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| | Land Subsidence |
 | | The intent of the committee was to inventory subsidence zones and fissures and to investigate related issues. | | | The implementation of the Groundwater Management Act and the completion of the CAP project are to relieve the state of its reliance on groundwater reserves. | | | The committee, which represented the only state-wide effort to address subsidence/fissure problems, was not granted any appropriations. |
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http://ag.arizona.edu/azwater/arroyo/062land.html
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| | Abandoned Mine Lands - Mine Subsidence |
| | If, under reasonable circumstances, the potential for mine subsidence should be known, the local political entity, if applicable, shall require a landowner, public agency or public utility to evaluate the potential for mine subsidence and to adopt, where appropriate, preventative measures under or within the angle of draw of the structure, roadway or utility. | | | When buildings are damaged as a result of mine subsidence most insurance policies do not automatically cover the damage to your home. | | | If there is no political entity responsible for issuing development permits, a landowner, public agency or public utility must perform subsidence evaluation in conjunction with other site development considerations. |
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http://www.dnr.state.oh.us/mineral/ask/subsidences.htm
(691 words)
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| | GeoFacts No. 12, Mine Subsidence |
| | The Ohio Mine Subsidence Insurance Underwriting Association estimates the cost of the damage payments for the 50 claims totalled $1,189,000. | | | In addition to the cost of mine-subsidence insurance claims, since 1980 the Ohio Division of Mineral Resources Management and the U.S. Office of Surface Mining and Reclamation have treated 74.4 acres of mine subsidence at an estimated cost of $8,111,000. | | | For information concerning mine-subsidence insurance, call the Ohio Fair Plan, Mine Subsidence Insurance Underwriting Association at 1-800-282-1772 or 614-839-6446. |
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http://www.dnr.state.oh.us/geosurvey/geo_fact/geo_f12.htm
(1810 words)
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| | Yolo Subsidence Monitoring Project |
| | Subsidence could place previously unaffected properties in the flood plain, and could similarly result in the removal of some currently affected areas from requiring flood plain insurance. | | | Because of the differential nature of subsidence a denser network of leveling was required, driving the cost up higher yet. | | | This network provides the basis for monitoring subsidence in the county with an accuracy suitable to meet all participating agency requirements. |
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http://www.yarn.org/subsidence/about.html
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| | Harris-Galveston Subsidence District |
| | Fort Bend Subsidence District adopts new regulatory plan establishing groundwater reduction requirements for certain permittees of 30% by 2013 and 60% by 2025. | | | Harris-Galveston Subsidence District adopts its most recent regulatory plan establishing an ultimate groundwater reduction goal for north and west Harris – to reduce groundwater pumpage to 20% of total water demand by 2030. | | | Several studies released linking the relationship between groundwater withdrawal and subsidence (1954: Winslow and Doyle; 1959: Winslow and Wood; 1969: Gabrysch) |
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http://www.subsidence.org/history/History_index.html
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| | subsidence on Encyclopedia.com |
| | Don't let subsidence send your house price tumbling Insurance companies, reluctant to take on homes that have been underpinned, are jeopardising sales. | | | Personal Finance: Beware dreaded sinking feeling; In the first of a series on insurance issues, Peter Axon looks at the problems faced by owners of houses affected by subsidence and discovers the blight which it can bring to a properties, both old and new.(Features) |
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http://www.encyclopedia.com/html/s1/subsiden.asp
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| | Pittsburgh Pennsyvania cheap affordable Mine Subsidence Insuranceand insurance planning |
| | In the late 1950's, the private insurance industry excluded mine subsidence coverage from standard homeowners insurance policies due to costs and difficulties associated with the highly technical nature of mine subsidence claim investigations. | | | In 1961, the Commonwealth of Pennsylvania established the Mine Subsidence Insurance Fund to provide a reliable source of insurance against losses caused by underground coal and clay mine subsidence. | | | DEP strongly encourages those who own structures in the coal and clay mining regions of Pennsylvania to contact the insurance professional who provides their homeowners insurance and ask them if Mine Subsidence Insurance coverage is needed. |
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http://www.driscollfinancial.com/MINE%20SUBSIDENCE.htm
