floristic sectors

Data format: Shapefile

File or table name: floristic sectors

Theme keywords: Bioclimate subzone, vegetation, map, Image, NDVI, temperature, CAVM

Abstract: Description of Arctic bioclimate subzone categories A-E As one moves from north to south across the Arctic, the amount of warmth available for plant growth increases. The mean July temperatures are near 0C on the northernmost islands. At these temperatures, plants are at their metabolic limits, and small differences in the total amount of summer warmth make large differences in the amount of energy available for maintenance, growth, and reproduction. Warmer summer temperatures cause the size, horizontal cover, abundance, productivity and variety of plants to increase (see Table 2 CAVM). Woody plants and sedges are absent in Subzone A, where mean July temperatures are less than 3C. Woody plants first occur in Subzone B (mean July temperatures about 3-5 C) as prostrate (creeping) dwarf shrubs, and increase in stature to hemiprostrate dwarf shrubs (<15 cm tall) in Subzone C (mean July temperatures about 5-7C, erect dwarf shrubs (<40 cm tall) in Subzone D (mean July temperature about 7-9C), and low shrubs (40-200 cm tall) in Subzone E (mean July temperature about 9-12C. At treeline, where the mean July temperatures are between 10 and 12C, woody shrubs up to 2 meters tall are abundant. The number of plants in local floras available to form plant communities increases from fewer than 50 species in the coldest parts of the Arctic to as many as 500 species near treeline.

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Originators: Alaska Geobotany Center


*Title:
floristic sectors
*File or table name: floristic sectors


Publication date: 20031210
*Geospatial data presentation form: vector digital data


Other citation details:
Suggested Citation: Alaska Geobotany Center 2003. Circumpolar Arctic AVHRR Image


Online linkage: http://www.arcticatlas.org/theme/cavm_metadata.pdf


Description:
Abstract:
Description of Arctic bioclimate subzone categories A-E
As one moves from north to south across the Arctic, the amount of warmth available for plant growth increases. The mean July temperatures are near 0C on the northernmost islands. At these temperatures, plants are at their metabolic limits, and small differences in the total amount of summer warmth make large differences in the amount of energy available for maintenance, growth, and reproduction. Warmer summer temperatures cause the size, horizontal cover, abundance, productivity and variety of plants to increase (see Table 2 CAVM).  Woody plants and sedges are absent in Subzone A, where mean July temperatures are less than 3C. Woody plants first occur in Subzone B (mean July temperatures about 3-5 C) as prostrate (creeping) dwarf shrubs, and increase in stature to hemiprostrate dwarf shrubs (<15 cm tall) in Subzone C (mean July temperatures about 5-7C, erect dwarf shrubs (<40 cm tall) in Subzone D (mean July temperature about 7-9C), and low shrubs (40-200 cm tall) in Subzone E (mean July temperature about 9-12C. At treeline, where the mean July temperatures are between 10 and 12C, woody shrubs up to 2 meters tall are abundant. The number of plants in local floras available to form plant communities increases from fewer than 50 species in the coldest parts of the Arctic to as many as 500 species near treeline.

Purpose:
Vegetation greenness is calculated as: NDVI = (NIR - R) / (NIR + R), where NIR is the spectral reflectance in the AVHRR near-infrared channel (0.725-1.1 5, channel 2) where light-reflectance from the plant canopy is dominant, and R is the reflectance in the red channel (0.58 to 0.68 5, channel 1), the portion of the spectrum where chlorophyll absorbs maximally.  The resulting image shows the Arctic with minimum snow and cloud cover.  The selected pixels were then printed as a false-color CIR image (RGB = ch. 2, ch. 1, ch. 1).

*Language of dataset: en


Time period of content:
Time period information:
Single date/time:
Calendar date: 2003

Currentness reference:
publication date

Status:
Progress: Complete
Maintenance and update frequency: None planned

Spatial domain:
Bounding coordinates:
West bounding coordinate:
East bounding coordinate:
North bounding coordinate:
South bounding coordinate:

Keywords:
Theme:
Theme keywords: Bioclimate subzone, vegetation, map, Image, NDVI, temperature, CAVM
Theme keyword thesaurus: none

Place:
Place keywords: United States, cicumpolar arctic, Iceland, Norway, Canada, Greenland, Russia, Svalbard, Alaska
Place keyword thesaurus: none

Access constraints: none
Use constraints:
Data provided by the Alaska Geobotany Center are copyright protected under the provisions of a Creative Commons Attribution-NonCommercial-ShareAlike License (http://creativecommons.org/licenses/by-nc-sa/1.0/). Materials may be freely downloaded, reprinted and redistributed for non-commercial use. Reproduction and redistribution of the materials on this web site, including derivative works, shall give credit to the Alaska Geobotany Center and remain subject to the above license. Any web pages that use this material shall contain a link pointing to the Alaska Geobotany Center home page (http://www.geobotany.uaf.edu/).

