• Arctic SDI catalogue
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FRI: Diameter (quadratic mean)

Diameter is an expression of the average diameter (cm) of trees at breast-height (1.3 m), calculated using a quadratic mean (QM_DBH). Available here as a diamter raster (GeoTIF) with a 20 m pixel resolution.

Download: HereThe Saskatchewan Ministry of Environment, Forest Service Branch, has developed a forest resource inventory (FRI) which meets a variety of strategic and operational planning information needs for the boreal plains. Such needs include information on the general land cover, terrain, and growing stock (height, diameter, basal area, timber volume and stem density) within the provincial forest and adjacent forest fringe. This inventory provides spatially explicit information as 10 m or 20 m raster grids and as vectors polygons for relatively homogeneous forest stands or naturally non-forested areas with a 0.5 ha minimum area and a 2.0 ha median area.  Diameter (QM_DBH) is an expression of the average diameter (cm) of trees at breast-height (1.3 m), calculated using a quadratic mean whereby individual trees are weighted in proportion to their basal area. QM_DBH is available here as a color-mapped 16-bit unsigned integer raster grid in GeoTIFF format with a 20 m pixel resolution. An ArcGIS Pro layer file (*.lyrx) is supplied for viewing QM_DBH data in the following 5 cm categories. Domain: [NULL, 0…60]. RANGE LABEL RED GREEN BLUE 0 <= QM_DBH < 3 0 NA NA NA 3 <= QM_DBH < 8 5 63 81 181 8 <= QM_DBH < 13 10 68 115 144 13 <= QM_DBH < 18 15 72 149 108 18 <= QM_DBH < 23 20 92 180 78 23 <= QM_DBH < 28 25 157 202 70 28 <= QM_DBH < 33 30 222 224 63 33 <= QM_DBH < 38 35 255 220 48 38 <= QM_DBH < 43 40 255 190 27 43 <= QM_DBH < 48 45 255 160 5 48 <= QM_DBH < 53 50 252 129 15 53 <= QM_DBH < 58 55 248 98 34 58 <= QM_DBH <= 60 60 244 67 54 For more information, see the Forest Inventory Standard of the Saskatchewan Environmental Code, Forest Inventory Chapter.

Simple

Date ( RI_367 )
2021-03-05
Date ( RI_366 )
2021-03-05
RI_414
  Government of Saskatchewan; Government of Saskatchewan; Saskatchewan Ministry of Environment, Forest Service Branch - ( )
Status
onGoing; enContinue RI_596
Maintenance and update frequency
unknown; inconnu RI_543
Keywords ( RI_528 )
  • quadratic mean diameter
  • diameter
  • dbh
  • qm_dbh
  • raster
  • forestry
  • forest
  • forest inventory
  • forest resource inventory
  • fri
  • forest service
  • ministry of environment
  • environment
  • government of saskatchewan
  • saskatchewan
  • canada
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Government information
Use limitation
Standard Unrestricted Use Data License (Version 2.0) - Saskatchewan (https://gisappl.saskatchewan.ca/Html5Ext/Resources/GOS_Standard_Unrestricted_Use_Data_Licence_v2.0.pdf)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
grid; grille RI_636
Metadata language
eng; CAN
Metadata language
fra; CAN
Topic category
  • Environment
  • Biota
Begin date
0001-01-01
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Reference system identifier
unknown / unknown / unknown
Distribution format
  • HTML ( unknown )

RI_414
  Government of Saskatchewan; Government of Saskatchewan; Saskatchewan Ministry of Environment, Forest Service Branch - ( )
OnLine resource
original metadata (http://geohub.saskatchewan.ca) ( HTTPS )

Dataset;HTML;eng

File identifier
a16669c5-ef44-be28-90da-93e2260e03bf XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-02-04
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
HNAP ISO:19115 - 2003
RI_414
  Government of Saskatchewan; Government of Saskatchewan; Saskatchewan Ministry of Environment, Forest Service Branch - ( )
 
 

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