View allAll Photos Tagged convection
From our epic visit to the Meradalir eruption site, I only posted one image so far, so here is another one of this once-in-a-lifetime-experience. I guess I spent more time standing there with my jaw wide open than I spent taking images, but I did try a few different compositions. In this one, I zoomed into the eruption to really capture the bursting lava which was actually more challenging than I initially thought. Due to the already fading light I had to bump up my ISO and for quite some time I was wondering about the slight softness in my images until I realized that this is most likely caused by the convection of the extremely hot air around the lava. Nevertheless, I really like how this image turned out, even though no image can convey this feeling of witnessing such a thing with your own eyes, but I hope it somewhat comes close :) Hope you like it!
Un orage (dérivé à l'aide du suffixe age de l'ancien français ore, signifiant « vent »1) est une perturbation atmosphérique d'origine convective associée à un type de nuage particulier : le cumulonimbus. Ce dernier est à forte extension verticale, il engendre des pluies fortes à diluviennes, des décharges électriques de foudre accompagnées de tonnerre. Dans des cas extrêmes, l'orage peut produire des chutes de grêle, des vents très violents et, rarement, des tornades.
Les orages peuvent se produire en toute saison, tant que les conditions d'instabilité et d'humidité de l'air sont présentes. Le plus grand nombre se retrouve sous les tropiques et leur fréquence diminue en allant vers les pôles où ils ne se produisent qu'exceptionnellement. Dans les latitudes moyennes, le nombre varie avec la saison.
A thunderstorm, also known as an electrical storm, lightning storm, or thundershower, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder.[1] Thunderstorms occur in association with a type of cloud known as a cumulonimbus. They are usually accompanied by strong winds, heavy rain, and sometimes snow, sleet, hail, or, in contrast, no precipitation at all. Thunderstorms may line up in a series or become a rainband, known as a squall line. Strong or severe thunderstorms, known as supercells, rotate as do cyclones. While most thunderstorms move with the mean wind flow through the layer of the troposphere that they occupy, vertical wind shear sometimes causes a deviation in their course at a right angle to the wind shear direction.
雷暴是一種產生閃電及雷聲的自然天氣現象。它通常伴隨著滂沱大雨或冰雹，而在冬季時甚至會隨暴風雪而來。
雷暴可以在世界任何地方發生，甚至發生在兩極和沙漠地帶，但通常在低緯度的地方（特別是熱帶雨林地區）會較頻繁地發生，可以每日都會發生。在亞熱帶和溫帶等中緯度地區，雷暴則通常會在夏季的下午或傍晚發生，有時在冬季也會受冷鋒影響而有短時性雷暴。烏干達及印尼為全世界雷暴發生最頻繁的地方，除此之外，在美國中西部及南部州份會發生威力最強烈的雷暴，因為這些雷暴會與冰雹或龍捲風一起發生。至今為止，全世界從未出現過雷暴的地區只有南美洲智利北部的阿他加馬沙漠，該地因氣候過於乾燥和難以形成雨雲才會未出現過雷暴。
雷暴會在大氣不穩定時發生，並且會製造大量的雨水或冰晶。通常其發生有三種特定情況：地球大氣層低空帶的濕度很高，這可以由露點溫度觀察得到；高空與低空的溫度差異極大，亦即是氣溫遞減率極大；冷鋒受到外力的逼迫而匯聚。
在古老的文明裡，雷暴有著極大的影響力。不論是中國古代、古羅馬或美洲古文明皆有與雷暴相關的神話。source wikipédia
First supercell on Pentecost 09.06.2014 near Euskirchen/Bonn (North Rhine-Westphalia).
---
If You are interested in a digital copy or a poster of the photograph (or other photographs), please just drop me an Email on b.jordan@gmx.net
*****
Vorläufige Supercelle bei Euskirchen/Bonn (Nordrhein-Westfalen) am Pfingstmontag den 09.06.2014.
