Tag Archives: colorado

Erstes weltweites Gletscherinventar erstellt

By Guest PostMay 11, 2014Environmentantarktis, aus dem eis, colorado, daenemark, david flannigan, deutschland, digital artist, erde, esa, gabriel pulecio, geschichte, glaziologe, hauptlaermquelle, klimawandel, light collider, polen, saturn submerged, tad pfeffer, through, traps infinity, verkehr

Was bisher nur für wenige Gebiete galt, ist jetzt für alle Gletscherregionen der Erde bekannt: „Endlich wissen wir, wie viele Gletscher es auf der Erde gibt, wo sie sich befinden, wie groß sie sind und wie viel Eis in ihnen gespeichert ist“, sagt der Glaziologe Georg Kaser über das von ihm mitinitiierte globale Gletscherinventar.

Eine große internationale Gruppe von Wissenschaftlerinnen und Wissenschaftlern hat so gut wie alle Gletscher auf der Erde kartiert und in computerlesbare Form im Randolph Gletscher Inventar (RGI) zur Verfügung gestellt. Dank dieser Anstrengungen ist es für Glaziologen nun möglich, mit bisher nicht erreichter Genauigkeit die Auswirkungen des Klimawandels auf jeden einzelnen Gletscher weltweit zu berechnen. Insgesamt bedecken die rund 200.000 Gletscher der Erde (ohne die Eischilde Grönlands und der Antarktis) eine Fläche von etwa 730.000 km² und haben ein Volumen von rund 170.000 km³. „Damit wurde die genaue Modellierung der Gletscherreaktion auf Klimaänderungen stark verbessert“ sagt Georg Kaser vom Institut für Meteorologie und Geophysik der Universität Innsbruck. (more…)

App Offers Flurry of Exciting Features for Skiers

By Guest PostMarch 18, 2013Technologycanada, China, colorado, heavenly mountain resort, kevin ashley, lake tahoe, Microsoft, nokia collection, randy guthrie, ride app, silicon valley startup, snowboard instructors, windows phone, windows phone 8, winter ski, youtube videos, zoomable

Winter Ski & Ride app for Windows Phone helps you plan ultimate outings, keep track of your friends on the slopes, and beat your personal best.

REDMOND, Wash. – Winter Ski & Ride, a new Windows Phone app in the Nokia Collection, is taking skiing and snowboarding to a new altitude.

Say you’re riding a ski lift to the top of a snow-covered mountain, be it in Colorado, Canada or China. You touch the screen of your Nokia device, with frosty, gloved hands, and pass the lift time by looking at your stats. How many runs have you done? What was your top speed? You look at your contacts, and note what friends are still on the mountain. You decide to ski a mogul-heavy double black diamond run next, and watch a short video by a professional instructor to brush up on your bump skills. (more…)

JILA Physicists Achieve Elusive ‘Evaporative Cooling’ of Molecules

By Guest PostDecember 30, 2012Scienceatoms, bec, bose einstein condensate, boulder, chemical reaction, colorado, control, cool atoms, cup of coffee, electromagnetic pulses, energy state, evaporative cooling, gas, hydrogen atom, hydroxyl radicals, jila, jila theorist, john bohn, jun ye, magnetic fields, millikelvin, mk, molecules, novel way, oh, oh molecules, oxygen atom, physicists, potassium, potassium rubidium molecules, quantum simulators, reactive molecules, rubidium atoms, ultracold chemistry, university

Achieving a goal considered nearly impossible, JILA physicists have chilled a gas of molecules to very low temperatures by adapting the familiar process by which a hot cup of coffee cools.

JILA is a joint institute of the University of Colorado Boulder and the National Institute of Standards and Technology located on the CU-Boulder campus. (more…)

Rise in Teen Marijuana Use Stalls, Use of Synthetic Marijuana and ‘Bath Salts’ is Very Low

By Guest PostDecember 22, 2012Culture, Generaladderall, amphetamines, barbiturates, bath salts, cannabinoids, cannabis, cocaine, colorado, crack, daily use, dea, designer drugs, ecstasy, hallucinations, hallucinogens, heart rate, herbs, heroin, illicit drug, index, indicator of use, k 2, lloyd johnston, lsd, marijuana use, narcotics, oxycontin, paranoia, psychotherapeutic drugs, rise, salvia, salvia divinorum, sedatives, side effect, spice, statistical significance, suicidal thoughts, synthetic cathinones, synthetic marijuana, teen marijuana, tobacco, tranquilizers, vicodin, violent behavior, Washington

ANN ARBOR — National samples of 45,000 to 50,000 students in three grades (8, 10, and 12) have been surveyed every year since 1991 as part of the nationwide Monitoring the Future study. Among the most important findings from this year’s survey of U.S. secondary school students are the following:

Marijuana. After four straight years of increasing use among teens, annual marijuana use showed no further increase in any of the three grades surveyed in 2012. The 2012 annual prevalence rates (i.e., percent using in the prior 12 months) were 11%, 28%, and 36% for 8th, 10th, and 12th graders, respectively. (Among the 8th graders there was a modest decline across the past two years—from 13.7% in 2010 to 11.4% in 2012—that reached statistical significance.) (more…)

