• Arctic SDI catalogue
  •  
  •  
  •  

Daily snow cover fraction maps over Canada of the period of 2006-2010 from 1km resolution NOAA AVHRR imagery.

This dataset corresponds to daily snow cover percentage at 1km resolution grid over land areas of Canada from 2006-2010. The data are subsampled by 4km to reduce data volumes and considering the geolocation uncertainty of the input satellite imagery. The daily maps are generated by assimilation of daily cloud screened NOAA AVHRR satellite imagery and Canadian Meteorological Centre (CMC) snow depth analysis snow depth and density fields within an off-line version of the CMC daily snow depth model. The snow depth model is modified to include snowpack reflectance model and a surface radiative transfer scheme that relates vegetation and snowpack reflectance to top-of-canopy bi-directional reflectance. A logistic vegetation phenology model is used to parameterize temporal dynamics of canopy leaf area index. A per-pixel particle filter with a 30 day moving window is applied to assimilation observations corresponding to 1km resolution visible band directional reflectance and normalized difference vegetation index and 24km CMC daily snow depth and monthly snow density fields. The assimilation is forced using daily air temperature and precipitation fields. Validation of the datasets has been performed by comparison to MODIS snow cover maps and in-situ snow depth stations across Canada. Validation suggests similar accuracy to MODIS snow cover products over relatively flat terrain. Validation over mountainous regions is ongoing.

Simple

Date ( RI_367 )
2015-05-19
Date ( RI_366 )
2015
RI_413
  Government of Canada; Natural Resources Canada;Strategic Policy and Innovation Sector, Canada Centre for Remote Sensing
voice; 1 (819) 564-4857
voice; 1 (800) 661-2638 (Toll Free in Canada and USA.)
1 (819) 564-5698
Presentation form
mapDigital;carteNumérique RI_391
Name
Daily snow cover fraction maps over Canada of the period of 2006-2010 from 1km resolution NOAA AVHRR imagery.
Issue identification
2015
Status
onGoing; enContinue RI_596
RI_414
  Government of Canada; Natural Resources Canada; Strategic Policy and Innovation Sector, Canada Centre for Remote Sensing
Physical; 560; Rochester Street , Ottawa , Ontario , K1A 0E4 , Canada
voice; 1 (819) 564-4857
voice; 1 (800) 661-2638 (Toll Free in Canada and USA.)
1 (819) 564-5698
Maintenance and update frequency
daily; quotidien RI_533
Keywords ( RI_528 )
  • snow cover
  • snow areal extent
Keywords ( RI_525 )
  • Canada
  • Alberta
  • British Columbia
  • Manitoba
  • New Brunswick
  • Newfoundland and Labrador
  • Northwest Territories
  • Nova Scotia
  • Nunavut
  • Ontario
  • Prince Edward Island
  • Québec
  • Saskatchewan
  • Yukon
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Snow
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
otherRestrictions; autresRestrictions RI_609
Other constraints
A license agreement accompanies all value-added satellite products distributed via the NEODF. In addition to the terms and conditions which apply (see: http://data.gc.ca/eng/open-government-licence-canada ), none of these products may be redistributed. Please direct interested users to apply for NEODF accounts. To comply with Section 3.0, you must appropriately acknowledge the Canada Center for Mapping and Earth Observation, a part of Natural Resources Canada, as the source of these products when you use them in support of research, analysis, reporting, decisions, operations or any other undertaking. By adding these products to your cart, you agree to all the above requirements.
Spatial representation type
grid; grille RI_636
Metadata language
zxx
Topic category
  • Environment
N
S
E
W
thumbnail


Begin date
2006
End date
2010
Reference system identifier
http://www.epsg-registry.org / EPSG:3978 / 8.5.1
Distribution format
  • ESRI REST ( 10.7.1 )

Distributor

RI_412
  Government of Canada; Natural Resources Canada; Strategic Policy and Innovation Sector, Federal Geospatial Platform
Fees
Free for download
Transfer size
1472184
OnLine resource
Daily snow cover fraction maps over Canada of the period of 2006-2010 ( ESRI REST: Image Service )

Web Service;ESRI REST;eng

OnLine resource
Daily snow cover fraction maps over Canada of the period of 2006-2010 ( ESRI REST: Image Service )

Web Service;ESRI REST;fra

File identifier
6d070120-3871-7c65-6258-85c615349803 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2022-02-17T15:24:13
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 Remote Sensing
voice; 1 (819) 564-4857
voice; 1 (800) 661-2638 (Toll Free in Canada and USA.)
1 (819) 564-5698
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords


Provided by

logo

Associated resources

Not available


  •  
  •  
  •