Point of contact:
Contact information:
Contact organization primary:
Contact organization: Alaska Geobotany Center
Contact position: GIS & Remote Sensing Manager


Contact address:
Address type: mailing and physical address
Address:
Institute of Arctic Biology
Address:
University of Alaska Fairbanks
City: Fairbanks
State or province: AK
Postal code: 99775
Country: USA

Contact voice telephone: 907.474.1540


Contact electronic mail address: fnham@uaf.edu


Data set credit:
(AVHRR) data were obtained from theUSGS Global AVHRR 10-day composite data.  (http://edcdaac.usgs.gov/1KM/1kmhomepage.asp). Glaciers and oceans were masked out using information from the Digital Chart of the World (ESRI 1993).

*Native dataset format: Shapefile
*Native data set environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535


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Data Quality Information:


Attribute accuracy:
Attribute accuracy report:
The map was reviewed by the CAVM mapping team.

Logical consistency report:
Coverage topology was checked using the NODEERRORS and LABELERRORS commands.

Completeness report:
complete

Positional accuracy:
Horizontal positional accuracy:
Horizontal positional accuracy report:
Polygon boundaries were overlaid on the false-color infrared basemap and visually inspected.

Lineage:
Source information:
Source citation:
Citation information:
Originators: USGS Alaska Geographic Science Office


Title:
AVHRR imagery


Publication date: 1993-1995


Source scale denominator: 1000000
Type of source media: CD_ROM
Source citation abbreviation:
AVHRR
Source contribution:
False-color infrared basemap, NDVI

Source time period of content:
Time period information:
Multiple dates/times:
Single date/time:
Calendar date: 1993
Single date/time:
Calendar date: 1995

Source currentness reference:
ground condition

Source information:
Source citation:
Citation information:
Originators: USGS EROS Data Center


Title:
Global 30 Arc-Second Elevation Data Set


Publication date: 2003


Online linkage: http://edcdaac.usgs.gov/gtopo30/gtopo30.asp


Type of source media: download
Source citation abbreviation:
DEM
Source contribution:
Digital elevation model

Source time period of content:
Time period information:
Multiple dates/times:
Single date/time:
Calendar date: 1993
Single date/time:
Calendar date: 1995

Source currentness reference:
ground condition

Source information:
Source citation:
Citation information:
Originators: Environmental Systems Research Institute, Inc. Redlands, CA


Title:
Digital Chart of the World, Sept. 1993 Edition 1


Publication date: 1993


Type of source media: map
Source citation abbreviation:
DCW
Source contribution:
coastline and glacier masks

Source time period of content:
Time period information:
Multiple dates/times:
Single date/time:
Calendar date: 1993
Single date/time:
Calendar date: 1995

Source currentness reference:
ground condition

Process step:
Process description:
Initial bioclimate subzone boundaries were taken from the Panarctic Flora (PAF) initiative (Elvebakk et al. 1999, see CAVM for additional references).  The boundaries were adjusted by the mappers for individual countries, and then moved to follow existing vegetation polygon boundaries.  The vegetation polygons are drawn at a much finer resolution than the bioclimate subzone boundaries, so little information was lost in this process.  Most areas are mapped with broad bands of bioclimate subzones, but Svalbard subzones were mapped in more detail, showing the changes that occur from the coast inland, and so that section of the map contains many small subzone polygons.

Process date: 2003


Process step:
Process description:
Canada - PAF boundaries adjusted by W.A. Gould to match data from Edlund (pers.comm.) and personal knowledge.  Greenland - Boundaries drawn by F.J.A. Danils.  Iceland - all subzone E.  Norway - Boundaries drawn by A. Elvebakk. Russia - PAF boundaries modified by B.A. Yurtsev, especially Yakutia and Chukotka.  The data from Russia included a sixth subzone (stlanik areas), and subdivided the subzones into mountainous and non-mountainous areas.  There are a number of boreal inclusion areas mapped within Chukotka.  The boundaries of these polygons are much more detailed than the generalized zonal boundaries in the rest of Russia. United States - PAF boundaries modified in details by D.A. Walker and M.K. Raynolds, mostly along southern edge of Subzone E (see tree line metadata).

Process date: 2003


Process step:
Process description:
Greenland - Boundaries drawn by F.J.A. Danils.

Process date: 2003


Process step:
Process description:
Iceland - all subzone E.

