions space debris has already become a safety issue and active protection through shielding will be needed; the International Space Station is an example. ...
- Current debris control practices aim at reducing the growth rate. The total amount and mass of debris is still rising, since rate of removal of debris by natural mechanisms, such as air-drag perturbations, is exceeded by the rate of deposition in space of man-made objects. These practices, if unchanged, will sooner or later lead to a major increase in the amount of debris as a consequence of collisions between Earth-orbiting objects. To avoid the excessive and uncontrolled growth of space debris, ultimately more efficient and more costly mitigation measures must be taken. ...
- Space debris is an inherently international problem whose solution requires international co-operation. The Inter-Agency Space Debris Coordination Committee (IADC) whose members are ESA, Japan, NASA, and the Russian Space Agency RKA, provides a forum for discussion and coordination of technical space debris issues. ...
- ESA's research into space debris aims at achieving a better understanding of the critical issues, in particular the environment of the Earth and its future evolution, and measures for protection and mitigation. ...
- development of a meteoroid and debris reference model; .
- radar measurements of mid-size debris; .
- Detection of the six ODERACS spheres by radar ESA space debris and meteoroid reference model.
- A mathematical model is under development at the Technical University of Brunswick to describe the debris and meteoroid environment at altitudes between the low Earth orbit and the geostationary orbit. ...
7. CVO Menu - Mudflows, Debris Flows, and Lahars
- vulcan.wr.usgs.gov
- USGS/Cascades Volcano Observatory, Vancouver, Washington Mudflows, Debris Flows, and Lahars.
- DESCRIPTION: Mudflows, Debris Flows, and Lahars -- including debris flows. ...
- Debris-Flow Hazards Caused by Hydrologic Events at Mount Rainier, Washington -- Vallance, et. ...
- Maps and Graphics - Debris Flows and Lahars .
- CVO Photo Archives - Debris Flows and Lahars .
- Catastrophic Debris Flows Transformed from Landslides in Volcanic Terrains: Mobility, Hazard Assessment and Mitigation Strategies -- Scott, K. ...
- China Debris Flows, Jiangjia, Yunnan -- Scott, K. ...
- Debris Flow Flume - Project Menu .
- Detecting Debris Flows Using Ground Vibrations - Project Menu .
- Flume - Experimental Debris Flow Flume - Project Menu .
- Hazards: Lahars, Debris Flows, Mudflows -- Excerpt from: Hoblitt, et. ...
- Debris Flows. ...
- Maps and Graphics - Debris Flows and Lahars .
- Mass Movement Dynamics - Experimental Debris-Flow Flume - Project Menu .
- Mudflows, Debris Flows, and Lahars - Description .
- CVO Photo Archives - Debris Flows and Lahars .
8. USGS News Release
- www.usgs.gov
- The devastating Christmas Day mudslides, known to scientists as debris flows, were more widespread than most people realize, according to the U. ... Of those 66 basins, the USGS reports that 47 produced debris flows and 14 experienced significant flooding. With storms forecast in Southern California again, more debris flows and flooding can be expected. ...
- “Most people were only aware of one or two catastrophic debris flow events,” said Jim Bowers, a USGS scientist participating in the reconnaissance. ...
- The USGS organized the reconnaissance to make observations regarding debris-flow processes and identify factors that might be used to make better hazard potential maps and increase the overall effectiveness of hazard assessment. The scientists report that a large number of basins showed significant channel incision, up to nearly 20 foot in some places, and deposition of a large volume of boulders, mud and debris in the channels. ...
- “Evidence of historical debris-flow activity was observed in nearly every basin we visited,” said USGS landslide expert Sue Cannon. “This indicates that debris-flow is an ongoing and active process in the area. ...
- The USGS reconnaissance findings will be used to revise and update USGS debris flow maps available on the web at: http://pubs. ...
- More information about debris flows can be obtained from county flood control districts and county office of emergency services, and on the web at http://www. ...
9. Hurricane Debris
- www.stpete.org
- VIEW DEBRIS CLEAN-UP PROGRESS MAP (PDF).
- "We've already cleared many tons of debris," said City Services Administrator Lee Metzger. ...
- If you currently have debris in your yard, and are in a hurry to get rid of it, here's what city officials ask that you do:.
- Put whatever debris you are able to fit into your city garbage container. ...
