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مباحث عمومی هواشناسی

وضعیت
موضوع بسته شده است.

saeed hh

کاربر ويژه
من که دارم ولی گور باباش باکی ازش ندارم
همه دوستام که درس و ول کردن الان زن دارن یا در آستانه زن گرفتن - همین لیسانسو گرفتم که نگن یارو بی سواده:خجالت2:

منم همین جوری میرم دانشگاه ولی نمیدونم چرا نمرهام از همه بیشتر میشه شاید واسه اینکه استرس ندارم:خنده2:(فقط شب امتحان تا صبح میخونم جزوها هم اخر ترم کپی میکنم)
زن چیه بابا تواین گرونی :تعجب2:فقط عشق و حال گوربابای زن :خنده2:
 

کدخدا

کاربر ويژه
فروش کنسرو هوای تازه در چین! (+عکس)
وی در مصاحبه با یک روزنامه گفته است؛ هوایی که ما تنفس می‌کنیم سرشار از دود اگزوز اتومبیل‌ها است اما ما تلاش می‌کنیم هوای بدون آلودگی و تمیز به مردم عرضه کنیم.
فارس: یک تاجر ثروتمند چینی به علت آلودگی شهرهای بزرگ این کشور اقدام به تولید و فروش هوای تازه کنسرو شده در شهرهای آلوده کرده است.
به گزارش هافینگتون پست، یک تاجر چینی تلاش می‌کند از آلوده شدن هوای شهرهای بزرگ این کشور با فروش هوای تازه کنسرو شده کسب درآمد کند.

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براساس گزارش روزنامه «سیدنی مورنینگ هرالد» چاپ استرالیا که این هفته منتشر شد؛ «چن گوانگ بیائو» که یکی از افراد ثروتمند چین است فروش هوای تازه بسته بندی شده در قوطی‌های نوشابه را به قیمت هر بطری 5 یوآن(حدود یک دلار) آغاز کرده است.

این هوای تازه با عطرهای خوشبو همانند عطر «پریستین تبت» و سایر عطرهای معروف چین ترکیب شده است.

وی در مصاحبه با یک روزنامه گفته است؛ هوایی که ما تنفس می‌کنیم سرشار از دود اگزوز اتومبیل‌ها است اما ما تلاش می‌کنیم هوای بدون آلودگی و تمیز به مردم عرضه کنیم.

چن همچنین به روزنامه سیدنی مورنینگ هرالد گفت: هوای چین آنقدر آلوده است که ایده بسته بندی کردن هوای تمیز و تازه هم مشکل گشا نیست.

هوای شهرهای صنعتی چین طی هفته‌های اخیر همواره در سطح خطرناک بوده است. این مساله باعث شده است که کارخانه ها و تولیدی ها در شهرهای صنعتی در مواقعی تعطیل شوند.

http://www.asriran.com/fa/news/254968/فروش-کنسرو-هوای-تازه-در-چین-عکس
 

Dr.ben

کاربر ويژه
در آپدیت امروز واسه ماه آینده میلادی واسه سواحل غربی کاسپین بارش بیشتر از نرمال و دمای پایین تر از نرمال پیش بینی شده:

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Amir Mohsen

متخصص بخش هواشناسی
Exhibition Turns Climate Data into Artistic Experience
  • Published: February 5th, 2013
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By Michael D. Lemonick
Follow @MLemonick
The Compton-Goethals Art Gallery at The City College of New York is ordinarily devoted to the kind of exhibitions you might expect — photography shows, or displays of painting, or sculpture, or even something more contemporary, like a video installation.
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But it’s clear from you moment you walk into the gallery that the show on display through February 14 is something very different. The ice-climbing outfit hanging from the wall in one corner is probably the first clue, but then you notice a series of sciency-looking informational graphics on the far side of the room — and then a counter with headphones dangling from the ceiling off to the right. It’s true that one wall is covered with abstract-looking, large-format photographs, but on balance, it’s not entirely clear whether you’ve entered an art gallery or a science museum.
In fact, it’s a little of both. The title of the show — “Communicating Polar Climate Change Through Data Visualization And Sonification” — is admittedly a bit clunky, but the intent is elegant and the execution impressive. “We scientists don’t always communicate our work to the public very well,” said Marco Tedesco, a professor of earth and atmospheric sciences at City College, showing a visitor around a few days before the exhibition’s formal opening.
So Tedesco, a lifelong art aficionado, took advantage of a CCNY fund designed to foster interdisciplinary collaboration, reached out to colleagues in the college’s art and music departments, and spearheaded the development of a multimedia show that would try to reach the public in an unconventional way.
The focus is Greenland, Tedesco’s scientific specialty. That vast, frozen island holds enough ice to raise sea level by 20 feet if it were all to melt or slide into the sea. That won’t happen anytime soon, but there’s been enough melting in recent years — especially last summer — to make experts like Tedesco worry about how much Greenland’s ice will add to seas already rising due to climate change.
These aerial images of the Greenland ice sheet, taken by Professor Marco Tedesco during his field research over the past several summers, convey the complexity and beauty of the ice, which is under assault by rising temperatures associated with human emissions of heat-trapping greenhouse gases.

