[ti:Study: Moon Cycle Change to Increase US Coastal Flooding in Mid-2030s]
[by:www.21voa.com]
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[00:00.04]A new study predicts that a changing moon cycle
[00:05.04]will increase high-tide flooding
[00:08.56]across U.S. coastal areas in the mid-2030s.
[00:15.48]The finding is based on ocean tide data
[00:20.04]collected from 89 coastal areas
[00:24.08]covering every U.S. state and territory except for Alaska.
[00:30.60]This data was examined along with flooding records
[00:36.28]and predictions for future sea level rise
[00:40.92]stretching into the year 2080.
[00:45.60]Research results showed that the combined effects of rising sea levels
[00:52.56]linked to climate change and natural changes in ocean tides
[00:58.80]will lead to increases in coastal flooding.
[01:03.92]The prediction was recently reported
[01:07.16]in a study in Nature Climate Change.
[01:11.44]The study was led by members
[01:14.40]of the U.S. space agency NASA's Sea Level Change Team.
[01:20.72]The lead researcher of the study was Phil Thompson,
[01:26.12]a member of the Sea Level Change Team
[01:29.48]and director of the University of Hawaii's Sea Level Center.
[01:35.80]Thompson said in a statement
[01:38.96]he expects the biggest increases to happen
[01:43.20]along the U.S. Pacific and Gulf of Mexico coastlines,
[01:48.64]which include Hawaii and other Pacific islands.
[01:53.16]This is important because this is where high-tide flooding
[01:59.68]goes from being mostly "a local or regional issue
[02:04.92]and becomes a national issue affecting a majority
[02:09.76]of our nation's coastlines," he said.
[02:14.32]The researchers note that many U.S. coastal areas,
[02:19.28]especially along the Atlantic coast,
[02:22.56]are already experiencing such flooding.
[02:26.68]High-tide flooding happens when tides reach anywhere
[02:31.72]from 0.5 meters to 0.6 above the daily average high tide,
[02:39.56]says the National Oceanic and Atmospheric Administration (NOAA).
[02:45.56]NOAA reported more than 600 incidents of this kind of flooding
[02:51.96]-- also known as "sunny day" flooding -- in 2019.
[02:57.04]Such activity is expected to worsen
[03:01.20]and lead to longer lasting floods
[03:04.80]as high tides increase in the future
[03:08.12]and sea levels keep rising.
[03:12.00]Ben Hamlington was a co-writer of the study.
[03:17.12]He is with NASA's Jet Propulsion Laboratory in California
[03:22.52]and also the leader of the Sea Level Change Team.
[03:27.96]He said in a statement the findings can be an important resource
[03:33.44]for U.S. coastal planners who may be centered more on preparing
[03:39.08]for extreme events rather than more high-tide flooding.
[03:44.72]For planning purposes, "it's important to know
[03:49.32]when we'll see an increase," Hamlington said.
[03:54.56]Thompson agrees that results of the study
[03:58.44]can be used by scientists, engineers and government officials
[04:04.44]who are used to preparing for rare, severe weather events
[04:09.72]such as a 100-year storm.
[04:13.56]"But we demonstrate that it is important to plan for extreme months
[04:19.48]or seasons during which the number of flooding episodes,
[04:24.00]rather than the magnitude, is exceptional," he said.
[04:29.08]The prediction of increased high tides starting in the mid-2030s
[04:35.48]is linked to a normal moon cycle.
[04:39.48]NASA says the cycle
[04:42.12]-- which affects how Earth lines up with the moon and the sun
[04:46.92]-- changes our planet's gravitational pull.
[04:51.00]This, in turn, affects ocean tides.
[04:55.72]The cycle causes "a regular wobble in the moon's orbit
[05:01.56]that takes 18.6 years to complete," NASA explains.
[05:08.72]In half of the moon's cycle, it causes high tides on Earth
[05:14.56]to be lower than normal and low tides to be higher than normal.
[05:20.16]In the other half of the cycle,
[05:22.96]high tides get higher and low tides get lower.
[05:28.28]Currently, NASA says the moon is in the cycle
[05:32.36]that intensifies high tides.
[05:35.32]And while there have been issues with high-tide flooding,
[05:40.36]there has not been enough sea level rise to cause high tides
[05:45.80]"to regularly top" flooding levels, the researchers said.
[05:50.96]But the next time the cycle comes around again, in the mid-2030s,
[05:57.92]sea level rise "will have been at work" during those years, NASA noted.
[06:05.24]The higher seas, combined with the new moon cycle,
[06:09.36]"will cause a leap in flood numbers
[06:12.84]on almost all U.S. mainland coastlines, Hawaii, and Guam."
[06:20.00]Such flooding could leave people in cities dealing with floods
[06:25.40]"every day or two," the research team predicts.
[06:30.92]I'm Bryan Lynn. 更多听力请访问21VOA.COM
END OF TRACK. "END OF TRACK." The two men bowed. "Whoever was that person you were talking to?" she enquired, as soon as they stood together. The took of triumph faded from her eyes, she had grown worn and weary. The roses were wilting on the walls, the lights were mostly down now. Hetty, looking in to see if anything was wanted, found herself driven away almost fiercely. I only saw Master Jervie once when he called at tea time, The year 1747 was opened by measures of restriction. The House of Lords, offended at the publication of the proceedings of the trial of Lord Lovat, summoned the parties to their bar, committed them to prison, and refused to liberate them till they had pledged themselves not to repeat the offence, and had paid very heavy fees. The consequence of this was that the transactions of the Peers were almost entirely suppressed for nearly thirty years from this time, and we draw our knowledge of them chiefly from notes taken by Horace Walpole and Lord Chancellor Hardwicke. What is still more remarkable, the reports of the House of Commons, being taken by stealth, and on the merest sufferance, are of the most meagre kind, sometimes altogether wanting, and the speeches are given uniformly under fictitious names; for to have attributed to Pitt or Pelham their[112] speeches by name would have brought down on the printers the summary vengeance of the House. Many of the members complained bitterly of this breach of the privileges of Parliament, and of "being put into print by low fellows"; but Pelham had the sense to tolerate them, saying, "Let them alone; they make better speeches for us than we can make for ourselves." Altogether, the House of Commons exhibited the most deplorable aspect that can be conceived. The Ministry had pursued Walpole's system of buying up opponents by place, or pension, or secret service money, till there was no life left in the House. Ministers passed their measures without troubling themselves to say much in their behalf; and the opposition dwindled to Sir John Hinde Cotton, now dismissed from office, and a feeble remnant of Jacobites raised but miserable resistance. In vain the Prince of Wales and the secret instigations of Bolingbroke and Doddington stimulated the spirit of discontent; both Houses had degenerated into most silent and insignificant arenas of very commonplace business. "It certainly will be. Miss Widgeon," answered Maria, with strictly "company manners." "One who has never had a brother exposed to the constant dangers of army life can hardly understand how glad we all feel to have Si snatched from the very jaws of death and brung back to us." "Just plug at 'em as you would at a crow, and then go on your way whistlin'?" persisted Harry. "Hurroo!" echoed Hennessey; "that's the ticket." "Come forward, keeper," continued the baron, "and state how these arrows came into your hands!" "Yes." HoMEJULIA京香2018下载
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