Sentences with phrase «mean sea level observed»

The map of regional mean sea level trends provides an overview of variations in the rates of relative local mean sea level observed at long - term tide stations (based on a minimum of 30 years of data in order to account for long - term sea level variations and reduce errors in computing sea level trends based on monthly mean sea level).

Not exact matches

The Greenland ice sheet loses about 227 gigatonnes of ice per year and contributes about 0.7 millimeters to the currently observed mean sea level change of about 3 mm per year.

Hurricane Harvey likely generated a storm tide of 10 - 12 feet near Port Lavaca, although the highest observed level reported was 7 feet above mean sea level.

Case 2 (Topex / Poseidon EOFs over 1993 — 2003) leads to a global mean sea level trend over the 54 - year time interval very close to the observed trend.

For example, basic physics means that rising temperatures will drive sea levels up, as is in fact observed.

In this regard, I would observe that at least one important AGW effect, rising sea level, does not depend on a specific regional outcome so much as on global mean T. (At least, I think this is so (because my understanding is that most of the rise comes from lower density of warmer water, not from melting ice sheets — though again, not 100 % sure on this point)-RRB-.

The contribution from glaciers and ice caps (not including Greenland and Antarctica), on the other hand, is computed from a simple empirical formula linking global mean temperature to mass loss (equivalent to a rate of sea level rise), based on observed data from 1963 to 2003.

With an observed sea level change of 1.8 mm / yr this means an approximate 0 — 10 % range.

Global mean temperatures in 2011 did not reach the record - setting levels of 2010, but were still the highest observed in a La Niña year, and Arctic sea - ice extent fell to near - record - low levels.

«It is very likely that the rate of global mean sea level rise during the 21st century will exceed the rate observed during 1971 — 2010 for all Representative Concentration Pathway (RCP) scenarios due to increases in ocean warming and loss of mass from glaciers and ice sheets.

«It is very likely that the rate of global mean sea level rise during the 21st century will exceed the rate observed during 1971 — 2010 for all RCP scenarios... with a rate of rise 8 — 15 mm yr — 1 over the last decade of the 21st century) for RCP8.5.»

The authors observe that wide variations in rates of tectonic uplift and subsidence in different locations around the world at particular times mean no effective coastal management plan can rest upon speculative computer projections regarding an idealised future global sea level, such as those provided by the United Nations» Intergovernmental Panel on Climate Change (IPCC).

Scientists have recently observed major changes in these glaciers: several have broken up at the ocean end (the terminus), and many have doubled the speed at which they are retreating.2, 5 This has meant a major increase in the amount of ice and water they discharge into the ocean, contributing to sea - level rise, which threatens low - lying populations.2, 3,5 Accelerated melting also adds freshwater to the oceans, altering ecosystems and changing ocean circulation and regional weather patterns.7 (See Greenland ice sheet hotspot for more information.)

So, the 3 types are all relative to mean sea level except «Observed Surface Pressure» in type 181.

TYPE 183 and TYPE 180 ： relative to mean sea level TYPE 181 ： «Observed Sea Level Press» is corrected and «Observed Surface Pressure» is not correctsea level TYPE 181 ： «Observed Sea Level Press» is corrected and «Observed Surface Pressure» is not correlevel TYPE 181 ： «Observed Sea Level Press» is corrected and «Observed Surface Pressure» is not correctSea Level Press» is corrected and «Observed Surface Pressure» is not correLevel Press» is corrected and «Observed Surface Pressure» is not corrected.

She continues by observing that «it is likely that both extreme weather events (storms, floods, heat waves) and changes in mean temperatures, precipitation and sea - levels will in many cases contribute to increasing levels of mobility.»

«SEAFRAME gauges not only measure sea level by two independent means, but also observe a number of «ancillary» variables - atmospheric pressure, air and water temperatures, wind speed and direction.

Global sea level is currently rising as a result of both ocean thermal expansion and glacier melt, with each accounting for about half of the observed sea level rise, and each caused by recent increases in global mean temperature.

The observed changes (lower panel; Trenberth and Fasullo 2010) show the 12 - month running means of global mean surface temperature anomalies relative to 1901 — 2000 from NOAA [red (thin) and decadal (thick)-RSB- in °C (scale lower left), CO2 concentrations (green) in ppmv from NOAA (scale right), and global sea level adjusted for isostatic rebound from AVISO (blue, along with linear trend of 3.2 mm / year) relative to 1993, scale at left in mm).