Product User Manual (PUM) for product H04 – PR-OBS-4 - H-SAF
Contents
1. 1 Product H04 PR OBS 4 Date 31 05 2012 Page 19 23 The EUMETSAT NP et t Product User Manual PUM 04 HSAF Product coverage Figure of this section shows the required geographic coverage for H SAF products I I I I I I I I I I I I I T a I I I yil I I I I I I I I I I I I I I I I i ua I I I I I I I I I I I I I I I I I I I I I I I ZER ERL T zu ees ace ed a Reta aa aa a Oe ee el ee I I I I I I I I I I I Y Figure 6 Required H SAF coverage 25 75 N lat 25 W 45 E This area is fully covered by the Meteosat image although the resolution sharply decreases at higher latitudes each 15 min For polar satellites the area is covered by strips of swath approximately 1500 km conical scanners or 2200 km cross track scanners at about 100 min intervals Swaths intercepting the acquisition range of direct read out stations provide data in few minutes for swaths outside the acquisition range the delay may be several tens of minutes if the satellite instrument data are part of the EARS EUMETCast broadcast some hours otherwise e g by ftp The time resolution observing cycle is controlled by the number of satellites concurring to perform the observation and the instrument swath Data circulation and management Next figure shows the data circulation scheme in H SAF All products from the generating centres are concentrated at CNMCA except that certain can go directly to the user by dedicate2. 2012 Page 16 23 subdivisionsOfBasicAngle O latitudeOfFirstGridPoint 59963614 longitudeOfFirstGridPoint 25064672 latitudeOfLastGridPoint 23650697 longitudeOfLastGridPoint 47619240 iDirectionIncrement 72756 jDirectionIncrement 72771 48 00110000 3 1 i direction increments given 4 1 j direction increments given 5 0 Resolved u and v components of vector quantities relative to easterly and northerly directions See grib2 3 3 table resolutionAndComponentFlags 48 0 00000000 1 0 Points of first row or column scan in the i x direction 2 0 Points of first row or column scan in the j y direction 3 0 Adjacent points ini x direction are consecutive 4 0 All rows scan in the same direction See grib2 3 4 table scanningMode 0 grib 2 Section 4 PRODUCT DEFINITION SECTION numberOfCoordinatesValues 0 30 Satellite product grib2 4 0 table productDefinitionTemplateNumber 30 0 Image format products grib2 4 1 3 table parameterCategory 0 192 Reserved for local use grib2 4 2 3 0 table parameterNumber 192 192 Reserved for local use grib2 4 3 table typeOfGeneratingProcess 192 grib 2 Section 5 DATA REPRESENTATION SECTION numberOfValues 500000 0 Grid point data simple packing grib2 5 0 table dataRepresentationTemplateNumber 0O decimalScaleFactor O numberOfBitsContainingEachPackedValue 8 0 Floating point grib2 5 1 table ty
3. AMSU A and MHS PR OBS 2 e the Morphing process based on infrequent MW derived precipitation maps and MW precipitation pseudo maps interpolated at frequent intervals by exploiting the dynamic information provided by the SEVIRI images It is noted that at the time of closing the H SAF CDOP 1 phase ORR PR OBS 3 makes use of MW precipitation data coming from the PR OBS 1 chain SSMIS since October 2011 1 2 5 Precipitation phase The flag phase is available in the current version of PR OBS 1 H 01 but it is not implemented in the current version of PR OBS 2 H 02 Thus it is not available in the current version of PR OBS 4 H 04 which doesn t make use of the flag phase Then the cluster is waiting the new release of H02 to switch on the flag phase in the H04 The flag phase will be available in the new version of the algorithm for H 02 which will be delivered at the end of CDOP1 Thus the H 04 product will be modified to include the flag phase available from H 01 and H 02 It is conceivable that a new validation will be necessary to assess the quality of the results 1 2 6 Product coverage and appearance A prototype example is provided in figure below nu rodau i TUNOA Doc No SAF HSAF PUM 04 oane facies H SAF Aa a i Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 9 23 Morphingat 01 30 UTC MAX Morphingat 03 30 UTC REA Figure 2 Morphing of PMW rain products by
