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مباحث عمومی هواشناسی

وضعیت
موضوع بسته شده است.

Amir Mohsen

متخصص بخش هواشناسی
Bill Would Shift NOAA Resources from Climate Research
  • Published: May 28th, 2013 , Last Updated: May 28th, 2013

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By Andrew Freedman
Follow @afreedma
A bill being drafted in the House could potentially undermine the climate science research activities and the oceans programs of the National Oceanic and Atmospheric Administration (NOAA). It also would open up the weather satellite sector, which has been a troubled area for NOAA in recent years, to more privatization.
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This image from the Suomi-NPP weather satellite jointly developed by NOAA and NASA shows Hurricane Sandy moving up the eastern seaboard on Oct. 29, 2012.
Credit: NOAA/NASA.
The bill, known as the “Weather Forecasting Improvement Act,” would put more emphasis on research and development of new weather forecasting capabilities for anticipating near-term, high-impact events, such as tornadoes and hurricanes, at the possible expense of two of the agency’s other long-standing areas of focus — climate and marine science.
The bill was the subject of a May 23 hearing in the House Science Subcommittee on the Environment. It has not yet been formally introduced, and is largely being drafted by Republicans on the subcommittee, which has jurisidiction over NOAA’s National Weather Service, according to several close observers of the legislation.
Representatives of NOAA and the academic research community were absent from the hearing, which featured members of two private sector weather companies — AccuWeather and GeoOptics. In the past, AccuWeather has backed legislation to open more of NOAA’s activities to private competition.
NOAA said it was invited to the hearing but did not receive sufficient advanced notice to allow it to formulate a response to the bill and also clear testimony through the White House. The agency has asked for an opportunity to testify at a subsequent hearing. The subcommittee’s Democratic members requested a second hearing to give NOAA officials a chance to testify, and to bring in representatives of the academic research community, as well.
The hearing came largely in response to news coverage of the increasing gap between the accuracy of NOAA’s main weather forecasting model, known as the Global Forecast System (GFS) and a model run by the European Center for Medium-Range Weather Forecasts, or ECMWF. For example, the ECMWF model correctly projected Hurricane Sandy’s devastating left turn into the New Jersey coast about a week in advance, whereas the GFS model didn’t project that outcome until the storm was closer to the East Coast.
To try to narrow the modeling gap, the bill would direct NOAA’s Office of Atmospheric Research to undertake a research program to hone forecast accuracy, "placing priority on developing more accurate and timely warnings and forecasts of high-impact weather events that endanger life and property." The program would include a technology transfer component to ensure that insights and tools discovered on the research side of NOAA also benefit the operational side of the agency.
Currently, NOAA relies on many partnerships with the academic community to research new technology and provide new scientific insights, and has long had difficulty translating research conducted in one part of the multifaceted agency into successful programs in another part.
"The bill is an attempt to improve the role research plays in driving science into operations, which is a good concept, but NOAA does not have a stellar record when it comes to executing these transitions,” said Scott Rayder, senior advisor to the president of the University Corporation for Atmospheric Research in Boulder, Colo., a consortium which operates the National Center for Atmospheric Research and represents 104 research universities.
The draft bill would also require the NOAA chief information officer to issue a plan for allocating and developing high-performance computing capabilities to support improvements in the agency’s weather prediction models. Currently, NOAA lags behind the European Center and other forecasting centers worldwide when it comes to computing power, which has been pinpointed as a major contributing factor to the Europeans’ lead in weather modeling, but money recently appropriated by Congress as part of the supplemental bill in response to Hurricane Sandy is being used to address that.
As National Weather Service director Louis Uccellini told Climate Central earlier this month, the infusion of funding will allow the agency to triple its computing capacity. ““To go from 213 to 1,950 terraflops is the largest increase in computing capacity that we’ve ever had,” Uccellini said.
The draft bill also requires NOAA’s chief information officer to identify opportunities to “reallocate advanced-computing resources from lower-priority uses to improve operational weather prediction.” This section of the bill could result in a reduction in resources for NOAA’s climate research programs.
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NOAA is responsible for monitoring the U.S. and global climate system, producing a steady stream of reports to the nation. This graphic shows the January-May temperatures compared to average in the lower 48 states, when temperatures were the hottest on record.
Credit: NOAA/NCDC.
Subcommittee chairman Chris Stuart (R-Utah) said the bill “would balance NOAA's research portfolio by emphasizing weather research with the potential to protect lives and property.”
“In 2012, NOAA barely spent one-third of the resources on weather research as it did on climate research,” he said.
According to President Obama's Fiscal Year 2014 budget, NOAA would comprise the second-largest component of the U.S. Global Change Research Program, coming in second behind NASA. The agency currently issues climate projections utilizing cutting-edge computer models, and monitors the global climate system. It is also the home of the official climate data of the U.S., which is maintained at its National Climatic Data Center in Asheville, N.C.
NOAA's draft five-year research plan also contains a mix of weather and climate research programs aimed at making America more resilient in the face of extreme weather events, some of which are already becoming more intense and frequent due, in part, to manmade climate change.
Marshall Shepherd, a professor at the University of Georgia and president of the American Meteorological Society, told Climate Central that it is essential to maintain NOAA’s leadership in climate research while also improving weather forecasting. “I am fully supportive of making the U.S. the best weather modelers in the world, but we must also maintain a viable short (6-month to 2-year) and long-term climate modeling capacity,” he said in an email. “It would be short-sighted to dismantle that world-class capability.”
Mary Glackin, a former top administrator at NOAA now working at the American Meteorological Society, also said it would be shortsighted to elevate weather forecasting needs at the expense of climate prediction. Of the draft bill, she said, “It places weather at the forefront to potentially the exclusion to other earth science research work that may be done at NOAA.”
Glackin said that is flawed because there is a “spectrum of continuity” between weather and climate forecasts, and people — and most especially businesses — need information at different time scales.
The legislation only concerns NOAA’s atmospheric sciences programs, despite the many other federal agencies that conduct such research, including the Energy Department and the National Science Foundation. ““They’re trying to address this weather problem by only looking at NOAA, and I think that’s flawed. They have to look at federal investments across the board,” Glackin said.
[h=3]Opening Weather Satellites to the Private Sector The bill also seeks to address another looming gap, this one concerning weather satellites. The next generation of federal weather satellites are running years behind schedule and billions of dollars over budget, leading to calls to reform the satellite procurement system, and the bill responds to that need by allowing the government to purchase weather data from private weather satellite operators.
In allowing for such private sector data purchases, the legislation could boost a burgeoning private weather satellite industry while altering some of the satellite systems currently under development. Currently, the government works with the private sector to build and launch satellites, and NOAA and NASA operate them once in orbit.
NOAA has said that starting in 2017, there is likely to be a year-long gap in polar satellite coverage between the end of the design lifetime of the newest polar-orbiting satellite, and the launch of the next one. Just last week one of NOAA’s geostationary weather satellites mysteriously malfunctioned, forcing a backup satellite to take over.
GeoOptics, whose CEO, Conrad Lautenbacher, led NOAA during the Bush administration, is seeking to launch 24 or more satellites into low Earth orbit during the next eight years, and hopes to sell its environmental data to the government. Jon Kirchner, president and chief operating officer of GeoOptics, testified at the hearing along with Barry Myers, the co-founder of AccuWeather.
“The status quo of continuously purchasing costly systems and marginally effective improvements in current weather sensors effectively blocks investments in potentially new, more potent, lower cost, and proven data-sensing instruments, and is damaging our nation’s ability to keep pace in weather observations and predictions,” Kirchner told the members of the subcommittee.
Glackin, who led NOAA’s National Satellite and Information Service from 1999 until 2002, said buying data from the private sector would be “appropriate in some circumstances.” For example, she cited NOAA’s experience with buying lightning strike data from the private sector since the mid-1990s, rather than setting up a federal lightning observing network.
A caveat to such arrangements, Glackin said, is that even when the government buys data from a third-party provider, the risk still is borne by the government. In the event that the private company fails to deliver the data as expected, the government would then be responsible for that failure in most instances. “You should never lose sight that even if you’re buying data you’re not really transferring risk from the federal government.”
In addition, Glackin said that the public receives data from publicly owned satellites free of charge, but most private companies won’t be willing to just give away their data. For now, that data is available to the public, to businesses and to other countries, too. That could become a major sticking point in any contract negotiations. “If you’re going to use federal taxpayers’ dollars to procure it, it should be freely available to those taxpayers,” Glackin said. “The devil is in the details in these things.”
 

Amir Mohsen

متخصص بخش هواشناسی
WATCH: Storm Chasers Capture Footage Within Tornado


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By Jillian MacMath, AccuWeather.com Staff Writer

May 29, 2013; 5:37 AM


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The Discovery Channel crew aboard the TIV2 waits for storms to arrive in Clarendon, Texas, on May 25, 2009. Image courtesy of AccuChase09.
A violent tornado ripped through Smith County, Kan., on May 27, 2013. Storm chasers Brandon Ivey, Sean Casey and Herb Stein were on the ground to intercept the tornado and capture footage.
The crew shot the footage from within a specially-designed tornado interception vehicle called a TIV2, which was built to withstand extreme winds. The vehicle has several unique safety features, such as the use of unbreakable, polycarbonate glass and hydraulic spikes which anchor the vehicle into the ground.
According to the crew, wind speeds were recorded at 150 to 174 miles per hour before the tornado ripped the instruments from the vehicle. If confirmed, this would give the tornado an EF-4 rating.
As of midday Tuesday, the National Weather Service was conducting damage surveys across parts of the area. No official tornado intensity rating or path information has been released.
"I've never seen footage from inside a tornado of this magnitude," AccuWeather.com Meteorologist Jesse Ferrell said.
"This should fulfill Sean's dream. Even with the TIV, he's lucky to have survived to tell the story."

Disclaimer: Do not attempt. Storm chasing is extremely dangerous and can result in severe injury or death. The TIV2 was designed to withstand a tornado's winds; a normal vehicle would have been destroyed.
 

Amir Mohsen

متخصص بخش هواشناسی
[h=2]Severe Storms From New York City to Boston
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[h=6]By Anthony Sagliani, Meteorologist [h=5]May 29, 2013; 5:06 AM
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A look at breaking weather stories across the nation.
A warm front lifting northward across the Northeast on Wednesday will act as a gateway to warm and humid weather, but not before a few rounds of powerful thunderstorms roll through the region.
The worst of the weather will be found in places such as Buffalo, Rochester, Syracuse, Albany, Scranton, Allentown, New York City, Hartford, Providence, Worcester and Boston, to name a few.
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RELATED:
Plains Severe Weather Outbreak Includes Tornadoes Wednesday, Thursday
Central Plains Flash Flood Risk Continues
Severe Weather Center

Hail as large as quarters or even golf balls and damaging thunderstorm wind gusts to 60 or 70 mph are the biggest threats, but an isolated tornado is not out of the question.
Hail the size of quarters can cause minor damage to vehicles and it could cause injury to exposed people or animals. Golf ball-sized hail is capable of more significant damage. It can crack windshields, dent vehicles, damage crops or gardens and cause severe injury to people or animals caught outside.
Wind gusts of 60 to 70 mph can snap off large tree branches, uproot trees and blow down power poles. Spotty power outages are also possible.
As warm southerly winds push into stubborn northeasterly winds lingering across parts of New York state and New england, a twisting motion of the lower atmosphere will exist, leading to the potential for isolated tornadoes.
Though tornadoes are fairly rare in the Northeast, this is not expected to be a major tornado outbreak by any stretch of the imagination. Especially compared to the central Plains.
If you will be out and about this afternoon and evening, keep an eye to the sky, keep an eye on radar on your smart phone and pay attention to weather bulletins.
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Once thunderstorms develop, they will strengthen quickly, and severe weather could follow soon after.
Be sure to understand the difference between a watch and a warning. A watch means that an area is being monitored for dangerous weather. A warning means that dangerous weather is imminent.
Keep in mind that lightning is one of Mother Nature's most dangerous killers. If you can hear thunder, you are close enough to the storm to be struck by lightning, even if the sun is still shining.
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mohamad$

