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Tempe Fossae
The Tempe Fossae are a group of troughs in the Arcadia quadrangle of Mars, located at 40.2° north latitude and 71.4° west longitude. They are about 2,000 km long and were named after an albedo feature at 40N, 70W. The term "fossae" is used to indicate large troughs when using geographical terminology related to Mars. Troughs, sometimes also called grabens, form when the crust is stretched until it breaks, which forms two breaks with a middle section moving down, leaving steep cliffs along the sides. Sometimes, a line of pits form as materials collapse into a void that forms from the stretching. Tempe Fossae Sinuous Channel.JPG, Tempe Fossae sinuous channel, as seen by HiRISE. Faults and scars near Tharsis province on Mars ESA22013931.jpeg, Grabens and horsts, as seen by Mars Express' High Resolution Stereo Camera. Topographic view of Tempe Fossae on Mars ESA22014172.jpeg, Topographic view by HRSC Northeast of Mars’ Tharsis province- Tempe Fossae in 3D ESA2201421 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcadia Map
Arcadia may refer to: Places Australia * Arcadia, New South Wales, a suburb of Sydney * Arcadia, Queensland * Arcadia, Victoria Canada * Arcadia, New Brunswick * Arcadia, Nova Scotia Greece * Arcadia (region), a region in the central Peloponnese * Arcadia (regional unit), a modern administrative unit covering the region * Arcadia (constituency), an electoral district covering the region * Kyparissia in Messenia, a town known in the Middle Ages as Arcadia ** Barony of Arcadia, a medieval Frankish fiefdom of the Principality of Achaea * Arcadia (Crete), a town and city-state of ancient Crete Ukraine * Arcadia (Odesa), a quarter in Odesa ** Arcadia Beach ** Arcadia Park, Odesa United States * Arcadia (Phoenix), a neighborhood in Phoenix and Scottsdale, Arizona * Arcadia, California * Arcadia, Florida * Arcadia, Illinois * Arcadia, Indiana * Arcadia, Iowa * Arcadia, Kansas * Arcadia, Louisiana * Arcadia, Maryland * Arcadia, Michigan * Arcadia Lake (Michigan) * Arcadia, M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcadia Quadrangle
The Arcadia quadrangle is one of a series of list of quadrangles on Mars, 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The quadrangle (geography), quadrangle is located in the north-central portion of Mars’ western hemisphere and covers 240° to 300° east longitude (60° to 120° west longitude) and 30° to 65° north latitude. The quadrangle uses a Lambert conformal conic projection at a nominal scale of 1:5,000,000 (1:5M). The Arcadia quadrangle is also referred to as MC-3 (Mars Chart-3). The name comes from a mountainous region in southern Greece. It was adopted by IAU, in 1958. The southern and northern borders of the Arcadia quadrangle are approximately 3,065 km and 1,500 km wide, respectively. The north to south distance is about 2,050 km (slightly less than the length of Greenland). The quadrangle covers an approximate area of 4.9 million square km, or a little over 3% of Mars’ surface a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trough-shaped Valley
A valley is an elongated low area often running between Hill, hills or Mountain, mountains and typically containing a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period. Some valleys are formed through erosion by glacier, glacial ice. These glaciers may remain present in valleys in high mountains or polar areas. At lower latitudes and altitudes, these glaciation, glacially formed valleys may have been created or enlarged during ice ages but now are ice-free and occupied by streams or rivers. In desert areas, valleys may be entirely dry or carry a watercourse only rarely. In karst, areas of limestone bedrock, dry valleys may also result from drainage now taking place cave, underground rather than at the surface. Rift valleys arise principally from tectonics, earth movements, rather than erosion. Many different types of valleys are described by geographers, using terms that m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albedo
Albedo ( ; ) is the fraction of sunlight that is Diffuse reflection, diffusely reflected by a body. It is measured on a scale from 0 (corresponding to a black body that absorbs all incident radiation) to 1 (corresponding to a body that reflects all incident radiation). ''Surface albedo'' is defined as the ratio of Radiosity (radiometry), radiosity ''J''e to the irradiance ''E''e (flux per unit area) received by a surface. The proportion reflected is not only determined by properties of the surface itself, but also by the spectral and angular distribution of solar radiation reaching the Earth's surface. These factors vary with atmospheric composition, geographic location, and time (see position of the Sun). While directional-hemispherical reflectance factor is calculated for a single angle of incidence (i.e., for a given position of the Sun), albedo is the directional integration of reflectance over all solar angles in a given period. The temporal resolution may range from seconds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
