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Osi Saf Cdop SAF/OSI/CDOP2/M-F/TEC/RP/332 Quarterly Report OSI SAF CDOP OSI SAF CDOP _ QUARTERLY OPERATIONS REPORT _ 2nd quarter 2012 _ Apr 2013 _ version 1_1 Prepared by DMI, IFREMER, KNMI, Meteo-France and met.no QR12-2 Page 1 of 101 T8.1 SAF/OSI/CDOP2/M-F/TEC/RP/332 Quarterly Report OSI SAF CDOP Table of contents 1 Introduction ....................................................................................................... 4 1.1 Scope of the document ................................................................................ 4 1.2 Products characteristics ............................................................................... 4 1.3 Reference and applicable documents .......................................................... 8 1.3.1 Applicable documents ........................................................................... 8 1.3.2 Reference documents ........................................................................... 8 1.4 Definitions, acronyms and abbreviations...................................................... 8 2 OSI SAF products availability and timeliness............................................... 10 2.1 Availability on FTP servers......................................................................... 11 2.2 Availability via EUMETCast........................................................................ 14 3 Main anomalies, corrective and preventive measures................................. 17 3.1 At SS1 ........................................................................................................ 17 3.2 At SS2 ........................................................................................................ 17 3.3 At SS3 ........................................................................................................ 17 4 Main events and modifications, maintenance activities .............................. 18 4.1 At SS1 ........................................................................................................ 18 4.2 At SS2 ........................................................................................................ 18 4.3 At SS3 ........................................................................................................ 18 5 OSI SAF products quality ............................................................................... 19 5.1 SST quality................................................................................................. 19 5.1.1 METEOSAT SST quality ..................................................................... 19 5.1.2 GOES-E SST quality........................................................................... 25 5.1.3 NAR SST quality ................................................................................. 30 5.1.4 GLB and MGR SST quality ................................................................. 40 5.1.5 AHL SST quality.................................................................................. 44 5.2 Radiative Fluxes quality ............................................................................. 46 5.2.1 DLI quality ........................................................................................... 46 5.2.2 SSI quality........................................................................................... 50 5.3 Sea Ice quality............................................................................................ 55 5.3.1 Reference data.................................................................................... 55 5.3.2 Validation requirements ...................................................................... 55 5.3.3 Validation against DMI ice charts........................................................ 56 5.3.4 Validation results for Northern Hemisphere based on Greenland Ice charts 56 5.3.5 Multi-year variability ............................................................................ 59 5.3.6 Validation against NIC (National Ice Center) ice charts for Southern Hemisphere ....................................................................................................... 61 5.3.7 Multi-year variability, Southern Hemisphere........................................ 65 5.3.8 Validation against met.no ice charts.................................................... 67 5.3.9 Results from manual error registration ................................................ 68 QR12-2 Page 2 of 101 T8.1 SAF/OSI/CDOP2/M-F/TEC/RP/332 Quarterly Report OSI SAF CDOP 5.3.10 Statistics for confidence levels ............................................................ 68 5.3.11 Sea Ice validation comments .............................................................. 70 5.3.12 Validation of the Low Resolution Sea Ice Drift product ....................... 