4. PR OBS 1 and AMSU A and MHS utilised by PR OBS 2 The current status of the satellites possibly to be utilised for PR OBS 4 is shown in next table z Satellite Launch End of service Height Status a a ki 12 D 845 DMSP F15 oa expected gt 2010 05 40 d Secondary Operation SSM I defective 1 DMSP F16 eee expected gt 2010 eee 07 10 d Secondary Operation SSMIS 2003 km 855 DMSP F17 4 Nov 2006 expected gt 2011 a 05 30d Primary Operation SSMIS 18 Oct 857 gt DMSP F18 2009 expected gt 2014 07 55d Primary Operation SSMIS 19 Oct 817 AMSU A defective gt MetOp A 5006 expected gt 2011 09 31d Operational 20 M 4 NOAA 18 Aaa apegadas 2 ieede Operational AMSU A MHS 2005 km 7 NOAA 19 6 Feb 2009 expected gt 2014 ae 13 43 a Operational an ee km defective 21 Dec o Meteosat 9 2005 expected gt 2019 GEO 0 Operational SEVIRI Currently not used waiting for adapting the PR OBS 2 software to handle the defect of one AMSU A channel Table 1 Current status of satellites utilised for PR OBS 4 as of March 2010 Descriptions of SSMIS and of AMSU A and MHS can be found in the Product User Manuals PUM 01 on PR OBS 1 and PUM 2 on PR OBS 2 Satellites Meteosat 8 Meteosat 9 Meteosat 10 Meteosat 11 i e Meteosat Second Generation Status Operational Utilised in the period 2002 to 2021 Mission sid Multi purpose imagery and wind derivation by tracking clouds and water v
5. Doc No SAF HSAF PUM 04 Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 1 23 EUMETSAT Satellite Application Facility on Support to Operational Hydrology and Water Management The EUMETSAT Network of Satellite Application Facilities H SA F Support to Operational Hydrology and Water Management Product User Manual PUM for product H04 PR OBS 4 Precipitation rate at ground by LEO MW supported by GEO IR with flag of phase Reference Number SAF HSAF PUM 04 Issue Revision Index 1 1 Last Change 31 May 2012 Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 2 23 oe Product User Manual PUM 04 20 01 2012 Baseline version prepared for ORR1 Part 3 Updated release for CDOP2 ORR1 Part3 Close out Removal of the discussions on product status RID 1 Insertion the explanation about precipitation phase RID3 in section 1 2 5 Explanation about the product specificity RID1 on PVRO4 31 05 2012 Improvement of the concept of timeliness in section 2 1 3 RID4 on PVRO4 Quality information associated to product now documented in Annex 1 RID2 Doc No SAF HSAF PUM 04 Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 3 23 INDEX 1 aange olte sad PEN EE EPEE E EREE AE E E EPEE E ETES EE E A E E EE reas 5 14 Purpose o ihe docume serr n E uannce
6. F PUM 04 Issue Revision Index 1 1 Date 31 05 2012 Page 23 23 Product User Manual PUM 04 Product H04 PR OBS 4 SAF on Ozone and Atmospheric Chemistry Monitoring Hungarian Meteorological Service Operations Readiness Review SAF on Ocean and Sea Ice Probability Density Function Pilot Evaluation of High Resolution Precipitation Products Picture element Passive Micro Wave Project Plan Precipitation Radar on TRMM Product User Manual Product Validation Report Royal Meteorological Institute of Belgium alternative of IRM Rain Rate Rapid Update Satellite Application Facility Spinning Enhanced Visible and Infra Red Imager on Meteosat from 8 onwards Slovak Hydro Meteorological Institute Special Sensor Microwave Imager on DMSP up to F 15 Special Sensor Microwave Imager Sounder on DMSP starting with S 16 Suomen ymp rist keskus Finnish Environment Institute Equivalent Blackbody Temperature used for IR Teknillinen korkeakoulu Helsinki University of Technology TRMM Microwave Imager on TRMM Tropical Rainfall Measuring Mission UKMO Turkish State Meteorological Service Technische Universitat Wien in Austria Unified Meteorological Archive and Retrieval Facility University of Ferrara in Italy User Requirements Document Universal Coordinated Time Visible Zentralanstalt fur Meteorologie und Geodynamik of Austria
7. Part with overall statements on the impact of H SAF products in Hydrology 1 2 Introduction to product PR OBS 4 1 2 1 Principle of sensing Product PR OBS 4 is based on the same ingredients of PR OBS 3 but the blending method is different Here the basic information is the precipitation rate supposedly accurate measured by MW instruments in the H SAF case PR OBS 1 and PR OBS 2 The sequence of IR images from the SEVIRI instrument on board Meteosat satellites is used to derive dynamic information cloud motion The dynamic information is used to interpolate in between successive MW derived precipitation fields In between two successive MW derived precipitation fields it is possible to advect the first field forward and the second one backward and combine the two The product is generated at 30 min rate from the 15 min imaging rate of SEVIRI and the spatial resolution is consistent with that one of the MW image Frequent sampling is a prerequisite for computing accumulated precipitation product PR OBS 5 The processing method is called Morphing The processing area is the same as for PR OBS 3 and PR OBS 5 see Figure 6 Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product User Manual PUM 04 Product H04 PR OBS 4 Date 31 05 2012 Page 6 23 1 2 2 Status of satellites and instruments PR OBS 4 does not retrieve precipitation from MW sensors MW derived precipitation data come from SSM I and SSMIS utilised by
