... records. It can affect estimates of sea level acceleration, in particular for tide gauge records with lengths ... tide on estimates of sea level trend and acceleration. By adding a term to the least squar...
NBII National Biological Information Infrastructure
The report examined the potential impacts of accelerated sea level rise on coastal wetlands in the United States and found that sea level could potentially have a large effect on future wetland losses. Nationwide, a five to seven foot rise in sea level ...
National Technical Information Service (NTIS)
Jun 16, 2011 ... Description: Global warming is expected to result in an acceleration of current rates of sea level rise, inundating many low-lying coastal ...
Treesearch
Multi-century sea-level records and climate models indicate an acceleration of sea-level rise, but no 20th century acceleration has previously been detected. A reconstruction of global sea level using tide-gauge data from 1950 to 2000 indicates a larger rate of rise after ...
NASA Astrophysics Data System (ADS)
... likely to accelerate the historical rise in sea level through warming of oceans and melting of ice, ... the U.S. coast. The impacts of sea-level rise will occur in coastal areas that are ... ...
... R. and Dean, R.G., 2011. Sea-Level Acceleration Based on U.S. Tide Gauges and Extensions ... level records and reported that they found no acceleration of sea-level rise. We show that this ... ...
... warming will accelerate sea-level rises due to thermal expansion of seawater and the melting of land-based ... ...
One of the most publicized impacts of global warming is a predicted acceleration of sea level rise. Water levels in San Francisco Bay could rise by 1.4 ...
NASA Website
... sea-level rise there likely occurred in the late 19th century, concomitant with the initiation of recent climate warming ( ... of this acceleration may have occurred in the late 19th century. If the timing...
... R. and Dean, R.G., 2011. Sea-Level Acceleration Based on U.S. Tide Gauges and Extensions ... Figure 1 purports to show good agreement between accelerations based on their modeling and accelerations based ...
An increase in melting of the ice sheet would accelerate sea-level rise, an issue affecting potentially billions of people worldwide. ...
and has accelerated to the present. Also implicated in marsh loss are rising sea level, a cumulative result of global warming and regional land subsidence, and annual marsh...
Science.gov Websites
... sector, superior employment opportunities, highest concentration of large workplaces, private investments, technology-intensive sectors, and export and ... ...
... using sea surface temperature, 3) determining whether light levels recorded by archival tags can be used to estimate chlorophyll a concentrations, 4 ...
DTIC Science & Technology
SES ships are known to have more favourable motions in high sea states than for instance catamarans. On the other hand, pressure variations in the air cushion might induce high levels of high-frequency accelerations in lower sea states, where other ships ...
Since the early 1990s, average global sea level has accelerated and is predicted to rise by 18-79 cm by the end of the 21st century with major adverse coastal and societal impacts. When such accelerations in sea level are synchronous on a global scale they record an ...
Sea Level Rise (SLR) is one of the major consequences we are facing in times of a warming climate and it is obvious that a higher sea level influences the heights of occurring storm surges and thus results in a higher risk of inundation for the affected coastal areas. Therefore, regional and global ...
The debate about climate change lingers, fueled by the complexity of weather patterns around the Earth. The oceans filter spatial and temporal changes in temperature, yielding an undisputable record of warming and expansion that manifests as accelerated sea level rise. The rate of rise in historical time is nearly 6 times the average ...
Instrumental observations indicate that sea-level rise has accelerated compared to average late Holocene trends reconstructed by geological methods. In proxy sea-level reconstructions from North Atlantic salt marshes this inflexion has been dated to the late 19th century or early 20th century. This paper documents inflexions in recent ...
Within the framework of a project aimed at understanding the behaviour of sea level in the North Atlantic realm over the last 500 years, the Icelandic sea-level history (Gehrels et al. 2006) is revisited. Earlier work at Vidarholmi salt marsh (N64�45', W022�26') resulted in a relative sea-level record with as ...