(325 words)
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| | MSB - Claiming for Mine Subsidence Damage |
| | Other important roles are the elimination of public and private danger caused by mine subsidence and the provision of a comprehensive and accessible advisory and technical service. | | | The offer to purchase would be at market value, as if no mine subsidence damage had occurred. | | | Sometimes final repairs must be deferred because subsidence is not complete. |
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http://www.minesub.nsw.gov.au/brochure/claiming.htm
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| | Subsidence Sensitivity Study for Low-Level Waste in Slit Trenches |
| | Thus, short-lived radionuclides that were not important in the PA could become important when subsidence is considered. | | | The global subsidence results should hold true for all radionuclides. | | | Information generated by this subsidence study can help in the selection of one or more subsidence scenarios for consideration in establishing waste acceptance criteria. |
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http://sti.srs.gov/fulltext/rp2000524/rp2000524.html
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| | Rapid subsidence over oil fields measured by SAR interferometry |
| | All of these techniques: (1) measure changes in locations of a limited set of benchmarks, (2) require a large number of individual observations to map the subsidence distribution, (3) require ground access, and (4) are generally costly to acquire. | | | One recent estimate placed the annual cost of subsidence damage and mitigation within the U.S. alone at over $100 million [National Research Council, 1991]. | | | One disadvantage is that SAR interferometry only measures one displacement component, but the operating satellite systems are most sensitive to vertical motions, which is appropriate for subsidence. |
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http://www-radar.jpl.nasa.gov/s323/IntSARapps/LH-Belridge_GRL.html
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| | The Citizens Voice - News - 12/24/2005 - Underground mine subsidence closes Pittston street |
| | Kuhns said the repair project, which will cost an estimated $60,000, involves backfilled the underground subsidence through a manhole. | | | However, the amount entering the Callaios' home is lower than explosive levels, according to Mark Carmon of the state Department of Environmental Protection. | | | He is not worried about a subsidence, either. |
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http://www.citizensvoice.com/site/news.cfm?newsid=15813727&BRD=2259&PAG=461&dept_id=455154&rfi=6
(564 words)
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| | Rebuilding New Orleans: Subsidence and Sea-Level Rise are the Greatest Threats |
| | Anyone who owns or plans to purchase New Orleans real estate should understand not only the hurricane risk, but also the subsidence and sea level rise risks. | | | These costs of protecting the city from seepage and storms will become more expensive than practical. | | | Hurricane Katrina was one of 17 hurricanes to pass near the city since 1852. |
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http://www.prweb.com/releases/2006/2/prweb342239.htm
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| | Coal Mine Subsidence Theory |
| | Subsidence usually occurs gradually when it is concurrent with mining. | | | The concept takes into account one of the most important observed facts regarding subsidence; namely, that the surface area affected is larger than the mined out area. | | | After cessation of mining, subsidence may continue to occur in a steady, gradual manner, or it may stop for a period, to be followed by failure at some later date. |
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http://www.mines.edu/fs_home/tboyd/Coal/sub_theory
(781 words)
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| | Technical, Measuring Subsidence, Overview - Harris-Galveston Subsidence District |
| | Over the years, subsidence measurement methods have evolved from manual site measurement of benchmarks to satellite-based technology, and for the Subsidence Districts, the goal has always been the same: to monitor the effects of groundwater withdrawal within our area(s), and to take appropriate actions based on those measurements. | | | Through these sophisticated groundwater and subsidence models, we can predict the results of future groundwater pumpage. | | | All land measurement systems have been developed and controlled by the National Geodetic Survey (part of the National Oceanic and Atmospheric Administration – NOAA). |
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http://www.subsidence.org/technical_information/measure/measure_index.html
(318 words)
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| | Land subsidence |
| | The district also actively monitors for land subsidence through benchmark surveying, groundwater elevation monitoring, and data from compaction wells. | | | County voters approved the creation of the district in the early 1930s partially to protect groundwater resources and minimize land subsidence. | | | The district surveys hundreds of benchmarks each year to determine if there has been any change in the land surface elevation. |
