image description

Sample Design: AEM overlapping CHaMP Sites 2016

Sample Design: AEM overlapping CHaMP Sites 2016
ID: 2570
State: Finalized
  • State: Finalized
  • Owner: Colin Riordan
  • Spatial Design Category: Systematic, Non-Stratified
  • Data Repository: <none>
  • Snapshot: 6/1/2016
  • Snapshot by: Colin Riordan
  • Sites in Design: 2
  • Has Location Privacy: No

Expand All | Collapse All

The details of this Sample Design, including all the parameters used to generate it, are included below. Sample designs must belong to a Study Design.



Sample Design Parameters

Start Year


Study Design






Map of Sites

Stratum Panel Occasion

Area of Inference


AOI Notes


This sample design is based on master sample: Columbia Basin Master Sample

Details of this master sample:


This sample design started with an initial frame of 551,046 sites, based on its master sample. The criteria (based on the master sample's attributes) were then used to refine the sample frame down to 11,943 sites:

Criteria Group 1
  Columbia Basin Is Equal To Yes AND
  Is Target in CHaMP Is Equal To 1

Target Population

Chinook and Steelhead ESUs above Bonneville Dam. 



Below is the complete list of sample sites that were drawn using the criteria for this sample design.

Number of sites before generating the GRTS sample: 11,943
Number of sites after generating the GRTS sample: 2
Number of oversamples: 1
Number of panels: 1
Number of strata: 1




The histogram charts below show the distribution of this sample design’s sites across the various panels and strata.

  Schema   Attribute   Description