"How to get SMOS data"
Contents
1. Downloadable a ON a 1 MIR_BWSF1C Downloadable current baseline only MIR BWLD1C Downloadable MIR_BWLF1C Downloadable Z MIR SMUDP2 Downloadable a MIR OSUDP2 Downloadable 5MOS AUX 1 Aux Orderable Products L 2 AUX ECMWF MAL Aux On line Products L AUX ECMWF Downloadable MMOHS You can either order the data via the EOLi shopcart through the Multi Mission Order Handling Service MMOHS for data in the catalogue of the historical data or download the data directly via the EOLi download manager right clicking on an item in the table below the map for data in the rolling on line archive and only for the current baselineError Bookmark not defined The current baseline refers to the present version of the processors being used to process the SMOS data products Once it is decided to use a new version of processors due to improvements in the algorithms the current baseline will migrate to the previous baseline Both will be available on EOLi for a subset of data products The difference between the baselines will be communicated via the webpage 5 How are the data distributed For the subscription service the default distribution of SMOS data products is done through a FTP server either from ESAC at Villafranca or from the LTA in Kiruna with the user to collect the data as and when convenient A notification email with access details will be sent to you Alternatively if you are not able to2. for future acquisitions over specific areas of interest and or only for a particular time span To subscribe the user will have to submit a full proposal on http eopi esa int gt link to category 1 After submission of the proposal through the EOPI portal and signing the Terms and Conditions the user will be contacted by ESA s Help Desk EOHelp 2eo esa int once the proposal has been accepted by mission management to collect the user s data requirements and set up the subscription The following information will be needed see also Annex B o Which type of data access 1s requested see 3 2 1 o What data products will be required and for which period o Does the research project focus on a specific geographical area polygon coordinates required o If near real time NRT access to the data product is required the mission management office will need to be contacted e mail susanne mecklenburg esa int to discuss whether this can be accommodated o The nominal procedure for data delivery is via pull from a FTP i e for the user to collect his her data from a server If this 1s not feasible for the user the EO Help Desk needs to be contacted EOHelp 9 eo esa int to discuss alternatives o Will the user like to receive re processed data once the baseline for the processing of the data products changes 2 By searching the SMOS data product catalogue EOLI and submitting an order for selected archived products limited to 20 pr
3. How to get SMOS data If you are interested to use data of the Soil Moisture and Ocean Salinity mission for your scientific research you might find the following information helpful to guide you through the registration and ordering process 1 Which products are available The following SMOS data products will be available Level 1A product calibrated visibilities between receivers prior to applying image reconstruction Level 1B product output of the image reconstruction of the observations and comprising the Fourier component of the brightness temperature in the antenna polarisation reference frame Level 1C product multi angular brightness temperatures at the top of the atmosphere geolocated in an equal area grid system Two different Level 1C products are generated according to the surface type one containing only sea and the other only containing land pixels Two sets of information are available pixel wise and snapshot wise For each Level IC product there is also a browse product containing brightness temperatures for an incidence angle of 42 5 Level 2 soil moisture product containing not only the soil moisture retrieved but also a series of ancillary data derived from the processing nadir optical thickness surface temperature roughness parameter dielectric constant and brightness temperature retrieved at top of atmosphere and on the surface with the corresponding uncertainties Level 2 ocean salinity pro
