irfanmnur

extreme waves

extreme waves of sea water on the beach like a tsunami wave

Seulawah Agam

Seulawah Agam is an extensive forested stratovolcano located at the northwestern tip of Sumatra. Several names have been given to the mountain: Seulawaih Agam, Seulawain Agam, Solawa Agam, Solawaik Agam, Selawadjanten and Goldberg. The volcano was formed during the Pleistocene-Holocene age. The mountain has a large caldera, called Lam Teuba. A smaller 8×6 km caldera is within the Lam Teuba caldera. The volcano contains several hills: sedimentary hills, old volcano hills, a volcanic cone and peneplain area. The volcanic cone was formed by lava and pyroclastic flows. There are three craters. The Tanah Cempago crater is easily recognized, while the other two are covered with vegetation. As of January 2013, Seulawah Agam is showing signs of renewed activity. Localised seismicity has been recorded in the vicinity of the volcano.

Sunset, Sunrise and Golden Hour

Sunset, also known as sundown, is the daily disappearance of the Sun below the horizon due to Earth's rotation. As viewed from the Equator, the equinox Sun sets exactly due west in both Spring and Autumn. As viewed from the middle latitudes, the local summer Sun sets to the northwest for the Northern Hemisphere, but to the southwest for the Southern Hemisphere. The time of sunset is defined in astronomy as the moment when the upper limb of the Sun disappears below the horizon. Near the horizon, atmospheric refraction causes sunlight rays to be distorted to such an extent that geometrically the solar disk is already about one diameter below the horizon when a sunset is observed. Sunset is distinct from twilight, which is divided into three stages, the first being civil twilight, which begins once the Sun has disappeared below the horizon, and continues until it descends to 6 degrees below the horizon; the second phase is nautical twilight, between 6 and 12 degrees below the horizon; and the third is astronomical twilight, which is the period when the Sun is between 12 and 18 degrees below the horizon. Dusk is at the very end of astronomical twilight, and is the darkest moment of twilight just before night. Night occurs when the Sun reaches 18 degrees below the horizon and no longer illuminates the sky. Locations further North than the Arctic Circle and further South than the Antarctic Circle experience no full sunset or sunrise on at least one day of the year, when the polar day or the polar night persists continuously for 24 hours.

2004 Aceh Tsunami

A series of large tsunami waves up to 30 metres (100 ft) high were created by the underwater seismic activity. Communities along the surrounding coasts of the Indian Ocean were seriously affected, and the tsunamis killed an estimated 227,898 people in 14 countries. The Indonesian city of Banda Aceh reported the largest number of victims. The earthquake was one of the deadliest natural disasters in recorded history. The direct results caused major disruptions to living conditions and commerce, particularly in Indonesia, Sri Lanka, India, and Thailand.

Animals

Baiturrahman Grand Mosque, Banda Aceh

Baiturrahman Grand Mosque is a Mosque located in the center of Banda Aceh city, Aceh Province, Indonesia. The Baiturrahman Grand Mosque is a symbol of religion, culture, spirit, strength, struggle and nationalism of the Acehnese people. The mosque is a landmark of Banda Aceh and has survived the 2004 Indian Ocean tsunami.

Harun Keuchik Leumik Mosque

Nature

Nature photography is a wide range of photography taken outdoors and devoted to displaying natural elements such as landscapes, wildlife, plants, and close-ups of natural scenes and textures. Nature photography tends to put a stronger emphasis on the aesthetic value of the photo than other photography genres.