Tree Canopy Cover for the Circumpolar Taiga-Tundra Ecotone: 2000-2005

Metadata Updated: November 5, 2019

This data set provides a map of selected areas with defined tree canopy cover over the circumpolar taiga-tundra ecotone (TTE). Canopy cover was derived from the 500-meter MODIS Vegetation Continuous Fields (VCF) product as averaged over six years from 2000-2005 and processed as described in Ranson et al. (2011). This process identified patches of low tree canopy cover which are indicative of the transition from forest to tundra and differentiate the circumpolar taiga-tundra ecotone for the 2000-2005 period. The TTE is the Earth's longest vegetation transition zone and stretches for more than 13,400 km around Arctic North America, Scandinavia, and Eurasia. In Eurasia, the map extends from 60 degrees N to 70 degrees N, and in North America from 50 degrees N to 70 degrees N, excluding Baffin Island in northeastern Canada and the Aleutian Peninsula in southwestern Alaska. Note that for this product, taiga is being used one and the same as boreal forest.This circumpolar TTE area was classified according to VCF tree canopy cover.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date August 1, 2018
Metadata Updated Date November 5, 2019

Metadata Source

Harvested from NASA Data.json

Graphic Preview

The Tundra-Taiga Ecotone (TTE) is the earth's longest vegetation transition zone and stretches for more than 13,400 km around Arctic North America, Scandinavia, and Eurasia.

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date November 5, 2019
Publisher ORNL_DAAC
Unique Identifier C179126605-ORNL_DAAC
Maintainer
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Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Ranson, K.J., P.M. Montesano, and R.F. Nelson. 2014. Tree Canopy Cover for the Circumpolar Taiga-Tundra Ecotone: 2000-2005. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1218
Graphic Preview Description The Tundra-Taiga Ecotone (TTE) is the earths longest vegetation transition zone and stretches for more than 13,400 km around Arctic North America, Scandinavia, and Eurasia.
Graphic Preview File https://daac.ornl.gov/VEGETATION/guides/TTE_FIGURE1.png
Harvest Object Id c3131202-8be1-4528-9a1d-1087bead0c8e
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2014-05-08
Homepage URL https://doi.org/10.3334/ORNLDAAC/1218
Language en-US
Metadata Type geospatial
Data Last Modified 2019-04-15
Program Code 026:001
Source Datajson Identifier True
Source Hash 7ae5891203c476f09da6044428139036c98ad406
Source Schema Version 1.1
Spatial -180.0 50.0 180.0 70.0
Temporal 2000-01-01T00:00:00Z/2005-12-31T23:59:59Z
Category Vegetation, NACP, geospatial

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