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Scientific explanations of why this is happening and what it means can often be dry and difficult to follow. The show itself, however, is anything but. Tedesco himself provided gorgeous, large-format photographs of the ice sheet as seen from helicopters — landscapes that show the almost infinitely varying texture, color and form of the ice, crisscrossed with cracks, and marked by patches of the black substance known as cryoconite, a mixture of soot, dust (some of it from meteorites), and bacteria. He also provided a video showing a huge lake of meltwater that formed atop the ice cap, then drained catastrophically when a crevasse opened. He even donated some of his ice-climbing gear, which hangs from the ceiling.
Those are the conventional parts of the show. It gets unconventional when you turn, for example, to a series of graphics that explain how the melting of Greenland is an increasingly important factor in sea level rise; how the movement of glaciers — not just the melting — helps send ice into the sea; and how the reflectivity of the ice affects its melt rate. The graphics, designed by CCNY student Vladimir Golosiy, rely not just on charts and diagrams, but on the vivid, creative use of typography.
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One of the several informational graphics featured at the exhibit.
Click to enlarge the image. Credit: Vladimir Golosiy.
“It’s all about the Vitesse,” said Ina Saltz, director of the college’s Electronic Design & Multimedia Department and one of Tedesco’s collaborators, during a tour of the show, speaking about the unusually versatile typeface its designers call “Engineered for responsive handling and a sporty ride . . . confident and stylish in any situation.”
The concept of albedo — the relative brightness or darkness of ice — is also demonstrated vividly in a series of videos in which slabs of ice are artificially darkened and put under heat lamps next to untreated ice. Any physicist can tell you the darker ice will melt faster, as will Greenland’s natural ice when, say, pollution in the form of soot falls on it. But the videos are far more striking than any verbal explanations.
That’s not all: there’s also an interactive video game, in which players can vary the thickness of clouds to change the reflectivity of the atmosphere and see what that does to the ice below, and a series of “sonifications” created by CCNY’s Jonathan Perl, an associate professor of music and audio technology.
These are transformations of hard scientific data about ice thickness, albedo and other factors into rich tapestries of sound that convey the changes to Greenland’s ice over recent decades. “This could be especially valuable for the visually impaired,” Tedesco said.
What you won’t see a whole lot of in this show is words, aside from some brief explanations of the science. But that’s the whole point. Scientists (and journalists) have poured out millions of words trying to convey the threat of climate change to the general public. It’s time to give artists a chance.

 

Amir Mohsen

متخصص بخش هواشناسی
امسال شمال شرق آمریکا هم تا حالا خیلی گرمتر از نرمال بوده و اونها هم مثل ما یاد و خاطرات برف و سرماهای سال اخیر رو گرامی میدارن.

