Sea level and bottom pressure measurements in the northern Gulf of Alaska
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Sea level and bottom pressure measurements in the northern Gulf of Alaska

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Published by U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Pacific Marine Environmental Laboratory, For sale by the National Technical Information Service in Seattle, Wash, Springfield, Va .
Written in English


  • Sea level -- Alaska, Gulf of -- Observations

Book details:

Edition Notes

StatementSteven J. Bograd
SeriesNOAA data report ERL PMEL -- 29, Contribution no. 1277 from NOAA/Pacific Marine Environmental Laboratory, Contribution (Pacific Marine Environmental Laboratory (U.S.)) -- no. 1277
ContributionsPacific Marine Environmental Laboratory (U.S.)
The Physical Object
Pagination1 v
ID Numbers
Open LibraryOL13614461M

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Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth’s rotation results in the Coriolis Effect which also influences ocean currents. Similar to a person trying to walk in a straight line across a spinning merry-go-round, winds and ocean waters get deflected from a straight line path as they travel. Because warm water expands more than cold water with the same amount of heating, and seawater at higher pressure expands more than seawater at lower pressure, global sea-level change depends on the distribution of ocean temperature change throughout the ocean, from top to bottom. Thermosteric sea-level change is calculated from temperature and. The Baltic Sea is a mediterranean sea of the Atlantic Ocean, enclosed by Denmark, Estonia, Finland, Latvia, Lithuania, Sweden, northeast Germany, Poland, Russia and the North and Central European Plain.. The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude.A marginal sea of the Atlantic, with limited water exchange between the two water bodies, the Baltic Sea drains Location: Europe. Today, global sea level is inches ( cm) higher on average than it was in Between and , global sea level rose between inches ( millimeters) (link is external) and inches ( millimeters) (link is external) per year on average. In the s, that rate jumped to around millimeters per year. In the.

The basinwide tsunamis were detected by many sea-level recorders, including NOAA's Deep-ocean Assessment and Reporting of Tsunami (DART) stations, which are critical elements of NOAA's tsunami-forecasting DART station consists of a bottom-pressure recorder, or tsunameter, that measures the tsunami's wave height and related parameters, and a surface buoy that communicates . Surface pressure systems tend to move in same direction as wind at mb pressure level (surface speed about half that of upper level wind) Movement of Weather Systems Rules of Thumb In making these forecasts, we assume pressure systems move at constant rate.   If sea level is definable at all (such as the average of sea-level gauges around the world), it is calculable for every moment in time. Since it is nonphysical for the sea to suddenly be, say, three inches higher without going through intermediate heights (such as 1 . Tide gauge measurements have been used to reconstruct GMSL back to (Figure 1 (c)), although only a few gauges extend to the s. Salt marsh measurements have generally corroborated the tide gauge record (Figure 1 (b)). While many of our best long-term sea level records come from tide gauge measurements, they are limited by poor spatial.

  SUMMARY. Monthly ocean bottom pressure solutions from the Gravity Recovery and Climate Experiment (GRACE), derived using surface spherical cap mass concentration (MC) blocks and spherical harmonics (SH) basis functions, are compared to tide gauge (TG) monthly averaged sea level data over – to evaluate improved gravimetric data processing methods near the by: 3. Tide changes proceed via the following stages: Sea level rises over several hours, covering the intertidal zone; flood tide.; The water rises to its highest level, reaching high tide.; Sea level falls over several hours, revealing the intertidal zone; ebb tide. The water stops falling, reaching low tide.; Oscillating currents produced by tides are known as tidal streams. These temperatures are converted to height above sea level by equating- them to actual temperatures measured by sounding balloons in the vicinity of the storm, as shown on the right. The °-K temperature over the eye of the hurricane corresponds to a height of about 2 km; the radiometer probably did not see the surface of the sea through the. Pacific Northeast region (Region 67) is the fourth largest Pacific Ocean fishery and eighth largest in the world producing 4% of the global catch or 3,, mt in ; this region encompasses the waters north of 40º North latitude and east of º West longitude including the Gulf of Alaska and Bering Sea with the major producers including.