Showing posts with label weather. Show all posts
Showing posts with label weather. Show all posts

Monday, December 11, 2017

South Texas Snow

It isn’t every day that Houston wakes up to a blanket of snow covering the ground, but that was the surprise that greeted many South Texas residents this morning.

A winter storm covered the Texas prairie with the white stuff from San Antonio to Houston last night, surprising many residents this morning. No significant accumulation was expected in the Houston area as late as yesterday. Even though there were flurries last night, few Houstonians expected to wake and see the ground covered with white.

Houston snow is rare, but not unheard of. Houston’s ABC affiliate, KTRK, noted that snow has been recorded in the city 35 times since 1895. The last measurable snowfall was in December 2009. Snow is more common in northern areas of Texas such as Dallas and Amarillo than Houston, which is at approximately the latitude as Jacksonville, Fl.

A rare South Texas blizzard, called a “blue norther,” may have actually changed the course of Texas history. In 1836, Santa Ana’s army encountered such a blizzard on the way to San Antonio. Several of the poorly equipped Mexican soldiers died in the storm. Moving animals and wagons through the frozen mud exhausted others and sapped morale and delayed the arrival of the Mexican army at the Alamo.

This year’s snow is more enjoyable for Texans. From the hill country to the Gulf coast, children are engaging in snowball fights, eating snow ice cream and trying to scrape enough snow together to build a small snowman. Without equipment to remove snow and ice or salt roads, many schools are closed even for the light dusting. Residents, both young and old, are giddy about the once-in-a-decade event.

The snow in Houston caps off a year of highs and lows for the city. 2017 began with a Super Bowl. The end of the summer saw Hurricane Harvey bring disastrous flooding to the area. In October, the Astros thrilled the city with its first World Series title. Now, as the year draws to a close, the rare snowstorm seems magical.

Most of the snow will be gone by lunchtime as temperatures climb to high near 50, but in the meantime, Houstonians of all ages will revel in it.

“It’s beautiful,” said nine-year-old Sarah. “It’s a winter wonderland.”


Originally published on The Resurgent

Saturday, May 16, 2015

The climate change conspiracy

Today we don our tinfoil hat to look at the issue of climate change. While climate change, previously referred as global warming, isn’t usually considered a conspiracy theory, it does share many conspiracy characteristics.

One obvious parallel between climate change and conspiracies is that proponents of climate change have made numerous predictions about the effects of climate change. Like predictions about martial law and FEMA camps, very few of these predictions have come true.

The numerous doomsday predictions of climate scientists are well-documented, although few media sources compare the actual climate events to the sensational headlines from between 10 and 30 years ago. Partial lists can be found in sources as varied as the Washington Times, Townhall.com, and Daily Tech. A more complete list can be found on WattsUpWithThat.com. These failed predictions include:

· In 1989, a senior UN climate scientist said that nations could be destroyed by climate change by the year 2000.

· In the late 1980s, Dr. James Hansen of NASA predicted that New York’s West Side Highway would be underwater in 20-30 years and that severe droughts would lead restaurants to serve water by request only.

· In 2000, Dr. David Viner said that snow would soon be “a very rare and exciting event” and that “children just aren’t going to know what snow is.” Recent winters in both the UK and the US have set records for snowfall and low temperatures.

· In 2005, the UN warned that there would be 50 million climate refugees by 2010.

· In 2007, scientists feared that Arctic ice would be entirely gone by 2013. Yet less than a decade later, ice coverage in the Arctic has dramatically increased in both thickness and area.

· In 2006, Al Gore predicted in “An Inconvenient Truth” that sea levels would rise enough to threaten Pacific island nations. This was merely one of many fallacies in Gore’s movie.

· In 2006, Al Gore said that we had “10 years” to act on global warming.

Like proponents of other conspiracy theories, global warming alarmists are undaunted when their predictions fail. Like believers in martial law and FEMA concentration camps, global warming proponents simply revise their theory to explain the delay and change the dates on their predictions.

