Abstract: The Alberta Vegetation Inventory (AVI) is a photo-based digital inventory developed to identify the type, extent and conditions of vegetation, where it exists and what changes are occurring. This dataset consolidates all available AVI into a single feature class.This dataset is produced for the Government of Alberta and is available to the general public.
Metadata:
File identifier:
3DBCFA02-E97A-4059-9414-1ED8E0700E80
Language:
Language Code:
eng
Character set:
Character set code:
utf8
Hierarchy level:
Scope code:
dataset
Metadata author:
Responsible party:
Organisation name:
Agriculture, Forestry and Rural Economic Development, Government of Alberta
Position name:
Reforestation, Inventory and Biometrics Section, Forest Stewardship and Trade Branch
Contact info:
Contact:
Phone:
Telephone:
Voice:
7804225229
Facsimile:
7804151509
Address:
Address:
Delivery point:
J.G. O'Donoghue Building, Suite 303
Delivery point:
7000 113 Street NW
City:
Edmonton
Administrative area:
AB
Postal code:
T6H 5T6
Country:
Country:
CA
Electronic mail address:
AF.FMB-GIS@gov.ab.ca
Hours of service:
08:15 to 16:30, Monday to Friday
Contact instructions:
This is the point of contact regarding the creation of, and characteristics of, metadata for the data set.
Queries about the creation and/or characteristics of the metadata submitted through facsimile or
electronic mail must include the salutation "Attention: Forest Resource Analysis Section, Forest
Management Branch, Forestry Division; Dataset: Alberta Vegetation Inventory (AVI) Crown". For
Distribution Information contact instructions, refer to the Distribution Information section of this
metadata record.
Role:
Role code:
publisher
Date stamp:
2022-02-23
Metadata standard name:
NAP - Metadata
Metadata standard version:
1.2
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Vector spatial representation:
Geometric objects:
Geometric objects:
Geometric object type:
Geometric object type code:
complex
Geometric object count:
619172
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Reference system:
Reference system identifier:
RS Identifier:
Code:
3400
Code Space:
EPSG
Version:
6.11(9.3.0.0)
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Data identification:
Citation:
Citation:
Title:
Alberta Vegetation Inventory (AVI) Crown
Alternate title:
Crown AVI
Date:
Date:
Date:
2017-09-18
Date type:
Date type code:
creation
Date:
Date:
Date:
2022-01-26
Date type:
Date type code:
publication
Cited responsible party:
Responsible party:
Organisation name:
Agriculture, Forestry and Rural Economic Development, Government of Alberta
Position name:
Reforestation, Inventory and Biometrics Section, Forest Stewardship and Trade Branch
Contact info:
Contact:
Phone:
Telephone:
Voice:
7804225229
Facsimile:
7804151509
Address:
Address:
Delivery point:
J.G. O'Donoghue Building, Suite 303
Delivery point:
7000-113 Street
City:
Edmonton
Administrative area:
Alberta
Postal code:
T6H 5T6
Country:
Country:
CA
Electronic mail address:
AF.FMB-GIS@gov.ab.ca
Hours of service:
08:15-16:30 Monday through Friday
Contact instructions:
This is the point of contact regarding the creation of, and characteristics of, the data set.
Queries about the creation and/or characteristics of the data set submitted through facsimile or
electronic mail must include the salutation "Attention: Reforestation, Inventory and Biometrics
Section, Forest Stewardship and Trade Branch; Dataset: Alberta Vegetation Inventory (AVI)
Crown". For Distribution Information contact instructions, refer to the Distribution Information
section of this metadata record. For Metadata Information contact instructions, refer to the
Metadata Reference Information section of this metadata record.
Role:
Role code:
originator
Abstract:
The Alberta Vegetation Inventory (AVI) is a photo-based digital inventory developed to identify the type,
extent and conditions of vegetation, where it exists and what changes are occurring. This dataset
consolidates all available AVI into a single feature class.This dataset is produced for the Government of
Alberta and is available to the general public.