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http://www.valleywater.org/Water/Where_Your_Water_Comes_From/Local_Water/Groundwater/Subsidence.shtm
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| | IMSIF: What Is Mine Subsidence? |
| | If you have purchased or are considering purchasing a home with unrepaired mine subsidence damage, please note that repairs must be made before it will be eligible for mine subsidence coverage on future occurrences. | | | This coverage is available from all insurance companies licensed in the State of Illinois. | | | If mine subsidence is the cause, it is likely that several of these problems will develop. |
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http://www.imsif.com/mine.htm
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| | Subsidence and its Effect on the Tucson Basin |
| | Earth fissures are widened by erosion, which has a serious economic impact as structures are damaged, property values decrease, and the cost of new construction increases. | | | Subsidence causes many problems, therefore it needs to be studied and the problems may be solved. | | | Problems that may occur due to subsidence include changes in elevation, destruction of underground piping, strain on buildings and other structures, and a change in ability to continue pumping groundwater(2). |
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http://ag.arizona.edu/swes/tucwater1/subside.htm
(1293 words)
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| | AZGS Geologic Hazards |
| | A number of governmental agencies have responsibilities that require them to know the location of subsiding areas and associated fissures. | | | Slow, large-scale subsidence is occurring in several portions of the State. | | | Subsidence usually occurs so slowly that it is undetectable unless careful land surveys are made or until the cumulative effects become apparent. |
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http://www.azgs.az.gov/hazards.htm
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| | Subsidence Projects |
| | Findings of the study facilitated mine closure and reclamation planning. | | | Berms to protect prime farmland from innundation had to be sited and designed and surface subsidence effects quantified, in prior employment. | | | The issues for permitting were leakage pathways, geomembrane liner stresses, and extent of subsidence, in prior employment. |
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http://www.agapito.com/subsidence_projects.htm
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| | People's Daily Online -- Beijing launches pre-warning, forecast system for ground subsidence |
| | The bureau called it an "urgent and significant" task to step up survey, monitoring and prevention of ground subsidence. | | | Three monitoring stations, covering 1.8 hectares and costing 26.2 million yuan (3.2 million US dollars), have been constructed as the first phase of the project, said the system's joint sponsors, the Beijing Municipal Land and Resources Bureau and the Beijing Municipal Geological Prospecting Bureau. | | | Ground subsidence is a serious geological problem that makes global urbanization difficult, according to the Beijing Municipal Geological Prospecting Bureau. |
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http://english.peopledaily.com.cn/200407/23/eng20040723_150623.html
(456 words)
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| | Conservation of Ground Environment |
| | Two laws have been enacted and enforced to reduce the yields of groundwater. | | | Relationship between Subsidence Areas and the Amounts of Annual Precipitation | | | In order to implement comprehensive countermeasures in the greatly subsided areas (see map), the "Outline of Measures for Preventing Ground Subsidence" was established by the council of concerned Ministers for the Nobi Plain, Chikugo-Saga Plain, and the northern part of the Kanto Plain. |
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http://www.env.go.jp/en/pol/wemj/ground.html
(545 words)
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| | Subsidence and Fault Activation Related to Fluid Energy Production, Gulf Coast Basin Project |
| | Evaluate geophysical methods for regional subsidence detection and monitoring. | | | Examine the environmental changes such as reductions in land elevations and elimination or replacement of plant communities; | | | The results of these investigations will provide a basis for designing marsh and barrier-island restoration projects, planning hurricane levees, and managing oil and gas production. |
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http://coastal.er.usgs.gov/gc-subsidence
(314 words)
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| | Land Subsidence From Ground-Water Pumping |
| | Several methods are available to monitor land subsidence. | | | Land subsidence occurs in nearly every state of the United States (figure 1). | | | Overdrafting of aquifers is the major cause of subsidence in the southwestern United States, and as ground-water pumping increases, land subsidence also will increase. |
