загрузка...

Air . Planet . People - An Introduction to NCAR

-- Fostering deeper understanding of the atmosphere, Earth, and Sun -- At the National Center for Atmospheric Research, we don't forecast the weather. We get inside the weather, climate, and surrounding environment to understand it better. We collaborate with researchers all over the country and all over the world to study the thin layer of air that surrounds our planet and connects all of us to each other. We study the Sun, air chemistry, how the atmosphere interacts with the land and oceans, and how we change and are changed by weather and climate. Find out more: www.ucar.edu Visit us spark.ucar.edu The National Center for Atmospheric Research provides research, observing and computing facilities, and a variety of services for the atmospheric and related Earth sciences community. The University Corporation for Atmospheric Research serves as a hub for research, education, and public outreach for the atmospheric and related Earth sciences community. We provide services to and promote partnerships within a collaborative community of researchers and educators who are dedicated to understanding the atmosphere—the air around us—and the complex processes that make up the Earth system, from the ocean floor to the Sun's core. NCAR and the UCAR Community Programs are managed by UCAR, a nonprofit consortium of research universities, on behalf of the National Science Foundation and the university community.
Категория: Science & Technology
Время: 00:08:09
Теги: meteorology weather climate research climate change global warming atmospheric research chemistry physics Earth science environmental science computer modeling heliophysics astrophysics supercomputers observing observational engineering technology aircraft science NCAR UCAR
 

Climate Change as Simulated by the NCAR CCSM

Introduction This animation depicts global surface warming as simulated by the Community Climate System Model (CCSM), version three. It shows the temperature anomalies relative to the end of the 19th century, both over the entire globe and as a global average.The model shows the temporary cooling effects during the 5 major volcanic eruptions of this time period, and then the model's estimates of warming under the different scenarios; Commitment (no changes in greenhouse gasses relitive to the year 2000), B1 (CO2 level stabilizes at 550 ppm), A1B (CO2 stabilizes at 720 ppm) and A2 (CO2 increases to 840 ppm by the year 2100). The Research Effort This simulation is one of many using the CCSM for the fourth assessment of the Intergovernmental Panel on Climate Change (IPCC). It was a large effort sponsored by the National Science Foundation and the Department of Energy. The period shown is from 1870 to 2100. The red shading around the global average within the graph depicts the spread of five separate model experiments. The colors within the animation above the graph depict the temperature anomalies, blue being cooler and red being warmer.
Категория: Science & Technology
Время: 00:02:01.500
Теги: IPCC climate change global warming CCSM Community System Model Intergovernmental Panel on NCAR UCAR
 

NCAR - John Ainsworth pt1

John Ainsworth explains the untold history of why the government today operates without Constitutional limitations. Part 1 of 9 Special thanks to NCFreedom.us for making this presentation possible for the Constitutional Town Hall at the Lighthouse Convention Center in Raleigh, NC.
Категория: News & Politics
Время: 00:06:54.750
Теги: constitutional limitation 14th Amendment Reconstruction Acts state citizen lawful government
 

NCAR Sweet Jenny Jones

NCAR Sweet Jenny Jones
Категория: Entertainment
Время: 00:02:23.250
Теги: morris dance maroon bells colorado
 

NCAR - John Ainsworth pt2

John Ainsworth explains the untold history of why the government today operates without Constitutional limitations. Part 2 of 9 Special thanks to NCFreedom.us for making this presentation possible for the Constitutional Town Hall at the Lighthouse Convention Center in Raleigh, NC.
Категория: News & Politics
Время: 00:07:24.750
Теги: constitutional limitation 14th Amendment Reconstruction Acts state citizen lawful government
 

High temperatures beat lows - Gerald Meehl (NCAR) on Current & Future Climate

Twice as many record-breaking high temperatures have been set compared to record lows across the US in recent decades (see www.ucar.edu ). For future climate, computer models show the ratio climbing to 20:1 by 2050 and 50:1 by 2100. Day-to-day variability means we still get record cold days, but the record highs are far exceeding the lows. Gerald "Jerry" Meehl is an NCAR senior scientist. His research includes connecting the solar cycle to subtle changes in weather and climate on Earth; examining the consequences of global warming, including heat waves, droughts, storms, and other weather extremes; regional climate change; and El Niño and other influences of the tropics on global climate.
Категория: Science & Technology
Время: 00:01:48.750
Теги: climate change global warming temperature weather variability meteorology record highs record lows Gerald Meehl NCAR UCAR interview
 

