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相关概念视频

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Precipitation Gravimetry

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Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
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The Earth’s hydrosphere includes all of the areas where the storage and movement of water occurs. Since water is the basis of all living processes, the cycling of water is extremely important to ecosystem dynamics.
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相关实验视频

Updated: Jul 15, 2025

In Situ Soil Moisture Sensors in Undisturbed Soils
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使用基于卫星的陆地储水数据:一篇评论

Vincent Humphrey1,2, Matthew Rodell3, Annette Eicker4

  • 1Department of Geography, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.

Surveys in geophysics
|September 29, 2023
PubMed
概括

卫星对陆地储水 (TWS) 的观测提供了对淡水资源的全球洞察力. 本综述阐明了GRACE TWS数据,它们的局限性,以及在水文学和气候科学中的应用.

关键词:
气候学 气候学 气候学格雷斯 (GRACE) 是一个恩典.地质测量是指地质测量.水文学的水文学遥感是一种远程传感.陆地储水系统是陆地储水系统.

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相关实验视频

Last Updated: Jul 15, 2025

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科学领域:

  • 地球系统科学 地球系统科学
  • 水文学的水文学
  • 气候科学 气候科学

背景情况:

  • 陆地储水 (TWS) 对地球的气候,生态系统和人类活动至关重要.
  • 自2002年以来,像GRACE这样的太空任务提供了全球TWS变化数据.
  • 现有的TWS数据集有局限性,对用户来说并不总是清楚.

研究的目的:

  • 提供GRACE TWS测量概念和数据产品的可访问概述.
  • 澄清与TWS数据相关的技术术语和概念.
  • 为用户提供有效数据利用和潜在陷的指导.

主要方法:

  • 审查GRACE任务数据处理和测量原则.
  • 主要概念和数据产品的插图.
  • 对数据使用和应用的建议的总结.

主要成果:

  • 概述GRACE TWS数据产品及其基础概念.
  • 确定常见的限制和技术术语.
  • 关于将TWS数据与其他数据集集集成的建议.

结论:

  • 通过对基于卫星的TWS数据的清晰理解,促进跨学科研究.
  • 通过解决数据局限性和促进正确使用来支持未来的研究.
  • 加强GRACE TWS数据在水文学和气候科学中的应用.