Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5858864 Wed, 23 May 2012 18:57:58 GMT http://amsstationscientist.ametsoc.org/post?id=5858158 sac Louis Vuitton Louis Vuitton besoin d'aucune introduction donnée sa popularité à la collecte de la station et pour ses designs variés et divers. Selon Fashinista, Louis Vuitton a fait un bond de 23% d'augmentation des ventes de sacs à main en 2010 (par rapport à celle de 2009). Louis Vuitton Alma Outlet Les sacs à main designer de Louis Vuitton sont connus pour leurs besoins de voyage et luury besoins saisonniers Louis Vuitton pas cher. Ces dessins sont eclusively conçu pour répondre au fleible et articles de voyage présaison pour ceu ayant bord monétaire de passer un hiver ou échapper à un été au collectivités moins vulnérables. En 2004, la création de l'avenir continuera à surveiller les développements dans le domaine des tendances professionnelles, Louis Vuitton montre de montagne en Suisse La Chaudefonds a mis en place une horloge studio. Selon le responsable Louis Vuitton LV de gestion de réseau couche Louis Vuitton Outlet Artsyàdire, cette signification implicite est «complètement contrôler la qualité des montres Louis Vuitton, et de développer plus de fonctionnalités pour le net montre Louis Vuitton pour se préparer à." Les gens qui ressemble à ça la mise à niveau au cours de rang serait le paraphés ou monogramme Ellipse Sac d'un sac fabuleu dos. Ce transporteur offre valable le chèque à une promenade, si le genre d'un sac à dos de pointe. Un chèque logo de l'entreprise fournit ce sac de voyage approche généralement le début spéciale à la recherche qui ont un toucher Etra simplifié et compliqué pour it.deluelv Vous pouvez mettre sur ce sac à dos unique, décontracté dans vos jeans avec des chaussures et habiller l'avoir deu pantalons long avec le bouton dans le logiciel de diminuer principale avec vos mocassins. La possession d'intérieur diddly est d'environ l'espace de stockage avant que vous devenez, mais l'intérieur est normalement suffisant pour vous aider à bourrer avec les articles muchneeded. Articles connees Louis Vuitton Outlet, Louis Vuitton Speedy, Louis Vuitton Keepall, Louis Vuitton Neverfull, Envoyer cette article à un ami! Recevez articles comme celuici directement sur votre email bo! Abonnezvous gratuitement dès aujourd'hui!

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5858158 Wed, 23 May 2012 09:31:30 GMT http://amsstationscientist.ametsoc.org/post?id=5856985 NOAA scientists published a study in 2009 that stated "Nitrous oxide has now become the largest ozone-depleting substance emitted through human activities, and is expected to remain the largest throughout the 21st century...".  You can see the story here at:

http://www.noaanews.noaa.gov/stories2009/20090827_ozone.html

Now a new study has been published in the AGUs Geophysical Research Letters about the impact of biofuels on stratospheric ozone.  The study can be found here:

http://www.agu.org/pubs/crossref/2012/2012GL051546.shtml

Here is the abstract:

Biofuels are becoming increasingly popular sources of renewable energy as economic pressures and environmental consequences encourage the use of alternatives to fossil fuels. However, growing crops destined for use as biofuels incurs large N₂O emissions associated with the use of nitrogen-based fertilizers. Besides being a greenhouse gas, N₂O is also the primary source of stratospheric NO_x (NO + NO₂) which leads to stratospheric ozone depletion. In this paper, the potential effects on the ozone layer of a large-scale shift away from fossil fuel use to biofuels consumption over the 21st century are examined. Under such a scenario, global-mean column ozone decreases by 2.6 DU between 2010 and 2100 in contrast to a 0.7 DU decrease under a control simulation (the IPCC SRES B1 scenario for greenhouse gases) and a 9.1 DU increase under the more commonly used SRES A1B scenario. Two factors cause the decrease in ozone in the biofuels simulation: 1) large N₂O emissions lead to faster rates of the ozone-depleting NO_x cycles and; 2) reduced CO₂ emissions (due to less fossil fuel burning) lead to relatively less stratospheric cooling over the 21st century, which decreases ozone abundances. Reducing CO₂ emissions while neglecting to reduce N₂O emissions could therefore be damaging to the ozone layer.