Purpose:
The AVI provides detailed information to assist in the decision-making process for forest management planning,
wildfire management, wildlife habitat classification and integrated resource management activities. AVI
standards were developed to ensure data consistency. This dataset consolidates all AVI Crown into a single
feature class.
Status:
Progress code:
completed
Point of contact:
Responsible party:
Organisation name:
Agriculture, Forestry and Rural Economic Development, Government of Alberta
Position name:
Reforestation, Inventory and Biometrics Section, Forest Stewardship and Trade Branch
Contact info:
Contact:
Phone:
Telephone:
Voice:
7804225229
Facsimile:
7804151509
Address:
Address:
Delivery point:
J.G. O'Donoghue Building, Suite 303
Delivery point:
7000-113 Street NW
City:
Edmonton
Administrative area:
Alberta
Postal code:
T6H 5T6
Country:
Country:
CA
Electronic mail address:
AF.FMB-GIS@gov.ab.ca
Hours of service:
08:15 to 16:30, Monday to Friday
Contact instructions:
This is the point of contact regarding the creation of, and characteristics of, the data set. Queries
about the creation and/or characteristics of the data set submitted through facsimile or electronic
mail must include the salutation "Attention: Reforestation, Inventory and Biometrics Section, Forest
Stewardship and Trade Branch; Dataset: Alberta Vegetation Inventory (AVI) Crown". For Distribution
Information contact instructions, refer to the Distribution Information section of this metadata
record. For Metadata Information contact instructions, refer to the Metadata Reference Information
section of this metadata record.
Role:
Role code:
pointOfContact
Resource maintenance:
Maintenance information:
Maintenance and update frequency:
Maintenance frequency code:
asNeeded
Descriptive keywords:
Keywords:
Keyword:
Alberta, Canada
Type:
Keyword type code:
place
Descriptive keywords:
Keywords:
Keyword:
Vegetation
Keyword:
Vegetation inventory
Keyword:
Forest inventory
Keyword:
Forest cover
Type:
Keyword type code:
theme
Descriptive keywords:
Keywords:
Keyword:
Live Data and Maps
Thesaurus name: uuidref: 723f6998-058e-11dc-8314-0800200c9a66
Resource constraints:
Legal constraints:
Access constraints:
Restriction code:
otherRestrictions
Other constraints:
Your use of this information will be governed by the terms of the Open Government Licence - Alberta, in
force as of the date you accessed the information, found at https://open.alberta.ca/licence
Resource constraints:
Legal constraints:
Use constraints:
Restriction code:
license
Other constraints:
To access the data you must agree to the terms of the Open Government Licence - Alberta.
Resource constraints:
Legal constraints:
Use limitation:
Distribution Liability: Under the terms of the Open Government Licence - Alberta, the Information is
licensed as is, and the Information Provider excludes all representations, warranties, obligations, and
liabilities, whether express or implied, to the maximum extent permitted by law. The Information
Provider is not liable for any errors or omissions in the Information, and will not under any
circumstances be liable for any direct, indirect, special, incidental, consequential, or other loss,
injury or damage caused by its use or otherwise arising in connection with this licence or the
Information, even if specifically advised of the possibility of such loss, injury or damage.