Perhaps because of the inaccuracy of these predictions, the term “global warming” has largely been replaced by the more ambiguous term “climate change.” Climate change can be blamed for a number of weather phenomena that global warming cannot. While denying that cold weather is proof against global warming, proponents simultaneously blame both hot and cold weather on climate change. The Daily Caller and the Daily Signal have both compiled lists of things that alarmists attribute to climate change. As other conspiracy theorists twist news stories to fit their theory, climate change proponents also frequently find a climatological angle to events of the day. Some of the things attributed to global warming include droughts, Ebola, rape, and the Syrian civil war.

The term “climate change” probably also entered the vernacular because global warming apparently stopped about 20 years ago in the late 1990s. Climate scientists who disagreed with the “consensus” wrote as early as 2006 that warming had plateaued. No computer models predicted this pause in warming and climate change theorists initially did not even admit that it was occurring. Today the response ranges from denial that there is a global warming hiatus to adjusting theories to fit the new facts. Revising theories is true to the scientific method, but climatic computer models should be taken with a grain of salt until they can accurately predict future climate changes, rather than simply explaining what has already happened.

Recent revelations that 2014 was the “hottest year in recorded history” often fail to note that recorded climate observations only go back to 1880, notes Robert Tracinski in The Federalist. Also missing from the stories is that the increase in 2014 was 0.02 degrees Celsius, which is far less than the margin of error of 0.10 degrees Celsius. Rising sea levels can be explained by the fact that sea levels have been rising since before the 20th century. In fact, a NASA graph shows that sea levels have been rising since the last glacial maximum 25,000 years ago. Rising temperatures and rising seas are both far less than predicted by global warming alarmists.

Although warming proponents widely believe that humans are contributing to climate change, they do not claim that this is being done purposefully to destroy the world. Where is the conspiracy that turns the theory of climate change into a conspiracy theory?

Alarmists might argue that the conspiracy comes from a conspiracy of oil companies to undercut climate change activists, presumably selling out the world’s future for short-term oil profits. To the alarmists, this excuses ad hominem attacks against skeptics, commonly derided as “deniers.”

The reality is that there is a proven conspiracy to silence climate change skeptics. In 2009, a hacker stole 1,000 emails and 3,000 documents from the Climate Research Unit at the University of East Anglia and posted them online. Another 5,000 emails were hacked and released in 2011. As James Taylor wrote in Forbes, the emails show that many scientists who contribute to IPCC reports engaged in deception and tried to conceal how weak the data supporting manmade climate change really was. Additionally, the emails showed that researchers were at a loss to explain both the recent global warming hiatus and the Medieval Warm Period, a 400 year period from the 9th to the 13th centuries when the Earth was warmer than it is today.

Alarmists use several methods to stifle dissent. A popular claim is that there is a strong scientific consensus on global warming and that 97 percent of scientists are in agreement. Joseph Bast and Dr. Roy Spencer found the 97 percent claim baseless when they examined it in a 2014 op-ed for the Wall Street Journal. In 2013, Forbes reported that a peer-reviewed study of earth scientists, engineers, and meteorologists found that only 36 percent considered global warming a crisis. The majority believed that global warming was a natural phenomenon and/or not a serious problem.

Many scientists may not want to publicly identify as skeptics. There are numerous reports of harassment of scientists and public figures who are skeptical of climate change alarmism. As far back as 2005, there were indications that skeptical papers were not being published in the prestigious, peer-reviewed scientific journals. The bias against skeptical papers may well explain the small number of papers published by skeptical scientists. Earlier this year, NPR reported on harassment of skeptics by Rep. Raul Grijalva (D-Ariz.). Some, such as Robert F. Kennedy, Jr., have called skepticism “treason” and called for skeptics to be jailed. In another recent case, Western Washington University students tried to have the college degree of self-proclaimed “climate agnostic” Doug Erickson, a state senator from Washington, revoked by the university.

The bottom line of the debate may be whether climate alarmists put their money where their mouths are. There seems to have been no exodus of wealthy, liberal, climate refugees from low-lying coastal cities such as New York, Los Angeles and San Francisco to higher ground in “flyover country.” In fact, in 2010 Al Gore purchased an ocean-view mansion in California. In Florida, people will learn about climate change – and irony - at the new Frost Museum of Science, a $300 million facility located in Miami at about eight feet above sea level.

