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Showing posts with label WRLTHD Nature news. Show all posts
Showing posts with label WRLTHD Nature news. Show all posts
Sharks bite 3 surfers at New Smyrna Beach, Florida
WFTV9 ABC
NEW SMRYNA BEACH, Fla. - Three people were bitten by sharks Sunday at New Smyrna Beach, Volusia County Beach Safety Ocean Rescue said.
A 43-year-old Longwood man was bitten on his lower leg/ankle shortly before 10:45 a.m. while surfing south of a jetty, VCBSOR Senior Capt. Tamra Marris said.
Shortly after 11 a.m., a 36-year-old Miami man was bitten on both hands while surfing in the same area, Marris said.
The man uploaded photos to his Facebook account of paramedics treating him. In the Facebook post, he said he was shaken up and was awaiting surgery.
Both men had significant lacerations and were taken to a hospital for treatment, but are expected to survive their injuries.
A 16-year-old New Smyrna Beach boy was bitten on his inner thigh shortly before 1 p.m. while surfing, Marris said.
The boy had a minor laceration and didn’t need to be taken to a hospital.
Doug Watson, an experienced surfer from Sanford, said he wasn't surprised to learn the news.
"So there's multiple sharks and tarpon and different sport fish that are feeding on the mullet run," he said. "So yeah, you run into them. You see 'em."
Watson said he's cautious given the seasonal fish migration along the coast, but he said Sunday's trio of shark bites won't keep him from the waves.
"You're gonna see 'em," Watson said. "It's part of it. You just respect them."
Signs warning of dangerous marine life were posted at most beach entrances, but Marris said the greater danger lurking in the water was the rip currents.
© 2016 Cox Media Group.
Antarctic Sea Ice Sets Another Record
Antarctic Iceberg (Photo credit: NOAA's National Ocean Service)Antarctic sea ice set another record this past week, with the most amount of ice ever recorded on day 256 of the calendar year (September 12 of this leap year). Please, nobody tell the mainstream media or they might have to retract some stories and admit they are misrepresenting scientific data.
National Public Radio (NPR) published an article on its website last month claiming, “Ten years ago, a piece of ice the size of Rhode Island disintegrated and melted in the waters off Antarctica. Two other massive ice shelves along the Antarctic Peninsula had suffered similar fates a few years before. The events became poster children for the effects of global warming. … There’s no question that unusually warm air triggered the final demise of these huge chunks of ice.”
NPR failed to mention anywhere in its article that Antarctic sea ice has been growing since satellites first began measuring the ice 33 years ago and the sea ice has been above the 33-year average throughout 2012.
Indeed, none of the mainstream media are covering this important story. A Google News search of the terms Antarctic, sea ice and record turns up not a single article on the Antarctic sea ice record. Amusingly, page after page of Google News results for Antarctic sea ice record show links to news articles breathlessly spreading fear and warning of calamity because Arctic sea ice recently set a 33-year low.
Sea ice around one pole is shrinking while sea ice around another pole is growing. This sure sounds like a global warming crisis to me.
Black bear destroyed after swatting man in Whistler hot tub
A B.C. man was lounging in a hot tub near Whistler Village Sunday when he was smacked from behind by a black bear, the latest in a string of bear attacks and sightings across Canada in the past month.
The man, who has not been named, yelled at the bear and ran inside to call police. Officers responded and shot the animal.
The 55-year-old from Coquitlam, B.C., was relaxing behind a home in a townhouse complex near a wooded area, said Staff Sergeant Steve LeClair with the Whistler detachment of the Royal Canadian Mounted Police. “The guy was sitting … with his back to the forest, then all of a sudden he felt a heavy blow to the back of his head. And he turned around and saw himself face to face with a bear,” said the Mountie.
The incident was the first unprovoked bear attack in the area in the past five years.
“This type of incident is really rare,” Staff Sgt. LeClair said.
But black bears appear to be popping up in unusual places across Canada lately.
Also on the weekend, a black bear in Kamloops, B.C., had to be euthanized after it ate the body of a man who died on a remote logging road. Investigators say the animal pulled the corpse out of the car and ate part of it, before burying the rest. The bear was put down because it had lost its fear of humans, said Terry Lake, the B.C. Environment Minister.
Last month, a black bear attacked Gordon Shurvell of Winnipeg while he was sitting in an outhouse at a campsite in Sioux Lookout, Ont.
The man said he tried to scare the animal off by kicking and jabbing the bear’s nose, but was impeded because his pants were around his ankles. The bear dragged him for 15 metres before his friend managed to shoot the animal in the head.
“I knew, with this bear, he means business,” Mr. Survell told the Winnipeg Free Press.