---
Wenn jemand Interesse an einem digitalen Abzug oder einem Poster von dem Foto hat (auch von anderen Fotos von mir), schreibt mir doch eine Email an b.jordan@gmx.net
*** Calendar 2016 - Order ready! ***
More info under: www.flickr.com/photos/borisss1982/21216336483
# head in the clouds variant in honor of an extraordinary person I was fortunate enough to recently meet 8^)
The average end to the annual southwest monsoon is 15 Sep and this evening's thunderstorms might be the last for the 2022 season. These isolated cells capture the setting sun's light perfectly.
Short version: It was intense !
Long version: Our afternoon weather radar showed a cold front coming in from the West and I thought it might produce some interesting weather. It did. Here's what Wiki has to say about squall lines:
"A squall line or quasi-linear convective system is a line of thunderstorms forming along or ahead of a cold front. In the early 20th century, the term was used as a synonym for cold front. It contains heavy precipitation, hail, frequent lightning, strong straight-line winds, and possibly tornadoes and waterspouts."
I didn't see a waterspout but I did learn that my trusty little X-E2 is quite watertight. : ))
Please view LARGE !
In the early morning hours an active MCS (Mesoscale Convective System) over the English Channel moved to the southern NorthSea. Near the Dutch coast it collapsed, but as a last sigh it pushed this shelfcloud over the western part of Holland.
I was almost too late because the shelfcloud was detached from the precipitation core and running a 10-20 km ahead of it....
Se potessi aprire le nuvole come si apre un cassetto, chissà cosa troverei dentro: lettere d’amore scritte dagli angeli o alfabeti segreti o forse i sogni del vento
Fabrizio Caramagna
Un cumulonembo temporalesco si veste degli ultimi raggi di sole prima di allontanarsi all'orizzonte verso est.
Foto dal mio album dei ricordi
#nuvola #cloud #temporale #storm #sunset #tramonto #rosa #pink #arancione #convection #convezione #padova
# For Daniela 8^)
# I RARELY MADE COPIES OF MAIL ART WORKS SENT OFF TO FELLOW CONSPIRATORS, BUT DID WITH THESE TWO FOR WHATEVER REASON [LOW-FI SCANS OF THE ORIGINALS]. MR. TRONA'S MISSPENT YOUTH. ;-}
# THESE WERE POSTED INDIVIDUALLY, BURIED IN MY STREAM, BUT ON A WHIM..... 8^)
A huge severe-warned cell shows off some explosive convection as it drifts along the Front Range west of Loveland, CO.
Image Notes: To get an idea of how large the storm is, consider that this image is a five-frame pano. Each frame was shot vertically with the Samyang 14 mm, itself an incredibly wide lens. I processed each frame in DXO, corrected distortion/vignetting with PTLens (DXO lacks a profile for the Samy) and merged the frames in Photoshop to construct the pano.
In the last days of the meteorological summer, showers and thunderstorms formed in a polar airmass. They looked more like autumn thunderstorms than the ones we saw earlier this summer.
Views were amazingly clear and transparent with beautiful convective structures. At sunset the anvil of such a storm was beautifully lit by the low sun.
You can also find me here / Il est aussi possible de me retrouver ici : Facebook Page
FR : Souvenir des premières sorties avec une dégradation orageuse et un Arcus à l'avant du front.
ENG : Memory of the first outings with a strom and a shelf cloud at the front.
Juin 2011 - Calvados / Normandie / France.
This event is rather unusual if not rare. The lower levels of the atmosphere is very cold and moist. Lots of virga (ice crystals) are falling out of these thin cloud masses. Had this occurred in summer, severe weather is most likely later in the day. On this day, scattered convective snow shower occurred shortly after this mid-morning capture.
An alternative cloud classification could be: Altocumulus Floccus Clouds With Virga but I believe these clouds were well below 6000 above ground level.
I upload a time lapse of this event: www.flickr.com/photos/79387036@N07/51753641288/in/photost....
Foudre à l'arrière d'une cellule particulièrement électrique qui aura causé plusieurs pannes de courant dans la région de Libramont - Lightning behind an thunderstorm particularly electric. This one produce several power outages around Libramont
A day of on/off rain surrounded by large convective cloud, this dropped a fair amount of rain over scunthorpe, the rain was just beginning to fall being illuminated by the sun to the west
Severe Thunderstorms over Owatonna, MN with cloud tops to 55,000 feet viewed from 45 miles north in Savage, MN.
