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aries1988 : weather   24

来自上海的同学 ... - 惠明的广播 - 豆瓣
shanghai  fun  beijing  weather  anecdote  meteo 
10 weeks ago by aries1988
Two Days of Weather Predicted in Just 20 Minutes in SC18 Demo | NVIDIA Blog
Behind the scenes, the GPU-accelerated COSMO model was running on a domain from the Swiss Federal Office of Meteorology and Climatology, known as MeteoSwiss, with enormous computing requirements. A 24-hour forecast created using the COSMO-1 model requires more than 4 quadrillion computing operations. COSMO-1 forecasts are initiated eight times a day, every three hours.

The demo’s visualization is further supported by using ParaView, an open-source visualization tool recently enhanced with ray-tracing capabilities using NVIDIA OptiX to take advantage of the latest NVIDIA Turing GPUs, including the Quadro RTX 6000.
gpu  meteo  weather  tesla 
december 2018 by aries1988
Kuroshio — Wikipédia
Le courant de Kuroshio, en japonais kuroshio (黒潮?, « courant noir »), anciennement orthographié kuroshiwo, est le second plus grand courant marin au monde, après le Gulf Stream. Il débute dans l'ouest de l'océan Pacifique au large de la côte orientale de Taïwan et se dirige vers les eaux au nord-est du Japon où il fusionne avec la dérive orientale du courant du Pacifique nord. Il a un rôle analogue à celui du Gulf Stream dans l'océan Atlantique, transportant des eaux chaudes tropicales vers le Nord et les régions polaires.
geography  comparison  ocean  weather 
march 2017 by aries1988
What It's Like to Fly Into a Thunderstorm
WMI planes are equipped with silver iodide burners on both wings, each capable of running for about two to two and a half hours. Silver iodide flares sit in racks under the wings. Upon release, they last anywhere from around 30 seconds to two minutes and deliver a concentrated dose to the would-be ice particles. When suppressing hail, the goal for pilots is to release the silver iodide directly into the storm’s updraft, which is the vertically-oriented region of warm moist air rising up off the ground that fuels thunderstorms. Hail forms when cloud droplets get shot up the updraft of a storm into the taller parts of the cloud and freeze. The stronger the updraft, the longer the hailstone can stay suspended in the storm, the more liquid water it can freeze onto its surface, the bigger the hailstone can become.
weather  engineering  plane  agriculture  usa 
november 2015 by aries1988
The climate scientist who predicted Hurricane Katrina explains why future storms will be worse - Quartz
An obvious point is that slowly rising sea levels increase the probability of storm-induced surges even when the statistics of the storms, such as top wind speed, themselves remain stable. Storm surges are physically the same thing as tsunamis but driven by wind and atmospheric pressure rather than the shaking seafloor, and they typically arrive near the peak of the storm’s fury.

Hurricanes are giant heat engines driven by the thermodynamic disequilibrium between the tropical oceans and atmosphere. This disequilibrium drives a strong flow of heat from the ocean to the atmosphere and is a direct consequence of the greenhouse effect: the tropical atmosphere is so opaque to infrared radiation that the sea surface cannot cool very much by directly radiating heat to space. Instead, it cools mostly by the evaporation of water, the same mechanism by which our sweaty bodies cool on a hot day.
climate  weather  prediction  future 
august 2015 by aries1988
National Weather Service announces a ten-fold boost in supercomputer power.
The ECMWF famously out-forecast the National Weather Service in the days leading up to Hurricane Sandy’s 2012 landfall in New Jersey—with the American forecasts showing the storm going safely out to sea for several days. More than half of the $44.5 million the new system costs comes via congressional appropriations in the wake of Hurricane Sandy.