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5856985 Tue, 22 May 2012 14:43:04 GMT http://amsstationscientist.ametsoc.org/post?id=5854890 There's no need being a professional chief cook to have the melted hen ahead out there perfectly. Uncover the strategies and also tips knowledgeable cooks utilize to have their particular melted hen added  discount LV artsy empreinte externally, and also smooth and also moist internally.

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5854890 Mon, 21 May 2012 07:48:37 GMT http://amsstationscientist.ametsoc.org/post?id=5847956
on May 20th, skywatchers along a broad swath from northern California to the Texas Panhandle will see the Moon pass directly in front of the Sun, creating an annular ("ring") eclipse. virtually all of the rest of the U.S. (except for the Eastern Seaboard) will see a partial solar eclipse.

for details, see the Sky & Telescope press release:
http://is.gd/ZQV3ee

for a list of cities and times within the path, go here:
http://is.gd/diMceE

for an interactive map that provides local specifics (click on your location) go here:
http://is.gd/V5QEJU

finally, please feel free to distribute this link to your viewers and listeners:
http://is.gd/qofAjn

be sure to stress eye safety!


clear skies,
Kelly

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5847956 Wed, 16 May 2012 02:30:24 GMT http://amsstationscientist.ametsoc.org/post?id=5839343 May 10, 2012


Vol. 21, No. 12


For Additional Information:
Dr. John Christy, (256) 961-7763
  john.christy@nsstc.uah.edu
Dr. Roy Spencer, (256) 961-7960
  roy.spencer@nsstc.uah.edu


Global Temperature Report: April 2012


Global climate trend since Nov. 16, 1978: +0.13 C per decade


April temperatures (preliminary)

Global composite temp.: +0.30 C (about 0.54 degrees Fahrenheit) above 30-year average for April.

Northern Hemisphere: +0.41 C (about 0.74 degrees Fahrenheit) above 30-year average for April.

Southern Hemisphere: +0.18 C (about 0.32 degrees Fahrenheit) above 30-year average for April.

Tropics: -0.12 C (about 0.22 degrees Fahrenheit) below 30-year average for April.


March temperatures (revised):

Global Composite: +0.11 C above 30-year average

Northern Hemisphere: +0.13 C below 30-year average

Southern Hemisphere: +0.09 C below 30-year average

Tropics: -0.11 C below 30-year average

(All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)


Notes on data released May 10, 2012:

Spring brought somewhat more seasonal temperatures to the continental U.S., although it was still warmer than seasonal norms in April, according to Dr. John Christy, a professor of atmospheric science and director of the Earth System Science Center at The University of Alabama in Huntsville. Temperatures over the contiguous 48 states averaged 1.49 C (about 2.7 degrees Fahrenheit) warmer than seasonal norms in April, making it the fifth warmest April in the 33-year satellite climate record. That was cooler than the record-setting 2.82 C (almost 5.1 degrees Fahrenheit) anomaly in March.

April 2012 was the fourth warmest April in the temperature record both globally and in the Northern Hemisphere. It was the warmest April in 33 years for the Northern Extra Tropics — everything from 20 degrees North all the way to the North Pole. Average temperatures there for the month were 0.73 C (1.3 degrees F) warmer than seasonal norms.

The warmest and coolest spots on the globe show up as adjacent spots on the global map: Air over the Norwegian Sea was as much as 3.1 C (5.6 F) cooler than seasonal norms, while a large region of warmer than normal air over Europe peaked over Kazakhstan with temperatures as much as 5.92 C (10.66 F) warmer than seasonal norms.

