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Sample Design: Boise-IDFalls

Monitoring Project: BLM-NAMF

Sample Design: Boise-IDFalls
ID: 2554
State: Finalized
  • State: Finalized
  • Owner: Scott Miller
  • Spatial Design Category: Generalized Random Tessellation Stratified (GRTS)
  • Data Repository: <none>
  • Sites in Design: 40
  • Has Location Privacy: No

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The details of this Sample Design, including all the parameters used to generate it, are included below. Sample designs must belong to a Monitoring Project which may be associated with a Monitoring Program.

Description

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Sample Design Parameters


Start Year

2016

Monitoring Project


Protocols

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Photos

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Documents

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Map of Sites

Stratum Panel Occasion

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

Details of this master sample:



Frame

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 5,064 sites:

Criteria Group 1
           
  BLM District Is Equal To Idaho Falls District Office

Target Population

BLM perennial streams and rivers in the Idaho Falls district, ID


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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)
Attributes # Sites In Frame Frame Length (km) Stratum Attributes Panels
Stream_Order_Group Stratum Name Stratum Abbr. Default
Small Streams (1&2) 3775 0 Small Streams (1&2) S0 9
Large Streams (3&4) 919 0 Large Streams (3&4) S1 0
Rivers (5+) 370 0 Rivers (5+) S2 1
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: 5,064
Number of sites after generating the GRTS sample: 40
Number of oversamples: 30
Number of panels: 1
Number of strata: 3

Shapefile

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Distribution

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


  Schema   Attribute   Description

PROJCS["USA_Contiguous_Albers_Equal_Area_Conic_USGS_version",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["Latitude_Of_Origin",23.0],UNIT["Meter",1.0]]