Multi-Spectral Clear-Sky Composites of AVHRR Channels (1 - 5) Over Canada at 1 km Spatial Resolution and 10-Day Intervals Since January, 1985

The Canadian long term satellite data record (LTDR) derived from 1-km resolution Advanced Very High Resolution Radiometer (AVHRR) data was produced by the Canada Center for Remote Sensing (CCRS). Processing included: geolocation, calibration, and compositing using Earth Observation Data Manager (Latifovic et al. 2005), cloud screening (Khlopenkov and Trishchenko, 2006), BRDF correction (Latifovic et. al., 2003), atmosphere and other corrections as described in Cihlar et. al. (2004). For temporal analysis of vegetation cross-sensor correction of Latifovic et al. (2012) is advised. Data collected by the AVHRR instrument on board the National Oceanic and Atmospheric Administration (NOAA) 9,11,14,16,17,18 and 19 satellites were used to generate Canada-wide 1-km 10-day AVHRR composites. Data are available starting in 1985. It is important to note that there are three types of AVHRR sensors: (i) AVHRR-1 flown onboard TIROS-N, NOAA-6, NOAA-8, and NOAA-10; (ii) AVHRR-2 flown onboard NOAA-7, NOAA-9, NOAA-11, NOAA-12, and NOAA-14; and (iii) AVHRR-3 currently operational onboard NOAA-15, NOAA-16, NOAA-17, NOAA-18 and NOAA-19. The AVHRR-1 has four channels, AVHRR-2 has five channels and the AVHRR-3 has six channels, although only five channels of AVHRR-3 can be operational at any one time. As such, channels 3A (1.6 m) and 3B (3.7 m) work interchangeably. The processing procedure was designed to minimize artefacts in AVHRR composite images. There are thirty six 10-day image composites per year. The following three processing levels are provided: P1) top of atmosphere reflectance and brightness temperature, P2) reflectance at surface and surface temperature and P3) reflectance at surface normalized to a common viewing geometry (BRDF normalization). The processing level P1 and P2 are provided for all 36 composites while level P3 is provided for 21 composites from April – October.

Simple

Date ( RI_366 )
2013-06-01
Date ( RI_367 )
2018-02-16
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
Presentation form
imageDigital; imageNumérique RI_389
Name
Multi-Spectral Clear-Sky Composites of AVHRR Channels (1 - 5) Over Canada at 1 km Spatial Resolution and 10-Day Intervals Since January, 1985
Issue identification
2013
Purpose
These data provide the longest record of 10 day spectral measurements that can be used for studies of processes and trends at local to Canada wide scales. Data are available from 1985 to present and will be continued to approximately 2020 with AVHRR sensors flown on the Metop series of satellites. The high temporal resolution of the dataset allows for evaluation of seasonality and phenology properties of the landscape within and between years. The length of the record provides the means to monitor changes in land surface conditions over time. These data can be used for land cover mapping, change detection, fire detection, biophysical parameter retrieval such as LAI, snow and lake ice cover detection, spring leaf-out determination, among other parameters. Derived parameters are often used in ecosystem process models to study air quality, water storage, climate change, crop yield, and biochemical cycling.
Status
completed; complété RI_593
RI_414
  Natural Resources Canada;Strategic Policy and Innovation Sector, Canada Centre for Remote Sensing
Physical; 560; Rochester Street , Ottawa , Ontario , K1A 0E4 , Canada
Maintenance and update frequency
unknown; inconnu RI_543
Keywords ( RI_528 )
  • Earth Sciences
  • Hydrosphere
  • Ground Water
  • Surface water
  • Hydropattern
  • Rivers
  • Rivers
  • Land surface
  • Land Use
  • Land Cover
  • Landscapes
  • Water surface
  • Ice
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 )
  • Earth sciences
  • Surface water
  • Ice
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.
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
Date ( RI_367 )
2004
RI_418
  Cihlar, J., Latifovic, R., Chen J., Trishchenko, A., Du, Y., Fedosejevs, G., and Guindon, B.
Name
Natural Resources Canada, Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing, Ottawa, ON, Canada.
Association Type
crossReference; référenceCroisée RI_428
Initiative Type
program; programme RI_445
Date ( RI_367 )
2006
RI_418
  Khlopenkov, K.V., and Trishchenko, A.P.
Name
Natural Resources Canada, Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing, Ottawa, ON, Canada.
Association Type
crossReference; référenceCroisée RI_428
Initiative Type
program; programme RI_445
Date ( RI_367 )
2003
RI_418
  Latifovic, R., Cihlar, J., and Chen, J.
Name
Natural Resources Canada, Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing, Ottawa, ON, Canada.
Association Type
crossReference; référenceCroisée RI_428
Initiative Type
program; programme RI_445
Date ( RI_367 )
2005
RI_418
  Latifovic, R., Trishchenko, A., Chen, J., Park, W., Khlopenkov, K., Fernandes, R., Pouliot, D., Ungureanu, C., Luo, Y., Wang, S., Davidson, A., and Cihlar, J.
Name
Natural Resources Canada, Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing, Ottawa, ON, Canada.
Association Type
crossReference; référenceCroisée RI_428
Initiative Type
program; programme RI_445
Date ( RI_367 )
2012
RI_418
  Latifovic, R., Pouliot, D., Dillabaugh, C.
Name
Natural Resources Canada, Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing, Ottawa, ON, Canada.
Association Type
crossReference; référenceCroisée RI_428
Initiative Type
program; programme RI_445
Date ( RI_367 )
1994
RI_418
  Teillet, P., and Holben, B.
Name
Natural Resources Canada, Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Canada Centre for Remote Sensing, Ottawa, ON, Canada.
Association Type
crossReference; référenceCroisée RI_428
Initiative Type
program; programme RI_445
Spatial representation type
grid; grille RI_636
Metadata language
eng; CAN
Topic category
  • Imagery base maps earth cover
N
S
E
W
thumbnail


