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Title: Glaciological investigations in the TUTO area of Greenland
Authors: University of Denver.
Griffiths, Thomas Melvin, 1910-
Keywords: Glaciers
Glacier ice
Glacier movement
Glacier ablation
Thule, Greenland
Publisher: U.S. Army Snow, Ice, and Permafrost Research Establishment.
Engineer Research and Development Center (U.S.)
Series/Report no.: SIPRE report ; 47.
Description: Technical Report
Summary: This report is primarily concerned with work accomplished during the 1956 field season, but observations and data obtained in 1954 and 1955 are included in many cases. More detailed accounts of the 1954 and 1955 glaciological work in the Thule area are given in SIPRE Reports 28 and 38 (Schytt, 1955; Meier, 1957) and Research Report 17 (Bishop, 1957). Glaciological work done in connection with the ice tunnel at Camp TUTO is not covered in this report (see Rausch, 1957). The 1956 program had the following objectives: (1) The continued collection of accumulation and ablation data on the Thule Ramp, on the P-Mountain Glacier, and at stations along the TUTO-Whitehorse Trail. (2) The establishment of a permanent base line in the Camp TUTO area which will serve for control of current and future projects in that area. (3) The determination of further ice movement velocities on the Thule Ramp, as a continuation of work begun there in 1954, and the adjustment of this ice movement network to the new base line established in 1956. (4) Continued measurements of the ice velocity network established in 1955 in the Blue Ice region (Meier, 1957). (5) The measurement of a triangulation network and establishment of photographic control stations on and near the edge of the ice from a point south of Camp TUTO to the Moltke Glacier on the north to be used for the compilation of an ice-edge map from photography to be procured by the United States Air Force. (6) The accumulation and interpretation of firn and ice temperature data from installed thermocouples in the Blue Ice Area, as a continuation of work done there in 1955 (Meier, 1957), and along the TUTO-Whitehorse Trail at mile 7 and mile 20, as a continuation of work begun in 1954. (7) The gathering of other general information, including observation of ice-margin geomorphological phenomena and further general examination of the crevasse pattern in the Blue Ice and adjacent areas. Meteorology : With the exception of firn and ice temperature data (see Chapter IV), no direct meteorological data or microclimatological data were collected by our party in 1956. The collection of meteorological data to correlate with the North Greenland glaciological program was begun in 1954 (Schytt, 1955), and fairly complete records of temperature, relative humidity, and average wind velocity were collected. In 1955, data were collected near the ice margin at Camp TUTO by the U. S. Army Arctic Construction and Frost Effects Laboratory (USA ACFEL). These were supplemented by additional meteorological data collected at the Blue Ice camp, and an interrupted compilation of temperatures and wind directions at several points on the ice cap along the TUTO-Whitehorse Traverse. In 1956, all meteorological data were collected by ACFEL again, with the cooperation of Signal Corps personnel. A summary of these data is not yet available here. It is hoped that these data will soon be summarized so that possible correlations may be sought between these data and the accumulation-ablation figures, movement data, and ice and firn temperatures now compiled from the past three years. However, a comprehensive correlation will be difficult because of the scattered nature of the material available. Such correlations need detailed information for several categories of study within a restricted environment, collected continuously over a long period of time. NOTE: This file is very large. Allow your browser several minutes to download the file.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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