مثلا طوفان برف شمال شرق آمریکا در روزهای 4 تا 6 فوریه سال 2010:



'Snowmaggedon' or 'Snowpocalypse' Times Two in February


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By Meghan Evans, Meteorologist

February 05, 2013; 11:54 AM


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The two massive snowstorms that struck the Northeast in one week of February 2010 seem like a distant memory.
The first of the two storms hit the Ohio Valley into the mid-Atlantic from Feb. 4-6, 2010. A couple of feet of snow and more fell across southern Pennsylvania, Maryland and northern Virginia.
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High winds whipped the snow around, causing massive blowing and drifting and leading to blizzard conditions.
Philadelphia was clobbered by 28.5 inches of snow. Washington, D.C., received 17.8 inches of snow, making travel a nightmare and stranding many motorists along the beltway.
Thousands of airline travelers were also stranded in airports along the storm's path.
The severity of the February snowstorm was expressed by President Obama when he referred to it as "Snowmaggedon." AccuWeather.com dubbed the storm "Snowpocalypse."
RELATED:
Pictures From 'Snowmaggedon' in February 2010
The "Snowmageddon" Winter Wasn't As Cold as You Remember

Only two days passed with dry weather and highs at or just above freezing before yet another snowstorm arrived Feb. 9-10.
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Photo from Bromall, Pa., submitted by user vbabyvetter on the AccuWeather.com Photo Gallery on Feb. 6, 2010.
A total of 15.8 inches of snow piled up in Philadelphia. February 2010 ended up with nearly six times the normal monthly snowfall.
Washington, D.C., received 10.8 inches of snow from the second storm. The total snowfall for February 2010 added up to 32.1 inches, nearly seven times the normal monthly snowfall.
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The winter of 2010 went down in the record books as the snowiest on record for some of the major cities of the Northeast, including Philadelphia and Washington, D.C.
Some AccuWeather.com ******** fans reminisced about how much snow fell in February of 2010, wishing that there was more snow this winter.
"Yeah, here in Pickens, WV we had 4' or more of snow in Feb. 2010. We haven't had much snow this winter. The most we have had is 18" at one time. I like the bigger snows. That is the way winter is supposed to be," said AccuWeather.com ******** fan Velda B.
"*sigh* The good old days," said AccuWeather.com ******** fan Ramona X when remembering the snow of February 2010.
 
آخرین ویرایش:

Dr.ben

کاربر ويژه
مسابقات بین المللی پرش اسکی در شهر سوچی روسیه




زمین های گل لاله در هلند





توفان و رعد بر فراز مزرعه در طبیعت بلک‌استون. (رکس)

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تماشای رودخانه یخ‌بسته؛ روسیه. (رویترز)

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pokerface

متخصص هواشناسی
مسابقات پیش بینی هوا،بسیار هیجان انگیز،کاش در ایران هم بود

The WxChallenge [h=3]WxChallenge Overview
The WxChallenge is a collegiate focused meteorological forecast competition. It is a non-profit entity, whose income is used to maintain necessary infrastructure, promote the competition to students and faculty, and provide non-cash awards for excellence in forecasting. Forecasters from higher education institutions from across the United States and Canada predict the high and low temperature, maximum sustained wind speed, and total precipitation from select locations across the United States. The competition runs for 10 weeks in the Fall semester and 10 weeks in the Spring semester. During this time, there are a total of 10 locations in which forecasts are made. There is an additional three week tournament following the end of the Spring semester for the top 64 overall best forecasters.​
Scoring of forecasts is done by assessing error points based on the degree of accuracy between the forecasts and the verified meteorological measurements. For each forecast city, trophies are awarded to the winner and runner-up in each of the four categories: Freshman/Sophomore student, Junior/Senior student, MS/PhD student, and Faculty/Staff.​
The competition is completely online and web based. The servers running the contest are based at the National Weather Center on the campus of the University of Oklahoma. Day-to-day management, public relations, and program and webpage coding are done by the WxChallenge Manager (Brad Illston). The WxChallenge is a project developed at the Univ. of Oklahoma to bring a state-of-the-art, fun, and exciting forecasting contest to students in colleges and universities across the country. It was started in 2006 and has been active ever since. Some of the key features of the contest include:​

  • [*=left]Complete web-based forecast entry.
    [*=left]Per semester or full year enrollment options.
    [*=left]Specific class breakdowns for professors to track their students separate from the rest of the University.
    [*=left]Up-to-the-hour live scoring.
    [*=left]Public data files of all forecasts immediately following the close of forecasts each day.
    [*=left]Online forums for each school to privately discuss forecasts and other pertinent information.
    [*=left]Hypothetical verification tools to generate hypothetical scores and standings.
    [*=left]...much, much more.
 