70 5.4 Global Wind quality .................................................................................... 71 5.4.1 ASCAT Wind quality............................................................................ 72 5.4.2 Buoy validations.................................................................................. 76 6 Service and Product usage ............................................................................ 78 6.1 Statistics on the Web site and help desk.................................................... 78 6.1.1 Statistics on the central OSI SAF Web Site and help desk ................. 78 6.1.2 Statistics on the OSI SAF Sea Ice Web portal and help desk ............. 89 6.1.3 Statistics on the OSI SAF KNMI scatterometer web page and helpdesk 90 6.2 Statistics on the FTP sites use ................................................................... 93 6.2.1 Statistics on the SS1 ftp sites use....................................................... 93 6.2.2 Statistics on the SS2 ftp site use......................................................... 96 6.2.3 Statistics on the SS3 ftp site use......................................................... 98 7 Documentation update.................................................................................... 99 QR12-2 Page 3 of 101 T8.1 SAF/OSI/CDOP2/M-F/TEC/RP/332 Quarterly Report OSI SAF CDOP 1 Introduction 1.1 Scope of the document The present report covers 2nd quarter 2012, i.e. from 1st of April to 30 June 2012. The objective of this document is to provide EUMETSAT and users, in complement with the Web Site, www.osi-saf.org , with an overview on O&SI SAF products availability and quality, main anomalies and events, product usage, users’ feedback, and updated available documentation. SS1 is the Production Sub-system 1, involving M-F/CMS, met.no and DMI, under M- F/CMS responsibility. It concerns SST and Radiative Fluxes products. SS2 is the Production Sub-system 2 which involves met.no and DMI, under met.no responsibility. It concerns the Sea Ice products. SS3 is KNMI. It concerns the Wind products. 1.2 Products characteristics The characteristics of the current products are recalled in the following table, extracted from the Service Specification Document (SESP, [AD-1]). QR12-2 Page 4 of 101 T8.1 SAF/OSI/CDOP2/M-F/TEC/RP/332 Quarterly Report OSI SAF CDOP y c d d n a o n t e n h a a m u e t o y d i y q g s e t c e n e a c e u i m r r a t l o t f i r m r e l o s n l a u i s v c n s e r o c s N a o i t o e e t i c s e c r t t a t t a t a d n l l c c c S a i c a t l a r a o u u a i t i i f e r e e t t h d d i m u t a g r r a n a o o p m r e h e r r o i e p p a n V I F T s g s t P P C M wind speed (m/s) and BUFR via EUMETCAST, Better than 2 m/s in wind direction (degrees). on FTP server and EDC; component RMS with a Triple collocation ASCAT 25 km Sigma0's and swath NetCDF on FTP server, bias of less than 0.5 m/s with NWP and Winds ASCAT25 winds ASCAT EDC and NAIAD 2 h 45 Global Continuous 25 km in wind speed buoys wind speed (m/s) and BUFR via EUMETCAST, Better than 2 m/s in wind direction (degrees). on FTP server and EDC; component RMS with a Triple collocation ASCAT Sigma0's and swath NetCDF on FTP server bias of less than 0.5 m/s with NWP and 12.5 km Winds ASCAT12 winds ASCAT and EDC 2 h 45 Global Continuous 12.5 km in wind speed buoys wind speed (m/s) and Better than 2 m/s in wind direction (degrees). component RMS with a Triple collocation ASCAT coastal ASCAT12 Sigma0's and swath BUFR, bias of less than 0.5 m/s with NWP and Winds + winds ASCAT NetCDF 2 h 45 Global Continuous 12.5 km in wind speed buoys N..A. only Better than 2 m/s in wind archive component RMS with a Triple collocation SeaWinds Sigma0's and swath BUFR and NetCDF (Only availabl bias of less than 0.5 m/s with NWP and 100km Wind SeaW100 winds SeaWinds archive) e Global Continuous 100 km in wind speed buoys N..A. only Better than 2 m/s in wind archive component RMS with a Triple collocation SeaWinds Sigma0's and swath BUFR and NetCDF (Only availabl bias of less than 0.5 m/s with NWP and 25km Wind SeaW025 winds SeaWinds archive) e Global Continuous 25 km in wind speed buoys NetCDF on IFREMER NAR Sea NOAA –18 and FTP server. polar Surface multispectral then 19, Metop GRIB2 via EUMETCast European stereogr. monthly bias : 0,5°c, Sdt Comparison with Temperature NAR SST algorithm AVHRR and UMARF 4 h Seas 6 h 2 km Deviation : 0,8°c buoy observations underskin GRIB ed2 via EUMETCast GLB Metop temperature (°K). and EDC Sea Surface multispectral Metop/ NetCDF on IFREMER 0.05° lat- monthly bias : 0,5°c, Sdt Comparison with Temperature GLB SST algorithm AVHRR FTP server 6h global 12h lon Deviation : 0,8°c buoy observations QR12-2 Page 5 of 101 T8.1 SAF/OSI/CDOP2/M-F/TEC/RP/332 Quarterly
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