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Map of Peru
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Nevado Ocshapalca, Quebrada Llaca.
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Nevado Chacraraju, Quebrada Llanganuco.
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Nevado Rajuntay, Cordillera La Viuda.
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Pisco Este, Laguna 69 and Chacraraju Oeste.
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Nevado Alpamayo, Quebrada Santa Cruz.
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Nevado Cayesh, Quebrada Quilcayhuanca.
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Entrenar con Pulsometro
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El uso del pulsómetro es clave en la mejora de tu forma física, ya que puedes entrenar en la zona de ritmo cardíaco más apropiada a tus necesidades.
Si cuando leas este artículo deseas aumentar la información, te recomiendo visites las secciones sobre frecuencia cardiaca y test de Cooper.
Lo primero que debemos conocer es nuestra frecuencia cardiaca de reposo (F.C.REP.); las pulsaciones se toman por la mañana, justo antes de levantarse.
En segundo lugar es necesario realizar un test de esfuerzo para conocer nuestra frecuencia cardiaca máxima (F.C.MAX.). Te recomiendo varias opciones:
1º. Calienta trotando durante unos 5 minutos, de forma suave. Corre durante 3 minutos a tope en una zona con ligera subida. Cuando termines mira tu pulsómetro.
2º. Localiza una buena subida, larga y de mucha pendiente. Calienta con un trote suave y unas pequeñas progresiones al menos durante 10 minutos. Después del calentamiento, y sin parar, empieza una cuenta atrás de 5 minutos en la que vas a aumentar el ritmo con carrera fuerte, para acabar subiendo la cuesta a tus
máximas posibilidades. Los últimos 2-3 minutos debes hacerlos a tope. Fíjate en tu pulsómetro justo en el minuto final, esta cifra es tu F.C.M.
3º. Corriendo o en bicicleta. Después del calentamiento y sin parar aumenta el ritmo todo lo que puedas durante 3 minutos, luego descansa un par de minutos.
Fíjate en la lectura de tu pulsómetro al acabar, que será la máxima, o muy aproximada. Ten en cuenta que puedes llegar al máximo unos instantes después de haber
acabado esos 3 minutos y esfuérzate para que realmente esos minutos sean lo más intensos posibles.
Una vez obtenidos estos datos vamos a calcular nuestras pulsaciones para distintas zonas de trabajo...
seguir leyendo
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Rendimiento Físico
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VO2 max es el volumen máximo de oxigeno que extraemos del aire inspirado, que va a ser transportado por la
sangre gracias a la hemoglobina, para que los músculos y otros tejidos no activos lo utilicen. Representa la
capacidad aeróbica que se define como la capacidad del organismo para funcionar eficientemente y llevar a cabo
actividades sostenidas con poco esfuerzo y con una recuperación rápida. Suele expresarse en litros de oxígeno
por minuto (l/min) o como el consumo máximo de mililitros de oxígeno por kilogramo de peso corporal por minuto
(ml/kg/min).
El doctor Kenneth H. Cooper hizo un estudio para la Fuerza Aérea de los Estados Unidos a finales de los años 60'
que tuvo como resultado el Test de Cooper el cual consiste en cubrir corriendo la máxima distancia posible en 12
minutos...
seguir leyendo
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The Peruvian Andes
The Andes is the longest and one of the highest mountain ranges in the world. This range runs
along the Pacific coast of South America for more than 7000 kilometers. From the vicinity of the
Caribean Sea to the Cape Horn the Andes cross seven countries, even though the highest peaks
over 6000 meters can only be found in the Central Andes at the South Hemisphere.
Peru is entirely located at the tropical zone in the western side of South America. The Andes
cross the country from North to South giving place to a wide range of ecosystems and climate
zones, according to the altitude, latitude and air mass circulation. At present the Peruvian
Andes concentrate around an 80% of the tropical glaciers in the world. The snow capped
mountains in Peru known as "nevados" may be isolated as the volcanoes in the SW of the country
(Coropuna 6377 m, Ampato 6288 m, Solimana 6117 m, and others), or grouped in mountain
ranges rarely longer than 40 kilometers that local people use to name "cordilleras".
The northern third of the Peruvian Andes is sensibly lower and narrower than the rest.
At 8°40' South latitude a glaciated mountain appears, Nevado Champara 5750 meters high,
from there to the South boundaries of the country the snow capped mountains and glaciers
will be present. In the southern third of Peru the Andes get wider and the glaciation
limit in the dryer West side climbs over 5400 meters, while the eastern ice tongues still
remain under 5000 meters.