The upgrade would have come sooner, but last year IBM sold its supercomputing division to Lenovo, a Chinese company. “That froze us,” National Weather Service Director Louis Uccellini recently told Mashable. Having its supercomputers made by a Chinese company raised “red flags” in Congress, so a new deal had to be assembled from scratch.
supercomputer  weather  usa 
january 2015 by aries1988
Searching for the Best Weather App Among Weather Underground, Weatherbug and More
The technology for weather apps for iPhones and Android phones is evolving quickly. But not all apps are created equal.
iOS  weather  comparison  list 
january 2015 by aries1988
Searching for the Best Weather App Among Weather Underground, Weatherbug and More
The technology for weather apps for iPhones and Android phones is evolving quickly. But not all apps are created equal.
app  weather  life  tool 
december 2014 by aries1988
Été indien — Wikipédia
L’été indien ou l’été des Indiens (expression d’origine américaine, en France on parle également d’été de Vireux ou d’été de la Saint-Martin) est une période de temps ensoleillé et radouci, après les premières gelées de l’automne et juste avant l’hiver. Elle se produit en octobre ou au début de novembre dans l’hémisphère nord, et en avril ou au début mai dans l’hémisphère sud. Elle est aléatoire et peut durer de quelques jours à plus d’une semaine, ou ne pas se produire du tout certaines années.
weather  name  autumn 
november 2014 by aries1988
On a Warmer Planet, Which Cities Will Be Safest? -
“The answer is the Pacific Northwest, and probably especially west of the Cascades,” said Ben Strauss, vice president for climate impacts and director of the program on sea level rise at Climate Central, a research collaboration of scientists and journalists. “Actually, the strip of coastal land running from Canada down to the Bay Area is probably the best,” he added. “You see a lot less extreme heat; it’s the one place in the West where there’s no real expectation of major water stress, and while sea level will rise there as everywhere, the land rises steeply out of the ocean, so it’s a relatively small factor.”

A report by United Van Lines looking at relocation trends in 2013 found that its customers were moving primarily for economic reasons — a new job, lower costs of living — or quality-of-life considerations that were not climate related, such as public transit or green space. Coincidentally, Oregon — a predicted climate-change winner — topped the list of inbound moves, followed by South Carolina, North Carolina, the District of Columbia and South Dakota. The top states for outbound moves were New Jersey, Illinois, New York, West Virginia and Connecticut.

“What we see is that people are actually moving into harm’s way,” said Thomas C. Peterson, principal scientist for the National Oceanic and Atmospheric Administration’s National Climatic Data Center. “They’re moving from relatively safe places in the Midwest to places along the Florida coast, where the risk has been increasing.”

“Summer in Minnesota is projected to be like the climate is in northern Oklahoma — the trees and the forests there, the crops that farmers plant,” said Dr. Peterson of NOAA, citing the 2009 National Climate Assessment. “You build houses differently in Minnesota versus Oklahoma, you lay railroad tracks differently.”
usa  future  weather  challenge  people  life  city 
september 2014 by aries1988
A freight adventure: Sailing the oceans on a container ship -
Many cargo ships have a couple of spare cabins which they will sell to paying passengers. Possible routes range from a few days across the Mediterranean to epic world voyages. French shipping line CMA CGM offers a trip from Tilbury, Essex, to New Zealand and back for €10,000 with only one condition: an upper age limit of 80. It takes three months and a certain sort of traveller. Luxury aircraft, trains and yachts have their pleasures but my favourite transport is a mighty freighter loaded with steel boxes. I loved all 125,000 tonnes of mine. She showed me another world.

Thailand for the girls, in the old days, the sea dogs laughed. (The old days were those before containerisation, when it took days to unload and days to load, and you were young and cash-rich, alcohol was permitted aboard, and you could bring “guests” up the gangway.)

we remembered ourselves, and our wives and girlfriends, and spoke about food and the best places to live, popular topics with sailors. Everyone put New Zealand in the top three.

When the Gerd Maersk curved back out of the harbour, stretched to her full capacity and heeling over, we were so heavy it took us 20 minutes to heel back.

I solicited sea stories and wrote and read and dived into deep sleeps, rocked by the great ship, lulled by her diesel heartbeat.

After reeling, sleepless nights we plunged through the bruised colours and violent swells of typhoon days.
CMA-CGM  ocean  story  world  weather  ship  travel 
january 2014 by aries1988
Hyperwall Item 30017 - GEOS-5 Nature Run Collection
Really cool NASA videos here! Impressive simulation of global weather systems
video  earth  simulation  weather 
november 2013 by aries1988

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