Archived color maps of local temperature anomalies are available on-line at:

http://nsstc.uah.edu/climate/

The processed temperature data is available on-line at:

vortex.nsstc.uah.edu/data/msu/t2lt/uahncdc.lt

As part of an ongoing joint project between UAHuntsville, NOAA and NASA, John Christy, a professor of atmospheric science and director of the Earth System Science Center (ESSC) at The University of Alabama in Huntsville, and Dr. Roy Spencer, an ESSC principal scientist, use data gathered by advanced microwave sounding units on NOAA and NASA satellites to get accurate temperature readings for almost all regions of the Earth. This includes remote desert, ocean and rain forest areas where reliable climate data are not otherwise available.

The satellite-based instruments measure the temperature of the atmosphere from the surface up to an altitude of about eight kilometers above sea level. Once the monthly temperature data is collected and processed, it is placed in a "public" computer file for immediate access by atmospheric scientists in the U.S. and abroad.

Neither Christy nor Spencer receives any research support or funding from oil, coal or industrial companies or organizations, or from any private or special interest groups. All of their climate research funding comes from federal and state grants or contracts.

-- 30 --

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5839343 Thu, 10 May 2012 21:17:34 GMT http://amsstationscientist.ametsoc.org/post?id=5779909 from AAAS

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5779909 Mon, 02 Apr 2012 11:57:05 GMT http://amsstationscientist.ametsoc.org/post?id=5743076
for the past month the two brightest planets, Venus and Jupiter, have been an eye-catching duo in the western sky after sunset. now their celestial performance is about to culminate. by March 9th they'll be less than 5° apart, and from March 12th to 14th, the gap between them closes to just 3° as they pass one another in the evening sky.

more details (and high-res graphics) are here:
       http://www.skyandtelescope.com/Venus-Jupiter-March-2012

clear skies,
Kelly Beatty

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5743076 Wed, 07 Mar 2012 22:12:51 GMT http://amsstationscientist.ametsoc.org/post?id=5735509 Hi TV Mets and Night Sky Watchers:

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5735509 Fri, 02 Mar 2012 18:50:01 GMT http://amsstationscientist.ametsoc.org/post?id=5670223

Jan. 19, 2012

Steve Cole

Headquarters, Washington

202-358-0918

stephen.e.cole@nasa.gov

Leslie McCarthy

Goddard Institute for Space Studies, New York

212-678-5507

leslie.m.mccarthy@nasa.gov

RELEASE: 12-020

NASA FINDS 2011 NINTH WARMEST YEAR ON RECORD

WASHINGTON -- The global average surface temperature in 2011 was the

ninth warmest since 1880, according to NASA scientists. The finding

continues a trend in which nine of the 10 warmest years in the modern

meteorological record have occurred since the year 2000.

NASA's Goddard Institute for Space Studies (GISS) in New York, which

monitors global surface temperatures on an ongoing basis, released an

updated analysis that shows temperatures around the globe in 2011

compared to the average global temperature from the mid-20th century.

The comparison shows how Earth continues to experience warmer

temperatures than several decades ago. The average temperature around

the globe in 2011 was 0.92 degrees F (0.51 C) warmer than the

mid-20th century baseline.

"We know the planet is absorbing more energy than it is emitting,"

said GISS director James E. Hansen. "So we are continuing to see a

trend toward higher temperatures. Even with the cooling effects of a

strong La Nina influence and low solar activity for the past several

years, 2011 was one of the 10 warmest years on record."

The difference between 2011 and the warmest year in the GISS record

(2010) is 0.22 degrees F (0.12 C). This underscores the emphasis

scientists put on the long-term trend of global temperature rise.

Because of the large natural variability of climate, scientists do

not expect temperatures to rise consistently year after year.

However, they do expect a continuing temperature rise over decades.

The first 11 years of the 21st century experienced notably higher

temperatures compared to the middle and late 20th century, Hansen

said. The only year from the 20th century in the top 10 warmest years

on record is 1998.

Higher temperatures today are largely sustained by increased

atmospheric concentrations of greenhouse gases, especially carbon

dioxide. These gases absorb infrared radiation emitted by Earth and

release that energy into the atmosphere rather than allowing it to

escape to space. As their atmospheric concentration has increased,

the amount of energy "trapped" by these gases has led to higher

temperatures.

