Snow

Frontal snowsquall moving toward Boston, Massachusetts

Cold northwesterly wind over Lake Superior and Lake Michigan creating lake-effect snowfall

An early classification of snowflakes by Israel Perkins Warren

An animation of seasonal snow changes, based on satellite imagery

New York City during a 2016 blizzard, which
produced local wind gusts up to 42 mph and dropped 27.5 in of snow, breaking the city's one-day snowfall record.

Fresh snow beginning to metamorphose: The surface shows wind packing and sastrugi. In the foreground are hoar frost crystals, formed by refrozen water vapor emerging to the cold surface.

Snow drifts forming around downwind obstructions

Snowmelt-induced flooding of the Red River of the North in 1997

Snow pit on the surface of a glacier, profiling snow properties where the snow becomes increasingly dense with depth as it metamorphoses towards ice

Snowfall and snowmelt are parts of the Earth's water cycle.

Traffic stranded in a 2011 Chicago snowstorm.

Winter conditions on Ontario Highway 401 in Toronto due to a snowsquall.

Satellite view of the Indus River, showing snow in the Himalayas, which feeds it, and agricultural areas in Pakistan that draw on it for irrigation.

Extreme snow accumulation on building roofs

Icings resulting from meltwater at the bottom of the snow pack on the roof, flowing and refreezing at the eave as icicles and from leaking into the wall via an ice dam.

Algae, Chlamydomonas nivalis, that thrive in snow form red areas in the suncups on this snow surface

Arctic fox, a predator of smaller animals that live beneath the snow

Trucks plowing snow on a highway in Missouri

Airport snow-clearing operations include plowing and brushing

Bivouac of Napoleon's Grande Armée, during the winter retreat from Moscow

Finnish ski troops during the invasion of Finland by the Soviet Union

Army vehicles coping with snow during the Battle of the Bulge of World War II.

Norwegian military preparations during the 2009 Cold Response exercise

Navy SEALs training for winter warfare at Mammoth Mountain, California.

Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes.

- Snow

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Roller skiing

Marwe achieves flex by using a composite frame like a snow ski with aluminum forks bolted on.

Roller skiing is an off-snow equivalent to cross-country skiing.

Winter

Coldest season of the year in polar and temperate climates.

Animation of snow cover changing with the seasons

In the mid-latitudes and polar regions, winter is associated with snow and ice.

In the Southern Hemisphere winter extends from June to September, pictured in Caxias do Sul in the southern highlands of Brazil.

The snowshoe hare, and some other animals, change color in winter.

River Thames frost fair, 1683, with Old London Bridge in the background

People enjoying the winter weather outdoors in Helsinki, Finland

Allegory of Winter by Jerzy Siemiginowski-Eleuter with Aeolus' Kingdom of the Winds, 1683, Wilanów Palace

In many regions, winter brings snow and freezing temperatures.

Seed

Embryonic plant enclosed in a protective outer covering, along with a food reserve.

Plant ovules: Gymnosperm ovule on left, angiosperm ovule (inside ovary) on right

The inside of a Ginkgo seed, showing a well-developed embryo, nutritive tissue (megagametophyte), and a bit of the surrounding seed coat

The parts of an avocado seed (a dicot), showing the seed coat and embryo

Diagram of the internal structure of a dicot seed and embryo: (a) seed coat, (b) endosperm, (c) cotyledon, (d) hypocotyl

Diagram of a generalized dicot seed (1) versus a generalized monocot seed (2). A. Scutellum B. Cotyledon C. Hilum D. Plumule E. Radicle F. Endosperm

Comparison of monocotyledons and dicotyledons

A collection of various vegetable and herb seeds

Dandelion seeds are contained within achenes, which can be carried long distances by the wind.

The seed pod of milkweed (Asclepias syriaca)

Microbial transmission from seed to seedling

Phaseolus vulgaris (common bean or green bean) seeds are diverse in size, shape, and color.

Rain and melting snow naturally accomplish this task.

Queensland

State situated in northeastern Australia, and is the second-largest and third-most populous Australian state.

Captain James Cook claims the east coast of Australia for the Kingdom of Great Britain at Possession Island in 1770

Fighting between Burke and Wills's supply party and Indigenous Australians at Bulla in 1861

Parade of troops in Brisbane, prior to departure for the Boer War in South Africa.

Kanaka workers in a sugar cane plantation, late 19th century.

Returned World War II soldiers march in Queen Street, Brisbane, 1944

Commonly designated regions of Queensland, with Central Queensland divided into Mackay and Fitzroy subregions

The Great Barrier Reef, which extends along most of Queensland's Coral Sea coastline

The Mossman River, flowing through the Daintree Rainforest in Far North Queensland

The McPherson Range at Lamington National Park in South East Queensland

Brisbane, capital and most populous city of Queensland

The Great Court at the University of Queensland in Brisbane, Queensland's oldest university

Skyline of the Brisbane central business district. Brisbane is a global city and the state's largest economic hub.