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http://geochange.er.usgs.gov/sw/changes/anthropogenic/subside
(908 words)
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| | Scoop: Another report rejects subsidence damage |
| | Mr Hunt said Contact Energy has invested a great deal of time and resource in an independent and transparent process to determine if buildings in the Taupo region had been negatively impacted by subsidence. | | | This has included Contact Energy purchasing two Invergarry Road houses to enable them to be comprehensively monitored on an ongoing basis. | | | âAll of the independent reports into the buildings identified by the Taupo District Council clear them of any subsidence related damage,â he said. |
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http://www.scoop.co.nz/stories/BU0601/S00236.htm
(1100 words)
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| | AWBD-Texas |
| | To receive e-mail notification of information of interest to AWBD members, become a member of AWBD’s KNOWNOW Network. | | | District Regulatory Plan (DRP) - The Subsidence District has adopted a revised District Regulatory Plan. | | | Click here to complete your Member Survey and then mail or fax to the office. |
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http://www.awbd-tx.org
(459 words)
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| | Subsidence - Wikipedia, the free encyclopedia |
| | The opposite of subsidence is uplift, which results in an increase in elevation. | | | This type of subsidence can similarly be caused by extraction of other resources, e.g. | | | An extreme form of subsidence is a downburst, which can result in damage similar to that produced by a tornado. |
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http://en.wikipedia.org/wiki/Subsidence
(571 words)
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| | Land Subsidence in the United States Fact Sheet |
| | Land Subsidence in the United States Fact Sheet | | | Natural solution-related subsidence has occured in each of the major salt basins in the United States (Ege, 1984). | | | Subsidence is a global problem and, in the United States, more than 17,000 square miles in 45 States, an area roughly the size of New Hampshire and Vermont combined, have been directly affected by subsidence. |
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http://water.usgs.gov/ogw/pubs/fs00165
(2041 words)
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| | Write-up - 1.2 Non-tectonic deformation: Subsidence |
| | Between 1994 and 1989 however, the deformation rate had decreased to 2.7 cm/yr. | | | The PIDs (serial number) of benchmarks with an elevation changes which differs from the predicted coseismic elevation changes by more than 3 cm are labeled. | | | Subsidence rates were calculated relative to a BM which was adjacent to the subsidence feature and in incompressible rock. |
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http://pasadena.wr.usgs.gov/fema/html/FEMA-1.2.html
(1963 words)
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| | Subsidence Inversions - Harold F. Maybeck |
| | The use of the various flight instruments on board the aerostat may also be used to instrumentally recognize, and calculate the intensity of, a subsidence inversion. | | | The base of subsidence inversions may vary from about 6,000 feet to around 18,000 feet, but usually range in the 8,000 to 12,000 foot range. | | | A subsidence inversion can be recognized in flight using the flight instruments usually found on board the aerostat. |
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http://www.maybeck.com/inversions
(2513 words)
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| | 3-D Seismic Tomographic Imaging for Abandoned Mine Subsidence Characterization : Case Histories - Geotechnical Hazards ... |
| | Developing the means to cost-effectively, yet comprehensively characterize site conditions during the geotechnical evaluation or construction of a project is critical to minimize project risk and ultimately, project costs. | | | To evaluate the extent of the subsidence zone that may occur due to mine entry/tunnel collapse. | | | Based on field studies of sinkhole subsidence previously performed in Boulder County (Matheson, 1987), the expected extent of the rubble zone and angle of draw were superimposed on the tomography results and related to the planned location and bearing horizon of the bridge caissons. |
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http://www.fhwa.dot.gov/mine/haramy.htm
(1565 words)
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| | Land subsidence |
| | This can result in a permanent reduction in the total storage capacity of the aquifer system. | | | Land subsidence occurs when large amounts of ground water have been withdrawn from certain types of rocks, such as fine-grained sediments. | | | • USGS Fact Sheet 165-00 Land Subsidence in the United States. |
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http://ga.water.usgs.gov/edu/earthgwlandsubside.html
(539 words)
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| | Subsidence |
