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Disappointment Peak (California)
Disappointment Peak is a 13,917-foot-elevation (4,242 meter) summit located on the shared boundary of Fresno County and Inyo County in California, United States. Description The peak is set on the crest of the Sierra Nevada mountain range in the Palisades area. It also straddles the border shared by Kings Canyon National Park and John Muir Wilderness. It is situated southeast of line parent Middle Palisade, and west of The Thumb. Topographic relief is significant as the summit rises above Palisades Lakes in approximately one mile. Precipitation runoff from this mountain drains north to Big Pine Creek, as well as south and west into Palisade Creek which is a tributary of the Middle Fork Kings River. The John Muir Trail, which passes below the south base of the peak, provides an approach option. History The first ascent of the summit was made July 20, 1919, by J. M. Davies, A. L. Jordan, and H. H. Bliss via the Southwest Chute, and the Northeast Couloir was first climbed by No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Muir Trail
The John Muir Trail (JMT) (Northern Paiute language, Paiute: Nüümü Poyo, ''N-ue-mue Poh-yo'') is a long-distance trail in the Sierra Nevada (U.S.), Sierra Nevada mountain range of California, passing through Yosemite National Park, Yosemite, Kings Canyon National Park, Kings Canyon and Sequoia National Park, Sequoia National Parks. From the northern terminus at Happy Isles in Yosemite Valley () and the southern terminus located on the Summit (topography), summit of Mount Whitney (), the trail's length is , with a total elevation gain of approximately . For almost all of its length, the trail is in the High Sierra (biome), High Sierra backcountry and wilderness areas. For about , the trail follows the same footpath as the longer Pacific Crest Trail. It is named after John Muir, a naturalist. The vast majority of the trail is situated within National Wilderness Preservation System, designated wilderness. The trail passes through large swaths of alpine and high mountain scenery, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topographic Relief
Terrain or relief (also topographical relief) involves the vertical and horizontal dimensions of land surface. The term bathymetry is used to describe underwater relief, while hypsometry studies terrain relative to sea level. The Latin word (the root of ''terrain'') means "earth." In physical geography, terrain is the lay of the land. This is usually expressed in terms of the elevation, slope, and orientation of terrain features. Terrain affects surface water flow and distribution. Over a large area, it can affect weather and climate patterns. Importance The understanding of terrain is critical for many reasons: * The terrain of a region largely determines its suitability for human settlement: flatter alluvial plains tend to have better farming soils than steeper, rockier uplands. * In terms of environmental quality, agriculture, hydrology and other interdisciplinary sciences; understanding the terrain of an area assists the understanding of watershed boundaries, drai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orographic Lift
Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and create clouds and, under the right conditions, precipitation. Orographic lifting can have a number of effects, including precipitation, rain shadowing, leeward winds, and associated clouds. Precipitation Precipitation induced by orographic lift occurs in many places throughout the world. Examples include: * The Mogollon Rim in central Arizona * The western slope of the Sierra Nevada range in California * The mountains near Baja California North – specifically La Bocana to Laguna Hanson. * The windward slopes of Khasi and Jayantia Hills (see Mawsynram) in the state of Meghalaya in India. * The Western Highlands of Yemen, which receive by far the most rain in Arabia. * The Western Ghats that run along India's western coast. * The Grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Weather Front
A weather front is a boundary separating air masses for which several characteristics differ, such as air density, wind, temperature, and humidity. Disturbed and unstable weather due to these differences often arises along the boundary. For instance, cold fronts can bring bands of thunderstorms and cumulonimbus precipitation or be preceded by squall lines, while warm fronts are usually preceded by stratiform precipitation and fog. In summer, subtler humidity gradients are known as dry lines can trigger severe weather. Some fronts produce no precipitation and little cloudiness, although there is invariably always a wind shift. Cold fronts generally move from west to east, whereas warm fronts move poleward, although any direction is possible. Occluded fronts are a hybrid merge of the two, and stationary fronts are stalled in their motion. Cold fronts and cold occlusions move faster than warm fronts and warm occlusions because the dense air behind them can lift as well as push ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopædia Britannica
The (Latin for "British Encyclopædia") is a general knowledge English-language encyclopaedia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various times through the centuries. The encyclopaedia is maintained by about 100 full-time editors and more than 4,000 contributors. The 2010 version of the 15th edition, which spans 32 volumes and 32,640 pages, was the last printed edition. Since 2016, it has been published exclusively as an online encyclopaedia. Printed for 244 years, the ''Britannica'' was the longest running in-print encyclopaedia in the English language. It was first published between 1768 and 1771 in the Scottish capital of Edinburgh, as three volumes. The encyclopaedia grew in size: the second edition was 10 volumes, and by its fourth edition (1801–1810) it had expanded to 20 volumes. Its rising stature as a scholarly work helped recruit eminent con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpine Climate