On May 7, a black bear was seen on Gabriola Island, squashing the B.C. community’s reputation as a bear-free zone. Two days later, a black bear that had become accustomed to eating garbage in West Kelowna, B.C., was shot dead.
Black bears have also been spotted recently in suburban neighbourhoods in Ontario and Alberta.
These include a 180-kilogram bear, shot dead in Burlington; three separate sightings of a black bear in Milton; and a 136-kg black bear, shot dead in Canmore, Alta., after being spotted in town a dozen times.
Bear sightings and attacks in Canada are rare, as the animals’ natural instinct is to avoid people. But bruin activity tends to spike at this time of year when they wake from hibernation and try to refuel, said Dave Cox, a conservation officer with the B.C. Ministry of Environment.
The level of bear activity in B.C. so far this year has been “low to normal,” he said.
There are about 380,000 black bears and 26,000 grizzly bears in Canada, according to the Nature Conservancy of Canada. Half of them live in British Columbia.
Since 2000, 14 people have been killed by grizzly, black or brown bear attacks in Canada.
Woman On Meth Burns Down World's Oldest Tree
By ANDREW RAMOS
SEMINOLE COUNTY, Fla. (PIX11)— A Florida woman was arrested and charged after admitting to police that she accidentally burned down a 3,500 year-old tree - the fifth oldest on the planet - while smoking meth with a friend.
The historic cypress tree named The Senator located in Big Tree Park in Longwood, Fla., caught fire and was destroyed on Jan. 16. Officials initially deemed the blaze suspicious, suspecting it was an act of arson. It turned out they were on to something.
Police said Barnes admitted to being inside the 118-foot tree, days before flames engulfed it. Barnes and a friend were smoking meth and used an open flame as a guide, authorities said.
The tree burned down a week later, eventually burning from the inside out.
The loss is undoubtedly one of epic proportions to the historic natural world. And as for Barnes, she's still coping in her own way.
"I can't believe I burned down a tree older then Jesus," Barnes reportedly told friends shortly after the blaze. Bravo Sarah. You did it!
Solar storm's upside: Best places to see intense northern lights
Travelers in Alaska, Canada, the northern Plains, parts of the Midwest and much of the West tonight (Thursday) may be treated to a northern lights display more intense than usual because of the powerful solar storm hitting the Earth's surface, according to science and weather reports.
The geomagnetic storm reached Earth about 5:45 a.m. EST Thursday. Scientists say the initial storm has been weaker than expected but may intensify later today.
Northern lights trackers say tonight could bring a spectacular show to mid- and high latitudes in the Northern Hemisphere. AccuWeather.com says bright streaks were seen over the Great Lakes region Wednesday night.
And here's the forecast for Alaska from the Geophysical Institute at the University of Alaska, Fairbanks: "Auroral activity will be high. Weather permitting, highly active auroral displays will be visible overhead from Barrow to Bethel, Dillingham and Ketchikan, and visible low on the horizon from King Salmon."
The Weather Channel says about the aurora forecast: "There is near certainty that this solar storm will produce aurora across the northern latitudes and could produce them as far south as the mid-latitudes," particularly on Thursday night-Friday morning.
Outside the U.S., Spaceweather.com shows spectacular northern lights photographs taken Wednesday night from northern parts of Russia, the Sky Station at Abisko National Park in Sweden and parts of Finland.
For those who might be in the northern lights belt, here are some viewing tips from the Geophysical Institute:
"[A]void city lights, and acquire a clear view of the northern horizon. Dress warmly, and plan to watch the sky between 10 p.m. and 2 a.m. local time, although an active period can occur anytime during the dark hours. Active periods are about 30 minutes long, occurring every 2 hours."
The geomagnetic storm reached Earth about 5:45 a.m. EST Thursday. Scientists say the initial storm has been weaker than expected but may intensify later today.
Northern lights trackers say tonight could bring a spectacular show to mid- and high latitudes in the Northern Hemisphere. AccuWeather.com says bright streaks were seen over the Great Lakes region Wednesday night.
And here's the forecast for Alaska from the Geophysical Institute at the University of Alaska, Fairbanks: "Auroral activity will be high. Weather permitting, highly active auroral displays will be visible overhead from Barrow to Bethel, Dillingham and Ketchikan, and visible low on the horizon from King Salmon."
The Weather Channel says about the aurora forecast: "There is near certainty that this solar storm will produce aurora across the northern latitudes and could produce them as far south as the mid-latitudes," particularly on Thursday night-Friday morning.