| | To get a feel for whether the subsidence caused by this load would be significant, we assume the load was deposited at a constant rate over the last 100 years and we further assume that the sediment was all deposited in an area of 100 km². | | | Ground subsidence is expected to result from the subsequent compaction of the aquifer. | | | Tide gauges in the Chesapeake Bay indicate that sea level there is rising at twice the global average. |
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http://www.ngs.noaa.gov/GRD/GPS/Projects/CB/SUBSIDENCE/subsidence.html
(359 words)
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| | Subsidence |
| | Subsidence has happened all around the United States. | | | Also when you read some of my pages you'll probably might need to know what this one word means. | | | Scientists have studied it and figured out what causes subsidence. |
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http://www.promotega.org/wga05029/Subsidence.html
(98 words)
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| | NOAA Magazine Online (Story 101) |
| | However, in cooperation with state and local agencies, the NOAA Ocean Service is implementing a two-stage (near-term and long-term) approach to address coastal subsidence issues. | | | Land loss rates have fluctuated over the years and recent studies show the rates have been reduced from 39 square miles per year between 1956 and 1978 to 24 square miles per year from 1990 to 2000. | | | As a result, other NOAA offices have become actively involved in subsidence- related issues: |
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http://www.magazine.noaa.gov/stories/mag101.htm
(1861 words)
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| | News Record |
| | PICHER — A small portion of residents in the Picher Housing Authority learned Thursday that they will likely have to vacate their homes due to concerns of subsidence. | | | The housing authority is encouraging residents to attend the upcoming town hall meeting where a team responsible for the subsidence report will present full report of its findings. | | | The study, according to Sparkman, indicates a 20-percent probability of collapse at depths of 2 to 10 feet in an area supporting 24 housing units in the south end of the authority’s southern complex. |
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http://www.miaminewsrecord.com/articles/2006/01/28/news/news2.txt
(610 words)
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| | Coal Mine Subsidence |
| | Under the act, coal operators must also repair any subsidence damage to property or water supplies. | | | The act allows carefully planned and controlled subsidence and requires that coal operators work to minimize any potential damage. | | | Friday, Sept. 6, 2002, the federal government filed its opening brief in appeal of a decision in which the U.S. District Court for the District of Columbia banned underground coal mine subsidence in large areas of the country. |
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http://www.doi.gov/news/020911.htm
(207 words)
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| | Title page for Thesis adt-WCU20030303.093159 |
| | Once these two areas of work were completed, design criteria were formulated to manage the effects of mining subsidence by controlling the critical mechanisms of subsidence development. | | | Mine planning engineers can now use this design information to derive the most cost effective methods for the extraction of coal within the Collie Basin. | | | The results from this study have greatly enhanced the level of understanding of the subsidence mechanisms involved, and allowed for the development of predictive models which can be used for the design of coal extraction by the panel/pillar mining method in the Collie Basin. |
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http://adt.curtin.edu.au/theses/available/adt-WCU20030303.093159
(239 words)
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| | MSI Homepage |
| | Subsidence woes beset businesses in P. Hills » |
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http://www.dep.state.pa.us/dep/deputate/minres/bmr/msipage/msi_info.htm
(49 words)
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| | Coal, Coal Mines, and Mine Subsidence |
| | If the overburden is less than 100 feet, the risk of subsidence is high. | | | The Pennsylvania Department of Environmental Protection in McMurry (724-941-7100) can evaluate your property and determine if mine subsidence insurance is warranted. | | | If the overburden is greater than 200 feet, the risk is low. |
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http://www.lebonature.org/nmark2.html
(416 words)
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| | subsidence |
| | Subsidence is an essentially irreversible process, not greatly ameliorated by later raising the water table. | | | This is more likely to occur in areas where the aquifer varies in thickness, such as near the edges of groundwater basins. | | | Uneven rates of subsidence over an area can lead to differential subsidence, which can cause lateral movement of the land surface, and cracks and fissures to appear. |
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http://ag.arizona.edu/AZWATER/reference/glossary/subsid.html
(102 words)