- Take whatever debris you can transport safely to one of the city's five Brush Sites, open seven days a week (Monday through Friday from 9 a. ... ) If you don't have a truck or the ability to take your debris to a Brush Site, perhaps a neighbor or family member can assist you. ...
- As a last resort, place piles of debris on your curb or in rear alleys and request a special pick-up. ...
- To see how clean-up efforts are progressing, a PDF map, updated daily, shows areas already cleared of debris. ...
10. fires-flows
- landslides.usgs.gov
- What you should know about Wildfires, Debris flows, and other Types of Landslides (Posted November 13, 2003).
- Fire Related Debris Flows .
- Debris-Flow Hazards in the United States .
- Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Cedar and Paradise Fires of 2003, Southern California. ...
- Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Piru, Simi, and Verdale Fires of 2003, Southern California. ...
- Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Grand Prix and Old Fires of 2003, Southern California. ...
- Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Padua Fire of 2003, Southern California. ...
- Press Release by USGS outlines forecast of heavy rains in Southern California - possible debris flows in burned areas. ...
- USGS Press Release - Post-fire Debris-flow Hazards Shown on New USGS Maps. ...
11. The Problem With Marine Debris: Information Brought to You by the California Coastal Commission Public Education Program
- www.coastal.ca.gov
- Marine Debris & Wildlife | Marine Debris & Humans .
- This debris can harm or kill beach organisms. ...
- How Does Trash Become Marine Debris?.
- 1 Results of more than 10 years of volunteer beach cleanup data indicate that 60 to 80 percent of beach debris comes from land-based sources. And debris in the marine environment means hazards for animals and humans. Plastic marine debris affects at least 267 species worldwide, including 86 percent of all sea turtle species, 44 percent of all sea bird species, and 43 percent of marine mammal species. ...
- Impacts of marine debris: entanglement of marine life in marine debris including a comprehensive list of species with entanglement and ingestion records. ... ), Marine Debris -- Sources, Impacts and Solutions. ...
- How Marine Debris Harms Wildlife .
- Almost 90 percent of floating marine debris is plastic. ...
- How Marine Debris Harms People.
- Marine debris also endangers the safety and livelihood of fishermen and recreational boaters. ... In one Oregon port, a survey revealed that 58 percent of fishermen had experienced equipment damage due to marine debris. ...
- For every item we recycle or reuse, thats one less piece of trash that can become a part of the marine debris cycle threatening people and wildlife.
- The debris that we collect from our beaches is a symptom of a much larger water pollution problem that is caused by everyday people doing every day things. ...
12. United Press International: NASA axing orbital debris research program
- www.upi.com
- NASA axing orbital debris research program .
- JOHNSON SPACE CENTER, Texas, April 19 (UPI) -- Budget overruns are prompting the National Aeronautics and Space Administration to end its 23-year-old Orbital Debris Program Office on Oct. 1, space agency officials admitted on Friday, even though orbital debris is acknowledged as a serious problem for the space shuttle, International Space Station and satellites in low-Earth orbit. ...
- Space Command tracking data for debris large enough to be spotted by optical and radar telescopes on the ground. ...
- "There were nine explosions in orbit last year and each creates more and more debris," said Nicholas Johnson, head of the Johnson Space Center Orbital Debris Program Office, which since its founding in 1979 has been modeling the small particle debris environment, issuing forecasts, recommending preventative measures and assessing risks.
- "Radars cannot track small debris in the same manner as larger objects. ...
- The research also has been key to identifying sources of orbital debris and setting national and international guidelines for debris prevention and mitigation.
- "Over the last several decades, NASA has led an international effort to understand how the space environment is impacted by the presence of micrometeoroid/orbital debris," wrote the Aerospace Safety Advisory Panel. ...
- Proposed budget cutbacks would eliminate funding for the activities of this group, (depriving) the shuttle and station programs of updated knowledge on debris risks. ...
- Scientists warn that the orbital debris environment may become even more dangerous if the United States proceeds with plans to develop a space-based missile defense system -- whether from testing the system in space or in actual conditions of a missile attack.
- "The space debris aspect of a 'Star Wars' missile system is just not talked about in the public arena," said Primack, who was scheduled to present a paper on Friday at the United Nations Educational, Scientific and Cultural Organization headquarters in Paris.
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