Resource constraints:
Security constraints:
Classification:
Classification code:
unclassified
User note:
Public/Unrestricted
Classification system:
Government of Alberta Data and Information Security Classification
Handling description:
https://imtpolicy.sp.alberta.ca/standards/pdf/Data-and-Information-Security-Classification-Standard.pdf
Aggregation Info:
AggregateInformation:
Aggregate Data Set Name:
Citation:
Title:
Alberta Vegetation Inventory Interpretation Standards ver 2.1.1
Date:
Date:
Date:
2021-04-07
Date type:
Date type code:
revision
Edition:
AVI ver 2.1.1
Cited responsible party:
Responsible party:
Organisation name:
Agriculture, Forestry and Rural Economic Development, Government of Alberta
Role:
Role code:
originator
Cited responsible party:
Responsible party:
Organisation name:
Agriculture, Forestry and Rural Economic Development, Government of Alberta
Contact info:
Contact:
Address:
Address:
Delivery point:
Edmonton, Alberta
Role:
Role code:
publisher
Series:
Series:
Name:
Alberta Vegetation Inventory Standards and Data Model Documents
Association Type:
Association type code:
crossReference
Language:
Language Code:
eng
Character set:
Character set code:
utf8
Topic category:
Topic category code:
biota
Extent:
Extent:
Geographic element:
Geographic bounding box:
West bound longitude:
-120
East bound longitude:
-110
South bound latitude:
49
North bound latitude:
60
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Distribution:
Distribution format:
Format:
Name:
ESRI File Geodatabase
Version:
10.7.1
File decompression technique:
ZIP
Distributor:
Distributor:
Distributor contact:
Responsible party:
Organisation name:
Alberta Environment and Parks, Government of Alberta
Position name:
Provincial Geospatial Centre
Contact info:
Contact:
Phone:
Telephone:
Voice:
7804277374
Facsimile:
7804220712
Address:
Address:
Delivery point:
9820 - 106 Street NW
Delivery point:
14th Floor Oxbridge Place
City:
Edmonton
Administrative area:
Alberta
Postal code:
T5K2J6
Country:
Country:
CA
Electronic mail address:
AEP.Data@gov.ab.ca
Hours of service:
0815 to 1630 Monday to Friday
Contact instructions:
This is the point of contact regarding distribution of the data set. Queries about distribution of
the data set submitted through facsimile or electronic mail must include the salutation
"Attention: Data Distribution Unit, Provincial Geospatial Centre; Dataset: Alberta Vegetation
Inventory (AVI) Crown".
Role:
Role code:
distributor
Transfer options:
Digital transfer options:
Units of distribution:
MB
Transfer size:
550
Online:
Online Resource:
Linkage:
URL:
https://extranet.gov.ab.ca/srd/geodiscover/srd_pub/biota/AlbertaVegetationInventoryCrown.zip
Protocol:
FTP
Name:
Alberta Vegetation Inventory Crown (FGDB)
Description:
FGDB containing Alberta Vegetation Inventory Crown and Post Inventory Harvest Areas dataset (ZIP)
Function:
Online function code:
download
Transfer options:
Digital transfer options:
Online:
Online Resource:
Linkage:
URL:
https://www.alberta.ca/vegetation-inventory-standards.aspx
Protocol:
HTTPS
Name:
Forest vegetation inventory standards
Description:
Summary of forest and vegetation inventories standards and datasets for the Government of Alberta
Function:
Online function code:
information
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Data quality:
Scope:
Scope:
Hierarchy level:
Scope code:
dataset
Report:
Conceptual consistency:
Measure description:
Users must be aware and understand that these data were collected over many years and to various
standards. The year of the photography (PHOTO_YR) can be used to determine the vintage of the inventory.
Users must exercise caution when using the older AVI data.
Evaluation method type code:
Evaluation method type code:
directInternal
Result:
missing
Report:
Completeness omission:
Measure description:
Four main fields have been added to the database (in addition to those required under the AVI 2.1.1
standards): PHOTO_YR (year of photography), ARIS (the Alberta Regeneration Information System opening
number for cutblocks, DIST_PTRN (overstorey canopy pattern distribution) and LID_UND (Light Detection
and Ranging - detected understorey). Every effort was made to populate all additional fields, but some
information will be missing on older datasets.
Result:
missing
Report:
Absolute external positional accuracy:
Measure description:
Users must be aware and understand that this data has been processed and therefore may be different from
the original datasets. In the compilation process, vertices were removed, gaps and overlaps were fixed,
and slivers were eliminated. A possible result of this processing may be subtle shifts in the linework.
