atmospheric temperature – Shamskm: A site to exchange knowledge and solutions

Climate Change Study Strengthens Link to Human Activities

By Guest PostDecember 5, 2012EnvironmentAntarctica, Arctic, atmospheric temperature, benjamin santer, berkeley lab, carbon dioxide, cfcs, chlorofluorocarbons, climate change, climate models, coolants, el niño, evidence, greenhouse gases, higgs boson, human factors, human influence, llnl, michael wehner, pacific decadal oscillation, phenomena, propellants, satellite data, simulations, southern oscillation, stratospheric temperature, tropospheric, tropospheric warming

Computer Models, Satellite Data Reveal Clearest Evidence Yet of Human Influence on Changing Temperatures

New research shows some of the clearest evidence yet of a discernible human influence on atmospheric temperature.

Published online in the Nov. 29 early edition of the Proceedings of the U.S. National Academy of Sciences, the study compared 20 of the latest climate models against 33 years of satellite data. When human factors were included in the models, they followed the pattern of temperature changes observed by satellite. When the same simulations were run without considering human influences, the results were quite different.

“We can only match the satellite record when we add in human influences on the atmosphere,” said Michael Wehner, a research scientist at Lawrence Berkeley National Laboratory (Berkeley Lab) Computational Research Division and a coauthor of the article, which involved colleagues from 16 other organizations and was led by Benjamin Santer, an atmospheric scientist at Lawrence Livermore National Laboratory (LLNL). (more…)

Global Sea Level Likely to Rise as Much as 70 Feet in Future Generations

By Guest PostMarch 22, 2012Environmentandrew kulpecz, atmosphere, atmospheric temperature, core, degrees celsius, earth, east antarctic, eniwetok atoll, future generation, global warming, greenland, humankind, ice sheets, james browning, james wright, kenneth miller, michelle kominz, mountain glaciers, new zealand, pacific ocean, partial melting, richard lane, rise of sea level, rock, Rutgers University, sea level, sindia sosdian, virginia, west antarctic, yair rosenthal

*Scientists looked back in time–in the geologic record–to see the future*

Even if humankind manages to limit global warming to 2 degrees Celsius (3.6 degrees Fahrenheit)–as the Intergovernmental Panel on Climate Change recommends–future generations will likely have to deal with a completely different world.

One with sea levels 40 to 70 feet higher than at present, according to research results published this week in the journal Geology. (more…)

NASA Satellite Shows a Mean Irene’s Fury

By Guest PostAugust 29, 2011Environmentatmospheric temperature, heavy rain, hurricane irene, tropical storm

After pounding North Carolina and Virginia on Aug. 27, Hurricane Irene made a second landfall near Little Egg Inlet, N.J., early Sunday morning, Aug. 28, still as a category one hurricane with maximum sustained winds of 75 mph (120 kilometers per hour). It then weakened slightly before making a third landfall over Coney Island, N.Y. as a 65-mph (100-kilometer-per-hour) tropical storm. Irene’s heavy rains, winds and storm surge are causing widespread problems throughout the U.S. mid-Atlantic and Northeast. (more…)

NASA’s Wise Mission Discovers Coolest Class of Stars

By Guest PostAugust 25, 2011Science40 light years, ammonia, astronomers, atmospheric temperature, brown dwarf family, california institute of technology, Chile, coldest brown dwarf, cool as the human body, davy kirkpatrick, failed stars, gas giant planets, hawaii, infrared processing and analysis center, infrared vision, jon morse, jupiter, magellan telescopes at las campanas observatory, methane, michael cushing, molecular signatures, NASA, nasa headquarters, nine light years away, palomar observatory, parent star, pasadena, proxima centauri, ross 154, solar system, spitzer space telescope, star like bodies, visible light telescope, w m keck observatory atop mauna kea, Washington, water, wide field infrared survey explorer, wise, wise 1541-2250, wise 1828+2650, y dwarfs

PASADENA, Calif. – Scientists using data from NASA’s Wide-field Infrared Survey Explorer (WISE) have discovered the coldest class of star-like bodies, with temperatures as cool as the human body.

Astronomers hunted these dark orbs, termed Y dwarfs, for more than a decade without success. When viewed with a visible-light telescope, they are nearly impossible to see. WISE’s infrared vision allowed the telescope to finally spot the faint glow of six Y dwarfs relatively close to our sun, within a distance of about 40 light-years. (more…)

NASA Satellite Tracks Menacing Australian Cyclone

By Guest PostFebruary 1, 20111 commentEnvironment, Science3d map, airs, anthony, aqua satellite, atmospheric infrared sounder, atmospheric temperature, australia, cairns, clouds, crippling floods, deep convective, earth, forecasters, heavy precipitation, infrared image, NASA, northeastern australia, queensland, saffir simpson scale, thunderstorm, tropical cyclone, water vapor, yasi

Fresh on the heels of a series of crippling floods that began in December 2010, and a small tropical cyclone, Anthony, this past weekend, the northeastern Australian state of Queensland is now bracing for what could become one of the largest tropical cyclones the state has ever seen.

The Atmospheric Infrared Sounder (AIRS) instrument on NASA’s Aqua satellite, built and managed by NASA’s Jet Propulsion Laboratory, Pasadena, Calif., captured this infrared image of Yasi on Jan. 31, 2011, at 6:29 a.m. PST (9:29 a.m. EST). The AIRS data create an accurate 3-D map of atmospheric temperature, water vapor and clouds, data that are useful to forecasters. The image shows the temperature of Yasi’s cloud tops or the surface of Earth in cloud-free regions. The coldest cloud-top temperatures appear in purple, indicating towering cold clouds and heavy precipitation. The infrared signal of AIRS does not penetrate through clouds. Where there are no clouds, AIRS reads the infrared signal from the surface of the ocean waters, revealing warmer temperatures in orange and red. (more…)

Tag Archives: atmospheric temperature

Climate Change Study Strengthens Link to Human Activities

Global Sea Level Likely to Rise as Much as 70 Feet in Future Generations

NASA Satellite Shows a Mean Irene’s Fury

NASA’s Wise Mission Discovers Coolest Class of Stars

NASA Satellite Tracks Menacing Australian Cyclone