MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES.
Greenland and Antarctica ice samples were analyzed for size distribution of the particlate content. Samples are from Little America V, age 800 yr; Byrd Station, age 1340 yr; Byrd Station, age 450 yr; and Site 2, Greenland, age 220 yr. Particle concentration is lower in the younger Byrd samples than...
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1967
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ftdtic:AD0669612 2023-05-15T13:49:40+02:00 MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES. Hamilton,Wayne L. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H 1967-03 text/html http://www.dtic.mil/docs/citations/AD0669612 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0669612 en eng http://www.dtic.mil/docs/citations/AD0669612 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Test Facilities Equipment and Methods (*GLACIERS IMPURITIES) (*ICE ANTARCTIC REGIONS) PARTICLE SIZE PARTICLES STRATIGRAPHY PERIODIC VARIATIONS WELL LOGGING SEQUENCES(MATHEMATICS) CORRELATION TECHNIQUES SAMPLING DISTRIBUTION COMPUTER PROGRAMS DUST GREENLAND Text 1967 ftdtic 2016-02-18T21:00:51Z Greenland and Antarctica ice samples were analyzed for size distribution of the particlate content. Samples are from Little America V, age 800 yr; Byrd Station, age 1340 yr; Byrd Station, age 450 yr; and Site 2, Greenland, age 220 yr. Particle concentration is lower in the younger Byrd samples than in the older ones. Concentration was seen to vary cyclically with depth. Annual accumulation determined by peak to peak measurement on the dust concentration profiles compares favorably with that determined by surface stratigraphy. The results indicate that winter snow is dirtier, mean particle size changes as a result of relatively discrete addition of well sorted fallout to the log-normal distribution, and that annual accumulation of dust was about 8 times higher in Greenland than in Antarctica at the times represented by the samples studied. (Author) See also Part 1, AD-630 902. Text Antarc* Antarctic Antarctica Greenland Ice permafrost Defense Technical Information Center: DTIC Technical Reports database Antarctic Byrd Byrd Station ENVELOPE(-119.533,-119.533,-80.017,-80.017) Greenland Little America ENVELOPE(-164.050,-164.050,-78.667,-78.667) Little America V ENVELOPE(-162.367,-162.367,-78.317,-78.317) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Test Facilities Equipment and Methods (*GLACIERS IMPURITIES) (*ICE ANTARCTIC REGIONS) PARTICLE SIZE PARTICLES STRATIGRAPHY PERIODIC VARIATIONS WELL LOGGING SEQUENCES(MATHEMATICS) CORRELATION TECHNIQUES SAMPLING DISTRIBUTION COMPUTER PROGRAMS DUST GREENLAND |
spellingShingle |
Snow Ice and Permafrost Test Facilities Equipment and Methods (*GLACIERS IMPURITIES) (*ICE ANTARCTIC REGIONS) PARTICLE SIZE PARTICLES STRATIGRAPHY PERIODIC VARIATIONS WELL LOGGING SEQUENCES(MATHEMATICS) CORRELATION TECHNIQUES SAMPLING DISTRIBUTION COMPUTER PROGRAMS DUST GREENLAND Hamilton,Wayne L. MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES. |
topic_facet |
Snow Ice and Permafrost Test Facilities Equipment and Methods (*GLACIERS IMPURITIES) (*ICE ANTARCTIC REGIONS) PARTICLE SIZE PARTICLES STRATIGRAPHY PERIODIC VARIATIONS WELL LOGGING SEQUENCES(MATHEMATICS) CORRELATION TECHNIQUES SAMPLING DISTRIBUTION COMPUTER PROGRAMS DUST GREENLAND |
description |
Greenland and Antarctica ice samples were analyzed for size distribution of the particlate content. Samples are from Little America V, age 800 yr; Byrd Station, age 1340 yr; Byrd Station, age 450 yr; and Site 2, Greenland, age 220 yr. Particle concentration is lower in the younger Byrd samples than in the older ones. Concentration was seen to vary cyclically with depth. Annual accumulation determined by peak to peak measurement on the dust concentration profiles compares favorably with that determined by surface stratigraphy. The results indicate that winter snow is dirtier, mean particle size changes as a result of relatively discrete addition of well sorted fallout to the log-normal distribution, and that annual accumulation of dust was about 8 times higher in Greenland than in Antarctica at the times represented by the samples studied. (Author) See also Part 1, AD-630 902. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H |
format |
Text |
author |
Hamilton,Wayne L. |
author_facet |
Hamilton,Wayne L. |
author_sort |
Hamilton,Wayne L. |
title |
MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES. |
title_short |
MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES. |
title_full |
MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES. |
title_fullStr |
MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES. |
title_full_unstemmed |
MEASUREMENT OF NATURAL PARTICULATE FALLOUT ONTO HIGH POLAR ICE SHEETS. PART II. ANTARCTIC AND GREENLAND CORES. |
title_sort |
measurement of natural particulate fallout onto high polar ice sheets. part ii. antarctic and greenland cores. |
publishDate |
1967 |
url |
http://www.dtic.mil/docs/citations/AD0669612 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0669612 |
long_lat |
ENVELOPE(-119.533,-119.533,-80.017,-80.017) ENVELOPE(-164.050,-164.050,-78.667,-78.667) ENVELOPE(-162.367,-162.367,-78.317,-78.317) |
geographic |
Antarctic Byrd Byrd Station Greenland Little America Little America V |
geographic_facet |
Antarctic Byrd Byrd Station Greenland Little America Little America V |
genre |
Antarc* Antarctic Antarctica Greenland Ice permafrost |
genre_facet |
Antarc* Antarctic Antarctica Greenland Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0669612 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766251928943067136 |