Probability of the annual minimum snow and ice (MSI) presence over Canada

Snow and ice are important hydrological resources. Their minimum spatial extent here referred to as annual minimum snow/ice (MSI) cover, plays a very important role as an indicator of long-term changes and baseline capacity for surface water storage. The MSI probability is derived from sequence of seventeen 10-day clear-sky composites corresponding to April, 1 to September, 20 warm period for each year since 2000. Data from Moderate Resolution Imaging Spectroradiometer (MODIS) on Terra satellite for the period since 2000 have been processed with the special technology developed at the Canada Centre for Remote Sensing (CCRS) as described in Trishchenko, 2016; Trishchenko et al., 2016; 2009, 2006, Khlopenkov and Trishchenko, 2008, Luo et al., 2008. The presence of snow or ice is determined for each pixel of the image based on snow/ice scene identification procedure and the probability if computed for the entire warm season as a ratio of number of snow/ice flags to the total number of pixels available (=< 17). The minimum snow and ice extent can be derived from the probability map by applying a certain threshold.

References:

TRICHTCHENKO, A.P., 2016: Probability maps of the annual minimum snow and ice (MSI) presence over April,1 to September, 20 period since 2000 derived from MODIS 250m imagery over Canada and neighbouring regions. Data format description. CCRS, NRCan. 4pp.

Simple

Date ( RI_366 )
2018-02-28
Date ( RI_368 )
2021-02-24
Date ( RI_367 )
2020-04-02
RI_414
  Government of Canada; Natural Resources Canada;Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing - Dr. Alexander P. Trichtchenko ( Research Scientist )
6-C9, 560 Rochester Street , Ottawa , Ontario , K1A 0E4 ,
613-759-1446
613-759-6344
Presentation form
mapDigital;carteNumérique RI_391
Status
onGoing; enContinue RI_596
Maintenance and update frequency
annually; annuel RI_539
Keywords ( RI_528 )
  • snow cover
  • ice cover
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( Theme )
  • Satellites
  • Remote sensing
  • Climate change
  • Ice
  • Snow
  • Glaciers
  • Ice caps
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
grid; grille RI_636
Metadata language
eng
Metadata language
fre
Character set
utf8; utf8 RI_458
Topic category
  • Climatology, meteorology, atmosphere
Begin date
2000-04
N
S
E
W
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Reference system identifier
http://www.epsg-registry.org / EPSG:3978 /
Distribution format
  • TIFF ( N/A )

  • Flat raster binary ( N/A )

RI_412
  Government of Canada; Natural Resources Canada;Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Federal Geospatial Platform - ( )
1-800-661-2638
819-564-5698
OnLine resource
Data format description - Version 4 ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Data format description - Version 3 ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Data format description - Version 4 ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Probability of the annual minimum snow and ice (MSI) presence over Canada (GeoTIFF) – Version 4 – 2000 and beyond ( HTTPS )

Dataset;TIFF;zxx

OnLine resource
Probability of the annual minimum snow and ice (MSI) presence over Canada (Flat raster binary, IMG) – Version 4 – 2000 and beyond ( HTTPS )

Dataset;Flat raster binary;zxx

OnLine resource
Data format description - Version 3 ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Probability of the annual minimum snow and ice (MSI) presence over Canada (Flat raster binary, IMG) – Version 3 – 2000 to 2016 ( HTTPS )

Dataset;Flat raster binary;zxx

OnLine resource
Probability of the annual minimum snow and ice (MSI) presence over Canada (GeoTIFF) – Version 3 – 2000 to 2016 ( HTTPS )

Dataset;TIFF;zxx

File identifier
808b84a1-6356-4103-a8e9-db46d5c20fcf XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2021-02-25T19:43:03
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Natural Resources Canada;Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing - Dr. Alexander P. Trichtchenko ( Research Scientist )
6-C9, 560 Rochester Street , Ottawa , Ontario , K1A 0E4 ,
613-759-1446
613-759-6344
 
 

Overviews

overview
large_thumbnail
overview
large_thumbnail_fre

Spatial extent

N
S
E
W
thumbnail


Keywords

Government of Canada Core Subject Thesaurus
Climate change Glaciers Ice Ice caps Remote sensing Satellites Snow

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Associated resources

Not available