 

Read the full article on Examiner.com

Wednesday, September 11, 2013

Globalair.com introduces new mobile site for pilots

examinerGlobalair.com has introduced a new mobile version of its website for pilots. The site is free, but resembles many downloadable applications in both appearance and utility. The site contains a wealth of information for pilots and can be a valuable resource. Additionally, the site can be easily used by nonpilots since it does not require a pilot license or any login information.

The mobile site, which was introduced to the public at Oshkosh, contains three sections, which are selectable from the home page. Users can choose from “Aircraft for Sale,” which lists aircraft classified ads. The “Airport Resource Center” provides pilots with access to airport, airspace and weather information. The “Aviation Directory” contains listings for a variety of aviation businesses.

Clicking the “Aircraft for Sale” button takes the user to a listing of broad categories of aircraft such as “jets” or “single engine pistons.” Selecting the desired category will open a menu of manufacturers, which can then be opened into that company’s various aircraft types. Many of the listings include pictures as well as buttons to send an email to the seller or to call the seller’s phone number with a single touch.

Realistically, most people probably will never buy an airplane, but it can be fun to browse the listings and dream. For example, what red-blooded pilot wouldn’t be tempted by the listing for a 1945 North American P-51 Mustang (dual controls, based in Texas, with only 135 hours since major overhaul on its Rolls Royce Merlin engine)? If you have $2.1 million, it can be yours. (Have you bought your lottery ticket yet?) The stunning photos of this beautiful warbird alone are worth scanning the listings.

Another interesting find is a 1967 Mikoyan Gurevich MiG-21 Fishbed. This former Soviet jet fighter, which now lives in California, can be acquired for the bargain price of $79,500. This is cheaper than many single-engine propeller planes.

Speaking of single-engine piston airplanes, pilots looking for a trainer or a family airplane won’t be disappointed. There are myriad listings for more traditional airplanes such as Cessna, Piper, Cirrus, Beechcraft, and the like. Many of these smaller airplanes will fit even limited budgets, such as the 1970 Cessna 150 that lists for $20,500.

The “Aviation Resource Directory” section contains listing for many aviation related businesses and organizations. The listings contain links to websites as well as phone numbers. There are numerous categories (and subcategories) so that users can find whatever service they are looking for. Business owners and organizations can also submit their own company information for a free listing.

Probably the most useful aspect of Globalair.com’s new mobile site for the pilot on the go is the “Airport Resource” section. This section allows the user to search for a variety of aviation facilities by state or by name. Unlike many websites or apps, Globalair.com allows the user to refine their search to seaplane bases, heliports, balloon ports or STOLports.

When a facility is selected, the information about the airport is available to the user. This includes common items such as an airport diagram if available, runway information, weather, terminal procedures and an airport business directory. Globalair.com also goes a step further by including a phone numbers and directions for nearby hotels and restaurants for those pilots seeking the proverbial “$100 hamburger.” The listings even include nearby golf courses.

Users can also use the Globalair.com mobile site to look up airspace fixes. In the age of GPS when going direct to a fix is often the primary means of navigation, Globalair.com is an easy way to find important details about fixes such as latitude and longitude, the chart where it can be found, the controlling air route traffic control center, and nearby airports.

Globalair.com also provides weather information to the pilot’s smartphone or tablet. In addition to METARs and TAFs, Globalair.com includes aviation weather charts that are often not found on other weather sources. There are the expected radar and satellite weather maps, but also turbulence and icing potential charts, convection outlooks, winds and temperatures aloft, and significant weather prognostication charts. The lack of ability to zoom may affect the utility of some charts for users with devices that have small screens, but in general pilots and weather fans will appreciate the availability of so much information in one place at no cost. A local radar map is available on the airport resource page.

One of the most unique and useful aspects of Globalair.com’s site is the ability to compare fuel prices. In addition to listing fuel prices in the airport information section, the site has the ability to map fuel prices over a geographic area. The feature can be used for either jet fuel or 100 low-lead avgas. Think Gas Buddy for airplanes.