8. R blending precipitation rate processing chain esscseeececn 8 Figure 2 Morphing of PMW rain products by using the 183 WSL method Laviola and Levizzani 2008 2009 during a severe storm over Southern Italy on 02 October 2009 ceccccsescccccssecceeeesececeeececseecceseesecesaeaeess 9 Figure 3 Structure of the Precipitation products Validation team ccsccccsssecceceseecceesececeeeceeeeeceeeeneeeeeas 12 Figure 4 Conceptual scheme of the EUMETSAT Application Ground Segment c cssseccceeseeeceeeeeeeeeeseeeees 17 Figure 5 Current composition of the EUMETSAT SAF Network in order of establishment esscr 17 Figure 6 Required H SAF coverage 25 75 N lat 25 W 45 E Lec ccessccccessececeesecceeeescceseeeceseeaecesseneceetenseeeeas 19 Figure 7 H SAF central archive and distribution facilities cccccsssscccccssseccecceeeseceeccseeseceeesseusecessssaaeeeeeeeas 20 Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 5 23 The EUMETSAT etwork of satente Aue Product User Manual PUM 04 1 Introduction 1 1 Purpose of the document Product User Manuals are available for each pre operational H SAF product for open users and also for demonstrational products as necessary for beta users Each PUM contains e Product introduction principle of sensing Satellites utilized Instrument s description Highlights of the algorithm Architecture of the product
9. a EUMETCast when authorized and via FTP after log in The current access is via FTP at the following site e URL ftp ftp meteoam it e to obtain user a password please contact the Help Desk In the FTP site there are three relevant directories e products for near real time dissemination e from_archive for previous months e utilities for providing decoding tools 4 1 1 Directory products In this directory the products appear shortly after generation consistently with the timeliness requirement They are kept available for nominally 1 2 months often more Quick looks of the latest 3 5 PR OBS 4 maps covering some H SAF areas can be viewed on the H SAF web site http hsaf meteoam it 4 1 2 Directory from_archive Currently from_archive This directory holds the data of the previous months 4 1 3 Directory utilities This directory provides tools to decode and manage the digital data 4 2 Formats and codes Three type of files are provided for PR OBS 4 e the digital data coded in GRIB2 e the image like maps coded in PNG In the directory utilities the folder Grib_ decode provides the instructions for reading the digital data 4 3 Description of the files Current data e Directory products e Sub directory h04 e Two folders h04 cur_mon_grb h04 cur_mon_png Past data e Directory from_archive e Sub directory h04 e Monthlydouble sub folders e h04 yyyy
10. apatacees esha ce seasns sti ocsuennioseseiiencasieassaraucbencsuenseaeeeeananeneeaes 12 3 1 Ye C9 dre ao a ec EE seer E enn Ce ee ene 12 A PrO AV GI LONG a ns aioncsuunnoseseiiencaseassaruueibeecusasareeaananeneeaes 13 4 1 secre seca ee E ee tse ne este ora ees gece eget A E A E 13 4 1 1 CLO pProOdUC S asa arss sacs sant AS 13 4 1 2 Direto ON A FCMIVE oerein T E T 13 4 1 3 DECON UO S 13 4 2 FOr GING COO CS o T E 13 4 3 DES CHO UION Or ETIES areco E 13 Annex 1 PR OBS 4 Output description sssseesssessseessrrssrrrssressrerssrresressrrrssrrosrerserrssrersrerseerssreesrerseeresreesne 15 Annex 2 Introduction to H SAF seciesciceateccornidassinccdvedesendetasannct ecaneadassbendicedeeendesaioesabeeouandusadanaieieerondecasancetaness 17 ANNO o ACON a T R 22 Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product User Manual PUM 04 Product H04 PR OBS 4 Date 31 05 2012 Page 4 23 List of Tables Table 1 Current status of satellites utilised for PR OBS 4 as of March 2010 c ccccsssccceeeeeseeeceeeeeeeeeeeees 6 Table 2 Main features of SEVIRI secessacnscenenecceqcsncedauatanavenseanicbeesaest utes sancreusdonseteswatesnascudesyersoeiawnecessenscsetsanasacssuaeese 7 Table 3 Summary instructions for accessing PR OBS 4 data cccccesccccsesscesececeeecseeneceeenceseueceseueceneueseeeneeees 14 Table 4 H SAF Product Listessi NEEE O victors S EEES 18 List of Figures Figure 1 Flow chart of the LEO MW GEO I
11. apour features Instrumenttype Multi purpose imaging VIS IR radiometer 12 channels 11 narrow bandwidth 1 high resolution broad bandwidth VIS Scanning technique N A GEO Coverage cycle Full disk every 15 min Limited areas in correspondingly shorter time intervals Resolution s s p 4 8 km IFOV 3 km sampling for narrow channels 1 4 km IFOV 1 km sampling for broad VIS channel Mass 260 kg Power 150 W Data rate 3 26 Mbps Spectralinterval 99 encircledenergy 4 3 1 albedo 10 1 1 albedo 7 28 1 albedo 3 1 albedo ee Doc No SAF HSAF PUM 04 aem eS Product User Manual PUM 04 o Facies Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 7 23 Table 2 Main features of SEVIRI 1 2 3 Highlights of the algorithm The baseline algorithm for PR OBS 4 processing is described in ATDD 04 Only essential elements are highlighted here The blending technique adopted for PR OBS 4 is called Morphing developed after the initial work of Joyce et al 2004 SEVIRI frequent IR images are commonly used to derive cloud system advection vectors These vectors may not always correlate well with the propagation of the lower precipitating layer of the system and wind direction changes and wind speed generally increases in magnitude with height from the earth s surface However spatially lagging overlapping 5x5 lat lon image segments sampled at 2 5 lat lon intervals provide a goo
