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.

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

Begin date: 1985

End date: 2013

Reference system identifier: EPSG:3978

Distribution format

ESRI REST ( 10.7.1 )
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 Composite 1985-2013 ( ESRI REST: Image Service )
Web Service;ESRI REST;eng

OnLine resource: AVHRR Composite 1985-2013 ( ESRI REST: Image Service )
Web Service;ESRI REST;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: 2022-02-09T14:27:31

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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