Ocean currents likely to carry oil to Atlantic

Update: February 28, 2011 - What happened to the oil? Detectable amounts never made it to the Atlantic, at least not in an easily visible form on the ocean surface. In this follow-up article we review: * the difference between a projection and an actual forecast * the challenges of making short-term projections of natural processes that can act chaotically, such as ocean currents. See: www2.ucar.edu ------ June 3, 2010 A detailed computer modeling study released June 3, 2010, indicates that oil from the massive spill in the Gulf of Mexico might soon extend along thousands of miles of the Atlantic coast and open ocean as early as this summer (see www2.ucar.edu ). The modeling results are captured in a series of dramatic animations produced by the National Center for Atmospheric Research (NCAR) and collaborators. The colors represent a dilution factor ranging from red (most concentrated) to beige (most diluted). The simulations do not make any assumptions about the daily rate or total amount of oil spilled and the dilution factor does not attempt to estimate the actual barrels of oil at any spot. Instead, one unit per day of a liquid "dye tracer" is injected in the model at the spill site (injected continuously over the period April 20 through June 20). The animation on this page shows possible scenarios of what might happen to dye released in the upper 65 feet of ocean at the spill site. The dilution factor depicts how dye released at the site of the spill will be ...
Категория: Science & Technology
Время: 00:00:25.500
Теги: oil spill model gulf of mexico oil BP gulf oil spill oil slick oil plume NCAR
 

NCAR - John Ainsworth pt3

John Ainsworth explains the untold history of why the government today operates without Constitutional limitations. Part 3 of 9 Special thanks to NCFreedom.us for making this presentation possible for the Constitutional Town Hall at the Lighthouse Convention Center in Raleigh, NC.
Категория: News & Politics
Время: 00:07:14.250
Теги: constitutional limitation 14th Amendment Reconstruction Acts state citizen lawful government
 

Introducing HIAPER - the NSF/NCAR Gulfstream V Research Aircraft

HIAPER, a transformed Gulfstream V corporate jet, is a no-frills research aircraft capable of probing high into the atmosphere and flying to the most remote areas of the globe. First conceived in the 1980s and six years in the making, this $81.5 million aircraft is the largest community project undertaken to date by the National Center for Atmospheric Research. The aircraft is owned by the National Science Foundation (NCAR's sponsor) and maintained and operated on behalf of the atmospheric and Earth science community by NCAR. Learn more about HIAPER, the NSF/NCAR GV aircraft: www.eol.ucar.edu Follow HIAPER during its next research mission: www.eol.ucar.edu
Категория: Science & Technology
Время: 00:12:24.750
Теги: atmospheric research aircraft jet Gulfstream GV HIAPER EOL NCAR UCAR NSF HIPPO Project
 

Alfvén waves in motion - NCAR solar heating research - Movie 2

Related news: www2.ucar.edu Researchers pushed the resolution capabilities of the Atmospheric Imaging Assembly's telescope to the limit. These closeups of 2 seconds of data (looped repeatedly) zoom in on an area spanning about 27000 by 27000 miles (43500 by 43500 km), the same area highlighted by the white box at upper left in the righthand panel of Movie 1. The resulting grainy images provide the first-ever view of data confirming the role of Alfvén waves in transporting a significant amount of energy through the corona. The waves cause high-speed jets of hot material associated with spicules to sway, or wiggle side to side. These new satellite observations have revealed that the wiggling waves are over a hundred times stronger than previously measured, with amplitudes on the order of 12 miles per second (20 km/sec)—enough to heat the Sun's outer atmosphere to over a million degrees and drive the solar wind. This research sheds light on why the Sun's outer atmosphere, or corona, is more than 20 times hotter than its surface, and helps bring scientists a step closer to understanding the solar cycle and the Sun's impacts on Earth. Visualizations by Scott McIntosh, NCAR scientist, of data from the Atmospheric Imaging Assembly, a package of instruments aboard NASA's Solar Dynamics Observatory. The study, by scientists at NCAR, Lockheed Martin Solar and Astrophysics Lab, Norway's University of Oslo, and Belgium's Catholic University of Leuven, is published in the journal ...
Категория: Science & Technology
Время: 00:00:24.750
Теги: Alfvén waves Sun solar corona heat coronal heating spicules High Altitude Observatory Scott mcintosh HAO NCAR UCAR
 
<<Prev | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | Next>>