Process date: 2003


Process step:
Process description:
Norway - Boundaries drawn by A. Elvebakk.

Process date: 2003


Process step:
Process description:
Russia - PAF boundaries modified by B.A. Yurtsev, especially Yakutia and Chukotka.  The data from Russia included a sixth subzone (stlanik areas), and subdivided the subzones into mountainous and non-mountainous areas.  There are a number of boreal inclusion areas mapped within Chukotka.  The boundaries of these polygons are much more detailed than the generalized zonal boundaries in the rest of Russia.

Process date: 2003


Process step:
Process description:
United States - PAF boundaries modified in details by D.A. Walker and M.K. Raynolds, mostly along southern edge of Subzone E (see tree line metadata).

Process date: 2003


Process step:
Process description:
Metadata imported.

Process date: 2006


Source used citation abbreviation:
C:\DOCUME~1\jtomsen\LOCALS~1\Temp\xmlDC3E.tmp


Process step:
Process description:
Metadata imported.

Process date: 2006


Source used citation abbreviation:
C:\DOCUME~1\jtomsen\LOCALS~1\Temp\xmlDC42.tmp


Process step:
Process description:
Metadata imported.

Source used citation abbreviation:
C:\DOCUME~1\jtomsen\LOCALS~1\Temp\xmlDC44.tmp


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Spatial Data Organization Information:


*Direct spatial reference method: Vector


Point and vector object information:
SDTS terms description:
*Name: floristic sectors
*SDTS point and vector object type: G-polygon
*Point and vector object count: 0

ESRI terms description:
*Name: floristic sectors
*ESRI feature type: Simple
*ESRI feature geometry: Polygon
*ESRI topology: FALSE
*ESRI feature count: 0
*Spatial index: FALSE
*Linear referencing: FALSE


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Entity and Attribute Information:


Detailed description:
*Name: floristic sectors


Entity type:
*Entity type label: floristic sectors
*Entity type type: Feature Class
*Entity type count: 0
Entity type definition:
Entity type definition source:

Attribute:
Attribute label: FID
Attribute definition:
Internal feature number.
Attribute definition source:
ESRI

Attribute domain values:
Unrepresentable domain:
Sequential unique whole numbers that are automatically generated.


Attribute:
Attribute label: Shape
Attribute definition:
Feature geometry.
Attribute definition source:
ESRI

Attribute domain values:
Unrepresentable domain:
Coordinates defining the features.


Attribute:
Attribute label: Id
Attribute definition:


Attribute definition source:



*Attribute type: Number
*Attribute width: 6


Attribute domain values:
Unrepresentable domain:


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Distribution Information:


Distributor:
Contact information:
Contact organization primary:
Contact organization: Alaska Geobotany Center
Contact position: GIS and Remote Sensing Manager


Contact address:
Address type: Physical and Mailing Address
Address:
Alaska Goebotany Center
Address:
University of Alaska Fairbanks
City: Fairbanks
State or province: AK
Postal code: 99775
Country: USA

Contact voice telephone: 907.474.1540


Contact electronic mail address: fnham@uaf.edu


Resource description: Downloadable Data


Distribution liability:
none

Standard order process:
Digital form:
Digital transfer information:
Format name: Compressed Shape File
Transfer size: 0.000
*Dataset size: 0.000

Digital transfer option:
Online option:
Computer contact information:
Network address:
Network resource name: http://data.arcticatlas.org/

Fees: none


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Metadata Reference Information:


*Metadata date: 20060202


*Language of metadata: en


Metadata contact:
Contact information:
Contact organization primary:
Contact person: REQUIRED: The person responsible for the metadata information.
Contact organization: Alaska Geobotany Center
Contact position: GIS & Remote Sensing Manager


Contact address:
Address type: mailing and physical address
Address:
Institute of Arctic Biology
Address:
University of Alaska Fairbanks
City: Fairbanks
State or province: AK
Postal code: 99775
Country: USA

Contact voice telephone: 907.474.1540


Contact electronic mail address: fnham@uaf.edu


*Metadata standard name: FGDC Content Standards for Digital Geospatial Metadata
*Metadata standard version: FGDC-STD-001-1998
*Metadata time convention: local time


Metadata extensions:
Online linkage: http://www.esri.com/metadata/esriprof80.html
Profile name: ESRI Metadata Profile

Metadata extensions:
Online linkage: http://www.esri.com/metadata/esriprof80.html
Profile name: ESRI Metadata Profile

Metadata extensions:
*Online linkage: http://www.esri.com/metadata/esriprof80.html
*Profile name: ESRI Metadata Profile

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