State coastal zone management programs are responding to the potential impacts of accelerated sea level rise through a wide range of activities and policies. The federal Coastal Zone Management Program (CZMP) responses to concerns about accelerated eustatic sea level rise ...
Energy Citations Database
Extreme sea levels are likely to increase in the future with an expected accelerated rise in mean sea level and through possible changes in storminess. Society is becoming more vulnerable to extreme sea levels due to considerable growth in human ...
The chapter on Oceanic Climate and Sea Level of the fourth assessement report written by the IPCC Working Group I summarized a number of recent results about sea level change (e.g.: recent observations based on satellite altimetry indicate that sea level is rising faster ...
Ice loss to the sea currently accounts for virtually all of the sea-level rise that is not attributable to ocean warming, and about 60% of the ice loss is from glaciers and ice caps rather than from the two ice sheets. The contribution of these smaller glaciers has accelerated over the past decade, in part due to marked thinning and ...
PubMed
... both with respect to roads and wharves, the insurance industry will have to take measures to be ... northern areas. In a study by Klemsdal (1996), insurance statistics from the Statens Naturskadefond (Nor...
Roll a ball (tennis ball, baseball, or softball) straight across a table and then ... an acceleration of 9.8 m/s2 (32 ft/s2) at sea level (neglecting air resistance). ...
... seasonal factors, weather systems, and variability of ocean water properties (temperature, salinity, etc.). Other longer term influences such as ENSO (up to 10 y) and PDO (20�30 y) will influence ocean wat...
Estimates of area-averaged, tidal bottom stress are made for four channel segments of the Great Bay Estuary, New Hampshire. Sea level and current measurements are used to estimate pressure gradient and acceleration terms in the equation of motion, while t...
Accelerated sea level rise and cultural eutrophication are anthropogenic stressors known to alter the structure and function of salt marsh ecosystems. Many salt marshes in Jamaica Bay (NY) are reported to be disappearing at an alarming rate, approximately 35 - 40 acres per year....
EPA Science Inventory
Oct 8, 2004... local thickening at some locations and thinning at others nearby. R EPORTS. 8 OCTOBER 2004 VOL 306 SCIENCE www.sciencemag.org. 258.
In the study, three independent teams of coastal researchers estimate future erosion at Ocean City through the year 2075. With accelerated sea level rise, beaches may erode up to an average of 813 feet by 2075, requiring as much as 40 million cubic yards ...
Understanding the broad-scale ramifications of accelerated sea level rise requires maps of the land that could be inundated or eroded. Producing such maps requires a combination of elevation information and models of shoreline erosion, wetland accretion, ...
... glacio-eustatic sea-level record: influence of glacial melting rates on the Younger ... Arctic Archipelago. Nature doi:10.1038/nature10089. Grinsted, A., ... ...
The melting of continental ice (glaciers, ice caps and ice sheets) is a substantial source of current sea-level rise, and one that is accelerating more rapidly than was predicted even a few years ago. Indeed, the most recent report from Intergovernmental Panel on Climate Change highlighted that the uncertainty in projections of future ...
Rising sea level poses critical ecological and economical consequences for the low-lying megadeltas of the world where dependent populations and agriculture are at risk. The Mekong Delta of Vietnam is one of many deltas that are especially vulnerable because much of the land surface is below mean sea level and ...
USGS Publications Warehouse
The present study aims to estimate a minimum time span of the global mean sea level time series (from TOPEX/Poseidon, Jason-1 and Jason-2 satellite altimetry) which is sufficient to detect a statistically meaningful trend in global sea level variation. In addition, the objective of this paper is also to seek a ...
This paper explains the precarious position of New Orleans. Global sea-level rise is projected to accelerate two-to four-fold during the next century, increasing storm surge and shoreline retreat along low-lying, unconsolidated coastal margins. The Mississippi River Deltaic Plain in southeastern Louisiana is particularly vulnerable to erosion and ...