12. ctivity Note in H SAF the only product with vertical structure is SM ASS 1 Volumetric soil moisture 2 1 2 Observing cycle and time sampling The observing cycle At is defined as the average time interval between two measurements over the same area The composite observing cycle of PR OBS 1 PR OBS 2 over Europe is about 3 h MW derived precipitation fields are interpolated by using dynamical information from SEVIRI Since conceptually the process is governed by the availability of two consecutive rain products PR OBS 4 will be run when at least two of the rain products PR OBS 1 and or PR OBS 2 will be stored therefore the observing cycle is At 3 h Note this will occur when PR OBS 1 will be utilised in addition to PR OBS 2 Interpolated maps are available at30 minintervals sampling time 2 1 3 Timeliness The timeliness o is defined as the time between observation taking and product available at the user site assuming a defined dissemination mean The timeliness depends on the satellite transmission facilities the availability of acquisition stations the processing time required to generate the product and the reference dissemination means For PR OBS 4 the algorithm starts every hour with or without the new MW precipitation map At the time T it works between 2 MW precipitation maps one at T 2hrs and the second at T 1hrs Assuming processing time is 3 4 minutes and dissemination time is 1 2 minutes conclusion is e timel
13. d links example GTS Global Telecommunication System connecting operational meteorological services From CNMCA the data are sent to EUMETSAT to be broadcast by EUMETCast in near real time m E seein Doc No SAF HSAF PUM 04 Satelite Application roquc ser IVianUal HSAF Issue Revision Index 1 1 tyro ond Wee Product H04 PR OBS 4 Date 31 05 2012 Page 20 23 A UMETSAT l Figure 7 H SAF central archive and distribution facilities All data also go to the H SAF Archive where they can be accessed through the EUMETSAT Data Centre via a Client Therefore the H SAF products may be accessed e via EUMETCast in near real time primary access mode e off line via the EUMETSAT Data Centre most common access mode for the scientific community It is noted that this scheme is valid only for operational products For products in development disseminated to beta users only or demonstrational products the distribution ordinarily utilises the ftp servers of the product generation centres or the CNMCA server CNMCA also re disseminate the products generated in other centres therefore all products can be retrieved from the CNMCA server The ftp dissemination stream will continue to be active even after the EUMETCast dissemination becomes effective both for redundancy purpose and for users not equipped for EUMETCast reception The H SAF web site The address of the H SAF web site is http hsaf meteoam it The web site p
14. d measure of the movement of entire cloud systems The MW rainfall propagation process begins by spatially propagating initial fields of 8 km half hourly instantaneous MW analysis estimates by the discrete distance of the corresponding zonal and meridional vectors Similar process is applied backward in time when the next MW derived precipitation field is available The two coincident determinations from the forward and the backward processes are averaged giving weight to the time distance from the two consecutive MW determinations Joyce R J J E Janowiak P A Arkin and P Xie 2004 CMORPH A method that produces global precipitation estimates from passive microwave and infrared data at high spatial and temporal resolution J Hydrometeor 5 487 503 Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product User Manual PUM 04 Product H04 PR OBS 4 Date 31 05 2012 Page 8 23 1 2 4 Architecture of the products generation chain The architecture of the PR OBS 4 product generation chain is shown here below PRECIPITATION RATE Figure 1 Flow chart of the LEO MW GEO IR blending precipitation rate processing chain Actually figure above refers to the architecture of the coupled products PR OBS 3 and PR OBS 4 that includes e the Rapid Update process based on frequent SEVIRI IR images calibrated by the infrequent MW derived precipitation data as retrieved from SSM 1 and SSMIS PR OBS 1 or from
