FIDUCEO: Advanced Very-High-Resolution Radiometer (AVHRR ) Climate Data Record for Aerosol Optical Depth, V1.0, 2003 -2012
The Fidelity and uncertainty in climate data records from Earth Observations (FIDUCEO) projcet Advanced Very-High-Resolution Radiometer (AVHRR ) Climate Data Record for Aerosol Optical Depth (AOD) dataset covers Europe and North Africa over land. It was inferred from AVHRR/3 instruments on board the NOAA-16 and NOAA-18 satellites.
The dataset is provided on 3 processing levels: superpixels (L2B: 12x12 km2at nadir), gridded (1°x 1°) daily (L3 daily) and monthly (L3 monthly). The original lowest processing level (on selected dark field pixels) is not provided to users, but can be made available on request. The product contains the best AOD estimate but also a more detailed information on different aerosol types (most likely AOD value based on a multi-model ensemble climatology of the aerosol type and a 36 member ensemble of AOD values for a wide range of aerosol types spanning a realistic range in the atmosphere). A user can also process an application with all 36 ensemble members and then calculate the spread of the application results. Note that AOD values on the lowest processing level can be (slightly) negative reflecting radiometric calibration uncertaintiesand keeping un-cut AOD distributions.
The products contain on all levels sophisticated and detailed estimates of total AOD uncertainties propagated from the input L1B products and the retrieval algorithm through all levels of the processing chain. These total uncertainties can be directly used for data assimilation or to constrain a confidence interval around the AOD solutions. AOD uncertainties are also kept separated into the (relevant) different parts with different correlation structures, so that a user can conduct averaging and uncertainty propagation as suitable for the intended applications. Uncertainties also include separate values for the dominant effects (reflectance inversion, albedo estimation, aerosol type, cloud masking); also estimates of a sampling uncertainty (due to missing pixels from the cloud masking or from failed inversions) are contained.
More information including a report on the datset and scientific background is availible in the documentation section.
Simple
- Date (Publication)
- 2019-11-18T11:10:20
- Date (Creation)
- 2019-11-18T11:10:20
- Identifier
- Centre for Environmental Data Analysis (CEDA) / 1326447659e34bc3ba8042041ca0546b
- Maintenance and update frequency
- notPlanned Not planned
- Update scope
- dataset Dataset
- Keywords
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- FIDUCEO
- Uncertainty
- AVHRRR
- Climate data record
- Aerosol Optical Depth
- GEMET - INSPIRE themes, version 1.0
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- orthoimagery
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Public data: access to these data is available to both registered and non-registered users.
- Use constraints
- otherRestrictions Other restrictions
- Spatial representation type
- grid Grid
- Metadata language
- EnglishEnglish
- Topic category
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- Imagery base maps earth cover
- Begin date
- 2003-01-01T00:00:00
- End date
- 2012-12-31T00:00:00
- Unique resource identifier
- WGS 84
- Distribution format
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The files are CF compliant netCDF version4 . For full information please see the format specification in the documentation section.
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The files are CF compliant netCDF version4 . For full information please see the format specification in the documentation section.
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- OnLine resource
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CEDA Data Catalogue Page
Detail and access information for the resource
- OnLine resource
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DOWNLOAD
Download Data
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L2 and L3 processing codebase used to generate the AVHRR climate data record (CDR) for aerosol optical depth (AOD) over land
No further details.
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FIDUCEO Training Materials
No further details.
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FIDUCEO User Tools
No further details.
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Metrology Cookbook
No further details.
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Report on AVHRRaerosol demonstration dataset
No further details.
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Release note AVHRR AOD CDR
No further details.
- OnLine resource
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FIDUCEO CDR/FCDR Format Specification
No further details.
- Hierarchy level
- dataset Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
- Supplied to CEDA for archival by Thomas Popp of DLR on behalf of the H2020 FIDUCEO project
- File identifier
- 1326447659e34bc3ba8042041ca0546b XML
- Metadata language
- EnglishEnglish
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
- Parent identifier
- f6f424ff804b434685e2913e5bd2f3b0 f6f424ff804b434685e2913e5bd2f3b0
- Hierarchy level
- dataset Dataset
- Date stamp
- 2024-10-02T07:06:32
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3