Among the highest cordilleras in Peru the most amazing ones are the cordilleras Blanca and
Huayhuash in central Peru, and Vilcanota and Vilcabamba in the southern part of the country.
>>Photos of the Andes of Peru
>>Topographic Map of Peru
>>Peru at 1:1 000 000 Scale
The Cordillera Blanca
From its origin at Nevado Champara to its end at Nevado Tuco the Cordillera Blanca
runs in a NW-SE direction grouping in a bit more than 180 kilometers 33 peaks over 6000
meters. Narrow valleys called "quebradas" flowing down from the range are served either by
unpaved roads or footpaths that allow hikers and climbers to get from the largest cities
to the foot of the mountains in a few hours.
The Cordillera Negra located at the W and parallel to the Blanca doesn´t have glaciers, the
highest point there rises 5187 meters high. Between both cordilleras runs the Santa river
through a green and well populated valley called Callejon de Huaylas, the largest cities
in the region are, from S to N, Recuay, Huaraz, Carhuaz, Yungay and Caraz. The Santa is
born in Laguna Conococha (4100 m) at the head of the Callejon de Huaylas, the quebradas and
streams flowing down from the glaciers in the right margin feed the river, then as the valley
becomes narrow and deep the Santa turns to the W running into a canyon, the Cañon del Pato,
to reach the Pacific Ocean.
During the mountain climbing season, from may to september, weather conditions are usually
stable in the range, with shiny days and slightly cold or cold nights depending to the altitude.
In recent years an increased number of difficult mixed and rocky ways have been opened
along the range in addition to the classic snow and ice climbs yet ranked between the most
challenging in the continent.
>>Cordillera Blanca Map
The Cordillera Huayhuash
Located only 50 kilometers South of the Cordillera Blanca and 200 kilometers North of Lima,
the Cordillera Huayhuash is perhaps the most spectacular in Peru. A dozen of towering peaks
concentrated in an area of 150 square kilometers make the scenery for the finest mountain
trail in Peru and one of the best in the world. The whole trail takes ten days to complete
it and crosses four passes over 4700 meters in a distance of 150 kilometers of walking.
Relatively far away from any major urban area the region remains almost wild.
Although the towns of Chiquian in the N and Cajatambo in the S have been for a long time
the starting points for those who wanted to visit the range, in recent years most visitors
had preferred the closer town of Matacancha, yet connected to Huaraz by a road, to start
hiking. From that small town the trail leads to the S to lagunas Mitucocha, Carhuacocha
and Viconga on the eastern slopes of the range. From Punta Cuyoc pass (5000 m) the path
turns to the right going down the W side of the mountains to Huanacupatay and Huatiac.
Finnally, to complete the circuit, the route leaves Huatiac to the N climbing Punta Tapush,
descending to Cashpapampa and Laguna Jahuacocha and leading up to Rondoy.
Most of the mountains in the range are really steep and specially difficult to climb, the
best known of them are Nevado Yerupajá (6634 m, second highest in Peru), Siula (6356 m),
Sarapo (6127 m) and Jirishanca (6094 m).
>>Cordillera Huayhuash Map
The Central Andes
The Central Andes of Peru display seven glaciated groups of mountains. Five of them (Raura, La
Viuda, Central, Pariacaca and Yauyos) on the West Andes, and the other two (Huaguruncho and
Huaytapallana) on the East Andes. Less impressive than the biggest cordilleras in the country
those groups of mountains are not considered in most tourist guides but are good for hiking
and climbing as well, the two ones on the East Andes are particularly wild and heavy
glaciated due to the humid amazon winds.
The Cordillera Raura is located less than five kilometers S of the Cordillera Huayhuash
and separated from it by Laguna Viconga, in the border of the departments of Lima, Huanuco and
Pasco. The lenght of the range is about 20 kilometers from N to S and despite of the
proximity to the capital (less than 180 kilometers) getting there takes nearly a day.
The highest mountains are Santa Rosa (5706 m), Yarupa (5685 m), Culle (5550 m), Torre
de Cristal (5500 m) and Leon Huacanan (5420 m).
The Cordillera Huaguruncho is on the edge of the East Andes hanging over the Amazon
rainforest, 40 kilometers to the E of Cerro de Pasco near the town of Huachon. Although
there is only one major mountain in the range (Nevado Huaguruncho, 5721 m) surrounded by some
smaller glaciated peaks, the region deserves to be visited because its wild and astonishing
beauty. Other mountains in the range are Ñausacocha (5152 m), Yanacocha (5138 m) and
Añilcocha (5073 m).