15. dvanced Microwave Sounding Unit B on NOAA up to 17 ATDD AlgorithmsTheoretical Definition Document AU Anadolu University in Turkey BfG Bundesanstalt f r Gewasserkunde in Germany CAF Central Application Facility of EUMETSAT CDOP Continuous Development Operations Phase CESBIO Centre d EtudesSpatiales de la BlIOsphere of CNRS in France CM SAF SAF on Climate Monitoring CNMCA Centro Nazionale di Meteorologia e Climatologia Aeronautica in Italy CNR Consiglio Nazionale delle Ricerche of Italy CNRS Centre Nationale de la Recherche Scientifique of France DMSP Defense Meteorological Satellite Program DPC Dipartimento Protezione Civile of Italy EARS EUMETSAT Advanced Retransmission Service ECMWF European Centre for Medium range Weather Forecasts EDC EUMETSAT Data Centre previously known as U MARF EUM Short for EUMETSAT EUMETCast EUMETSAT s Broadcast System for Environmental Data EUMETSAT European Organisation for the Exploitation of Meteorological Satellites FMI Finnish Meteorological Institute FTP File Transfer Protocol GEO Geostationary Earth Orbit GRAS SAF SAF on GRAS Meteorology HDF Hierarchical Data Format HRV High Resolution Visible one SEVIRI channel H SAF SAF on Support to Operational Hydrology and Water Management IDL Interactive Data Language IFOV Instantaneous Field Of View IMWM Institute of Meteorology and Water Management in Poland IPF Institut fur Photogrammetrie und Fernerkundung of TU Wien in Austria IPWG Inte
16. esceungeviaestdsvdactaesneusonsenseosnneraes 5 1 2 introduction to product PROBS Ai issic a e a ien a Eene 5 1 2 1 PrnCGPIEOLSOI INE caoran denies anecastaeecaseenees 5 1 2 2 Status of satellites and instruments ssesessesssserserrrresrrressrrressreresreressrersserressreresrtersrrereseeresene 6 1 2 3 Hieniehts of TAG al BOIL NN keena AE 7 1 2 4 Architecture of the products generation chain ccecccccsssecccessececceseccecascceeeeseceeeeeeceeseneeeeeas 8 1 2 5 PEGI ONON E e E sotaceboeed cots osmcusessvectionercvecaedeniceecaescuseuseecasaemntes 8 1 2 6 PFOGUCE coverage and appearanCE sessar iesind iseen e ieia daie sieri 8 1 2 7 Product SSC TCE acca eacsceoeetternc cise ceed and cn ves cise canes sueasnbasedante semga ce nse ectiece savea son dendconsumcasessecaen aoe 10 2 Product operational characteristics saca cc tesdasvndereineccessassnassnciet davtuncedeccintecesrassassunced mans oierinannaruceearas 11 2 1 Horizontal resolution and sampling cisasiccsccciantevapaacssccbonssunnseroncsiorsesmansensdebcasabenuieasverianauseannassaes 11 2 1 1 Vertical resolution if applicable osssesessenessensesreresrrrsssreresrrrsssreresrrenssreressrrresreresererssrereserressne 11 2 1 2 Observing cycle and time sampling ssessesessensesrerssrrrserrerssrrrssrrereserresereessrreessrereseereserereseerese 11 2 1 3 TACE Seer near cee so oe cosa a sais een etre ye onan tae neste eects coe 11 3 Produc AOA ON sce te sess ttacacenseass ange cstencte
17. gGeneratingSubCentre O 3 Current operational version number implemented on 2 November 2005 grib2 1 0 table gribMasterlablesVersionNumber 3 0 Local tables not used grib2 1 1 table versionNumberOfGribLocalTables O 3 Observation time grib2 1 2 table significanceOfReferenceTime 3 year month day hour minute second 2 Research products grib2 1 3 table productionStatusOfProcessedData 2 6 Processed satellite observations grib2 1 4 table typeOfProcessedData 6 0 Specified in Code table 3 1 grib2 3 0 table sourceOfGridDefinition O numberOfDataPoints 500000 numberOfOctetsForOptionalListOfNumbersDefiningNumberOfPoints 0 0 There is no appended list grib2 3 11 table interpretationOfListOfNumbersDefiningNumberOfPoints 0 0 Latitude longitude Also called equidistant cylindrical or Plate Carree grib2 3 1 table gridDefinitionTemplateNumber O 6 Earth assumed spherical with radius of 6 371 229 0 m grib2 3 2 table shapeOfTheEarth 6 scaleFactorOfRadiusOfSphericalEarth 0 scaledValueOfRadiusOfSphericalEarth O scaleFactorOfMajorAxisOfOblateSpheroidEarth 0 scaledValueOfMajorAxisOfOblateSpheroidEarth O scaleFactorOfMinorAxisOfOblateSpheroidEarth O scaledValueOfMinorAxisOfOblateSpheroidEarth O Ni 1000 Nj 500 basicAngleOfThelnitialProductionDomain O Doc No SAF HSAF PUM 04 Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05