The geometry has been checked and repaired. The horizontal accuracy of the original AVI data is +/- 20
metres.
Result:
missing
Lineage:
Lineage:
Statement:
This dataset is a compilation of the original blocks of AVI Crown data collected using aerial photography
dating between 1987 and 2019. A variety of standards was used to collect the original blocks of data
that were then merged. This dataset is considered to be valid for use at a scale of approximately 1:20
000. Note that the AVI Post Inventory Cutblocks for Crown Management Units is available as a separate
feature class, Alberta Vegetation Inventory (AVI) Post Inventory Cutblocks, that is distributed with the
AVI Crown data. The extent of the AVI Post Inventory Cutblocks dataset does not exactly coincide with
the extent of the AVI Crown dataset.
Process step:
Process step:
Description:
The feature class has been processed through the tiled polygon simplification process in order to
reduce the number of vertices used to represent a polygon. Experience has shown that many datasets
have been over digitized and contain more vertices than needed to represent the polygon based on the
level of accuracy for the dataset (normally AVI). A 1 metre tolerance (maximum allowable offset) has
been used to perform the generalization through the Simplify Polygon tool using the Point Remove
option. The POINT_REMOVE is a fast, simple algorithm that reduces a polygon boundary quite
effectively by removing redundant points, such as over digitized vertices. For example, the original
C5 dataset had 25,852,264 vertices and the dataset after the simplification had 3,391,916 vertices.
Date and time:
2012-01-27T00:00:00
Processor:
Responsible party:
Organisation name:
Agriculture, Forestry and Rural Economic Development, Government of Alberta
Position name:
Forest Management Branch, Forestry Division, Alberta Agriculture and Forestry. Government of Alberta
Contact info:
Contact:
Phone:
Telephone:
Voice:
7804225229
Facsimile:
7804270084
Address:
Address:
Delivery point:
9920 - 108 Street NW
Delivery point:
8th Floor, Great West Life Building
City:
Edmonton
Administrative area:
Alberta
Postal code:
T5K 2M4
Country:
Country:
CA
Electronic mail address:
AF.FMB-GIS@gov.ab.ca
Hours of service:
08:15 to 16:30, Monday to Friday
Role:
Role code:
processor
Process step:
Process step:
Description:
This process involves dissolving AVI polygons based on the attribute values for neighbouring polygons.
This is normally done to remove the township lines from an AVI dataset. The process builds a string
representation of each AVI attribute. This string is compared to the contents of a python dictionary
structure and if that attribute already exists in the dictionary then the key for the dictionary
entry is assigned to the polygon. This means that all polygons that have the same attribute content
will receive the same identifying attribute identifier. A dissolve is then performed using the
identifier and once the dissolve is complete the attributes are added back to the polygons again
based on the identifier. In order to obtain better results through the dissolve some AVI attributes
are not considered when building attributes keys. The interpreter initials and TPR attributes are
not used. This means that you cannot depend that these values will be the same for the before and
after dissolve results. The reason for excluding these attributes is that they are commonly
different on either side of the township lines and if considered the township line would not be
dissolved.
Date and time:
2012-01-27T00:00:00
Processor:
Responsible party:
Organisation name:
Agriculture, Forestry and Rural Economic Development, Government of Alberta
Position name:
Resource Analysis Section, Forest Management Branch, Forestry Division
Contact info:
Contact:
Phone:
Telephone:
Voice:
7804225229
Facsimile:
7804270084
Address:
Address:
Delivery point:
9920 - 108 Street NW
Delivery point:
8th Floor, Great West Life Building
City:
Edmonton
Administrative area:
Alberta
Postal code:
T5K 2M4
Country:
Country:
CA
Electronic mail address:
AF.FMB-GIS@gov.ab.ca
Hours of service:
08:15 to 16:30, Monday to Friday
Role:
Role code:
processor
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Maintenance information:
Maintenance and update frequency:
Maintenance frequency code:
asNeeded
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