The Cordillera La Viuda is a 50 kilometers long region with a few sparse snow capped peaks
located mainly in the province of Canta, some 100 kilometers to the NE of the city of Lima. Getting
there from the capital takes only 3 hours, that is why most local climbers and hikers prefer these
mountains to expend their weekends. The dominant peaks are Rajuntay (5412 m), La Corte (5362 m),
Alcoy (5350 m) and Puagjanca (5350 m).
The Cordillera Central is a mountain region made up of a few small peaks in the province of
Huarochiri, limited by Nevado Rajuntay in the N and the Pariacaca group in the E. The set of peaks
in the Ticlio area (Anticona, San Andrés, Santa Rosa, Yanashinga, Lorito, Volcan and Meiggs) are by
far the most visited in the range because its proximity to the road Lima-La Oroya. The highest points
in Cordillera Central are Huacaypaca (5365 m), Tunac (5315 m), San Luis (5310 m), Juri (5310 m),
Huayracancha (5300 m), Shira (5300 m), Ucrupata (5300 m) and Huachhua (5300 m).
The Cordillera Pariacaca is approximately 100 kilometers E of the capital, in the border of
the departments of Lima and Junin. This 30 km long range is such a fine place to hike and
climb with more than ten glaciated peaks over 5500 meters. The best way to get into the area is
to hire a car in order to save a day of walking from any of the neighbor towns. The highest
mountains in the range are Pariacaca (5750 m), Tunshu (5730 m), Antachaire (5700 m),
Colquepucro (5658 m), Suerococha (5600 m) and Paca (5550 m).
The Cordillera Yauyos is located in the province of Yauyos, some 120 km SE from Lima city,
in the center of the upper Cañete river basin. This group of mountains has been visited by several
parties of climbers, hikers and tourists during the last years. Unfortunately there is a 100 miles
trip on dirt roads to make to get there. The dominant mountains are Ticlla (5897 m), Llongote (5781 m),
Huayna Cotoni (5500 m), Cullec (5500 m) and Ancovilca (5467 m).
The Cordillera Huaytapallana is located 20 kilometers NE to the city of Huancayo in the
department of Junin. Twenty kilometers long from N to S and heavy glaciated, as the other ranges
in the East Andes of Peru, Huaytapallana is fine for ice climbing. The highest peaks are Lasuntay
(5557 m), Chuspi (5400 m), Anchi Grande (5350 m), Cochas (5315 m) and Tello (5300 m).
>>Central Andes Map
The Eastern Andes
In the sixteenth century the Cordillera Vilcabamba area was the refuge of the last Incas, from
there they aimed to reconquer their lands from the Spanish Crown. Two of the most important ruins in
Peru, Machu Picchu and Choquequirao, were settled in the region. The transition between the tropical
forest and the snow mountains occurs in a few kilometers. The area is great for climbing, hiking and
visiting archaeological sites. The highest mountains are Salkantay (6271 m), Pumasillo (5991 m),
Lasunayoc (5960 m), Soray (5928 m), Padreyoc (5771 m), Panta (5605 m), Huayanay (5464 m),
Huamantay (5450 m), Palcay (5400 m), Moyoc (5209 m), Choquezafra (5152 m) and Ocobamba (5126 m).
The Cordillera Urubamba, which lies North of the Vilcanota-Urubamba river is made up of six
glaciated massifs running in a West to East direction for about fifty kilometers, except for the isolated
Terijuay group (5250 m) located twenty kilometers northward, South of this peak the other glaciated
groups in the range are Veronica (5682 m), Halancoma (5350 m), Pumahuanca (5300 m) Chicon (5530 m) and
Sahuasiray (5818 m). The range is known for providing fine rock climbing.
The most interesting mountain range in Southern Peru is Cordillera Vilcanota, located in the border
of the departments of Cusco and Puno, some 80 kilometers SE to the city of Cusco, at about 14° South
latitude and 71° West longitude.
The northern group of mountains in the Vilcanota region is called Sinakara or Nudo de Ayacachi, the highest
mountains in this area are Sasahuini or Colquepunco (5522 m), Ayacachi (5470 m), Huillasercu (5430 m)
and Coylloriti (5402 m).