18. ibilities To send an email through the Contact Us functionality of the web site in charge of forwarding the request to an help desk This functionality is also available to unregistered users To compose a specific question request to the help desk available only to registered users in this case the user should specify in the Subject one of the following codes MAN PRE SOM SNO HYD ARC GEN management precipitation soil moisture snow hydrology archive general Condition for use of H SAF products All H SAF products are owned by EUMETSAT and the EUMETSAT SAF Data Policy applies They are available for all users free of charge Users should recognise the respective roles of EUMETSAT the H SAF Leading Entity and the H SAF Consortium when publishing results that are based on H SAF products EUMETSAT s ownership of and intellectual property rights into the SAF data and products is best safeguarded by simply displaying the words EUMETSAT under each of the SAF data and products shown in a publication or website The EUMETSAT Network o Satelite Application Facilities Support ydrology and We N Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product User Manual PUM 04 Product H04 PR OBS 4 Date 31 05 2012 Page 22 23 Annex 3 Acronyms AMSU Advanced Microwave Sounding Unit on NOAA and MetOp AMSU A Advanced Microwave Sounding Unit A on NOAA and MetOp AMSU B A
19. iness 6 120 min Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product User Manual PUM 04 Product H04 PR OBS 4 Date 31 05 2012 Page 12 23 3 Product validation 3 1 Validation strategy Whereas the previous operational characteristics have been evaluated on the base of system considerations number of satellites their orbits access to the satellite and instrument features IFOV swath MTF and others the evaluation of accuracy requires validation i e comparison with the ground truth or with something assumed as true PR OBS 4 as any other H SAF product will be submitted during the CDOP 2 to validation entrusted to a number of institutes see figure below Germany Slovakia BfG SHMU Figure 3 Structure of the Precipitation products validation team Precipitation data will be compared with rain gauges and meteorological radar Before undertaking comparison ground data and satellite data will be submitted to scaling and filtering procedures Two streams of activities will be carried out e evaluation of general statistics multi categorical and continuous to help in identifying existence of pathological behaviour e selected case studies useful in identifying the roots of such behaviour Doc No SAF HSAF PUM 04 Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 13 23 4 Product availability 4 1 Site PR OBS 4 will be available vi
20. mm_ grb Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product User Manual PUM 04 Product H04 PR OBS 4 Date 31 05 2012 Page 14 23 e h04_yyyymm_png In both directories products and reprocess the files have identical structures Next table summarises the situation and provides the information on the file structure including the legenda URL ftp ftp meteoam it username to contact the Help Desk password to contact the Help Desk Directory products a OE RUNEN Directory from_archive Product identifier h04 h04 _ h04_cur_mon_grb data of current h04_cur_mon_png monie h04_yyyymm_png data of previous months SS Files description h04_yyyymmdd_hhmm_rom grb gz digital data for both directories yyyymm year month yyyymmdd year month day hhmm hour and minute of last scan line northernmost Table 3 Summary instructions for accessing PR OBS 4 data Doc No SAF HSAF PUM 04 Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 15 23 Annex 1 PR OBS 4 Output description PR OBS 4 quality index is encoded as a GRIB2 please refer to WMO GRIB2 format documentation available at www wmo int with the following keys GRIB2 gribSectionO 3 Space products grib2 0 0 table discipline 3 editionNumber 2 section 1 80 Rome RSMC grib1 0 table identificationOfOriginatingGeneratingCentre 80 identificationOfOriginatin
21. of satellite derived products in hydrological models e assessment of the impact of the new satellite derived products on hydrological applications This document the PUM Product User Manual is concerned only with the satellite derived products The list of products to be generated by H SAF is shown in next table PR OBS 1 H 01 Precipitation rate at ground by MW conical scanners with indication of phase PR OBS 2 H 02 Precipitation rate at ground by MW cross track scanners with indication of phase PR OBS 3 H 03 Precipitation rate at ground by GEO IR supported by LEO MW PR OBS 4 Precipitation rate at ground by LEO MW supported by GEO IR with flag for phase PR OBS 5 H 05 Accumulated precipitation at ground by blended MW and IR PR OBS 6 Blended SEVIRI Convection area LEO MW Convective Precipitation PR ASS 1 4 06 Instantaneous and accumulated precipitation at ground computed by a NWP model SM OBS 2 H 08 Small scale surface soil moisture by radar scatterometer SM OBS 3 H 16 Large scale surface soil moisture by radar scatterometer Table 4 H SAF Product List The work of precipitation products generation is shared in the H SAF Consortium as follows e Precipitation products pre fix PR are generated in Italy by the CNMCA in its premises at Pratica di Mare Rome e CNMCA also manages the Central Archive and the Data service e CNR develops and upgrades the algorithm Doc No SAF HSAF PUM 04 Issue Revision Index 1