Begin date
1985
End date
2013
Reference system identifier
EPSG:3979
Distribution format
  • COG ( unknown )

  • WMS ( 1.3.0 )

Distributor

RI_412
  Government of Canada; Natural Resources Canada;Strategic Policy and Innovation Sector, Federal Geospatial Platform
Fees
Free for download
Transfer size
1500
OnLine resource
AVHRR monthly composite time series of Canada ( HTTPS )

Web Service;WMS;eng,fra

OnLine resource
AVHRR Monthly Composite Time Series of Canada - SpatioTemporal Asset Catalog (STAC) Application Programming Interface (API) ( HTTPS )

API;JSON;zxx

OnLine resource
AVHRR Monthly Composite Time Series of Canada - SpatioTemporal Asset Catalog (STAC) browser ( HTTPS )

Dataset;COG;eng,fra

Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B01_RETOA
Name
Band-interleaved, unsinged integer
Descriptor
Top of atmosphere reflectance band 1 (0.58 - 0.68 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B01_RESURF_SMAC
Name
Band-interleaved, unsinged integer
Descriptor
Reflectance at surface, atmospherically corrected band 1 (0.58 - 0.68 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B01_RESURF_BRDF
Name
Band-interleaved, unsinged integer
Descriptor
Reflectance at surface, atmospherically corrected and BRDF normalized band 1 (0.58 - 0.68 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B02_RETOA
Name
Band-interleaved, unsinged integer
Descriptor
Top of atmosphere reflectance band 2 (0.725 - 1.1 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B02_RESURF_SMAC
Name
Band-interleaved, unsinged integer
Descriptor
Reflectance at surface, atmospherically corrected band 2 ((0.725 - 1.1 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B02_RESURF_BRDF
Name
Band-interleaved, unsinged integer
Descriptor
Reflectance at surface, atmospherically corrected and BRDF normalized band 2 ((0.725 - 1.1 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
NDVI_RETOA
Name
Band-interleaved, unsinged integer
Descriptor
Normalized Difference Vegetation Index from top of atmosphere reflectance bands 1 and 2, scaled range 0 to 20000, scaling factor = stored value/10000-1, fill value = 30000
Bits per value
16
Scale factor
-999
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
NDVI_RESURF_SMAC
Name
Band-interleaved, unsinged integer
Descriptor
Normalized Difference Vegetation Index from surface reflectance bands 1 and 2, scaled range 0 to 20000, scaling factor = stored value/10000-1, fill value = 30000
Bits per value
16
Scale factor
-999
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
NDVI_RESURF_BRDF
Name
Band-interleaved, unsinged integer
Descriptor
Normalized Difference Vegetation Index from surface reflectance and BRDF normalized bands 1 and 2, scaled range 0 to 20000, scaling factor = stored value/10000-1, fill value = 30000
Bits per value
16
Scale factor
-999
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B03A_RETOA
Name
Band-interleaved, unsinged integer
Descriptor
Top of atmosphere reflectance Band 3A (1.59 - 1.63 micrometer) only applicable to AVHRR-3, scaled range 0 to 65535
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B03B_RATOA
Name
Band-interleaved, unsinged integer
Descriptor
Top of atmosphere radiance (W/m2/sr/nm) band 3B (3.55 - 3.93 micrometer), scaled range 0 to 1000, sensor specific scaling see product specification documentation