کاربر ويژه
آمار جوي دیروز دريافتي از ايستگاه هاي همديدي استان تهران
ارتفاعنام شهر و مشخصات ايستگاه دماي هوا بارشرطوبت
mICAOWMOStationMAXMINMEANmmMAXMIN
1548.2TETG40751اقدسيه31.216.82403213
1418.6TETO99331ژئوفيزيك3119.425.20329
1305.2TETC99320چيتگر---0--
1209.2OIID40753دوشان تپه31.6--0.6--
1190.8OIII40754فرودگاه مهر آباد33.21825.60568
990.2OIIE40777فرودگاه بين المللي امام3416.825.40567
2465.2TETB40755آبعلي219151.2--
2051TETD99369دماوند25.21419.604418
1975.6TETF40756فيروزكوه269.417.707813
2985.6TETL99370امين آباد فيروزكوه15.310.212.70.64125
1863TETA99366لواسان26.715.120.90.13914
1169TETS99375شهريار31.714.4230.015124
973TETV99406ورامين35.51525.204510




دیروز فرارفت گرمای شدیدی رو شاهد بودیم . دمای فعلی فرودگاه مهراباد +29 که نسبت مدت مشابه دیروز 3 درجه خنکتر شده
 

aria_tehran

کاربر ويژه
سلام
قبلا فکر میکردم که نمیشه از همه جای توچال از پشت بوممون عکس گرفت ولی انقد اینور اونور پشت بوم رفتم و خودمو خم و راست کردم تا تونستم این عکسا رو یکشنبه بگیرم

قله توچال
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کلکچال
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توچال به سمت شرق
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سمت غرب قله
تو این عکس حتی تله کابین و اونایی که دارن میرن به سمت قله معلومن!
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سمت غرب شاهنشین

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شاهنشین به سمت شرق
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پوزش به خاطر کیفیت بد بعضی از عکسا
 
آخرین ویرایش:

mohamad$

کاربر ويژه
عکسای خوبی بود اریا . از الان کلید کن رو خانواده که برات دوربین بخرن . حیفه با این علاقه دوربین نداشته باشی . الان سایت ها رو نگاه کردم اکثرا تا عصر جمعه هوا افتابیه در ارتفاعات . بیشینه دمای هوا هم برای روز جمعه +5 در بالای توچال پیشبینی شده ( سایت اسنو فورکست ) هوای زمستانی
 

پسرخاله

کاربر ويژه
عکسای خوبی بود اریا . از الان کلید کن رو خانواده که برات دوربین بخرن . حیفه با این علاقه دوربین نداشته باشی . الان سایت ها رو نگاه کردم اکثرا تا عصر جمعه هوا افتابیه در ارتفاعات . بیشینه دمای هوا هم برای روز جمعه +5 در بالای توچال پیشبینی شده ( سایت اسنو فورکست ) هوای زمستانی
ایشالا عازمی جمعه؟:خنده1:
حیف که امتحان دارم وگرنا میومدم باهات منم :نیش:
 

پسرخاله

کاربر ويژه
امروزم قزوین بارش میگیره ابرهای همرفتی دارن شکل میگیرن:18:
اما باز شانسه تهران کمه:75:
 

