image description
Sample Design: NV_NO_STANDARD_2019
  • ID: 16329
  • State: Finalized
  • Owner: Nicole Cappuccio
  • Spatial Design Category: Generalized Random Tessellation Stratified (GRTS)
  • Sites in Design: 256
  • Has Location Privacy: No
  • Data Repository: <none>
  • Version History: v1.0 Finalized (4/16/2019)

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


This Design was developed as part of the AIM strategy to assess Land Use Plan/ Resource Management Plan effectiveness. Includes only points on all perennial BLM streams and rivers in the Elko BLM District office. Previously assessed points  from the NV statewide and WRSA projects 2013-2015 will be used as a user sampled to ensure spatial balance of new points aroung locations we have visited previously. These location include non-target (e.g., dry sites), inaccessible, and sampled sites. See the AIM strategy to understand our rejection criteria (reason a point is not sampled). 

Sample Design Parameters

Start Year


Initiation Year


Retirement Year

Study Plan

BLM AIM Assessment, Inventory, and Monitoring (AIM) of Wadeable Lotic Systems v1.0

Data Repositories






Map of Sites

  • Stratum
  • Panel
  • Occasion

Area of Inference


AOI Notes


This sample design is based on master sample: Bureau of Land Management Lotic

Details of this master sample:


This sample design started with an initial frame of 67,033 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 2,795 sites:

Criteria Group 1
  BLM District Is Equal To Elko District

Target Population

All perennial streams and rivers on BLM land in the Elko district office. 

Below is a list of User Samples from which this design is drawing sites.

Panel designs can help address sampling objectives by increasing the total number of samples at a lower overall cost. A common panel structure involves one or more panels with a high revisit frequency (e.g. an “Annual” panel), and other panels with a lower revisit frequency (e.g. a three year “Rotating” panel).

Panel Sampling Occasion (1 Year(s))
# Panel Name Panel Abbr. 1

This design uses the following attributes to create the stratification shown below. Each row in the table represents a stratum. This design’s panels are also shown in the table, even if it uses only a single, default panel.

Sample Attributes
  Attribute   Values In Frame
  Stream_Order_Group 3 Values: Large Streams (3&4), Rivers (5+), Small Streams (1&2)
  ADMU_ADMU_NAME 2 Values: Tuscarora Field Office, Wells Field Office
Attributes # Sites In Frame Frame Length (km) Stratum Attributes Panels
Stream_Order_Group ADMU_ADMU_NAME Stratum Name Stratum Abbr. 2019
Large Streams (3&4) Tuscarora Field Office 463 0 Large Streams (3&4)-Tuscarora Field Office T-LS 14
Large Streams (3&4) Wells Field Office 481 0 Large Streams (3&4)-Wells Field Office W-LS 17
Rivers (5+) Tuscarora Field Office 267 0 Rivers (5+)-Tuscarora Field Office T-RO 6
Rivers (5+) Wells Field Office 224 0 Rivers (5+)-Wells Field Office W-RO 7
Small Streams (1&2) Tuscarora Field Office 813 0 Small Streams (1&2)-Tuscarora Field Office T-SS 28
Small Streams (1&2) Wells Field Office 587 0 Small Streams (1&2)-Wells Field Office W-SS 33
TOTAL 0 km    

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: 2,795
Number of sites after generating the GRTS sample: 256
Number of oversamples: 151
Number of panels: 1
Number of strata: 6




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

  Schema   Attribute   Description


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