Outside the U.S., Spaceweather.com shows spectacular northern lights photographs taken Wednesday night from northern parts of Russia, the Sky Station at Abisko National Park in Sweden and parts of Finland.
For those who might be in the northern lights belt, here are some viewing tips from the Geophysical Institute:
"[A]void city lights, and acquire a clear view of the northern horizon. Dress warmly, and plan to watch the sky between 10 p.m. and 2 a.m. local time, although an active period can occur anytime during the dark hours. Active periods are about 30 minutes long, occurring every 2 hours."
Auroral photography: A guide to capturing the Northern Lights
By Ben Hattenbach
If you've ever been interested in aurora photography, now is a great time to get out there and give it a try. Here's why:
The activity of our sun (the cause of aurorae here on Earth) ebbs and flows in eleven year cycles. The peak of the current solar cycle - an apex of auroral activity - will occur around 2013.
Revolutionary improvements in imaging technology have been made since the last solar cycle. We have progressed from film to an age of digital image sensors which offer far greater sensitivity and resolution, along with real time feedback and less noise.
Our ability to predict the timing and intensity of aurorae has been enhanced considerably with the launch of the Solar & Heliospheric Observatory, the product of a collaboration between the European Space Agency and NASA.
In the next few years we will enjoy sensational aurorae, advance notice of their arrival, and the equipment necessary to capture them as never before. Even armed with all of these advantages, however, the aurorae are not going to put themselves on your memory cards. That's something you'll have to do yourself, and it can be a struggle.
This article provides ten suggestions that, if followed, will improve your odds of emerging from that struggle with some exceptional imagery. This article consists of two pages - the first page deals with how to find an aurora and equip yourself to capture it properly, and page 2 will guide you through the remainder of the process, including camera settings, composition and advanced topics.
Let’s begin by getting to know the aurora. According to my friend, astrophysicist Dr. Henry Throop, the aurora was thought at one time to be caused by ices suspended high above the Earth’s coldest, darkest regions. We now know that the aurora is actually an electrical phenomenon, caused by interactions between the solar wind and the Earth’s upper atmosphere. The sun emits massless photons that we see as light, but also emits out a real, physical, tangible wind of particles which moves at several hundred kilometers per second.
When this wind reaches the Earth, it begins a process that ends by exciting gasses in the Earth’s atmosphere, eventually leading to the emission of light. And just as a true neon light only comes in one color (red), the colors of the aurora are limited too: green and red caused by oxygen, with the fainter blue and purple caused by nitrogen. Unlike the wispy shapes of the aurora, its colors are narrow and precise.
Just like stars, the aurora is present during the day and the night, though during the day it is overwhelmed by the brightness of the sky. As the sun sets, it starts to become visible, being brightest near midnight when the orientation of the Earth’s magnetic field and the solar wind cause it to be strongest. The aurora is seen mostly in a ring centered roughly around the poles, where the solar wind is focused most intensely by the Earth’s magnetic field.
If the Earth had no magnetic field, we’d still have an aurora, but it would be weaker and more flat across the sky: a dull glow seen in every direction. A planet like Jupiter with a stronger magnetic field has a comparably more intense aurora, while Mercury - having neither an atmosphere nor magnetic field - has no aurora at all.
A terrestrial wind passing across the continents creates an unsettled display of turbulence and eddies, which we see in the form of dynamic cloud patterns, vortices, weather, and storms. In much the same way, the solar wind crossing the Earth’s magnetic field makes visible to us the turbulence of space: the vortices and eddies of magnetic fields peel off and pass rapidly overhead.
Even though - like wind - the magnetic fields themselves are invisible to us, we can see it through its tracers: charged particles. As the aurora moves in the sky overhead, the ripples in it are like the wakes and eddies peeling off a boat as at travels up a rough river at night, working at times with, at time against, the current and forcing what’s there out of the way.
2. Timing Is Everything
Now that you know what you’re chasing, when should you expect to actually see your quarry? Sadly there is no easy answer to that question. Here are some notes to consider, as you prepare for the hunt:
Aurorae are caused by Earth-directed coronal mass ejections. Those ejections often come from solar flares associated with sunspots, or originate from coronal holes on the sun. The sun rotates around into an Earth-facing position roughly every 27 days, meaning that at least on a short term basis there is an element of a 27 day cycle to geoeffective emissions.
There is an annual cycle that results in disproportionately high numbers of aurorae in the weeks on either side of the spring and fall equinoxes.
There is an 11-year solar cycle (the 'Schwabe cycle') during which the activity of the sun rises and falls. The number of sunspots tends to track this cycle, resulting in prevalent aurorae around the peak of this cycle. Oddly enough, though, coronal holes are most common about three years after the sunspot maximum, resulting in large numbers of aurorae also appearing about three years after the peak of the Schwabe cycle.