Twenty five kilometers South of Nudo de Ayacachi, crossing the Campa Pass, the dominant peaks in the
Ausangate group are Ausangate (6384 m), Santa Catalina or Mariposa (5808 m), Huayruro Punco or Yanajaja
(5550 m) and Campa (5500 m).
On the North side of Campa Pass, the Cayangate group highest mountains from North to South are Ccallangate
(5950 m), Cayangate or Collpa Ananta (6110 m) and Pachanta or Collque Cruz (5950 m).
The next set of peaks in the East of Cayangate is the Jatunhuma group dominated by Jatunccampa (5700 m),
Jatunhuma or Jatunpampa (6093 m) and Ninaparaco (5800 m).
Some five kilometers East to the Jatunhuma group, Colquecruz or Alcamarinayoc (6100 m) peak in the North,
Huiscachani (6106 m) peak -also known as Jatunriti, Yanaloma or Chumpe- in the middle and Jatunñano Punta
(5800 m) in the South, are the dominating altitudes on a 15 kilometers long ridge.
The next set of mountains in the East, the Yayamari group, is located North of Laguna Amayani or Jasjana,
the main peaks from West to East are Japu Punta (5850 m), Yayamari (6049 m) -also known as Montura or
Ambroja- and Huila Aje (5900 m).
Between Yayamari group and the mountains situated North of Chimboya Pass lies a North to South ridge
where the Auzangate (5700 m) peak in the North and the Condoriquiña (5750 m) peak in the South are the
highest points.
More to the East, the highest peaks on the North side of Chimboya Pass are Quisoquipina (5650 m),
Escopetane (5600 m) and San Braulio or San Broglio (5650 m).
A bit far away, South of Chimboya Pass, is Nevado Millo (5500 m).
More to the South, the highest point in Ritipampa-Quelccaya ice cap, the largest single glacier in the
tropics, is Joyllor Puñuna or Ccoyllor Puñuna (5743 m).
The last set of peaks in the South of Chimboya area is the Kunurana group of mountains, dominated by
Jonorana or Cunurana (5550 m), Pumanota (5500 m) and Quelma (5400 m).
The Cordillera Carabaya is an isolated group of mountains located East of Macusani town and
San Gaban river in the department of Puno. The highest peaks in the range are towering over
the Quenamari glaciers less than five kilometers away from the Nuñoa-Macusani-Ollachea road.
The dominant mountains are Allincapac (5780 m), Huaynacapac, Tococapac and Chichicapac.
The Cordillera La Raya is an extended mountain range located between the departments of Cusco and
Puno which is made up of two small glaciated areas separated from each other by a distance of 90
kilometers. The highest peaks in the first area, situated less than 10 kilometers E to the town of
Marangani, are Condorcota (5400 m), Chinchina (5468 m), Moscaya (5400 m) and Chimboya
(5489 m). The dominating mountains in the second area, 10 kilometers SW of Palca town, are Quilca
(5350 m), San Luis (5350 m), Minapunta (5465 m) and Yanahuara (5350 m).
The Cordillera Apolobamba runs parallel to the North shore of the Lago Titicaca at a distance
of about 60 kilometers from it, between Peru and Bolivia. The lenght of this mountain range exceeds
70 kilometers, one third of it in the peruvian territory and the rest in Bolivia. The dominant
peak in the range is located on the international border. The highest mountains in the peruvian
part of Apolobamba are Chaupiorco Sur (6044 m), Chaupiorco Norte (6000 m), Ananea Grande
(5852 m), Ananea Chico (5800 m), Palomani Grande (5723 m) and Palomani Tranca (5633 m).
>>Eastern Andes Map
The Southern Andes
The Southern Andes of Peru are made up of five glaciated mountain ranges. Lying in a volcanic belt along the
Pacific coast cordilleras Huanzo, Ampato, Chila, Volcánica and Barroso are located in the most arid region in the
country resulting in a higher snowline (situated at about 5400 meters). Most of the biggest volcanoes are
easy to climb and several of them have been climbed since the prehispanic times.
Starting from the NW the first volcano to mention in Cordillera Ampato is Sarasara (5522 m),
located in the department of Ayacucho some 10 kilometers W of Pausa town. Entering the department of
Arequipa, 20 kilometers S of Cotahuasi town, Solimana (6117 m) is the first volcano rising to over
6000 meters. The next volcano is the highest in Peru, Coropuna is located 25 kilometers SE of Solimana
and 25 kilometers N of Chuquibamba town, between Ocoña river basin and Majes river basin, Coropuna has
three summits and all of them are over 6000 meters (6377 m, 6350 m and 6300 m). Finally, the
last set of volcanoes in Cordillera Ampato is situated 60 kilometers E of Coropuna, on the opposite
margin of Majes river, these summits are Ampato (6288 m), Hualca Hualca (6025 m) and Sabancaya
(5967 m).