4. cts available via subscription and EOLi PLEASE NOTE THAT ONLY FULL POL DATA WILL BE AVAILABLE NO DUAL POL DATA Product Type Context Average Average of Average Available via subscription EOli ordering Product Products Day Volume Day MB ordering for historic Size per data direct download file MB for recent data Error Bookmark not defined Science data LERNEN er KA Dual Pol mem ome 9 x pom Lu Full Pol MIR SC DIB 1705 Dual Pol Full Pol Dull Pol meme eee Dow om 13 E Full Pol WEE OE Dual Pol Full Pol MIR nnd C Browse Product Ocean Dual Pol Product Type Context Average Average of Average Available via subscription EOli ordering Product Products Day Volume Day MB ordering for historic Size per data direct download file MB for recent data Error Bookmark not defined MIR BWSFIC Browse Product Ocean Full Pol MIR BWLDIC Browse Product 3 5 28 100 X X Dual Pol MIR BWLFIC Browse Product 3 5 28 100 X X Land Full Pol MIR SMUDP2 15 415 X X Moisture CIEL JEANNE AN salinity TRU 20 360 Available on special request to EOHelp eo esa int Varying Auxiliary Data EAUX VTEC P Predicted VTEC lt L o T Ko AUX_ECMWF 50 1450 X AUX DFA MODISLAT 739 18 28 X oe mum DEumm 3 optical thickness AUX DGGTFO Forest optical eee 003 CU mete aana pops n probability X Product Type Context Average Average of Avera
5. duct containing three different ocean salinity values derived from retrieval algorithms using different assumptions for the surface roughness correction and the brightness temperature retrieved at the top of atmosphere and on the sea surface with the corresponding uncertainties Near real time product similar to the Level 1C product but adjusted to requirements of operational meteorological agencies such as ECMWF and M t oFrance available 3 hours from sensing It will contain brightness temperatures at the top of the atmosphere on an ISEA grid with reduced spatial resolution In addition a number of calibration and auxiliary data files will be made available The various data products are described in detail in the product specifications which can be found in the document library Level 0 Product Specification SO TN IDR GS 0003 LO Spec v3 4 2009 04 20 pdf Level 1 Product Specification SO TN IDR GS 0005 L1 Spec v5 9 2009 05 04 pdf Level 2 Product Specification SO TN IDR GS 0006 L2 Spec v4 2 2009 05 04 pdf NRT Product Specification SO ID DMS GS 0002 v2 2 pdf For a list of the most commonly used SMOS data products including file names content and average size of files please see Annex A In addition to the above mentioned SMOS data products provided by ESA there will also be level 3 global single instrument and level 4 global multi instrument data products being provided by national expert centres Cent
6. ge Available via subscription EOli ordering Product Products Day Volume Day MB ordering for historic Size per data direct download file MB for recent data Error Bookmark not defined AUX VTEC C Consolidated VTEC AUX VTEC R Analysis Rapid l VTEC
7. ode and click the Search Catalogue button bottom left Please refer to the EOLi quick guide for more detailed information http eoli esa int EOLIResources Other EOLIv6QuickGuide pdf A more complete user manual is also available on http eoli esa int EOLIResources Manual htm frame html The SMOS data products available on EOli are a subset of the data products being available via subscription and are split into see Figure below Alternative data delivery methods could be media CD ROM or DVD or pushing data products to your FTP server your FTP server will need to be accessible 100 of the time properly sized and accessible through a fast enough connection Refer to the table provided in Annex A for indication on the size and throughput for each data product types and let us know frequency in which you would like to receive data A catalogue of historical data for the present and past baseline and A rolling on line archive for the present baseline data remain in here for at least a week after acquisition For a list of the respective data products see Annex A File App ResultSet Map View Help EEEE eot Tin pnnt You are logged on aa a default user Collections E yo BEES LI e ZU ET a 5MOS MIRAS D FS Miras Current Baseline F MIR SC 018 Fi NIR SC F1B 1 MIR SCSD IC Fi MIR SCSFIC Fi NIR S LDIC A Fi MIR SCLF1C Preview ES nat Fi MIR EWSD1C available Preview na
8. oducts per order The catalogue also provides access immediate download but only one product at the time to the most recent data through the rolling on line archive For this type of data access the user will have to submit a registration form including a short description of the project on http eopi esa int gt link to registration No approval of the project by mission management is necessary access will be provided within 2 working days 3 Bulk data retrieval from the SMOS archive the user will have to submit a full proposal following the same procedure as outlined under 1 Mission management will then assess how to distribute the data before accepting the request 4 Searching and ordering SMOS products using the catalogue You