SunCalc - sun position, sunlight phases, sunrise, sunset, dusk and dawn times calculator. SunCalc is a little app that shows sun movement and sunlight phases during the given day at the given location.
You can see sun positions at sunrise, specified time and sunset. Local Weather from AccuWeather.com - Superior Accuracy™ Created by freeland at 13-OCT-13 11:42:00 UT. The U.S. Government's Official Web Portal. Comet ISON Meteor Shower. Comet ISON Meteor Shower April 19, 2013: Anticipation is building as Comet ISON plunges into the inner solar system for a close encounter with the sun in November 2013.
Blasted at point-blank range by solar radiation, the sungrazer will likely become one of the finest comets in many years. When NASA's Swift spacecraft observed the comet in January 2013, it was still near the orbit of Jupiter, but already very active. More than 112,000 pounds of dust were spewing from the comet's nucleus every minute.
It turns out, some of that dust might end up on Earth. Veteran meteor researcher Paul Wiegert of the University of Western Ontario has been using a computer to model the trajectory of dust ejected by Comet ISON, and his findings suggest that an unusual meteor shower could be in the offing. "For several days around January 12, 2014, Earth will pass through a stream of fine-grained debris from Comet ISON," says Wiegert. Don’t expect to notice. Sky watchers should probably be alert, too. Credits: Antarctic ice melting 10 times faster than 600 years ago. Updated Mon 15 Apr 2013, 11:10am AEST A report has found that the Antarctic summer ice melt is now occurring 10 times faster than it did 600 years ago.
Scientists from the British Antarctic Survey and the Australian National University drilled a 360-metre ice core near the northern tip of the peninsula to to identify past temperatures. The ice core gave an extraordinary insight into the temperatures, revealing the coolest conditions, and the lowest melt, occurred six centuries ago. By comparison, it found temperatures now are 1.6 degrees Celsius higher, and the ice melt is 10 times as fast. The lead author of the report, Dr Nerilie Abram from the Australian National University, says the most rapid melt has occurred in the last 50 years.
"The lowest levels of melt were about 600 years ago and then the melt has increased almost tenfold over that time," she said. "But it's really in the last 50 years or so that melt has increased dramatically. Acceleration of snow melt in an Antarctic Peninsula ice core during the twentieth century : Nature Geoscience. Over the past 50 years, warming of the Antarctic Peninsula has been accompanied by accelerating glacier mass loss and the retreat and collapse of ice shelves.
A key driver of ice loss is summer melting; however, it is not usually possible to specifically reconstruct the summer conditions that are critical for determining ice melt in Antarctic. Here we reconstruct changes in ice-melt intensity and mean temperature on the northern Antarctic Peninsula since AD 1000 based on the identification of visible melt layers in the James Ross Island ice core and local mean annual temperature estimates from the deuterium content of the ice. During the past millennium, the coolest conditions and lowest melt occurred from about AD 1410 to 1460, when mean temperature was 1.6 °C lower than that of 1981–2000.
Since the late 1400s, there has been a nearly tenfold increase in melt intensity from 0.5 to 4.9%. View full text Figures. Sat 06 Apr, 05:30 EDT (09:30 UTC) Meteoalarm - severe weather warnings for Europe - Mainpage. Your mind is your weapon. LISS - Live Internet Seismic Server. These data update automatically every 30 minutes.
Last update: April 13, 2014 07:09:31 UTC Seismograms may take several moments to load. Click on a plot to see larger image. CU/ANWB Willy Bob, Antigua and Barbuda CU/BBGH Gun Hill, Barbados CU/BCIP Isla Barro Colorado, Panama CU/GRGR Grenville, Grenada CU/GRTK Grand Turk, Turks and Caicos Islands CU/GTBY Guantanamo Bay, Cuba CU/MTDJ Mount Denham, Jamaica CU/SDDR Presa de Sabenta, Dominican Republic. Helioviewer.org - Solar and heliospheric image visualization tool. News and information about meteor showers, solar flares, auroras, and near-Earth asteroids. National and Local Weather Forecast, Hurricane, Radar and Report. Emergency and Disaster Information Service. National Data Buoy Center.