The carbon dioxide level in the atmosphere was about 285 parts per

million in 1880, when the GISS global temperature record begins. By

1960, the average concentration had risen to about 315 parts per

million. Today it exceeds 390 parts per million and continues to rise

at an accelerating pace.

The temperature analysis produced at GISS is compiled from weather

data from more than 1,000 meteorological stations around the world,

satellite observations of sea surface temperature and Antarctic

research station measurements. A publicly available computer program

is used to calculate the difference between surface temperature in a

given month and the average temperature for the same place during

1951 to 1980. This three-decade period functions as a baseline for

the analysis.

The resulting temperature record is very close to analyses by the Met

Office Hadley Centre in the United Kingdom and the National Oceanic

and Atmospheric Administration's National Climatic Data Center in

Asheville, N.C.

Hansen said he expects record-breaking global average temperature in

the next two to three years because solar activity is on the upswing

and the next El Nino will increase tropical Pacific temperatures. The

warmest years on record were 2005 and 2010, in a virtual tie.

"It's always dangerous to make predictions about El Nino, but it's

safe to say we'll see one in the next three years," Hansen said. "It

won't take a very strong El Nino to push temperatures above 2010."

For more information on the GISS temperature analysis, visit:

http://data.giss.nasa.gov/gistemp

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5670223 Thu, 19 Jan 2012 18:31:07 GMT http://amsstationscientist.ametsoc.org/post?id=5617069 http://www.nrdc.org/health/extremeweather/methods.asp
see animated map... 20 seconds

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5617069 Sun, 11 Dec 2011 10:58:40 GMT http://amsstationscientist.ametsoc.org/post?id=5610103

Mega_Droughts in the NE of the United States can last 500 years!

Results of science research by NASA scientist just released, Dec. 6^th, at aGU 2011

KEY FINDINGS : http://www.nasa.gov/pdf/607776main_Dorothy%20Peteet%20(Megadroughts).pdf

pptx slides are available from the site.

Core samples from the marshes along the Hudson river indicate that mega-droughts have happened in the past.  10 Million people depend upon the Catskills as a source of water. What if a medga-drought hit?

1.  *Cores indicate at least 3 "mega-droughts" have occurred in the

        last 6,000 years.

2.  *The longest –began around 850 and lasted about 500 years until 1350. 

3.  *Shorter but possibly more intense droughts occurred

a.  5,480 years ago.

            b.  5,745 years ago.

Droughts: detectable in cores as a thick charcoal layer, changes

in pollen, foraminifera, and seed assemblages, and evidence of salt

water moving up the Hudson  –

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5610103 Tue, 06 Dec 2011 13:24:59 GMT http://amsstationscientist.ametsoc.org/post?id=5608477 0 0 1 478 2729 Center for Climate Change Communication 22 6 3201 14.0

Air pollution acts as steroids for tornadoes for Tuesdays thru Thursdays. NASA scientist co-author of study: Thomas Bell, GSFC;   PA: adam.p.voiland@nasa.gov

Key Points:

Tornado activity peaks in the middle of the week (Tuesday-Thursday) compared to weekends.

The weekly cycle is believed to be caused by the higher levels of air pollution mid-week.

Pollution aerosols can cause convective storms to become severe.

o   Aerosol pollution decreases the size of water droplets coalescing in clouds. They are lighter and don’t fall out as rain, but instead rise to much higher altitudes where they freeze and release additional heat. This invigorates the storm and produces more ice aloft.

o    

See graph: number of tornadoes  and air pollution vs day of the week:

http://wiki.nasa.gov/cm/blog/whatonearth/posts/post_1322634265523.html

NASA doesn’t have an animation for this story yet. But the later part of this animation,

http://svs.gsfc.nasa.gov/vis/a010000/a010400/a010402/index.html

From 1:00 to the end at 1:29 shows a tornado developing at last few frames.

