Posts treating: "tides"
Monday, 18 April 2016
Geology in the West Country [2016-04-18 10:48:00]
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(149 visits) Triassic,Carboniferous; GB
Saturday 23rd AprilSully Island and Lavernock PointLeader: Professor Maurice Tucker, University of Bristol and Bath Geological SocietyThe Triassic rocks near Sully and Penarth (50 miles west of Bristol), near Cardiff, were deposited around the edge of a lake or inland sea in which the Mercia Mudstone/ Keuper Marl was deposited. The Trias overlies the Carboniferous limestone which locally created hills and cliffs around the lake; wave-cut shore-platforms and wave-notches were cut into the [...]
I really love the fact that physicists are sharing physics so widely online. There are some fabulous videos that will blow your mind, and teachers, you really consider spending some time in class watching them. So, with that in mind, here are some of my fave videos. Being a geek, I even knew the one about tides, but I can tell you that many meteorologists do not! I still remember
The highest energy thing we have going here is the rotation of the Earth, followed by the radiation heat deep in the Mantle. I don't know how many atomic bombs they are, or how many seconds of the Sun, but it is huge. Man isn't even the flea on these elephants. The orbit of the Moon is somewhere there, and that controls the tides.
For the rotation, two things leech off it - ocean
Volcano Science And News Blog [2015-01-19 19:35:00]
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(188 visits) US,IS,TO,NZ,TH
Hunga Tonga-Hunga Ha'apai, one of many submarine calderas NE of New Zealand in an island arc, has begun causing some problems for flights in the area. What started as a minor steam and ash eruption has now turned into a semi-major eruption in the area. Steam and ash clouds are reaching extraordinary heights, and the ongoing eruption is rapidly building a new island.Photo from Volcano-discovery.comResidents have reported that the eruption plume was changing hourly from white steam, to black ash [...]
Most people know about tsunamis, but very few know about METEOtsunamis. They are not caused by earthquakes, not caused by tides and you can learn more about these large wave events in an Earth Magazine
Interesting paper in Current Science (Open Access) - Impact of Earth’s crustal tides on groundwater regime in confined sedimentary aquifers of Andhra Pradesh, India - Umamaheswara Rao Bollimunta
Water being less rigid deforms more easily due to the Moon's and Sun's gravitational attraction, manifested as the familiar ocean tides. However, the earth's crust too deforms slightly. So, there
Here on the Delmarva, we’ve had 4 days of rain and a lot of it. Over 4.6 inches here in Salisbury, but parts of Delaware have had well over 6 inches. The wind hasn’t been anything like Sandy, or even a strong nor’easter, but it’s been blowing steady at 20-35 mph for four days! Waves and tides are affected by three factors however. 1.Wind Speed (How high are the winds)
By analyzing the distinctive cracks lining the icy face of Europa, NASA scientists found evidence that this moon of Jupiter likely spun around a tilted axis at some point.
This tilt could influence calculations of how much of Europa's history is recorded in its frozen shell, how much heat is generated by tides in its ocean, and even how long the ocean has been liquid.
"One of the
Can shifting tides trigger earthquakes? Research done by Maya Tolstoy, a geophysicist at Lamont-Doherty Earth Observatory, suggests they
Rosario Costa-Cabral and her brothers harvest hundreds of fruits, oils and wood products from the stream-laced forest of the Amazon River delta. They also are helping the rainforest to regenerate, even as they cultivate a living from its diversity. But the climate here is changing: Tides rise higher, and seasonal floods are growing worse. An Earth Institute-led project is looking at how they are
The World’s oceans will rise up considerably higher than usual this week due to an effect called “King TIdes”. The tides are a result of the gravitational forces of the Sun and the Moon of course but when the Moon is full or new we are “lined up” and the gravity from both act in concert with each other. It may seem that a full moon would act opposite but
The National Data Buoy Center (sorry, no Gurl Center) of NOAA describes the Deep-ocean Assessment and Reporting of Tsunamis (DART) program. Each DART gauge is designed to detect and report tsunamis, by looking at the pressure of the disturred column of ocean water.Maps are available here to show the location of these sensors, such as the map below for the eastern side of Japan.
Friends, King tides photos requested Geo-TV on the web But first, thanks to readers who came to the Mount Baker presentation at Whatcom Museum Thursday afternoon. There was standing room only. There will be a repeat in the spring, watch for the announcement. See the post at the MBVRC update site. Citizen scientists are requested
You wouldn't think that the oceans around Antarctica would have a lot of exciting marine animals. But it does! The shores around Antarctica have quite a variety of marine life, because it is a zone of coastal upwelling.The water in the ocean doesn't stay in one place. Water moves. You're probably familiar with currents and tides, which are a couple ways that water moves around in the ocean. But water also moves up and down in the ocean, not just around the surface. Here's how.Water that is on [...]
So OK, Jim Denevan is in a different league, but back in May, when the tides were high and the first full moon of the month was rising over Queens, New York, Larry Deemer sent me this picture of
While I was in Alaska last week, we drove down to Girdwood in hopes of breaking out from under some persistent, usually snowing clouds. Our find-the-sun attempt really didn't work, however. In fact, while in Alaska, I saw only one really clear day, a day set aside for family.Going to Girdwood involves driving the Seward Highway (partly Alaska S.R. 1) south out of Anchorage. The highway
A paper in the 24 December Nature shows that the deep crust can be an extraordinarily sensitive place: Deep in the San Andreas fault near Parkfield, California, nonvolcanic tremor responds to the daily tides raised by the Moon and Sun. This does nothing for the seismic syzygy theory beloved of geologist Jim Berkland (and debunked again and again) because actual earthquakes there have no such pattern. But it does suggest that the deep fault is in an exquisite balance between lithostatic [...]
An article on the Nature.com website reports that USGS researches have linked motion in the Slumgullion landslide of California with changes in air pressure known as “air tides”.
Related: Landslide Hazard Fact
During Earth Science Week (October 11 to 17), NASA will release five short educational videos, all part of a series entitled “Tides of Change.” The videos, focusing on the connection between ocean and climate, will be posted at NASA Global Climate Change (http://climate.nasa.gov), a one-stop shop for NASA Earth Science Week education resources related to
If the tidal forces of strong gravitational fields are constantly twisting a planet’s guts like a strong man squeezing the pips out of a lemon and generating continual paroxysms of violent volcanism then it’s probably not an ideal environment for life, says a confused article from ScienceNOW (the ‘caps lock stuck’ people).
The foremost example of