Micro-Morphology of the Snow Surface at the Quelccaya Ice Cap, Peru
نویسندگان
چکیده
منابع مشابه
The Glaciochemistry of Snow - Pits from Quelccaya Ice Cap , Peru , 1982
We present glaciochemical data from a pilot study of two snow-pits from Quelccaya ice cap, Peruvian Andes . These are the first samples to be analyzed from Quelccaya for nitrate and sulfate by ion chromatography (IC), for nitrate-plus-nitrite, reactive silicate and reactive iron by colorimetry , and for sodium by atomic absorption spectrophotometry . The 3 m pits used in this study represent a ...
متن کاملA 1500-year record of tropical precipitation in ice cores from the quelccaya ice cap, peru.
Two ice cores, covering 1500 years of climatic information, from the summit (5670 meters) of the tropical Quelccaya ice cap, in the Andes of southern Peru, provide information on general environmental conditions including droughts, volcanic activity, moisture sources, temperature, and glacier net balance. The net balance record reconstructed from these cores reflects major precipitation trends ...
متن کاملCold air incursions, δ18O variability, and monsoon dynamics associated with snow days at Quelccaya Ice Cap, Peru
Quelccaya Ice Cap in the Andes of Peru contains an annually resolved δO record covering the past 1800 years; yet atmospheric dynamics associated with snow deposition and δO variability at this site are poorly understood. Here wemake use of 10 years of snow pit and short core δO data and hourly snow-height measurements obtained by an automated weather station deployed at the ice cap’s summit to ...
متن کاملEl nino-southern oscillation events recorded in the stratigraphy of the tropical quelccaya ice cap, peru.
Snow accumulation measured during 1982-1983 on the Quelccaya ice cap, Peru, was 70 percent of the average from 1975 through 1983. Inspection of 19 years (1964 through 1983) of accumulation measured near the summit of Quelccaya reveals a substantial decrease ( approximately 30 percent) in association with the last five El Niño-Southern Oscillation (ENSO) occurrences in the equatorial Pacific. Th...
متن کاملGLACIOLOGICAL INVESTIGATIONS OF THE TROPICAL QUELCCAYA ICE CAP, PERU* By LONNIE
Glaciological results of the continuing investigations of the Quelccaya ice cap located at lat. 13 ° 56' S., long. 70° 50 ' W., in the Cordillera Oriental of southern Peru are presented. lee cores to a depth of 15 m have been retrieved from the summit dome (5 650 m), middle dome (5543 m), and south dome (5 480 m) and sampled in detail for microparticle, oxygen-isotope, and total-,8-activity mea...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 1981
ISSN: 0022-1430,1727-5652
DOI: 10.3189/s002214300001145x