Home /PRODUCTS /Atlantic High Latitude Surface Solar Irradiance
Atlantic High Latitude Surface Solar Irradiance
| IDENTIFICATION |
| Description | Daily Surface Solar Irradiance over Atlantic High Latitudes based on AVHRR data from Metop and NOAA satellites. |
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| Product type | Near real time product |  |
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| Status | Operational |
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| Identifier | OSI-302-b |
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| Acronym | AHL SSI |
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| Acronym for EDC (APNM) | ODLISSIAHL |
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| CHARACTERISTICS |
| Processing level | L3 |
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| Satellite input | AVHRR (Metop, NOAA) |
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| Other input | NWP outputs |
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| Frequency | 1 per day |
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| Central time | 12:00 |
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| Timeliness | 3h30 |
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| Spatial coverage | Atlantic North of 50N |
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| Spatial sampling | 5 km |
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| Projection | Polar stereographic |
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| Characteristics & methods | Bulk parameterization, including over sea ice |
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| ACCURACY REQUIREMENTS |
| Thresold accuracy | monthly relative bias: 20 %, monthly relative Std. Deviation: 50 % |
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| Target accuracy | monthly relative bias: 10 %, monthly relative Std. Deviation: 30 % |
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| Optimal accuracy | monthly relative bias: 0 %, monthly relative Std. Deviation: 10 % |
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| Verification/validation method | Comparison with pyranometers measurements |
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| DATA ACCESS |
| Diffusion mean(s) and format(s) | EUMETCast (NetCDF4)
EDC (NetCDF4)
HL FTP Server (NetCDF4)
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| Main FTP server | HL FTP server, last 31 days (hosted by MET Norway) | Other FTP server,
other mean(s) to access main server | Archive HL FTP server
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| EUMETCast | EUMETCast | Discovery mean(s) | |
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| EUMETSAT Data Centre | EDC |
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| Applications and users | NWP, Ocean and biological modeling at operational and research centers. | OSI SAF Producer | Norwegian Meteorological Institute |
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| VIEW MORE |
DOCUMENTATION |
| Product web page | Description | Product User Manual | PUM |
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| Live production status | Status | Algorithm Theoretical Baseline Document | ATBD |
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| Last products at a glance | Quicklook | Scientific Validation Report | SVR |
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| HISTORY, COMMENTS |
This product is going to replace OSI-302.
Main differences with OSI-302 are
• the algorithm improvement, including over sea ice: new cloud type product from PPS v2014 (instead of v2009) and improved surface coefficients,
• processing on swath data instead of fixed tiles,
• the new output format (DLI and SSI combined in NetCDF4).
At the beginning of 2020, the data used are the AVHRR data from Metop-A, Metop-B and NOAA-19.
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| Authorised to be operational/released | 13/03/2020 |
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| Declared operational/released | 21/04/2020 |
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| First product date | 20/03/2020 |
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