can search SMOS data products using the EOLi application which can be installed on all major platforms from http earth esa int EOLi EOLi html ROL Earth Observation Link is ESA s client for Earth Observation Catalogue and Ordering Services Using EOL you can browse the metadata and preview images of SMOS data products Scientific users with a registered account can order or download products of various processing levels Starting from the EOLi main interface image below you reach the SMOS data collection by navigating the collection tree on the left panel Select the collections of interest specify a date range bottom left panel optionally draw an area of interest on the map using the set area m
9. re Aval de Traitement des Donnees CATDS France Soil Moisture Expert Centre CESBIO LINK Centre Aval de Traitement des Donnees CATDS France Ocean Salinity Expert Centre IFREMER LINK CP 34 Spain Barcelona Expert Centre BEC ICM UPC LINK 2 What does the data look like Note The examples given below are simulated SMOS data courtesy CESBIO and ACRI Level 1 Brightness temperatures From left One snapshot simultaneous observation for Level 1C product H pol fixed selected incidence angle 40 V pol Brightness temperature for one grid point images courtesy CESBIO Pot baad Meee J c J a wn c Level 2 soil moisture and ocean salinity u left and corresponding brightness temperature V pol at 42 5 at surface for same overpass right a images courtesy CESBIO Soil moisture retrieved over Africa Sea surface salinity left and corresponding brightness temperature V pol at 42 5 at 1 surface for same overpass right i images courtesy ACRI 3 How to order data Data is available to registered users only Registered users can obtain SMOS data in two different ways l By subscribing to the systematic distribution of products subscription service for continuous and regular flow of data all data products required by the user are made available via FTP to be collected by the user This 19 only
10. t available EURUPT j Fi MIR EWSFIC H E MIR EWLD1C I Fi MIR EWLF1C Fi MIR 5MUDFZ i Preview Fa MIR OSUDPZ SOUTH AMERICA nol A 2 Miras Previous Baseline available M 0 Miras On line Products Er Bl swos AUX Aux Orderable Products 2000 ki A Preview HM Aux On line Products um not ur Quary Moda TP avallable a Lu d c rt Se pe BE LLL I SCALE a JI B From EWOn 1 MIm RIR nuni Ar 2810 12 16 23 00 059 n em a Hl May Z00 2 Li Enn 3 mor MIN RIR AWEDIC Archived 2010 12 17 06 15 16 79 13 17 Previow Tim Height Widrh Ken eh et A Ie E nol jara nurnit Archived 281 Ll2 17 T 25 18 n8 08 May 2012 Ree 20017 08 lkol MIN MIR BWEDIC Archived 2810 12 17 07 23 18 09 avallable EE gt Latitude 8 28 Longitude 13744 Elevation 9 m Altitude 15000km RE eom Ei M SMOS 9M SMOS_MIRAS Ci Z Miras Current Baseline L 2 MIR SC D1B Yi MIR SC F1B EOLi catalogue dile SMOS data products o win scsric zi MIR SCLD1C 9j MIR SCLF1C A MIR BWSDIC RW alle 2 MIR_BWLD1C A MIR_BWLF1C Zi MIR_SMUDP2 Zi MIR OSUDP2 M Miras Previous Baseline Classic ordering via EOLI shopcart through a Miras On line Products 2 MIR_SC_D1B Downloadable 2 MIR_SC_F1B Downloadable 2 MIR_SCSD1C Downloadable E 2 MIR_SCSF1C Downloadable Direct download via M nunt RR n PT Z MIR SCLFIC Downloadable EOLI download manager lt N MIR BWSD1C
11. use this data distribution approach data can be pushed to you via FTP or you might receive the data via mail on CD ROM or DVD media Allow 1 or 2 days delay whenever electronic transfer is used 1 e FTP and a few days depending on your location for land shipment 6 What tools are available to view SMOS data products A number of tools are available to view SMOS data products ranging from data simulators prototype processors to software to visualise certain aspects of the data For a description please see SMOS tools pdf The tools can be downloading from SMOS End to End Simulator SEPS GS http www smos com pt SMOS LI Prototype Processor amp visualisation tool http www smos com pt SMOS L2 Soil Moisture Prototype Processor ftp www array ca 20090120 L28M CoreV4 SMOS L2 Sea Surface Salinity Prototype Processor http www smos esa int Tool http www enviport org 8080 argans smos builds op_03_04 smos sss2008 User manual http www enviport org 8080 argans smos docs deliverables delivered PPSUM smos sss2008 SMOS Data viewer ftp 193 146 123 163 smos software SMOS View SMOS Tool Box BEAM http www brockmann consult de beam wiki display SBOX SMOS Toolbox for BEAM SMOS Global Mapping Tool ftp 193 146 123 163 smos software GMT SMOS Comparison Tool ftp 193 146 123 163 smos software SCOT SMOS XML R WAPI ftp 193 146 123 163 smos software XML RW API ANNEX A SMOS data produ
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