The Cordillera Volcanica runs East to the city of Arequipa for nearly 80 kilometers in a NW-SE
direction. The highest points in the range are Chachani (6075 m) 20 kilometers N of Arequipa city,
Misti (5821 m), Pichu Pichu (5650 m) and Ubinas (5672 m) situated 35 kilometers N of Omate
town. Despite the lack of glaciers some amount of snowfall is often covering the top of the highest
mountains in the range during the year.
The Cordillera Barroso runs for approximately 130 kilometers from the left margin of Tambo river
in the department of Moquegua to the Peru-Chile border. The day and night temperature differences
are considerable in this arid region which is drained by a few streams and often whipped by cold
winds. The best known volcanoes in the range are Ticsani (5408 m), Tutupaca (5806 m),
Yucamani (5508 m), Casiri (5650 m) and Barroso (5741 m).
The Cordillera Chila covers a large area of 70 km by 30 km on the North of the Colca river in
the department of Arequipa. The snowcovered slopes of Nevado Mismi, one of the major peaks in the range,
had proved to be the most remote sources of the Amazon river. Starting from the West side, the main
peaks in the chain are Chila (5654 m), Casiri (5647 m), Minaspata (5555 m), Surihuiri
(5506 m), Jatunpila (5450 m) and Mismi (5597 m).
The Cordillera Huanzo is located on the border of the departments of Ayacucho, Cusco and Arequipa
at about 72°28' W longitude and 14°40' S latitude. Although the whole range can hardly fit into a 60
kilometers square area, most of the main peaks are aligned on a single 10 km long ridge. The highest
mountains are Huaña (5400 m), Chancoaña (5494 m), Huaytane (5400 m), Huanzillo (5400 m),
Huaychahui (5400 m) and Huajrahuire (5425 m).
>>Southern Andes Map
The Highest Mountains in Peru
The following list of the highest mountains in Peru has been made according to the Carta Nacional 1:100000.
To be included in the list a summit has to be more than one hundred meters over the surrounding ground.
The location of the mountains is expressed in Geographic Coordinates and the DATUM is WGS84.
>>Highest Mountains in Peru
Go to Top ^
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The Carta Nacional
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The Carta Nacional is the topographic base map of Peru published by the Instituto Geografico Nacional at scale
of 1:100000. The 500 sheets covering all the peruvian territory are organized in rows (numbers from 01 to 37)
and columns (letters from A to Z). Each sheet covers a square area of 30 minutes by 30 minutes.
Some travelers, hikers and climbers consider that the Carta Nacional is the most accurate map they can find.
I have placed the available sheets of the Carta Nacional over the regional boundaries of Peru in the map shown
below. The Pan Tool is always enabled, holding down the mouse left button while dragging it over the map will
let you to see the hidden areas of the map. I recommend Internet Explorer or Google Chrome to navigate over the
sheets, other browsers as Firefox, Safari and Opera can't perform the tasks faster.
INDEX MAP for the Carta Nacional
(CUADRO DE EMPALMES)
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Blog Corredores
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Los 10K de hace dos semanas han marcado una inflexión en mi ritmo de carrera durante los entrenamientos, si antes seis minutos
por cada mil metros eran mi meta, ahora puedo hacer mil metros en cinco con treinta. Es muy poco si se compara con lo que
acostumbran hacer otros corredores, pero por el momento está bien ¡empieza a gustarme más esto del running!. Se que voy con las pulsaciones algo altas, trato de llegar a las 165-170 PPM antes de los primeros dos mil metros para quedarme por allí en lo que
sigue. Al parecer entrenarme a ritmo de carrera me está funcionando, no me complico, nada de series ni rodajes largos.
Hoy me costó mucho levantarme a las cinco y cuarto de la mañana para salir a correr...
seguir leyendo
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Test de Cooper
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El Test de Cooper es una prueba para evaluar la condición física de una persona en un momento dado. Su objetivo
es evaluar la capacidad aeróbica de la persona y verificar su VO2 max, vale decir, la cantidad máxima de oxígeno
que puede aprovechar el cuerpo durante un período determinado realizando una actividad física de exigencia.
