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Snow and Firn Microstructure and Transport Properties: U. S. ITASE

Snow and Firn Microstructure and Transport Properties: U. S. ITASE
雪和冷杉的微观结构和传输特性:U. S. ITASE
批准号:
9814676
负责人:
Mary Albert
金额:
$18.69万
依托单位国家:
美国
项目类别:
Interagency Agreement
财政年份:
1999
资助国家:
美国
项目状态:
已结题
起止时间:
1999-07-01 至 2003-06-30

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中文摘要
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英文摘要
This award supports a project to measure snow and firn bulk properties and microstructure along the route of the U.S. International Trans-Antarctic Scientific Expedition (US ITASE) traverses in West Antarctica. These parameters are important because they control the air-snow-firn transport processes and thus the manner in which heat, vapor, and chemical species in air are incorporated into snow and polar firn. The objectives of the project are to obtain field measurements of near-surface (down to 2 meters) snow and firn properties, which include surface roughness, permeability, density, grain size, surface-to-volume ratio, and tortuosity. In addition microstructural measurements and measurements of the above properties will be measured in firn cores down to 20 meters back in the laboratory. These measurements will be used in a transport model to elucidate the nature of the air-snow-firn exchange and firnification process at the various sites along the U.S. ITASE traverse. Since many of the snow and firn properties also affect the interaction of radiation in different parts of the electromagnetic spectrum, these measurements will provide valuable ground truth to those efforts using remote sensing to map the spatial variations of snow, firn and ice properties.
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NNA Track 1: Innovations in Energy Technologies and Empowerment in Arctic Fishing Communities
  • 批准号:
    1927845
  • 项目类别:
    Standard Grant
  • 资助金额:
    $261.68万
  • 财政年份:
    2020
  • 负责人:
    Mary Albert
  • 依托单位:
Ice Drilling Program Office
  • 批准号:
    1836328
  • 项目类别:
    Cooperative Agreement
  • 资助金额:
    $1214.47万
  • 财政年份:
    2018
  • 负责人:
    Mary Albert
  • 依托单位:
Ice Drilling Program Office
  • 批准号:
    1327315
  • 项目类别:
    Cooperative Agreement
  • 资助金额:
    $1746.54万
  • 财政年份:
    2013
  • 负责人:
    Mary Albert
  • 依托单位:
Firn Metamorphism: Microstructure and Physical Properties
  • 批准号:
    0944078
  • 项目类别:
    Standard Grant
  • 资助金额:
    $36.85万
  • 财政年份:
    2010
  • 负责人:
    Mary Albert
  • 依托单位:
海外基金