Titanenwurz im Botanischen Garten in Bonn.
Die Titanenwurz Amorphophallus titanum ist eine auf Sumatra heimische Pflanzenart.
Die jungen Pflanzen leben im Unterwuchs der Regenwälder Sumatras und kommen in durch das Absterben von Urwaldriesen entstandenen Lücken zur Blüte. Jungpflanzen verharren jahrelang im Regenwaldschatten und beginnen mit hoher Geschwindigkeit bei entstandenen Lücken oder an ruderalen Stellen bei Lichteinfall zu wachsen und können ihr Knollengewicht innerhalb einer Vegetationsperiode verdreifachen. Um Insekten wie Aaskäfer der Gattung Diamesus und Kurzflügler der Gattung Creophilus aus großer Entfernung an die vereinzelt im Regenwald stehenden Blumen anzulocken, geben die Blütenstände einen für Menschen unangenehmen Aasgeruch ab. Die Blütenbiologie ist durch ihre Thermogenese und Rhythmik höchst bemerkenswert: Der Kolben des Blütenstands erwärmt sich in rhythmischen Intervallen auf über 36 °C und sendet über die entstehende Konvektionsströmung seinen Aasgeruch über weite Entfernungen, um Bestäuber anzulocken.
Der aktuelle Weltrekord einer Titanenwurz: Der wissenschaftlich dokumentierte Blütenstand erreichte am 21. Juni 2013 in den Botanischen Gärten Bonn eine Höhe von 320 cm.
Titan Arum in the Botanical Garden in Bonn.
The Titan Arum Amorphophallus titanum is a plant species native to Sumatra.
The young plants live in the undergrowth of Sumatra's rainforests and flower in gaps left by the death of giant trees in the jungle. Young plants remain in the shade of the rainforest for years and begin to grow rapidly in gaps that have arisen or in ruderal places when exposed to light and can triple their tuber weight within one growing season. In order to attract insects such as carrion beetles of the genus Diamesus and rove beetles of the genus Creophilus from a great distance to the isolated flowers in the rainforest, the inflorescences give off an unpleasant smell of carrion. The flower biology is highly remarkable due to its thermogenesis and rhythm: the piston of the inflorescence heats up at rhythmic intervals to over 36 °C and sends its carrion smell over long distances via the resulting convection current to attract pollinators.
The current world record for a titan arum: the scientifically documented inflorescence reached a height of 320 cm on June 21, 2013 in the Bonn Botanical Gardens.
Locally, it reached 100F today (95F) at my house. It was hot enough to spark some convective afternoon showers but rain fell mostly as virga.
These clouds at sunset were the remnants of the first summer-like day this year.
Picture of the Day
Nei cieli di maggio, spesso si sovrappongono nuvole meravigliose, come panna montata o schiuma da barba, che si ombreggiano vicendevolmente creando immagini suggestive
#clouds #nuvole #primavera #spring #maggio #may #cielo #sky #convection #convezione #zoom #padova
One of the many anvil crawlers we saw on the backside of a MCS (Mesoscale Convective System) over northeast Nebraska.
In the photograph you can also see a few upward strokes (GC, Ground-Cloud discharge), triggered by the many masts in the Norfolk, NE area.
Clouds forming in the convection over Sarasiota Bay - mid-day looking ENE.
Toyo 45G Fulinon A 240mm/9 Nikon Nikon R60 Red Filter 2.5 stops. Ilford FP4+ Ilfosol-3 standard development.
The final panoramic image of the thunderstorm over Morris, IL. This is stitched together by roughly 7-9 images, shot vertically to incorporate the entirety of the cloud structure. Within 5 or so minutes of these images the beautiful orange glow would be no more. In its wake was a soft pink on a deep navy blue, but by then the storm had expanded itself out so much that it was no longer impressive. I did capture some zooms of the moon surrounded by pink, but those images aren't good enough to post. I should have stuck it out to capture the storm in all it's pink glory, but without a tripod, the amount of light left wasn't the best for my little grab-n-go Canon SL1. It had also expanded far beyond what I could capture with the 18-135 STM lens.