There are also much longer solar cycles stacked on top of these shorter ones, including cycles with periods of 22 years (the 'Hale cycle'), 87 years (the 'Gleissberg cycle'), 210 years (the 'Suess cycle') and 2,300 years (the 'Hallstatt cycle'). Most of us won’t be around for more than a few of these, though, so there is little sense letting them drive our planning.
The weather on Earth is another important factor. If the sky is cloudy, it doesn't matter what's going on above the cloud layer - you won't see it. In much of the arctic, the skies tend to be clearer in late winter and early spring than in fall.
Ambient light is another critical issue. In the high arctic, excessive sunlight will overwhelm any aurorae during summer and the surrounding months. The moon is another source of ambient light that must be considered. A partial moon may helpfully illuminate the surrounding countryside, avoiding the “silhouette” effect common in aurora photographs. I usually prefer about a quarter to a half of a moon when I’m including landscape in a photograph and want it to be illuminated. Anything approaching a full moon, however, can make it quite difficult even to see, much less photograph, ordinary aurorae.
Fortunately, the modern auroral photographer can take advantage of a lot of 'real time' information and analysis of so-called 'space weather', freely available online. Resources I recommend include:
The most informative space weather related information on the net, in my view is www.spaceweather.com.
An alternative presentation of similar information is available from the Space Weather Prediction Center.
Good short-term auroral predictions for Alaska are available on the University of Alaska website.
iPhone and iPad applications 'LightTrac' and 'Darkness,' which provide location-based data regarding sun and moon rise/set.
Further information on solar cycles is available on Wikipedia.
3. Location, Location, Location
Photographers in search of exceptional aurora imagery will generally need to travel a significant distance. This is because aurorae form in oval rings that, roughly speaking, circle the magnetic north pole (the 'aurora borealis') and magnetic south pole (the 'aurora australis'). When observed from far away, these rings will appear as a faint glow on the horizon. When viewed from the arctic or antarctic, however, even an ordinary aurora will often appear directly overhead.
Overhead aurorae tend to be more photogenic, clearer and brighter because of reduced atmospheric interference, and will more effectively illuminate the foreground. Auroral displays over snow, for instance, will generally cause the snow to take on the coloration of the aurora. In comparison, when an aurora is low on the horizon, the foreground will often appear as a less-interesting silhouette.
In addition to finding a location remote from the equator, you’ll want to situate yourself far away from city lights, airports, and other sources of light pollution. To give you a quantitative sense of what this means, when photographing around Fairbanks, Alaska (population under 100,000, counting the surrounding boroughs), I prefer to be at least 30 to 40 miles out of town. The farther, the better. Even from 100 miles into the bush, my photos will occasionally still show a faint orange glow on the horizon.
Here are a few popular spots:
Central and Northern Alaska: Relatively easy access from most of the United States, via Fairbanks. Hundreds of miles of beautiful mountain scenery, with year-round road access. The best locations, in my opinion, are along the Dalton Highway north of Coldfoot.
Iceland: Astoundingly beautiful landscapes abound, and unfrozen water suitable for reflections is abundant, even in winter. Frequently overcast, but still one of the world’s most wonderful countries to visit. However, travel from most places outside of Europe can be time-consuming, and staying in Iceland can be very costly.
Yellowknife, Canada: Well-situated in the auroral belt, but most photos from Yellowknife seem to feature flat fields of snow with pine forests.
Greenland: At the time of writing Greenland is quite difficult to reach directly from the United States or most other countries, unless you’re a world-class swimmer. There's no road system, but Greenland is a superb place to snowshoe around in the dark, searching for aurorae. Greenland isn't for the faint of heart though - think twice before wandering around in the dark, searching for aurorae in a land filled with polar bears.
Tromsø, Norway: A very long trip from North America, not even counting the time required to find the 'ø' on your computer when booking the flight. This location offers picturesque mountains and water in which auroral reflections regularly appear, but you might struggle to completely exclude the glow of town and city lights from your photographs.
Antarctica: Exotic, and one of few locations where one can photograph the aurora while huddling for warmth with a colony of emperor penguins. Unfortunately, unless you’re a scientist overwintering at a research station, it’s virtually impossible to access the continent when aurora are most prevalent.
As I’m based on the west coast of the United States, northern Alaska has become my preferred location for aurora photography.
