Dissolved noble gas groundwater sampling

Knowledge graph centered on Dissolved noble gas groundwater sampling with 68 nodes and 140 connections. Top connected: Rocky Mountain Biological Laboratory, groundwater storage dynamics, Crested Butte, East River, streamflow.

Method synopsis

Collection of dissolved noble gases from groundwater wells using copper tubes with down-hole pumps and back-pressure valves to prevent degassing during sample collection.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Constraining Bedrock Groundwater Residence Times in a Mountain System With Environmental Tracer Observations and Bayesian Uncertainty Quantification (2023), Water Resources Research. Implementations in other papers (listed below) may differ.

1. Well sampling preparation
   Collected groundwater samples from three wells (PLM1, PLM6, PLM7) located along a ~130m transect on the PLM hillslope. PLM1 is the upslope well at 10m depth with screen between 6.3-7.2m bls. PLM6 is at the toe of hillslope at 10m depth with screen between 6.1-9.1m bls. PLM7 is between PLM1 and PLM6 at 70m depth with screen over entire length.
   Quantities: 3 wells total, 130m transect length, depths of 10m (PLM1, PLM6) and 70m (PLM7), specific screen intervals as notedDuration: Sampling conducted between 5 May and 7 May 2021Conditions: Spring conditions in mountain environment
   Equipment: down-hole pumps, back-pressure valves
2. Noble gas sample collection
   Collected dissolved noble gases (He, Ne, Ar, Kr, Xe) using standard copper tube method with down-hole pumps and back-pressure valves to prevent degassing. Samples purged three borehole volumes and monitored steady field parameters before collection.
   Quantities: Noble gas samples collected from all 3 wellsDuration: Collection after purging and stabilizationConditions: Field sampling with degassing prevention measures
   Equipment: copper tubes, down-hole pumps, back-pressure valves

Typical Equipment

• copper tubes
• down-hole pumps
• back-pressure valves

Output Measurements

• dissolved He, Ne, Ar, Kr, Xe concentrations

Papers Using This Protocol (1)

Places Where Used