Hot, humid, & stagnant daytime air was ripe to cause convective activity in the early evening, resulting in these three cells to pop alongside each other. They continued to grow until eventually and essentially blowing themselves apart. Looking east out over Plainfield, Channahon, and Morris, Illinois.
Slot Canyon Beyond Carey's Big Mud.
The Land is Tortured by beyond Triple Digits in The Summer Months where the wind is like being in a Convection Oven and freezing Temps at night during The Winter. The Carizzo Badlands is a place where the fossils of Marine Life as well as Land Animals long gone can be found as well as Petrified Wood.
Best to be hiked during the cooler winter months. Best traveled by high clearance 4Wd not the place to get stuck. Some of the Caves are also best avoided. There was a recent Tragic death in ArroyoTapiado.
Best to be in a group and to leave a note in your Car indicating which Cave your in it can save your Life out here.
This storm passed overhead just a few minutes earlier and was nothing but disorganized clouds with some virga falling. 15 minutes later, weather satellite revealed explosive convection with +1 inch hail and over 800 in-cloud lightning discharges (within a five minute period) just 20 miles to my east near Burns, Wyoming. Temperatures were in the low 90's with dew points in the mid 30's.
The anvil expanded overhead a few minutes after this image and the storm was no longer visible. see: www.flickr.com/photos/79387036@N07/52142553047/in/photost... for time lapse of this event.
You can also find me here / Il est aussi possible de me retrouver ici : Facebook Page
2016 - Calvados / Normandie / France.
Una bellissima nuvola convettiva si innalza al di sopra del monte Cesen, prealpi trevigiane.
Bellezze del tempo
Buona giornata
#cesen #monte #nuvola #cloud #convective #temporale #storm #thunder #mount
Looking south from the craggy intrusive step-toe Rocks of Sharon, thunderstorms roll over the wind-blown loess of the Palouse.
Another stormy night across the state of Minnesota this evening.
As the storms moved east and the skies started to clear to the west it brought some good photo opportunities.
A unicell moving off the coast of Kent into the North sea after a day of convection in the South East of England.
…………………………………………………………………………................
All images are copyright © John Finney Photography.
Don't use without permission.
Please contact me here before using any of my images for any reason. Thank you.
Quite a lot of convection yesterday afternoon, with rapidly changing cloud forms. I snapped this and the shot next door from a nicely elevated railway footbridge.
Super-Takumar 150mm f4
# aka "save me from myself again"
# it's been quite a while, but I process things differently, obsessively, et al., or so a few brilliant minds have informed me (& much more, of course), and I recognized and had already self-analyzed, reaching the same conclusions. Lyrics from Losing My Religion come to mind, the opening: "Oh, life is bigger, It's bigger than you, and you are not me, the lengths that I will go to." Emotional processing is obviously unique to each individual, an anguished sea of endless variations. I've sensed and directly experienced criticism of me and my emotions.... although I still have no idea what the point was. To offer hostility to the grief-stricken is callous, vapid, and utterly incompressible personally. Ok. I've encountered the feelings of people passing away, but this was/is unique. Despite the fact that I sought out objective assistance, I'll have a mere moment of memory, a small seemingly innocuous find, et al., and the day is utterly transformed. I don't know how, when, or if this changes... I thought to try Flickr for catharsis of a sort. So, thank you. Prost.
"più guardi le nuvole, meno vuoi stare in terra.."
Norman Sgrò
Sopra l'Antelao, nell'ora più calda del giorno, nuvole grandiose fioriscono improvvise e ornano l'orizzonte con la loro maestosa potenza
#sassdistria #antelao #cadore #dolomites #cloud #nuvola #cielo #sky #rocce #rocks #convective #convettive #b&n #b&w
Right over my head earlier this summer...
Cumulus cloud
Small cumulus humilis clouds floating over cloud that can have noticeable vertical development and clearly defined edges.
Cumulo- means "heap" or "pile" in Latin. Cumulus clouds are often described as "puffy", "cotton-like" or "fluffy" in appearance, and have flat bases. Cumulus clouds, being low-level clouds, are generally less than 1,000 m (3,300 ft) in altitude unless they are the more vertical cumulus congestus form. Cumulus clouds may appear by themselves, in lines, or in clusters.