NSDL National Science Digital Library
by sea level rise. Sea Level Rise Who will be affected by sea level rise as glaciers and ice caps melt? Find out by watching sea level rise animations for the World, individual...
Sea level is rising most places, but not everywhere. Apr 2005. Meto 401 .... motivated to measure sea level accurately since it's partly below sea level ! ...
Although the rapid subsidence of the last 50 years now appears slowed or even arrested in many cities, there has been almost no recovery in ground elevation, and many of the world's great cities remain vulnerable to flooding from the sea. The continuing rise in sea level challenges the engineering efforts designed to keep out ...
acceleration level) are typically measured during the science missions to characterize ... acceleration measurement instrument. Measuring the acceleration ...
NOAA logo El Niño Theme Page TAO logo Sea Level Data Global sea level data from the Sea Level Center at the University of Hawaii East Pacific sea level and sea surface...
In this study, we provide a determination of the 20th Century (1900--2002) global sea level rise, the associated error budgets, and the quantifications of the various geophysical sources of the observed sea level rise, using data and geophysical models. We analyzed significant geographical variations of the global ...
Weight shapes and locations are investigated for H2, H infinity, and the general mixed H2/H infinity optimization methodologies. The design model is normal acceleration command following for the F-16 (SISO) at Mach 0.6 and Sea Level, which yields a nonmin...
Assumptions of a static landscape inspire predictions that about half of the world's coastal wetlands will submerge during this century in response to sea-level acceleration. In contrast, we use simulations from five numerical models to quantify the conditions under which ecogeomorphic feedbacks allow coastal wetlands to adapt to projected changes in ...
reliable, while the Aral Sea evidence is equivocal. The authors recommend using ... Description: Documentation for Aral Sea and Caspian Sea lake level data ...
A search was made with a sea water sample taken at a depth of 4000 m for anomalously heavy hydrogen dating from the early Universe. A technique of accelerator mass spectrometry involving a time-of-flight spectrometer was used. A new upper limit for the concentration of heavy particles in hydrogen is set around 4[times]10[sup [minus]17] in the mass range of ...
... sea-state biases, wet and dry troposphere, inverse barometer, and orbit corrections. enlarge figure Figure 2 Satellite ... of 3.0 mm/y with the inverted barometer applied and the seasonal signal removed (...
A search was made with a sea water sample taken at a depth of 4000 m for anomalously heavy hydrogen dating from the early Universe. A technique of accelerator mass spectrometry involving a time-of-flight spectrometer was used. A new upper limit for the concentration of heavy particles in hydrogen is set around 4�10-17 in the mass range of 5-1600 u at a ...
The Army Corps of Engineers, Pacific Ocean Division, participated in the interagency case study of sea level rise for Yap State in the Federated States of Micronesia. The study, on behalf of the National Oceanic and Atmospheric Administration, was in support of the Intergovernmental Panel on Climate Change. Engineering and environmental analyses indicate ...
In this paper, mean sea level changes in the German Bight, the south-eastern part of the North Sea, are analysed. Records from 13 tide gauges covering the entire German North Sea coastline and the period from 1843 to 2008 have been used to derive high quality relative mean sea ...
Predicting exactly how - or whether - sea level will shift in response to global warming remains a significant challenge. Scientists trained in many separate disciplines are attempting to glean answers using a variety of experimental approaches, ranging from drilling into the Antarctic ice cap to bouncing radar off the ocean from space. With such efforts, ...
Whilst accelerated rates of relative sea-level (RSL) rise are potentially one of the most devastating impacts of future climate change, our understanding of decadal scale changes in sea-level is poor. This paper seeks to address this knowledge gap by combining tide gauge and high-precision geological reconstructions of relative ...
The present Cenozoic era is an �icehouse� episode characterized by a low sea level. Since the beginning of the industrial revolution, the human race has been emitting greenhouse gases, increasing the global atmospheric temperature, and causing a rise in sea level. If emissions continue to increase at the ...