Bits per value
16
Scale factor
1
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B04_BTTOA
Name
Band-interleaved, unsinged integer
Descriptor
Brightness temperature top of atmosphere band 4 (10.3 – 11.3 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
B05_BTTOA
Name
Band-interleaved, unsinged integer
Descriptor
Brightness temperature top of atmosphere band 5 (11.5 – 12.5 micrometer), scaled range 0 to 65535
Bits per value
16
Scale factor
0.001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
SURF_TEMP
Name
Band-interleaved, unsinged integer
Descriptor
Surface temperature, scaled range 0 to 65535
Bits per value
16
Scale factor
0.001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
Sun_Zenith
Name
Band-interleaved, unsinged integer
Descriptor
Sun zenith in degrees, scaled range 0 to 18000
Bits per value
16
Scale factor
0.01
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
Satellite_Zenith
Name
Band-interleaved, unsinged integer
Descriptor
Satellite zenith in degrees, scaled range 0 to 6900
Bits per value
16
Scale factor
0.01
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
Sun_Azimuth
Name
Band-interleaved, unsinged integer
Descriptor
Sun azimuth in degrees, scaled range 0 to 36000
Bits per value
16
Scale factor
0.01
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
Satellite_Azimuth
Name
Band-interleaved, unsinged integer
Descriptor
Satellite Azimuth in degrees, scaled range 0 to 36000
Bits per value
16
Scale factor
0.01
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
REL_TIME
Name
Band-interleaved, unsinged integer
Descriptor
Days relative to start of month containing composite period (expressed in decimal days using UT time). EXAMPLE: Given a composite based on data with starting day within July 2002 and a REL_TIME for a pixel of 18,290, the start date of the month containing the composite (using the convention [YYYY MM DD.DDD]) begins at [2002 07 01.000] and the time the pixel was observed at is [2002 07 (01.000 + 18.290)] =[2002 07 19.290].
Bits per value
16
Scale factor
0.0001
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
CLOUDMASK
Name
Band-interleaved, unsigned byte
Descriptor
Bit 0: 0 - water, 1 - land; bit 1: 0 - day, 1 - night; bit 2: 0 - snow/ice free, 1 - snow/ice; bit 3: 0 - shadow free, 1 - shadow; bit 4: 0 and bit 3 = 1 - thin cloud shadow, 1 - Thick cloud shadow; bit 5: 0 - data present, 1 - data missing; bit 6: reserved; bit 7: 0 - pixel location inside GCP convex hull, 1 - pixel location outside convex hull
Bits per value
8
Scale factor
1
Attribute description
Band-interleaved
Content type
http://www.fgdc.gov/nap/metadata/register/registerItems.html#RI_492
Name
CLOUDINDEX
Name
Band-interleaved, unsigned byte
Descriptor
Aggregated rating that reflects the degree of pixel cloud contamination. The higher the value, the higher is the probability of cloud contamination (0 means no data)
Bits per value
8
Scale factor
1
File identifier
9045136a-d6e7-a825-491d-ee5dc77a2620 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2026-09-29T13:58:40
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
Physical; 560; Rochester Street , Ottawa , Ontario , K1A 0E4 , Canada
 
 

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