Massive Crevasses and Bendable Ice affect Stability of Antarctic Ice Shelf, CU-Boulder Research Team Finds

By Guest PostDecember 8, 2012Environmentantarctic peninsula, boulder, breakup, catastrophic collapse, colorado, crevasses, daniel mcgrath, floating, glacial inflows, glacial outlets, harihar rajaram, ice shelf, ice type, icebergs, konrad steffen, larsen a, larsen b, larsen c, last century, massachusetts, meltwater, seawater, sheet of ice, southern hemisphere, summer, suture zones, ted scambos, tom weston, university, waleed abdalati, warmer climate, weddell sea

Gaping crevasses that penetrate upward from the bottom of the largest remaining ice shelf on the Antarctic Peninsula make it more susceptible to collapse, according to University of Colorado Boulder researchers who spent the last four Southern Hemisphere summers studying the massive floating sheet of ice that covers an area twice the size of Massachusetts.

But the scientists also found that ribbons running through the Larsen C Ice Shelf – made up of a mixture of ice types that, together, are more prone to bending than breaking – make the shelf more resilient than it otherwise would be. (more…)

Degraded Military Lands To Get Ecological Boost From CU-led Effort

By Guest PostNovember 16, 2012Environmentamerican west, arid ecosystem, arid land, atmospheric dust, bacteria, biocrusts, biological soil crust, boulder, central america, China, colorado, cyanobacteria, degraded, desert environment, dugway proving ground, erosion, extreme environment, ferran garcia pichel, fort bliss, fungi, general george patton, hawaii, inoculation, jayne belnap, lichens, metropolitan area, michael duniway, microbial communities, military activity, military exercises, military installation, military vehicles, modeling, mojave desert, mosses, new mexico, nichole barger, northwest utah, pollutant, polyacrylamide, probability, restore, sasha reed, soil erosion, soil fertility, soil surface, South Africa, south america, survival, texas, university, water retention, word war

Some arid lands in the American West degraded by military exercises that date back to General George Patton’s Word War II maneuvers in the Mojave Desert should get a boost from an innovative research project led by the University of Colorado Boulder.

Headed up by CU-Boulder Assistant Professor Nichole Barger, the research team is focused on developing methods to restore biological soil crusts — microbial communities primarily concentrated on soil surfaces critical to decreasing erosion and increasing water retention and soil fertility. Such biological soil crusts, known as “biocrusts,” can cover up to 70 percent of the ground in some arid ecosystems and are dominated by cyanobacteria, lichens, mosses, fungi and bacteria, she said. (more…)

Roots of Deadly 2010 India Flood Identified; Findings Could Improve Warnings

By Guest PostNovember 14, 2012Environmentarabian sea, bay, bengal, big thompson canyon, black hills, clouds, colorado, desert, dramatic rain, flash flood, himalayas, indian town, kristen rasmussen, leh, moisture, mountain, natural disaster, plains, reanalysis data, remote region, robert houze, satellite images, south dakota, storms, tibetan plateau, torrential downpour, total rainfall, university, valley, warning, Washington, weather forecaster

On the night of Aug. 5, 2010, as residents slept, water began rushing through Leh, an Indian town in a high desert valley in the Himalayas.

Average total rainfall in the area for August is about a half-inch. During this 24-hour period more than 8 inches fell, causing severe damage and leaving 193 dead, hundreds missing and thousands homeless.

“Flash flooding events don’t happen often but when they do they are some of the scariest, most dangerous and quickest natural disasters that can happen,” said Kristen Rasmussen, a University of Washington graduate student in atmospheric sciences. “But now that we know what types of conditions to look out for, flash flood warnings in remote regions of India might be possible.” (more…)

2001-02 Drought Helped to Shift Rocky Mountain Pine Beetle Outbreak into Epidemic

By Guest PostNovember 5, 2012Environment19th century, alpine research, Arctic, beetles, boulder, british columbia, climate, colorado, continental divide, drought, dynamics, epidemic, episode, evan pugh, forest, front range, lodgepole pine, mountain, native insect, new mexico, North America, northern, pine beetle, ponderosa pine, precipitation, rocky mountains, tania schoennagel, teresa chapman, thomas veblen, university, warmer climate, western slope, wyoming

A new University of Colorado Boulder study shows for the first time that episodes of reduced precipitation in the southern Rocky Mountains, especially during the 2001-02 drought, greatly accelerated development of the mountain pine beetle epidemic.

The study, the first ever to chart the evolution of the current pine beetle epidemic in the southern Rocky Mountains, compared patterns of beetle outbreak in the two primary host species, the ponderosa pine and lodgepole pine, said CU-Boulder doctoral student Teresa Chapman. The current mountain pine beetle outbreak in the southern Rockies — which range from southern Wyoming through Colorado and into northern New Mexico –is estimated to have impacted nearly 3,000 square miles of forests, said Chapman, lead study author. (more…)