22. peOfOriginalFieldValues O grib 2 Section 6 BIT MAP SECTION 0 Bit map is present in this product grib2 6 0 table bitMapIndicator 0 missingValue 0 0 grib 2 Section 7 data grib 2 Section 8 END The EUMETSAT Doc No SAF HSAF PUM 04 Netvor o Product User Manual PUM 04 BE Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 17 23 Annex 2 Introduction to H SAF The EUMETSAT Satellite Application Facilities H SAF is part of the distributed application ground segment of the European Organisation for the Exploitation of Meteorological Satellites EUMETSAT The application ground segment consists of a Central Application Facility CAF and a network of eight Satellite Application Facilities SAFs dedicated to development and operational activities to provide satellite derived data to support specific user communities See next figure i Systems of the Data Acquisition EUM Geostationary C nitra EUM NOAA other data Systems Cooperation sources Data Processing Meteorological Products Archive amp Retrieval r Extraction Facility Data Centre Satellite Application EUMETSAT HQ EUMETSAT HQ Facilities SAFs J Figure 4 Conceptual scheme of the EUMETSAT Application Ground Segment Next figure reminds the current composition of the EUMETSAT SAF network in order of establishment O3M SAF ee GRAS SAF LSA SAF Nowcasting amp Ver
23. rnational Precipitation Working Group IR Infra Red IRM Institut Royal M t orologique of Belgium alternative of RMI ISAC Istituto di Scienze dell Atmosfera e del Clima of CNR Italy ITU istanbulTechnicalUniversity in Turkey LATMOS Laboratoire Atmospheres Milieux Observations Spatiales of CNRS in France LEO Low Earth Orbit LSA SAF SAF on Land Surface Analysis LST Local Satellite Time if referred to time or Land Surface Temperature if referred to temperature M t o France National Meteorological Service of France METU Middle East TechnicalUniversity in Turkey MHS Microwave Humidity Sounder on NOAA 18 and 19 and on MetOp MSG Meteosat Second Generation Meteosat 8 9 10 11 MVIRI Meteosat Visible and Infra Red Imager on Meteosat up to 7 MW Micro Wave NEAT Net Radiation NESDIS National Environmental Satellite Data and Information Services NMA National Meteorological Administration of Romania NOAA National Oceanic and Atmospheric Administration Agency and satellite NWC SAF SAF in support to Nowcasting amp Very Short Range Forecasting NWP Numerical Weather Prediction NWP SAF SAF on Numerical Weather Prediction The EUMETSAT Network of e Sotelite Application Facilities Support ydrology and We N O3M SAF OMSZ ORR OSI SAF PDF PEHRPP Pixel PMW PP PR PUM PVR RMI RR RU SAF SEVIRI SHMU SSM I SSMIS SYKE Teg TKK TMI TRMM TSMS TU Wien U MARF UniFe URD UTC VIS ZAMG Doc No SAF HSA
24. rovides general public information on H SAF H SAF products description rolling information on the H SAF implementation status an area for collecting updating information on the status of satellites and instruments used in H SAF anarea to collect Education and Training material anarea for forums on algorithms on validation campaigns etc indication of useful links specifically with other SAF s anarea for Frequently Asked Questions FAQ to alleviate the load on the Help desk The web site supports operations by providing daily schedule of H SAF product distribution administrative messages on changes of product version new algorithms etc The EUMETSAT Network of ation Doc No SAF HSAF PUM 04 Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 21 23 The web site contains some basic H SAF documents the ATDD Algorithms Theoretical Definition Document this Product User Manual However most working documents REP 3 Report of the Products Validation Programme REP 4 Report of the Hydrological Validation Programme etc programmatic documents PP Project Plan URD User Requirements Documents etc and engineering documents are to be found in the CNMCA ftp server restricted access see later for the URL The User Support For any question that cannot be solved by consulting the web site users have two different poss
25. s generally agreed to refer to the sampling distance between two successive product values assuming that they carry forward reasonably independent information The horizontal resolution descends from the instrument Instantaneous Field of View FOV sampling distance pixel Modulation Transfer Function MTF and number of pixels to co process for filtering out disturbing factors e g clouds or improving accuracy It may be appropriate to specify both the resolution Ax associated to independent information and the sampling distance useful to minimise aliasing problems when data have to undertake resampling e g for co registration with other data In PR OBS 4 the effective resolution is controlled by the MW derived products PR OBS 1 and PR OBS 2 therefore a figure representative of the PR OBS 4 resolution is Ax 30 km However the morphing procedure operates on a fixed grid sampling distance of 8 km intervals close to the SEVIRI IFOV over Europe 2 1 1 Vertical resolution if applicable The vertical resolution Az also is defined by referring to the vertical sampling distance between two successive product values assuming that they carry forward reasonably independent information The vertical resolution descends from the exploited remote sensing principle and the instrument number of channels or spectral resolution It is difficult to be estimated a priori it is generally evaluated a posteriori by means of the validation a