Available formats: HD 1280x720   MPEG-4   14 MB     or      1280x720   MPEG-2   77 MB 

Previous blog story on lightning data during mid-week: interesting graphic. http://blogs.nasa.gov/cm/blog/whatonearth/posts/post_1266609787812.html

Other NASA bloggers: http://blogs.nasa.gov/cm/newui/blog/blogs.jsp

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 116, D20211, 14 PP., 2011
doi:10.1029/2011JD016214

http://www.agu.org/pubs/crossref/2011/2011JD016214.shtml

Daniel Rosenfeld Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel

Thomas L. Bell Climate and Radiation Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

This study shows for the 1^st time statistical evidence that when air pollution aerosols over the eastern United States during summertime are at their weekly mid-week peak, tornado and hailstorm activity there is also near its weekly maximum.   This research supports the hypothesis that air pollution aerosols invigorate deep convective clouds  to the extent of inducing production of large hailstones and tornados. Small pollution aerosols affect  cloud-drop  nucleation, making cloud drops smaller and hydrometeors larger. According to simulations, the larger ice hydrometeors contribute to more hail. The statistical observations suggest that this might be the mechanism by which the weekly cycles in aur pollution  is causing a corresponding weekly cycle in severe convective storms during summer over the eastern United States. Although we focus here on the role of aerosols, they are not a primary atmospheric driver of tornados and hailstorms but rather modulate them in certain conditions. The weekly cycle in summertime storm activity for 1995–2009 was found to be statistically significant and unlikely to be due to natural variability.  It correlates well with previously observed weekly cycles of other measures of storm activity.

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5608477 Mon, 05 Dec 2011 12:52:29 GMT http://amsstationscientist.ametsoc.org/post?id=5568066
on Tuesday night, 11/8, a quarter-mile-wide asteroid will pass about 200,000 miles from Earth. here are some helpful stories from Sky & Telescope:

background:    http://is.gd/e9jTE7
finder charts:    http://is.gd/LTMgOL
amateur skywatchers to assist professionals:    http://is.gd/PJm0HY

clear skies,
Kelly

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5568066 Mon, 07 Nov 2011 16:08:48 GMT http://amsstationscientist.ametsoc.org/post?id=5567805 Hi Larry—I do one with the students called “Project Housebuster” that I adapted from an NSTA Science Teacher article I read in the mid 90’s.  Basically, the students are required to go through various stages of building a model house that can withstand hurricane forces.  During the building process, I track a “fictitious” hurricane toward the school, all the while, detailing it from a Tropical wave, to depression, to storm and eventually into a full blown hurricane.  We cover the naming conventions of the hurricanes, talk about their formation, the categories, and cover all of the basics of hurricanes during the days of building.  The steps are as follows:

(1)     Create an exterior and interior blueprint of their house (it doesn’t have to be elaborate, just a way for them to organize their thinking)

(2)    Once it has been approved by the building inspector (me), they are give a set amount of building materials for the construction:

a.       Spaghetti sticks for the frame

b.      Construction paper for walls

c.       Hot glue sticks for securing all of it together.  Now, it might not seem like it would withstand much, but the students learn how to make their structures much more durable by using interior walls, roof shape, etc….

(3)    I encourage them to use other objects outside their houses, such as toy cars, trees, even pools with water because those are some of the most dangerous things during wind event.

(4)    I usually give the students 3-4 days to build, giving them the “Hurricane Watch” (2-days left), then “Hurricane Warning” it will hit in the classroom the next day!

(5)    I then get a leaf blower, rated anywhere from 120-150 mph and begin the process of blowing down the houses.  This is usually the highlight of the lab, and the kids really enjoy it.

Its amazing how much they learn about engineering, hurricane formation, why some places have hurricanes and other don’t, and so much more during this unit.

I can send you a copy of the sheet if you would like.

Let me know if you have any questions.

Forum: Story Ideas ]]> http://amsstationscientist.ametsoc.org/post?id=5567805 Mon, 07 Nov 2011 13:32:44 GMT