پسرخاله

کاربر ويژه
منم زیاد نرفتم دفه 3 یا 4 ام میشه . راحت ترین زمانا اخرای مهر هست . چون هنوز برف چندانی نیومده و هوا هم دیگه گرمای تابستون و نداره .
من فکر نکنم بتونم یه دفعه تا قله برم.
الانم که دما خوبه مناسبه دیگه تا هوا بیاد گرم بشه میرسی بالا
جمعه ها زیاد هستن اونایی که تا قله برن؟
 

mohamad$

کاربر ويژه
برای صعود به قله دماوند از سمت جبهه جنوبی 2600 متر ارتفاع و باید طی کنیم ( 3000 تا 5600 ) و برای صعود قله توچال هم یه مقدار کمتر یعنی 2200 متر باید طی بشه ( مسیر دربند 1800 تا 4000 ) یعنی در واقع فقط 400 متر تفاوت بین صعود این دو قله فرق هست . در حالی که دماوند 1600 متر از توچال بلندتره
 

aria_tehran

کاربر ويژه
عکسای خوبی بود اریا . از الان کلید کن رو خانواده که برات دوربین بخرن . حیفه با این علاقه دوربین نداشته باشی . الان سایت ها رو نگاه کردم اکثرا تا عصر جمعه هوا افتابیه در ارتفاعات . بیشینه دمای هوا هم برای روز جمعه +5 در بالای توچال پیشبینی شده ( سایت اسنو فورکست ) هوای زمستانی

اتفاقا 20 روز پیش میخواستم دوربین بخرم دو تا مغازه ی سونی و سامسونگ بسته بودن تو آریا شهر به دلیل مسائل شهرداری!الان نمیدونم باز شدن یا نه
اگه بازم بسته بودن میرم حافظ تازه اونجا انواع مارکا رو داره
من از 6سال پیش این دوربینو دارم که اون موقع 240 هزار تومن پولشو دادم.(پولامو جمع کردم رفتم دوربین خریدم)
ولی چون افتاد لنزش شیکست دیگه کیفیت نداره عکسا و یه دوربین دیگه باید بخرم
 
با سلام....
کم فشاری که قرار بود در روزهای آینده در منطقه دریای عرب شکل بگیرد و سپس وارد منطقه ما شود متاستفانه در اپ های مختلف چندین مدل معتبر جهانی از بین رفته است...
ولی باز هم در روزهای آینده امکان تشکیل آن وجود دارد...
مدل ECMWF که اصلا اعتقادی به تشکیل این کم فشار ندارد...:

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mohamad$

کاربر ويژه
من فکر نکنم بتونم یه دفعه تا قله برم.الانم که دما خوبه مناسبه دیگه تا هوا بیاد گرم بشه میرسی بالا جمعه ها زیاد هستن اونایی که تا قله برن؟
اره همیشه زیادن . روزای تابستون هم خیلی زیادن رو قله . پسرا با دوس دخترشون میان تو تابستون خیلیا که کوهنورد هم نیستن با تله کابین تا بالا میرن و فقط 20 دقیقه راه میرن . شما هم اگه فقط میخوای قله شو ببینی با تله کابین برو 30 تومن از اونجا برو بالای کوه . سه سوت . پیاده هم اگه علاقه داشته باشی میتونی بری . خیلیا هم که همش تو کوه غر میزنن که ای کی میرسیم خسته شدیم به خاطر اینه که علاقه ندارن و به زور اومدن . کلا هر چیزی که ادم بهش علاقه داشته باشه بهش میرسه چیز دست نیافتنی وجود نداره .
 

aria_tehran

کاربر ويژه
دیروز بعد ازظهر:
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محله ما تگرگ آبکی و بارون خیلی خیلی درشت اومد و تا مدت ها هم زمینا خیس بودن
 

mohamad$

کاربر ويژه
اریا اون موق که من رقتم بگیرم دوربین کنون sx50 که کامپکت هست چیز خوبی بود . زومش خیلی زیاده با کیفیت خوب . قیمتش فکونم 1.5 میلیون بود . ولی اگه میخوای دوربین حرفه ای لنز خور ( SLR ) بگیری باید قیمت بیشتری بدی و البته دوربینای SLR کیفیتشون از کامپکت ها خیلی بهتره .
 
وضعیت
موضوع بسته شده است.
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