La prueba se basa en recorrer la mayor distancia posible en 12 minutos, con el fin de verificar la resistencia
aerobica de la persona. Esto implica realizar un trote activo, firme y sin pausa, de acuerdo a las posibilidades
físicas de cada persona...
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Ritmo Cardiaco
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El Ritmo Cardiaco es una medida que nos provee nuestro corazón con la que podemos evaluar la intensidad en que
estamos realizando determinado ejercicio. Mediante la cantidad de palpitaciones por minuto (PPM = Palpitaciones Por
Minuto) que emite el corazón podemos saber la efectividad, el tiempo de duración y el tiempo de recuperación del
ejercicio que estamos realizando. El ritmo cardiaco o PPM varia de una persona a otra, difiere según el sexo, edad,
peso corporal y por el “stress” acumulado durante el día.
Todas las personas tenemos un ritmo cardiaco mínimo y un ritmo cardiaco máximo. El ritmo cardiaco mínimo se puede
registrar ...
seguir leyendo
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Calentamiento Global
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Quienes a lo largo de los últimos años estuvimos frecuentando los glaciares de montaña pudimos constatar como
año a año estos fueron reduciéndose gradualmente. Aunque el retroceso glaciar afectó a todas las montañas sin
excepción, éste resultó mucho más evidente en aquellas menores de 5300 metros, las cuales en muchos casos
llegaron a perder totalmente sus glaciares. Quizá el caso más llamativo de deglaciación en la Cordillera
Central se haya dado en la zona de Ticlio, donde en el transcurso de los últimos quince años los glaciares de
San Andrés y Yanashinga sufrieron pérdidas de masa del orden del ochenta por ciento (cliquear la siguiente
imagen para ampliarla).
Aunque la deglaciación en otras montañas mayores fue algo menos evidente se hizo necesario improvisar
variantes en las rutas normales de ascenso debido a la aparición de nuevos obstáculos como paredes o grietas.
Durante años la arista oeste del Nevado Rajuntay (5412 m) en la Cordillera La Viuda
Ver Fotos
fue la ruta normal de ascenso a la cumbre (al centro de la foto) pero a fines de los ochenta subir por
la cresta norte (a la izquierda de la foto) se había hecho más seguro debido al afloramiento de paredes de
roca descompuesta en los tres últimos largos de la cara oeste.
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Presuntos Culpables
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La opinión general es que la actividad humana a lo largo del último siglo ha alterado la composición de la
atmósfera hasta el punto de desencadenar un proceso acelerado de cambio climático. Se señala que un tipo de gases
termoactivos comunmente llamados "gases de efecto invernadero" (GEI)
Ver Tabla, cuya
concentración en la atmósfera ha ido en aumento desde la aparición de la revolución industrial, son responsables
directos del calentamiento global al impedir que la radiación solar refractada por la superficie terrestre pueda
regresar de nuevo al espacio. La analogía entre los gases termoactivos y los cristales de un invernadero se da en
el sentido en que estos al igual que aquellos permiten pasar la radiación solar directa (de onda corta) e impiden
la salida de la radiación solar refractada desde el interior (de onda larga), lo que ocasiona en ambos casos el
aumento de la temperatura.
El dióxido de carbono (CO2) es el gas termoactivo más abundante después del vapor de agua, su concentración en la
atmósfera pasó de 280 ppm (0.03%) a 379 ppm (0.04%) en los últimos 250 años y se le atribuye a él la mayor tasa
de contribución en el proceso de calentamiento global. Lo hasta aqui explicado de manera breve parece dejar
satisfechos a casi todos, incluyendo a instituciones y organismos competentes. Sin embargo desde hace poco tiempo
algunos han empezado a preguntarse si el calentamiento global podría estar debiéndose también a causas no
antrópicas. El gráfico siguiente Ver Gráfico, elaborado a partir de medias móviles de diez años, muestra que la evolución de
la temperatura media global en los últimos 140 años ha presentado dos periodos de treinta años cada uno
(1880-1910 y 1940-1970) en los que la concentración de CO2 aumentaba de manera constante mientras que la
temperatura media global registraba descensos. Cabe entonces perguntarse si tales periodos decadales, que indican
tendencias que van mucho más allá de cualquier variabilidad interanual, en los que la relación Temperatura Media
Global - Concentración de CO2 fue inversa no nos pueden llevar a suponer que los gases de efecto invernadero no
son los únicos causantes del calentamiento global.
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