Alpine climate is the typical weather (climate) for elevations above the tree line, where trees fail to grow due to cold. This climate is also referred to as a mountain climate or highland climate. Definition There are multiple definitions of alpine climate. In the Köppen climate classification, the alpine and mountain climates are part of group ''E'', along with the polar climate, where no month has a mean temperature higher than . According to the Holdridge life zone system, there are two mountain climates which prevent tree growth : a) the alpine climate, which occurs when the mean biotemperature of a location is between . The alpine climate in Holdridge system is roughly equivalent to the warmest tundra climates (ET) in the Köppen system. b) the alvar climate, the coldest mountain climate since the biotemperature is between 0 °C and 1.5 °C (biotemperature can never be below 0 °C). It corresponds more or less to the coldest tundra climates and to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Brower
David Ross Brower (; July 1, 1912 – November 5, 2000) was a prominent environmentalist and the founder of many environmental organizations, including the John Muir Institute for Environmental Studies (1997), Friends of the Earth (1969), Earth Island Institute (1982), North Cascades Conservation Council, and Fate of the Earth Conferences. From 1952 to 1969, he served as the first Executive Director of the Sierra Club, and served on its board three times: from 1941–1953; 1983–1988; and 1995–2000 as a petition candidate enlisted by reform-activists known as the John Muir Sierrans. As a younger man, he was a prominent mountaineer. Early life Brower was born in Berkeley, California. He was married to Anne Hus Brower (1913–2001) whom he met when they were both editors at the University of California Press in Berkeley. Anne was the daughter of Francis L M. Hus and Frances Hus (1876–1952), while Frances was the daughter of John P. Irish. Kenneth Brower, David Brower's s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Board On Geographic Names
The United States Board on Geographic Names (BGN) is a federal body operating under the United States Secretary of the Interior. The purpose of the board is to establish and maintain uniform usage of geographic names throughout the federal government of the United States. History On January 8, 1890, Thomas Corwin Mendenhall, superintendent of the US Coast and Geodetic Survey Office, wrote to 10 noted geographers "to suggest the organization of a Board made up of representatives from the different Government services interested, to which may be referred any disputed question of geographical orthography." President Benjamin Harrison signed executive order 28 on September 4, 1890, establishing the ''Board on Geographical Names''. "To this Board shall be referred all unsettled questions concerning geographic names. The decisions of the Board are to be accepted y federal departmentsas the standard authority for such matters." The board was given authority to resolve all unsettled ques ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galen Rowell
Galen Avery Rowell (August 23, 1940 – August 11, 2002) was a wilderness photographer, adventure photojournalist and mountaineer. Born in Oakland, California, he became a full-time photographer in 1972. Early life and education Rowell was introduced to the wilderness at a very young age and completed his first roped climb in Yosemite Valley when he was 16. For the rest of his life, he climbed mountains and explored landscapes. He began taking pictures on excursions into the wild so he could share his experiences with friends and family. After graduating from Berkeley High School in 1958, he stayed in Berkeley to study at the University of California but dropped out to pursue climbing. Career In 1972 Rowell sold his small automotive business and became a full-time photographer. Within a year, he had completed his first major assignment, a cover story for ''National Geographic''. The story originated from an invitation by fellow photographer Dewitt Jones to help him on an assign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norman Clyde
Norman Clyde (April 8, 1885 – December 23, 1972) was a mountaineer, mountain guide, freelance writer, nature photographer, and self-trained naturalist. He is well known for achieving over 130 first ascents, many in California's Sierra Nevada and Montana's Glacier National Park. He also set a speed climbing record on California's Mount Shasta in 1923. The Bancroft Library at the University of California, Berkeley has 1467 articles written by Clyde in its archives. Early life, marriage and work Clyde was born in Philadelphia, the son of a Reformed Presbyterian minister. He attended Geneva College graduating in the Classics in June 1909. After teaching at several rural schools, including schools in Fargo, North Dakota and Mount Pleasant, Utah, he enrolled at the University of California, Berkeley in 1911. After two years of graduate work he returned to teaching, mostly in northern California, including the towns of McCloud and Weaverville. He taught history, science, and Lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Ascent
In mountaineering, a first ascent (abbreviated to FA in guide books) is the first successful, documented attainment of the top of a mountain or the first to follow a particular climbing route. First mountain ascents are notable because they entail genuine exploration, with greater risks, challenges and recognition than climbing a route pioneered by others. The person who performs the first ascent is called the first ascensionist. In free climbing, a first ascent (or first free ascent, abbreviated FFA) of a climbing route is the first successful, documented climb of a route without using equipment such as anchors or ropes for aiding progression or resting. History The details of the first ascents of even many prominent mountains are scanty or unknown; sometimes the only evidence of prior summiting is a cairn, artifacts, or inscriptions at the top. Today, first ascents are generally carefully recorded and usually mentioned in guidebooks. The term is also used when referrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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