4. Gear Up For Battle
When photographers are asked how they managed to achieve a certain result, they will usually point to their own artistic proficiency, not the capability of their tools. 'It’s the photographer, not the camera,' is the common refrain. There are, of course, elements of artistry in aurora photography as well. However, the importance of good quality equipment cannot be overstated. Aurora photography does not require the most expensive kit available; it requires gear that can capture broad views, in low light, in cold weather. You will need:
A camera body that excels with clean high-ISO operation. There are a number of new bodies in recent years that meet these criteria well, and which have enabled revolutionary advances in the field of aurora photography. Weather-sealing is a definite plus, although not a necessity.
A wide, fast lens. On a full frame camera, a focal length of 24mm or less is desirable – but the wider, the better, in my experience. Ideally the lens will be able to shoot sharp pictures with minimal vignetting at a maximum aperture of f 2.8 or less, as you’ll want to keep your exposures short. All else being equal, your exposure will be inversely proportional to the square of your aperture, meaning that a lens at f 2.8 will need four times as long to capture an image as at f 1.4. Currently, my favorite lens for this purpose is Nikon’s AF-S Nikkor 14-24mm f 2.8G ED.
A sturdy tripod, and a remote shutter release (or, at a pinch, your camera's self-timer function). Don’t bother leaving home without them. They’re essential for aurora photography. A robust ballhead is also extremely useful.
Gearing up for winter photography, at night, in the arctic, necessitates psychological preparation as well. If you want to get the most out of your journey, you’ll need to be prepared to be awake and working most of the night.
5. Brace Yourself For A Chilly Reception
Aurorae just don’t seem to enjoy the warmth of the tropics or the glow of the midnight sun during summer. You’ll need to play on their home turf, during the dark months. That means planning to spend hours on end, standing around outside at night, quite possibly in extreme cold, and probably a long way from home.
Clothing: be sure you’re dressed for the occasion. This is not a party you’ll want to attend in a mini-skirt. For winter aurora photography I’ve settled on a down-filled mountaineering suit (the Mountain Hardwear Absolute Zero), winter boots rated to -40 degrees F (the Sorel Caribou Reserve), multiple pairs of long thermal underwear (Under Armour ColdGear Base 3.0, both top and bottom), and a wind-proof cap (by Mountain Hardwear).
For the hands, you’ll want gloves thick enough to keep you warm, but thin enough to allow you to operate your camera. Personally I prefer to forgo gloves and keep my hands in warm pockets between shots. Most of the time it works fine. If you’re averse to occasional frostbite, try a different approach.
Batteries: The temperatures of the far north take an enormous toll on battery life. My camera batteries last around 1,500 actuations in normal conditions, but in the arctic winter have become exhausted after as few as 25 frames. The conventional cold weather advice is to keep your battery warm by storing it in a jacket pocket while not in use, but that is not an adequate solution under extreme arctic conditions. I recommend bringing multiple batteries and a charger, and rotating the batteries through the charging station when they’re not in use. If your aurora photography will take you far from the nearest well-stocked camera store, consider also bringing backups for any other 'mission critical' elements of your system.
Tripods: Carbon fiber tripods are just wonderful. They’re light, and in cold weather can be carried without chilling your hands as much as metal would. In frigid temperatures, however, both the carbon fiber legs and the adhesive used to connect then to your tripod base can become brittle. Exerting substantial pressure on your tripod, particularly when its legs are buried in deep snow, can easily result in the amputation of a leg. If you’d prefer not to find yourself hundreds of miles from civilization, with only a 'dipod' for support, be particularly cautious when planting your gear in deep snow.
Cameras and lenses: As noted above, weather-sealing is preferable. In part, this is to help prevent condensation from forming inside your equipment, when you move from an exceptionally cold environment (e.g., shooting outside) to a much warmer space (e.g., into a heated car). Particularly for non-weather-sealed equipment, including most medium format cameras and lenses, it is essential that the cold-to-warm transition be made gradually. It only takes one misstep to generate trip-ending amounts of condensation inside your lenses or sensor. To help slow the transition, I transfer my equipment to a camera bag that has also been outside, and only after sealing the bag do I move the bag and its contents into a warmer space. The camera is then allowed to heat up, slowly and safely, within the bag. For even better protection, consider placing your equipment in an airtight enclosure, such as a Ziploc bag, during the thawing process.
Safety gear: If you’re headed to the far north during winter you should, of course, also read up on how to travel safely in cold, icy climates. When travelling in northern Alaska between November and March, I’ll usually bring extra fuel, chemical additives to prevent the fuel from freezing, an oversupply of food (including food that will be palatable when frozen), a cold weather sleeping bag (rated to -25 degrees F), jumper cables and a tow rope with which a vehicle could be rescued after sliding off of an icy road. My tow rope has paid for itself on multiple occasions.
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