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| | USGS California - Land Subsidence: Results from Dr. Joseph F. Poland Symposium |
| | Recently, the Association of Engineering Geologists published AEG Special Publication No. 8, 'Land Subsidence Case Histories and Current Research', which includes the symposium proceedings. | | | The final chapter, 'Resource-Management, Legal, and Political Issues', brings together scientific case studies of land subsidence and discussions of resource-management options that may minimize subsidence-related damage to infrastructure and the environment. | | | Because the book blends history, current research, and timely resource-management/political/legal issues, it should serve as a historical and technical reference, and provide insight to the public decision-making processes that directly influence the occurrence and magnitude of land subsidence with which our society must contend. |
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http://ca.water.usgs.gov/groundwater/sub/poland_sym.html
(637 words)
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| | Maybeck |
| | Subsidence Inversions - A brief discussion of atmospheric temperature inversions and their recognition and application in lighter-than-air flight, by |
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http://www.maybeck.com
(149 words)
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| | Louisiana - Wikipedia, the free encyclopedia |
| | State and Federal government efforts to halt or reverse this phenomenon are under way; others are being sought. | | | Owing to the extensive flood control measures along the Mississippi river and to natural subsidence, Louisiana is now suffering the loss of coastal land area. | | | Near the coast, there are many salt domes, where salt is mined and oil is often found. |
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http://en.wikipedia.org/wiki/Louisiana
(3629 words)
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| | Newspaper reports of coal mine subsidence and collapse |
| | Picture: Councillors Bill Hughes and Derrick Huckfield approach another hole at Crackley Gates. | | | A singular and fatal casualty occurred on Monday afternoon, at a colliery at Cobridge, on the estate of the Misses Adams, by a portion of the bottom of a fish pond giving way, consequent on the mining operations being carried on too near the surface. | | | Newspaper reports of coal mine subsidence and collapse |
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http://www.thepotteries.org/geography/collapse.htm
(895 words)
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| | Homecheck - FREE guide to your Environment |
| | Welcome to Homecheck the ultimate FREE guide to flooding, subsidence, pollution, landfill sites, schools, property prices and crime rates in your neighbourhood. | | | To check a neighbourhood, just enter a postcode. | | | Sorry, this web site can only be viewed properly with a frames-capable browser. |
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http://www.homecheck.co.uk
(140 words)
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| | National Mining Association Legal Issues |
| | This action leaves in tact the June 3, 2003 decision of the court, which reversed the lower court’s decision and upheld the Office of Surface Mining’s interpretive rule recognizing that the effects of subsidence are not "surface coal mining operations." | | | The United States Court of Appeals for the District of Columbia Circuit denied a petition for rehearing by the Citizens Coal Council in Citizens Coal Council v. | | | The court also denied the Citizens Coal Council’s petition for rehearing EN BANC. |
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http://www.nma.org/policy/legal/legal_issues03.asp
(475 words)
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| | South America - Hutchinson encyclopedia article about South America |
| | The continent's summer rainfall is of a monsoonal type, but differs from that of Asia in that there is no movement outwards of high-pressure air owing to the continent being as a whole warmer than the surrounding seas during all seasons. | | | South America is a compact land mass and has a fairly regular coastline, except in southern Chile, where sunken valleys have resulted from subsidence that has left mountain peaks as islands. |
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http://encyclopedia.farlex.com/South+America
(696 words)
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| | Gulf Publishing Company |
| | A new Windows based software package that quickly, easily and reliably calculates thermodynamic and transport properties of gaseous, liquid and solid species, analyzes power cycles, power cycle components/ processes and compressible flow. | | | The most complete, authoritative engineering treatment of the dehydration and gas purification processes used in industry today. | | | This book provides many insights on the subject of gas migration and its possible important applications such as land subsidence and prediction of earthquakes. |
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http://www.gulfpub.com/default.asp?page=5&firstRequest=type&ptDescription=Bo...
(5900 words)
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