For example, suppose a flight crew will be flying the boss to a meeting in Denver. The meeting is downtown so the boss doesn’t have a preference on which airport to use. If the captain searches for Denver area fuel prices on Globalair.com, he would see a map of the Denver area with airports labeled. The pilot could then touch each airport to go to the airport resource page for the most recent fuel prices and other information.

Scrolling to the bottom of the map yields a list of the 10 lowest fuel prices for airports within a 50 nautical mile radius. In the case of our hypothetical flight to Denver, the cheapest jet fuel can be found at Denver’s Centennial airport (KAPA) at $4.31 per gallon. A minor drawback is that the fuel prices on the “10 cheapest list” are by airport only. The user must click the airport name on the list or icon on the map to find out which FBO has the best price. On the airport resource page, the pilot finds that Tac Air is currently the home of Denver’s cheapest jet fuel.

Because the Globalair.com is a mobile site rather than an application, it functions well for either Apple or Android products. Much of the information available on Globalair.com would cost several dollars for an app and perhaps more for a subscription. The Globalair.com site is totally free and users are not even required to log in. Users seeking the full functionality of Globalair.com can also choose to view the full site on their mobile devices.

Pilots and nonpilots alike will enjoy Globalair.com’s new mobile internet site. Whether perusing the catalog of aircraft for sale, planning a flight or checking the weather, Globalair.com provides a wealth of useful information for users.

Originally published on National Aviation Examiner

Tuesday, May 1, 2012

New AOPA pilot app for Apple

The Aircraft Owners and Pilots Association recently announced the release of a new Apple application for pilots.  The application, called FlyQ, is free to download and use for AOPA members.  The app uses DUAT, the FAA’s online weather source for pilots, to provide pilots with legal weather briefings and the ability to file flight plans.

The app consists of three main areas, which are tabbed across the bottom of the screen.  The first of these is the airports tab.  This uses the location feature of the iPhone or iPad to automatically bring up a list of nearby airports.  Along with airport data such as runway, fuel available, and frequencies is a small tab that tells whether each airport is VFR, marginal VFR, IFR, or low IFR at a glance.

When an airport is selected from the list, more detailed information is available.  This includes most of the pertinent information that you would find in the Airport Facility Directory such as all frequencies, the airport elevation, and a runway diagram are listed as well as other items such as satellite photos of the airport.  Recent weather reports and forecasts are also displayed.  This page also lists nearby navaids and airports.  Airport services from FBOs to ground transportation to restaurants and local attractions are also listed.

The weather tab automatically pulls up nearby weather reports and radar along with nice-to-know things like the expected high and low temperatures and general forecasts for the next week.  The radar can depict local, regional or national information.

Weather charts for the U.S. and Canada are available under the Gallery section.  This allows pilots to view useful graphic charts such as Freezing Levels, Icing Potential, and Turbulence charts quickly and easily.  The search function allows the pilot to type in another airport, such as the destination or alternate, to view the weather there.  Aviation weather reports and forecasts can be viewed in the standard coded format or in a plain English translation.

The plans section allows the user to log into their DUAT account to create flight plans and receive official weather briefings.  This requires creating both a pilot profile and an aircraft profile.  Many aircraft have default values that populate their profile, but the user should confirm the entries before relying on the flight plan data.  The ability to build a profile for almost any airplane, along with a variety of routing options such as jet airways, GPS direct, and optimizing for best winds means that even professional pilots of long range jets can use the app for most of their flight-planning needs.

There are some weaknesses with the FlyQ app.  The most obvious is that it is currently only available on Apple products.  AOPA does say that there is an Android version in the works, but there is no word on when it will be released.

Another is that the app is limited to the United States.  Canadian weather and airport data is accessible from the app, but the flight plan feature does not work for flights to Canadian airports.  Likewise, the user can look at Caribbean and Mexican airports and weather, but cannot file a flight plan to or from these destinations.

