Global Change Master Directory (GCMD)

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Tactile Maps of Canada

Entry ID: Canada_NRCan_TactileMapsCanada

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Summary

Abstract: Tactile maps are maps with Braille inscriptions and elevated features for the
visually impaired. The collection includes tactile maps for education,
mobility, transportation and tourism as well as sample audio-tactile city
approach and city core maps to download and print or use online. The maps of
Canada were developed by the Mapping Services Branch in cooperation with ...

Related URL

Link: GET DATA

Description: GeoConnections Discovery Portal. Canada's IDN Node.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 84.0

S: 41.5

E: -43.0

W: -141.0

Data Set Citation

Dataset Originator/Creator: Government of Canada, Natural Resources Canada, Geomatics Canada, Mapping Services Branch

Dataset Title: Tactile Maps of Canada

Online Resource: http://www.collectionscanada.gc.ca/accessinfo/005003-5200-e.html

Temporal Coverage

Start Date: 2000-01-01

Stop Date: 2004-12-31

Location Keywords

CONTINENT > NORTH AMERICA > CANADA

CONTINENT > NORTH AMERICA > CANADA > ALBERTA

Science Keywords

HUMAN DIMENSIONS > BOUNDARIES > ADMINISTRATIVE DIVISIONS

HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT > LAND MANAGEMENT > LAND USE CLASSES

ISO Topic Category

IMAGERY/BASE MAPS/EARTH COVER

Platform

AQUA > Earth Observing System, AQUA

Instrument

MODIS > Moderate-Resolution Imaging Spectroradiometer

Spectroradiometers

Project

EOSDIS > Earth Observing System Data Information System

ESIP > Earth Science Information Partners Program

CWIC > CEOS WGISS Integrated Catalog

Quality Quality indicators for MODIS snow data can be found in the following places:
* AutomaticQualityFlag and the ScienceQualityFlag metadata objects and their corresponding explanations: AutomaticQualityFlagExplanation and ScienceQualityFlagExplanation located in the CoreMetadata.0 global attributes
... * Custom local attributes associated with each SDS, for example, snow cover
* Snow Spatial QA field.

These quality indicators are generated during production or in post-production scientific and quality checks of the data product. For more information on local and global attributes, go to one of the following links:
* MOD10C1 and MYD10C1 Local Snow Cover Attributes, Version 5
* MOD10C1 and MYD10C1 Global Snow Cover Attributes, Version 5

The AutomaticQualityFlag is automatically set according to conditions for meeting data criteria in the snow mapping algorithm. In most cases, the flag is set to either Passed or Suspect, and in rare instances, it may be set to Failed. Suspect means that a significant percentage of the data were anomalous and that further analysis should be done to determine the source of anomalies. The AutomaticQualityFlagExplanation contains a brief message explaining the reason for the setting of the AutomaticQualityFlag. The ScienceQualityFlag and the ScienceQualityFlagExplanation maybe updated after production, either after an automated QA program is run or after the data product is inspected by a qualified snow scientist. Content and explanation of this flag are dynamic so it should always be examined if present in the external metadata file. The algorithm tests for a variety of anomalous conditions and sets the pixel value accordingly if such conditions are detected. Summary statistics about missing data, the percent cloud cover, the percent of good or other quality data, and snow cover percent are calculated and placed in the metadata for each product. The Snow Spatial QA data field provides additional information on algorithm results for each pixel within a spatial context, and is used as a measure of usefulness for snow-cover data. The QA information tells if algorithm results were nominal, abnormal, or if other defined conditions were encountered for a pixel (Riggs, Hall, and Salomonson 2006). The NASA Goddard Space Flight Center: MODIS Land Quality Assessment Web site provides updated quality information for each product.

Ancillary Keywords

Antarctic

Arctic

Data Set Progress

IN WORK

Data Center

NSIDC Distributed Active Archive Center

Data Center URL: http://nsidc.org/daac/index.html

Data Center Personnel
Name: NSIDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

National Snow and Ice Data Center

Data Center URL: http://nsidc.org

Data Center Personnel
Name: NSIDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA