Japan (STA) Postdoctoral Program: Snowpack Structure Data Set in Japan for Remote Sensing Snow Hydrology

日本（STA）博士后项目：日本遥感雪水文积雪结构数据集

基本信息

批准号：
8903098
负责人：
Rand Decker
金额：
$ 0.41万
依托单位：
University of Colorado at Boulder
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1989
资助国家：
美国
起止时间：
1989-11-01 至 1991-04-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8903098&HistoricalAwards=false
关键词：
Japan STA Postdoctoral Program Snowpack

项目摘要

This award will provide supplementary support to enable Dr. Rand Decker of the University of Colorado to conduct collaborative research for six months with Dr. Tsutomu Nakamura of the National Research Center for Disaster Prevention, Institute of Snow and Ice Studies, Niigata, Japan. They will survey the state of the art in ground based snow structure data collection techniques in Japan, and examine methods and algorithms for microwave remote sensing of the water-equivalent of snow. The considerable snowpack structure data that is available in Japan will be incorporated into a data base for the snow hydrology research community. Experiments on the interaction of microwave signals with snowpack structures characteristic of various periods during the winter season will be performed and correlated with the known properties of the snowpack. Remote sensing of snowpack liquid content is not yet an independent experimental technique since sensing data must be correlated with the grain size within the snowpack in order to obtain usable information on liquid content. In addition, both grain size and grain morphology of snowpack change over the course of a winter. Dr. Decker's experience in the area of snow avalanche hazard forecasting--which depends on snowpack structure--will complement the experience of the collaborating laboratory in the development of techniques for determining liquid content of the snowpack, from space.

该奖项将为科罗拉多大学的 Rand Decker 博士与日本新泻冰雪研究所国家防灾研究中心的 Tsutomu Nakamura 博士提供为期六个月的合作研究提供补充支持。他们将调查日本地面雪结构数据收集技术的最新技术，并研究雪水当量的微波遥感方法和算法。日本现有的大量积雪结构数据将被纳入雪水文学研究界的数据库中。将进行微波信号与冬季不同时期的积雪结构特征相互作用的实验，并将其与已知的积雪特性相关联。积雪液体含量的遥感还不是一种独立的实验技术，因为感测数据必须与积雪内的颗粒尺寸相关，以获得有关液体含量的可用信息。此外，积雪的颗粒大小和颗粒形态在冬季都会发生变化。德克尔博士在雪崩灾害预报领域的经验（取决于积雪结构）将补充合作实验室在开发从太空确定积雪液体含量的技术方面的经验。