EVALUATING THE HYDROGEOCHEMICAL RESPONSE OF SPRINGS USING PHASE-PLANE PLOTS AND SINGULAR SPECTRUM ANALYSIS Metadata

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Title

  • Main Title EVALUATING THE HYDROGEOCHEMICAL RESPONSE OF SPRINGS USING PHASE-PLANE PLOTS AND SINGULAR SPECTRUM ANALYSIS

Creator

  • Author: Newman, B.
    Creator Type: Personal
  • Author: Duffy, C.
    Creator Type: Personal
  • Author: Hickmott, D.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: US Department of Energy (United States)

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)

Date

  • Creation: 2001-04

Language

  • English

Description

  • Content Description: An ongoing study is focused on understanding the hydrology and geochemistry of three contaminated, perennial, semi-arid zone springs at a high explosives production facility at Los Alamos National Laboratory, in northern New Mexico, USA. Springflow time series were examined using singular spectrum analysis (SSA) to identify the important time-scales affecting flow in the springs. SSA results suggest that springflow has two dominant patterns: a series of low-frequency modes which follow the seasonal and longer-term climate conditions at the site, and a large number of higher frequency modes which display the characteristic ''red noise'' spectrum related to local, short-term weather conditions. Phase-plane plots of {delta}{sup 18}O and spring discharge suggest that high flow conditions are dominated by snowmelt and summer monsoon inputs while low flow conditions can be affected by mixing of fast and slow flow components causing wide variations in {delta}{sup 18}O values. The analysis is being used for development of an efficient strategy for sampling design for environmental monitoring of contaminants that respond to multiple time scales.
  • Physical Description: 219 Kilobytes pages

Subject

  • Keyword: Monitoring
  • Keyword: Hydrology
  • Keyword: Chemical Explosives
  • Keyword: Monsoons
  • Keyword: Geothermal Legacy
  • Keyword: Production
  • Keyword: Sampling
  • Keyword: Geochemistry
  • Keyword: Climates
  • STI Subject Categories: 15 Geothermal Energy
  • Keyword: Weather Geothermal Legacy
  • Keyword: Design

Source

  • Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: LA-UR-01-1922
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 777453
  • Archival Resource Key: ark:/67531/metadc723745
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