In this activity, students will learn the difference between sea ice and glaciers in relation to sea level rise. They will create and explore topographic maps as a means of studying sea level rise and how it will affect Alaska's coastline.
... Title : SEA-LEVEL AND ROADSTEAD HYDROLOGICAL OBSERVATIONS IN AND ALONG SOVIET ARCTIC SEAS. Corporate ...
Most of the coastal wetlands of the South Atlantic region of the United States are expected to diminish in size in response to increasing human population growth and accelerating rates of rising sea level. after examination of the distribution of wetlands, elevation contours, estimates of surface slope, soil types, and peat deposits on ...
Fluctuations in sea level rise rates are thought to dominate the evolution of coastal wetlands. Indeed, many salt marshes developed during a late-Holocene deceleration in sea level rise, vertical accretion rates commonly mimic rates of sea level rise, and observations of ...
... Title : Accelerated Decompression from Saturation at 132 Feet of Sea Water With Isobaric oxygenation at 60 Feet of Sea Water. ...
... Accession Number : ADA337208. Title : An Instrument for Recording Accelerations and Inclinations in Determinations of the Force of Gravity at Sea. ...
During the last ice age there was a large ice sheet over much of Canada and the northern U.S. What was the effect on global sea levels? a. Sea level was higher b. Sea level was lower c. Sea level was the same as ...
The relative elevation of sea and land has been changing through time in response to two fundamentally different groups of factors. Global factors include changes in the volume of the ocean basins owing to tectonic processes and changes in the total amount of ocean water due to glaciation. Local factors include subsidence of continental margins and compaction of recent ...
The last deglaciation has been characterized by a rapid sea-level rise and coeval abrupt environmental changes. The Barbados coral reef record suggested that this period has been punctuated by two brief intervals of accelerated melting (Melt Water Pulses), occurring at 14,000 and 11,300 cal. yr. BP, superimposed on a smooth and continuous rise of ...
Global sea-level rise due to the thermal expansion of the warming oceans and freshwater input from melting glaciers and ice-sheets is threatening to inundate low-lying islands and coast-lines worldwide. At present global mean sea level rises at 3.1 � 0.7 mm/yr with an accelerating tendency. However, the magnitude ...
The sea level contribution from glacial sources has been accelerating during the 21st century (Meier et al., 2007; Velicogna, 2009). This contribution is not distributed uniformly across the world's oceans due to both oceanographic and gravitational effects. We compute the sea level signature ...
The sea level contribution from glacial sources has been accelerating during the 21st Century. This contribution is not distributed uniformly across the world's oceans due to both oceanographic and gravitational effects. We compute the sea level signature of 21st Century ice mass fluxes due to ...
Coastal wetlands are responsible for about half of all carbon burial in oceans, and their persistence as a valuable ecosystem depends largely on the ability to accumulate organic material at rates equivalent to relative sea level rise. Recent work suggests that elevated CO2 and temperature warming will increase organic matter productivity and the ability ...
The sea level contribution from glacial sources has been accelerating during the first decade of the 21st Century (Meier et al., 2007; Velicogna, 2009). This contribution is not distributed uniformly across the world's oceans due to both oceanographic and gravitational effects. We compute the sea ...
There is growing consensus that the rate of sea level rise by the end of this century will reach, and possibly exceed, 5 mm/yr. Predictions as to how sea-level rise will impact coasts often rely on passive inundation models that simply flood the coastal landscape. However, the geological record clearly shows that coastal response to ...
Retreat of the Beaufort Sea coast is driven by relative sea-level (RSL) rise coupled with wave and storm surge impacts which can cause up to several metres retreat of partially thawed, unconsolidated cliffs during a single storm. Storms are only effective as erosional agents during the June to October open water season when waves are not completely damped ...