Cumulus clouds are often precursors of other types of cloud, such as cumulonimbus, when influenced by weather factors such as instability, moisture, and temperature gradient. Normally, cumulus clouds produce little or no precipitation, but they can grow into the precipitation-bearing congestus or cumulonimbus clouds. Cumulus clouds can be formed from water vapor, supercooled water droplets, or ice crystals, depending upon the ambient temperature. They come in many distinct subforms, and generally cool the earth by reflecting the incoming solar radiation. Cumulus clouds are part of the larger category of free-convective cumuliform clouds, which include cumulonimbus clouds. The latter genus-type is sometimes categorized separately as cumulonimbiform due to its more complex structure that often includes a cirriform or anvil top. There are also cumuliform clouds of limited convection that comprise stratocumulus (low-étage), altocumulus (middle-étage) and cirrocumulus. (high-étage). These last three genus-types are sometimes classified separately as stratocumuliform.
Formation
Cumulus clouds form via atmospheric convection as air warmed by the surface begins to rise. As the air rises, the temperature drops (following the lapse rate), causing the relative humidity (RH) to rise. If convection reaches a certain level the RH reaches one hundred percent, and the "wet-adiabatic" phase begins. At this point a positive feedback ensues: since the RH is above 100%, water vapour condenses, releasing latent heat, warming the air and spurring further convection.
In this phase, water vapor condenses on various nuclei present in the air, forming the cumulus cloud. This creates the characteristic flat-bottomed puffy shape associated with cumulus clouds. The size of the cloud depends on the temperature profile of the atmosphere and the presence of any inversions. During the convection, surrounding air is entrained (mixed) with the thermal and the total mass of the ascending air increases. Rain forms in a cumulus cloud via a process involving two non-discrete stages. The first stage occurs after the droplets coalesce onto the various nuclei. Langmuir writes that surface tension in the water droplets provides a slightly higher pressure on the droplet, raising the vapor pressure by a small amount. The increased pressure results in those droplets evaporating and the resulting water vapor condensing on the larger droplets. Due to the extremely small size of the evaporating water droplets, this process becomes largely meaningless after the larger droplets have grown to around 20 to 30 micrometres, and the second stage takes over. In the accretion phase, the raindrop begins to fall, and other droplets collide and combine with it to increase the size of the raindrop. Langmuir was able to develop a formula which predicted that the droplet radius would grow unboundedly within a discrete time period.
For further information please visit en.wikipedia.org/wiki/Cumulus_cloud
Changeable weather on the Snowdon Horseshoe. It was a truly memorable day for me on this return visit to one of Snowdonia's finest routes. The day began cloudless, but as the morning developed convention cloud came swirling in a spectacular way, and an earlier image was an attmept to capture that. The summit of Snowdon (Yr Wyddfa) unsurprisingly caught the cloud the most, and it really was thick up there, visibility down to a few yards. This shot is looking back towards the summit from the final rise in the horseshoe, the twin summit of Lliwedd which has the most vertiginous cliff-face. In the centre of the image you can make out the loose and scrabbly mess that is the Watkin Path, disappearing into the cloud.
It's been mighty cold outdoors lately and I've grown far too pale & sluggish within the grasps of my warm computer pit. Wouldn't mind some convectively friendly weather at this point to draw me squintingly outdoors. I don't roam for January tornadoes like the native midwesterners, so that season feels a touch shorter. This day put a star on October back in 2018. Near Meteor Crater.
Poco prima del tramonto, in una giornata molto movimentata dal punto di vista atmosferico, ecco apparire alcuni pinnacoli convettivi, in una luce particolare, e con l'ombra di altre nuvole proiettata contro di loro
Padova, alcuni giorni fa
#nuvole #clouds #convection #pillars #colonne #convezione #storm #temporale #sunset #tramonto #ombre #shadow #padova #spring #primavera
Showers produce their precipitation via convection. A cumulus or cumulonimbus cloud will begin life as a 'bubble' of buoyant air that rises upwards in the atmosphere. The bubble of air will cool as it gains height and this will lead to the formation of the cumulus cloud with its distinctive cauliflower-like top.