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
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
voice; 1 (800) 661-2638 (Toll Free in Canada and USA.)
1 (819) 564-5698
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](https://catalogue.arctic-sdi.org/geonetwork/srv/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((-43 41.5,-43 84,-141 84,-141 41.5,-43 41.5)))
- 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
)
-
ESRI REST
(
10.7.1
)
Distributor
- 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
Overviews
![overview](https://gcgeo.gc.ca/geonetwork/srv/api/records/6d070120-3871-7c65-6258-85c615349803/attachments/2022-02-08%2010_33_27-Clipboard.png)
Spatial extent
N
S
E
W
![thumbnail](https://catalogue.arctic-sdi.org/geonetwork/srv/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((-43 41.5,-43 84,-141 84,-141 41.5,-43 41.5)))
Provided by
![logo](https://catalogue.arctic-sdi.org/geonetwork/srv/../images/logos/661b5f0b-d2bb-422a-814c-cfad48adc43c.png)
Associated resources
Not available