Finally, it was hard to figure out how to delete an old flight plan.  The FAQs suggested selecting the flight plan and then tapping on the action button, the box with an arrow coming out of it, in the upper left corner.  This brings up several options including emailing, printing or deleting the flight plan.  Unfortunately, this does not always work.

The AOPA FlyQ app is a good tool for any pilot with an iPad or iPhone.  For the most part it is very quick, easy to use, and works well.  As a free service of the Aircraft Owners and Pilots Association, FlyQ could easily replace more expensive apps or programs.  With avgas and jet fuel prices so high, most pilots would probably be happy to save the money.  FlyQ is available in the Apple app store.

Read the rest of this article on Examiner.com:

http://www.examiner.com/review/aopa-releases-new-pilot-app-for-apple-products

Thursday, March 8, 2012

Solar storm diverts flights

The Earth is currently experiencing the impact of a massive solar storm that experts believe may be strong enough to impact aviation and commonly used electronic devices. GPS satellites, power grids, and telecommunications are a few of the areas that might be affected by the storm on the sun. The current solar storm is expected to be the largest in at least five years.

According to NASA, solar storms are caused by solar flares and coronal mass ejections (CMEs) that erupt from the sun. The flares and CMEs send billions of tons of magnetic radiation hurtling through space and occasionally planets and spacecraft travel through its path. NASA further states that solar activity rises and falls on cycles that last about 11 years. In 2009, NASA forecast that the current solar cycle would peak in May 2013.

Since solar radiation collects around the poles, storms can affect transoceanic flights. Because the Earth is round, the shortest distance between two widely separated points often looks curved when plotted on a flat map. Flights between the United States and Europe or Asia often travel north over the Arctic rather than straight across the ocean, the route that seems obvious on a map. These are called Great Circle routes.

To see the difference, use a globe to measure the distance between two points on different continents, first straight across the ocean and then over the pole. You can also see great circle routes using gcmap.com. On a sample flight from New York to Hong Kong, the great circle route over the North Pole is 8,072 miles and the airplane would fly northwest initially. If the aircraft flew more westerly to follow the flat map route, the distance would increase to as much as approximately half of the 24,900 mile circumference of the Earth. Obviously the flight would last much longer and use more fuel.

Last month, Aviation News reported that Delta Air Lines was diverting flights between its Detroit hub and destinations in Asia. The longer route reportedly only added about 15 minutes to the flight time. United reported diverting one flight and American Airlines said that its operations were not impacted. The increased fuel used for longer routes can add significantly to the cost of operating the flight.

It is highly unlikely that the solar radiation would cause any direct danger to humans, but it could affect electronic navigation and communications. Aircraft on long overwater flights where fuel and navigation are critical would be particularly susceptible to the storms. Even more vulnerable are communications satellites that are not protected from the radiation by the Earth’s atmosphere. Likewise, astronauts in orbit would need to keep to heavily shielded areas of their spacecraft.

On rare occasions, a solar storm can be powerful enough to cause more serious problems on the surface of the Earth. In 1859, a massive solar storm caused telegraph wires to short out, starting numerous fires according to Space.com. This storm made the aurora borealis, the Northern Lights, visible as far south as Cuba. A smaller storm cut power to the entire province of Quebec in 1989. As the world becomes more dependent on electronic devices, it is also more vulnerable to solar storms. Advance warning from astronomers allows power grids and satellites to be shut down or otherwise protected from the cosmic radiation.

Solar storms might affect aviation and the world in general in other ways as well. Many scientists believe that solar activity has a direct affect on the Earth’s weather. Often solar inactivity corresponds with colder terrestrial temperatures while periods of high activity on the sun lead to high temperatures and stormy weather on Earth. A NOAA graph of the solar cycle appears to correspond closely to globally averaged satellite-based temperatures. As the sun approaches the height of its cycle, the solar maximum, the Earth may experience warmer average temperatures and severe storms.

For the most part however, most people with not notice any effect from most solar storms. Your flight to China might be marginally longer, but it will just give you more time to admire the Northern Lights while enroute.

Originally published on Examiner.com:http://www.examiner.com/aviation-in-national/solar-storm-diverts-airline-flights