26. s generation chain Product coverage and appearance e Main product operational characteristics Horizontal resolution and sampling Observing cycle and time sampling Timeliness e Overview of the product validation activity Validation strategy Global statistics Product characterisation e Basic information on product availability Access modes Description of the code Description of the file structure An annex also provides common information on Objectives and products Evolution of H SAF products User service and Guide to the Products User Manual Although reasonably self standing the PUM s rely on other documents for further details Specifically e ATDD Algorithms Theoretical Definition Document for extensive details on the algorithms only highlighted here e PVR Product Validation Report for full recount of the validation activity both the evolution and the latest results These documents are structured as this PUM i e one document for each product They can be retrieved from the CNMCA site on HSAF web page at User Documents session On the same site to obtain user and password please contact the Help Desk It is interesting to consult although not closely connected to this PUM the full reporting on hydrological validation experiments impact studies e HVR Hydrological Validation Report spread in 10 Parts first one on requirements tools and models then 8 each one for one participating country and a last
27. using the 183 WSL method Laviola and Levizzani 2008 2009 during a severe storm over Southern Italy on 02 October 2009 Note for figure above retrieved rain rates at 01 00 UTC are morphed up to the new PMW orbit at 05 00 UTC Morphing results mapped on the 8 km grid and regularly updated every 30 min are shown here for a 1 hour resolution time Note that last two plates are used to describe the CMORPH reconstruction of rain Doc No SAF HSAF PUM 04 Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 10 23 fields between PMW product as at 05 00 UTC and that at 06 30 UTC not shown here but indicated by red ovals 1 2 7 Product specificity As expected from literature and confirmed by the product validation results the present PR OBS 4 product is more suitable to detect and estimate low intensity rainfall The other IR based H SAF product i e PR OBS 3 is on the contrary more performing in regimes of high rainfall rate mainly convective events AEN Doc No SAF HSAF PUM 04 satone Aopen Product User Manual PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 11 23 2 Product operational characteristics 2 1 Horizontal resolution and sampling The horizontal resolution Ax is the convolution of several features sampling distance degree of independence of the information relative to nearby samples To simplify matters it i
28. y Ozone amp Atmospheric f TRF Numerical Weather Operational Hydrology ShortRange Forecasting Ocean and Sea Ice Chemistry Monitoring Climate Monitoring Prediction GRAS Meteorology Land Surface Analysis amp Water Management Figure 5 Current composition of the EUMETSAT SAF Network in order of establishment H SAF objectives and products The H SAF was established by the EUMETSAT Council on 3 July 2005 its Development Phase started on 1 September 2005 and ended on 31 August 2010 The SAF is now in its first Continuous Development and Operations Phase CDOP which started on 28 September 2010 and will end on 28 February 2012 The H SAF objectives are a to provide new satellite derived productsfrom existing and future satellites with sufficient time and space resolution to satisfy the needs of operational hydrology identified products Doc No SAF HSAF PUM 04 Issue Revision Index 1 1 Product H04 PR OBS 4 Date 31 05 2012 Page 18 23 The EUMETSAT ok of satone Aapicahon Product User Manual PUM 04 e precipitation e soil moisture e snow parameters b to perform independent validation of the usefulness of the new productsfor fighting against floods landslides avalanches and evaluating water resources the activity includes e downscaling upscaling modelling from observed predicted fields to basin level e fusion of satellite derived measurements with data from radar and raingauge networks e assimilation
Download Pdf Manuals
Related Search