Gold mine at Ravenswood in North Queensland. Mining is one of the state's major industries

The Gold Coast, Queensland's second-largest city and a major tourist destination

Noosa Heads on the Sunshine Coast, Queensland's third largest city and a major tourist destination

Parliament House, seat of the Queensland Parliament

Queen Elizabeth II Courts of Law, headquarters of the Supreme Court of Queensland and District Court of Queensland

"Ekka", the Royal Queensland Exhibition, is held each August at the Brisbane Showgrounds.

Cricket game at The Gabba, a 42,000-seat round stadium in Brisbane

Passenger train at Oxley railway station on the Ipswich/Rosweood line within the Queensland Rail City network

Cargo ships at the Port of Gladstone, Queensland's largest commodity seaport

Elevated areas in the south-eastern inland can experience temperatures well below freezing in mid-winter providing frost and, rarely, snowfall.

Khuzestan province

One of the 31 provinces of Iran.

Domes like this are quite common in Khuzestan province. The shape is an architectural trademark of craftsmen of the province. Daniel's shrine, located in Khuzestan, has such a shape. The shrine pictured here, belongs to Imamzadeh Hamzeh, located between Mahshahr and Hendijan.

The ziggurat of Choqa Zanbil in Khuzestan was a magnificent structure of the Elamite Empire. Khuzestan's Elamites were "precursors of the royal Persians", and were "the founders of the first Iranian empire in the geographic sense."

Masjed Jame' Dezful. In spite of devastating damage caused by Iraqi shelling in the Iran–Iraq War, Khuzestan still possesses a rich heritage of architecture from Islamic, Sassanid, and earlier times.

A bust from The National Museum of Iran of Queen Musa, wife of Phraates IV of Parthia, excavated by a French team in Khuzestan in 1939.

The government of Iran is spending large amounts of money in Khuzestan province. The massive Karun-3 dam, was inaugurated recently as part of a drive to boost Iran's growing energy demands.

Sketch of the Abadan island showing rivers and date palm plantations

The Parthian Prince, found in Khuzestan c. AD 100, is kept at The National Museum of Iran, Tehran.

Summertime temperatures routinely exceed 45 °C degrees Celsius almost daily and in the winter it can drop below freezing, with occasional snowfall, all the way south to Ahvaz.

Winter sports

United States biathlete Jeremy Teela at the 2002 Winter Olympics.

Ski jumping at Salpausselkä in Lahti, Finland in 2010

An East German bobsleigh in 1951, Oberhof track, Germany

A snowmobile tour at Yellowstone National Park.

Based on the number of participating athletes, bandy is the second most popular winter sport in the world for men

A postage stamp issued by East Germany in 1968 in commemoration of their first Winter Olympics as an independent country under a communist regime

Winter sports or winter activities are competitive sports or non-competitive recreational activities which are played on snow or ice.

Portishead, Somerset

Coastal town on the Severn Estuary, 8 miles to the west of Bristol, but within the unitary district of North Somerset, which falls within the ceremonial county of Somerset, England.

Artificial lake (right) and outdoor swimming pools (left) in the foreground, with Severn Estuary and Second Severn Crossing in background

Portishead Point Lighthouse also known as Battery Point lighthouse

One of the Wright StreetLite buses introduced in 2014 outside the Post Office

Arch by Rick Kirby, in the Ashlands development

Granite sculpture by Michael Dan Archer, at Port Marine, Portishead

About 8–15 days of snowfall is typical.

Molde

Town and municipality in Møre og Romsdal county, Norway.

Illustration of Molde, painting by Nico Wilhelm Jungmann, 1904

Molde's main street and commercial center. Molde Cathedral (orange roof on the far right) with its freestanding bell tower replaced the church that was destroyed during World War II

View of Molde from the Molde archipelago.

The seaward approach to Molde is dominated by the sixteen-storey Scandic Seilet Hotel.

Due to its geographic location, Molde experiences frequent snowfalls in winter, but this snow is usually wet as the winters tend to be mild.

Glacial landform

Glacial landforms are landforms created by the action of glaciers.

Antique postcard shows rocks scarred by glacial erosion

Yosemite Valley from an airplane, showing the "U" shape

Glacially plucked granitic bedrock near Mariehamn, Åland

Kamenitsa Peak erosion in Pirin mountain, Bulgaria

As the glaciers expand, due to their accumulating weight of snow and ice they crush and abrade and scour surfaces such as rocks and bedrock.

Kutaisi

One of the oldest continuously inhabited cities in the world and the third-most populous city in Georgia, traditionally, second in importance, after the capital city of Tbilisi.

Bagrati Cathedral, originally built in the Middle Ages and recently repaired from damages suffered through centuries

Gelati Monastery, a UNESCO World Heritage Site on the outskirts of Kutaisi

New Georgian Parliament Building in Kutaisi

The city often experiences heavy, wet snowfall (snowfall of 30 cm or more per single snowstorm is not uncommon) in the winter, but the snow cover usually does not last for more than a week.