pokerface

متخصص هواشناسی
Here’s the challenge: forecast the maximum and minimum temperatures, precipitation, and maximum wind speeds for select U.S. cities. Over a ten-week period (each semester), you'll compete against top student and faculty meteorologists for honors as the top weather forecaster in North America.

http://www.wxchallenge.com/index.php
 

سیبری

کاربر ويژه


سلام محسن عزیز

خوب هستید؟:گل:

والا تو نقشه ها دارم پر فشار سیبری رو می بینم که داره برای نفوذ به شمال شرق ایران لحظه شماری میکنه.:فرار:

ظاهرا ایشون هم دلشون واسه شما خیلی تنگ شده:83::داغ::دست::36::137:

سلام امیر جان
خوبم عزیز دل :گل:
البته نه به خوبی شبایی که قوچان 25- بود:خنده2:
جدی پرفشار سیبری میخواد نفوذکنه؟ واسه کی امیر جان؟
 

pokerface

متخصص هواشناسی
[h=3]Penn State meteorology team wins national forecasting competitionTuesday, April 17, 2012
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Meteorology students from the Penn State team that captured the 2012 North American collegiate weather forecasting competition.

A group of 15 Penn State meteorology students recently captured first place in the Weather Challenge, a North American collegiate weather forecasting competition.

During the 20-week forecasting contest, which spanned both fall and spring semesters, students predicted high and low temperatures, precipitation and wind speeds at 10 different cities. Some of this year's forecast locations included Juneau, Alaska; Hilo, Hawaii; New Orleans, La; and Erie, Pa.

Penn State's forecasters bested teams from more than 50 other universities. Graduate student Josh Boden, who served as instructor for the group, was the top graduate student forecaster in the nation. Senior Erin Rohland finished first nationally among juniors and seniors, while sophomore Andrew Barney captured the top spot nationally among all freshmen and sophomore forecasters.

The top five Penn State forecasters were Boden, Rohland, seniors Ryan Kramer and Nicholas Gliozzi, and junior Matt Mehallow. Their names will be engraved on the Weather Challenge trophy which will reside at Penn State during the 2012-13 academic year
 

Amir Mohsen

متخصص بخش هواشناسی
سلام امیر جان
خوبم عزیز دل :گل:
البته نه به خوبی شبایی که قوچان 25- بود:خنده2:
جدی پرفشار سیبری میخواد نفوذکنه؟ واسه کی امیر جان؟

محسن جان

عرض کنم خدمت تون که از اواسط هفته آینده اولش نفوذ یک کم فشار سودانی رو به سطح کشور داریم بعد با نفوذ پر فشار به نیمه شمالی کشور بارشهای خوبی در نواحی شمالی و شمال شرق کشور رخ میده و سردترین دما های کمینه هم از پنجشنبه و جمعه هفته آینده در ایستگاههای نواحی شمالی کشور از غرب دریا و استان اردبیل شروع به ثبت شدن میکنه و به منطقه ما هم میرسه که دامنه استقرار این هوای سرد در منطقه ما هم از لحاظ شدت و هم از لحاظ استمرار محسوس تر خواهد بود.
 

Amir Mohsen

متخصص بخش هواشناسی


محسن جان

عرض کنم خدمت تون که از اواسط هفته آینده اولش نفوذ یک کم فشار سودانی رو به سطح کشور داریم بعد با نفوذ پر فشار به نیمه شمالی کشور بارشهای خوبی در نواحی شمالی و شمال شرق کشور رخ میده و سردترین دما های کمینه هم از پنجشنبه و جمعه هفته آینده در ایستگاههای نواحی شمالی کشور از غرب دریا و استان اردبیل شروع به ثبت شدن میکنه و به منطقه ما هم میرسه که دامنه استقرار این هوای سرد در منطقه ما هم از لحاظ شدت و هم از لحاظ استمرار محسوس تر خواهد بود.


برای بهتر روشن شدن موضوع این نقشه رو در بازهای زمانی امشب- 72 ساعت آینده و 192 ساعت آینده ببین:


[h=2]EFS 500 HPa Single Contour Probability displays
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Amir Mohsen

متخصص بخش هواشناسی
اینهم پنجشنبه هفته آینده:

پشته بر روی اروپای مرکزی و ناوه با عمق زیاد بر روی کشور ما و خاورمیانه
:گل:

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وضعیت
موضوع بسته شده است.
بالا